CN106899641A

CN106899641A - The acquisition methods of data resource, server, control device and communication system

Info

Publication number: CN106899641A
Application number: CN201510965278.7A
Authority: CN
Inventors: 张家柱; 蔡东赟; 刘娇; 韩玉刚
Original assignee: Beijing Qihoo Technology Co Ltd; Qizhi Software Beijing Co Ltd
Current assignee: Beijing Qihoo Technology Co Ltd; Qizhi Software Beijing Co Ltd
Priority date: 2015-12-21
Filing date: 2015-12-21
Publication date: 2017-06-27

Abstract

The embodiment of the invention discloses a kind of acquisition methods of data resource, server, control device and communication system, wherein, method includes：First terminal equipment in Intranet in each subnet receives the data resource that push server is pushed according to the address information table for pre-building, data resource carries data resource ID；First terminal equipment data storage resource, and to the new information of the control device reported data resource in the affiliated subnet of first terminal equipment, new information includes address and the resource ID of first terminal equipment；Resource information list item set up in resource information table according to new information so as to control device or corresponding resource information list item is updated, wherein, resource information list item includes the corresponding relation between the address of terminal device and resource ID in subnet, subnet.The embodiment of the present invention network bandwidth resources caused by network congestion and the travelling of cross-region network are wasted caused by storm that can avoid upgrading in the prior art are wasted.

Description

The acquisition methods of data resource, server, control device and communication system

Technical field

The present invention relates to Internet technology, especially a kind of acquisition methods of data resource, server, control Control equipment and communication system.

Background technology

In actual applications, carried out at business using a certain application program through being commonly present same enterprises and institutions The situation of reason.For example, being both needed to be carried out at the tax using tax control software on the office terminal of the national tax bureau Reason, a certain bank at home head office, each branch, each subbranch, need on the office terminal of each outlet Service security is ensured using identical safe control.Considered based on factors such as business demand, safety, it is same The application program used on enterprises and institutions' office terminal is frequently necessary to carry out edition upgrading to carry out more Newly.

In the prior art, the application program for being used on same enterprises and institutions' office terminal carries out edition upgrading Mode be the update time for pre-setting application program, reach update time when, the unit is all to be done Public terminal is installed in the upgrading data packet that application program is obtained from the unit service device.For example, certain The general headquarters of one enterprise are arranged on A ground, the enterprise simultaneously multiple provinces at home, city, county be provided with it is many Individual branch company, all of office terminal unification in the enterprise is carried out at business using application-specific Reason, periodically or non-periodically generated by the server positioned at a certain place carries out version to the application-specific The upgrading data packet of this upgrading, all office terminals at the appointed time obtain special from server in enterprise The upgrading data packet for determining application program is upgraded.

Realize it is of the invention during, inventor has found that above-mentioned prior art carries out version to application program At least there is problems with the mode of this upgrading：

Unit Regional Distribution scope it is larger, using application program office terminal quantity it is more when, own Office terminal all obtains upgrading data packet in same update time from server, produces upgrading storm, while Substantial amounts of network link expense concurrently, flow expend can cause network congestion, or even network paralysis；Separately Outward, trans-regional, even transnational " flow travelling ", consumes the network bandwidth resources of preciousness, cost It is huge.

The content of the invention

An embodiment of the present invention technical problem to be solved is：A kind of acquisition side of data resource is provided Method, server, control device and communication system, with network caused by the storm that avoids upgrading in the prior art Network bandwidth resources are wasted caused by congestion and the travelling of cross-region network are wasted.

In order to solve the above technical problems, one side according to embodiments of the present invention, there is provided a kind of data The acquisition methods of resource, including：

First terminal equipment in Intranet in each subnet receives push server according to the address letter for pre-building The data resource that breath table is pushed, the data resource carries data resource mark ID；Wherein, resource ID One data resource of unique mark；The address information table includes more than one subnet in Intranet ID, Intranet Subnet ID and each subnet in first terminal equipment address；One Intranet includes more than one son Net, one Intranet of Intranet ID unique marks, one subnet of subnet ID unique marks；

First terminal equipment stores the data resource, and to the control in the affiliated subnet of first terminal equipment The new information of control equipment reported data resource, the new information includes the address of first terminal equipment With the resource ID；So that control device sets up resource letter according to the new information in resource information table Breath list item is updated to corresponding resource information list item, wherein, resource information list item includes son Corresponding relation in net, subnet between the address of terminal device and resource ID.

In another embodiment based on the above method of the present invention, the resource ID includes data resource Title ID, or the resource ID includes the title ID and revision ID of data resource.

In another embodiment based on the above method of the present invention, one above subnet includes affiliated All or part of subnet in Intranet.

In another embodiment based on the above method of the present invention, the quantity of first terminal equipment is one Or it is multiple, the first terminal equipment is the section terminating equipment in affiliated subnet.

In another embodiment based on the above method of the present invention, also include：

Acquisition request in response to receiving the data resource of second terminal equipment transmission, the subnet goes out Described acquisition is asked the control being transmitted in the affiliated subnet of second terminal equipment to set by mouth routing node device It is standby；Described acquisition asks to include the resource ID of the data resource of acquisition request；

Control device query resource information table, stores resource ID in the acquisition request in the acquisition subnet The address of the first terminal equipment of institute's mark data resource, and disappear to the response of second terminal equipment return first Breath, first response message includes the address of the first terminal equipment in affiliated subnet；

The second terminal equipment obtains the resource ID and is identified from the first terminal equipment in affiliated subnet Data resource.

A data resource is obtained in response to second terminal device request, is set in second terminal with multicast mode The acquisition request of data resource is sent in subnet belonging to standby, acquisition request includes the data of acquisition request The resource ID of resource and the address of second terminal equipment；

First terminal equipment obtains the second sound that request is returned for described in response to receiving affiliated subnet Message, second terminal equipment is answered to obtain resource ID institute mark data resource from first terminal equipment；Its In, the first terminal equipment is the end of resource ID institute mark data resource of being stored with the subnet End equipment, second response message includes the address of first terminal equipment.

In another embodiment based on the above method of the present invention, it is described with multicast mode in second terminal The acquisition request that data resource is sent in the affiliated subnet of equipment includes：

The acquisition that second terminal equipment sends data resource in affiliated subnet with multicast mode is asked；Or

The acquisition request of second terminal equipment sending data resource；

In response to receive it is described obtain request, the outlet routing node device of the subnet according to setting in advance Corresponding relation between the multicast address put and port, obtains the group of the multicast group that second terminal equipment is added The corresponding port in address is broadcast, by the corresponding port with multicast mode in son belonging to second terminal equipment The acquisition request of data resource is sent in net.

Other side according to embodiments of the present invention, there is provided a kind of server, as Push Service Device, including：

First memory cell, for storing the address information table for pre-building, the address information table includes In Intranet ID, Intranet in the subnet ID and each subnet of more than one subnet first terminal equipment ground Location；One Intranet includes more than one subnet, and one Intranet of Intranet ID unique marks, subnet ID is unique One subnet of mark；

Push unit, for according to the address information table, being set to the first terminal in each subnet in Intranet Standby propelling data resource, the data resource carries data resource mark ID；Wherein, resource ID is only One one data resource of mark.

Another aspect according to embodiments of the present invention, there is provided a kind of control device, including：

Second receiving unit, for receiving what first terminal equipment in the affiliated subnet of the control device was reported The new information of data resource, the new information includes address and the resource ID of first terminal equipment；

Second memory cell, for storage resource information table, the resource information list item includes the affiliated son Corresponding relation in net, the affiliated subnet between the address of terminal device and resource ID；

Updating block, for according to the new information set up in resource information table resource information list item or Person is updated to corresponding resource information list item.

Another aspect according to embodiments of the present invention, there is provided a kind of communication system, including Push Service Device and more than one Intranet, each Intranet include more than one subnet, and each subnet includes a control Equipment and multiple terminal devices；

The push server, for according to the address information table for pre-building, in each subnet in Intranet First terminal equipment propelling data resource, the data resource carry data resource mark ID；Its In, one data resource of resource ID unique mark；The address information table is included in Intranet ID, Intranet The address of first terminal equipment in the subnet ID and each subnet of more than one subnet；Intranet ID is unique One Intranet of mark, one subnet of subnet ID unique marks；

First terminal equipment in subnet, for storing the data resource, and to the first terminal equipment The new information of the control device reported data resource in affiliated subnet, the new information includes first The address of terminal device and the resource ID；

The control device, for setting up resource information table in resource information table according to the new information Item is updated to corresponding resource information list item, wherein, resource information list item includes subnet, son Corresponding relation in net between the address of terminal device and resource ID.

Acquisition methods, server, the control device of the data resource provided based on the above embodiment of the present invention And communication system, push server can be according to the address information table for pre-building, to each subnet in Intranet Interior first terminal equipment propelling data resource, wherein, an Intranet includes more than one subnet；First Terminal device can be stored after receiving data resource, and the data resource is provided as seed client, And to the new information of the control device reported data resource in affiliated subnet, control device is in resource information Resource information list item is set up in table or corresponding resource information list item is updated, wherein, resource letter Breath list item includes the corresponding relation in subnet, subnet between the address of terminal device and resource ID, so, Follow-up other-end equipment just can obtain data resource from the first terminal equipment in same subnet so that The download of data resource is limited in same subnet to be carried out, and without again from seed server downloading data Resource, it is to avoid all terminal devices trans-regional, even transnational " flow travelling ", phase in Intranet For the network bandwidth resources that prior art saves preciousness；In addition, all terminals set in avoiding Intranet It is standby obtain the upgrading storm that data resource is produced from server in same update time, it is to avoid while simultaneously The substantial amounts of network link expense of hair, flow expend caused network congestion, improve data resource access Efficiency, and ensure that the proper communication between other-end equipment.

Below by drawings and Examples, technical scheme is described in further detail.

Brief description of the drawings

The Description of Drawings embodiments of the invention of a part for specification are constituted, and together with description For explaining principle of the invention.

Referring to the drawings, according to following detailed description, the present invention can be more clearly understood from, wherein：

Fig. 1 is the flow chart of acquisition methods one embodiment of data resource of the present invention.

Fig. 2 is the flow chart of another embodiment of the acquisition methods of data resource of the present invention.

Fig. 3 is the flow chart of another embodiment of the acquisition methods of data resource of the present invention.

Fig. 4 is the structural representation of server one embodiment of the present invention.

Fig. 5 is the structural representation of another embodiment of server of the present invention.

Fig. 6 is the structural representation of control device one embodiment of the present invention.

Fig. 7 is the structural representation of another embodiment of control device of the present invention.

Fig. 8 is the structural representation of communication system one embodiment of the present invention.

Fig. 9 is the structural representation of another embodiment of communication system of the present invention.

Specific embodiment

Describe various exemplary embodiments of the invention in detail now with reference to accompanying drawing.It should be noted that：Remove Part and positioned opposite, the numeral of step non-to illustrate in addition, otherwise illustrate in these embodiments Expression formula and numerical value are not limited the scope of the invention.

Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not It is to be drawn according to actual proportionate relationship.

The description only actually at least one exemplary embodiment is illustrative, never conduct below To the present invention and its application or any limitation for using.

May not make to beg in detail for technology, method and apparatus known to person of ordinary skill in the relevant By, but in the appropriate case, the technology, method and apparatus should be considered as a part for specification.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once It is defined in a certain Xiang Yi accompanying drawing, then it need not be further begged in subsequent accompanying drawing By.

Fig. 1 is the flow chart of acquisition methods one embodiment of data resource of the present invention.As shown in figure 1, The acquisition methods of the embodiment data resource include：

102, push server according to the address information table for pre-building, in netting respectively inwards in each subnet First terminal equipment propelling data resource, the data resource carries data resource mark (ID).

Wherein, one data resource of resource ID unique mark.Exemplarily, resource ID can be data The title ID of resource, title ID for example can be title, numbering of data resource etc.；Or, money Source ID can also include the title ID and revision ID of data resource, and revision ID therein is used to identify to be worked as Preceding data resource belongs to which version of data resource.For example, a resource ID is：Tax control fail-safe software V2.2.0, wherein " tax control fail-safe software " is title ID, " V2.2.0 " is revision ID.

Address information table include Intranet ID, Intranet in more than one (i.e.：Partly or entirely) the son of subnet The address of first terminal equipment in net ID and each subnet.One Intranet can include more than one son Net, one Intranet of Intranet ID unique marks, one subnet of subnet ID unique marks.Wherein, in one Net is the internal network of enterprises and institutions or including one group of end with same data resource demand The network of end equipment.Subnet namely LAN (LAN), be in Intranet by a certain region by many station terminals The terminal device group that equipment is mutually unified into.

Specifically, address information table can include one or more Intranets ID, for same Intranet, one Individual address information table can include the subnet ID of whole subnet in the Intranet, now, all sons of the Intranet Net is in the range of the push of the push server；In addition, being directed to same Intranet, an address information Table can include the subnet ID of Intranet middle part molecular network, and now, the whole subnet of the Intranet is located at respectively In multiple push server in the range of the push of different push server.

In addition, address information table can store the address of part first terminal equipment in each subnet, the portion The quantity for dividing first terminal equipment can be one or more, but particular number should be less than in affiliated subnet The quantity of whole terminal devices, for example, can store wherein one or two terminal for each subnet setting Standby address.It is mutually to be distinguished with other-end equipment, the terminal device of address is stored in address information table Referred to as first terminal equipment.

104, first terminal equipment data storage resource, and to the control in the affiliated subnet of first terminal equipment The new information of control equipment reported data resource, the new information include first terminal equipment address and Resource ID, to perform operation 106.

106, control device sets up resource information list item or to phase according to new information in resource information table The resource information list item answered is updated, wherein, resource information list item includes that terminal sets in subnet, subnet Corresponding relation between standby address and resource ID.

Specific to the new information in operation 104, the resource information list item of foundation just sets including first terminal Standby address, the corresponding relation between the subnet ID of the affiliated subnet of first terminal equipment and resource ID.

The acquisition methods of the data resource provided based on the above embodiment of the present invention, push server can be with root According to the address information table for pre-building, provided to the first terminal equipment propelling data in each subnet in Intranet Source, wherein, an Intranet includes more than one subnet；First terminal equipment can after receiving data resource To store, the data resource is provided to the other-end equipment in affiliated subnet as seed client, And to the new information of the control device reported data resource in affiliated subnet, control device is in resource information Resource information list item is set up in table or corresponding resource information list item is updated, so, it is follow-up its He just can obtain data resource by terminal device from the first terminal equipment in same subnet so that data are provided The download in source is limited in same subnet to be carried out, and without again from seed server downloading data resource, All terminal devices in Intranet trans-regional, even transnational " flow travelling " are avoided, treasured is saved Expensive network bandwidth resources；In addition, in avoiding Intranet all terminal devices same update time from Server obtains the upgrading storm that data resource is produced, it is to avoid substantial amounts of network link simultaneously and concurrently is opened Pin, flow expend caused network congestion, improve the efficiency of data resource access, and ensure that it Proper communication between his terminal device.

Reciprocity (Peer to Peer, P2P) network is mutually interconnected with the identity of equality between multiple nodes Connect to realize the network of resource-sharing, compared to traditional client/server (Client/Service, C/S) pattern, P2P networks are by playing the ability of each peer node in network so that each is to constant pitch Point can participate in the service of network, can either serve as the requestor of network service, and to other peer nodes Request respond, there is provided resource and service, this reduces each peer node to center service The dependence of device.

Based on the above embodiment of the present invention, the first terminal equipment in subnet is used as a node data storage After resource, just can be as seed client；First terminal equipment is on the control device in affiliated subnet Report data resource new information after, control device set up in resource information table resource information list item or Corresponding resource information list item is updated, resource information list item includes terminal device in subnet, subnet Address and resource ID between corresponding relation, follow-up other-end equipment just can be according to the resource information List item obtains data resource from seed client, and thus, the subnet of the embodiment of the present invention, Intranet are formd P2P networks.

Fig. 2 is the flow chart of another embodiment of the acquisition methods of data resource of the present invention.Such as Fig. 2 institutes Show, compared with the embodiment shown in Fig. 1, the acquisition methods of the embodiment also include：

202, the acquisition request of the data resource in response to receiving the transmission of second terminal equipment, subnet goes out Acquisition request is transmitted to mouth routing node device the control device in the affiliated subnet of second terminal equipment, Therein acquisition asks to include the resource ID of the data resource of acquisition request.

204, control device query resource information table, storage is obtained in obtaining the affiliated subnet of second terminal equipment The address of the first terminal equipment of resource ID institute mark data resource in request, and returned to second terminal equipment The first response message is returned, first response message includes that institute's second terminal equipment belongs to the first end in subnet The address of end equipment.

206, second terminal equipment, can be with according to the address of first terminal equipment in the first response message P2P passages are set up in the interaction of one terminal device, and resource ID is obtained from the first terminal equipment in affiliated subnet Institute's mark data resource.

In the embodiment, when second terminal equipment needs to obtain data resource, can be from same subnet The address of the first terminal equipment of control device same subnet of the inquiry with the data resource, then from the One terminal device obtains data resource.So that the download of data resource is limited in same subnet carry out, And without again from seed server downloading data resource, it is to avoid all terminal devices are across ground in Intranet Area, even transnational " flow travelling ", save the network bandwidth resources of preciousness；In addition, avoiding All terminal devices obtain the upgrading wind that data resource is produced in same update time from server in Intranet Cruelly, it is to avoid substantial amounts of network link expense simultaneously and concurrently, flow expend caused by network congestion, carry The efficiency of data resource access high, and ensure that the proper communication between other-end equipment.

Fig. 3 is the flow chart of another embodiment of the acquisition methods of data resource of the present invention.Such as Fig. 3 institutes Show, compared with the embodiment shown in Fig. 1, the acquisition methods of the embodiment also include：

302, a data resource is obtained in response to second terminal device request, it is whole second with multicast mode The acquisition request of data resource is sent in the affiliated subnet of end equipment, acquisition request includes acquisition request The resource ID of data resource and the address of second terminal equipment.

304, in response to receiving in affiliated subnet first terminal equipment for obtaining the second sound that request is returned Message is answered, second terminal equipment, can be with according to the address of first terminal equipment in the second response message P2P passages are set up in the interaction of one terminal device, and resource ID institute mark data money is obtained from first terminal equipment Source.

Wherein, first terminal equipment identifies number by the resource ID that is stored with the affiliated subnet of second terminal equipment According to the terminal device of resource, the second response message includes the address of first terminal equipment.The embodiment In, when second terminal equipment needs to obtain data resource, can be sent with multicast mode in affiliated subnet The acquisition request of data resource, the first terminal equipment of the data resource that is stored with can respond the acquisition please Ask, second terminal equipment just directly obtains data resource from first terminal equipment.So that under data resource Load is limited in same subnet to be carried out, and without again from seed server downloading data resource, it is to avoid All terminal devices trans-regional, even transnational " flow travelling " in Intranet, saves the net of preciousness Network bandwidth resources；In addition, all terminal devices are in same update time from server in avoiding Intranet Obtain the upgrading storm that data resource is produced, it is to avoid substantial amounts of network link expense simultaneously and concurrently, stream Amount expends caused network congestion, improves the efficiency of data resource access, and ensure that other-end Proper communication between equipment.

It is whole second with multicast mode in operation 302 in a specific example of embodiment illustrated in fig. 3 The acquisition request that data resource is sent in the affiliated subnet of end equipment is specially：Second terminal equipment is in affiliated son The acquisition for sending data resource with multicast mode in net is asked.

In another specific example of embodiment illustrated in fig. 3, with multicast mode second in operation 302 The acquisition request that data resource is sent in the affiliated subnet of terminal device specifically can also be real in the following way It is existing：

The acquisition request of second terminal equipment sending data resource；

Request is obtained in response to receiving, the outlet routing node device of subnet is according to the multicast for pre-setting Corresponding relation between address and port, obtains the multicast address pair of the multicast group that second terminal equipment is added The port answered, data are sent by corresponding port with multicast mode in the affiliated subnet of second terminal equipment The acquisition request of resource.

Wherein it is possible to all terminal devices in a subnet add same multicast group, at this point it is possible to By to should subnet port with broadcast mode send obtain request；Can also be in a subnet it is all Terminal device adds different multicast groups, can by should whole ports of subnet sent out with broadcast mode Acquisition is sent to ask.

Specifically, routing node device can be by UDP The mode of (User Datagram Protocol, UDP) broadcast, data resource is sent by udp port Acquisition request.UDP is open system interconnection (Open System Interconnection, OSI) A kind of connectionless transport layer protocol in reference model, there is provided towards the simple unreliable information transmission of affairs Service, has the advantages that resource consumption is small, processing speed is fast, and usual audio, video and general data exist It is more using UDP during transmission, even if because they lose one or two packet once in a while, also will not be to receiving Result has much impact.

However, existing P2P networks excessively emphasize " equity ", the data interaction between each node is complete It is entirely unordered.For example, a Pekinese user, both may carry out file fragment with the user in Guangzhou Exchange, it is also possible to and certain user far away from the U.S. swaps.Obviously, unordered exchange result in meaningless Trans-regional even transnational " flow travelling ", which costs valuable internal and international bandwidth resources, It is costly.Also, substantial amounts of link overhead, flow expend can cause network congestion, or even network paralysis Paralysis.

Based on the embodiment shown in above-mentioned Fig. 2, Fig. 3, by the request of the data resource between terminal device It is limited in same subnet with transmission, and not across sub-nets transmission, therefore, the son in the embodiment of the present invention Net is the P2P networks of limitation, and the transmitting data resources between P2P nodes are limited in same subnet.From And trans-regional, even transnational " flow travelling " between terminal device is avoided, save preciousness Network bandwidth resources；In addition, it also avoid network caused by substantial amounts of network link expense, flow expend Congestion, improves the efficiency of data resource access, and ensure that the positive normal open between other-end equipment Letter.

Wherein, each subnet shown in Fig. 2 is considered as a P2P network for centralized model, uses Used as Centroid, simple structure is easy to management to control device.Due to being managed in resource set, therefore retrieval rings Should be than very fast, the network bandwidth of the whole subnet consumption of management service is relatively low.Each subnet shown in Fig. 3 can To regard a P2P network for decentralized model, without being retrieved by control device, all nodes as All it is equality.

Further, referring back to Fig. 3, if in embodiment illustrated in fig. 3, second terminal equipment is when default Acquisition request that is interior not receive for the response message that request is returned is obtained, can sending again, this Shi Zuowei another embodiment, after the operation 302 of embodiment illustrated in fig. 3, it is also an option that property ground Including following operation：

306, in response to receiving the acquisition request that second terminal equipment sends again, the Exit Road of subnet by Node device is transmitted to control device by request is obtained.

308, control device query resource information table, storage is obtained in obtaining the affiliated subnet of second terminal equipment The address of the first terminal equipment of resource ID institute mark data resource in request, and returned to second terminal equipment The first response message for returning, first response message includes the ground of the first terminal equipment in affiliated subnet Location.

310, second terminal equipment, can be with according to the address of first terminal equipment in the first response message P2P passages are set up in the interaction of one terminal device, and resource ID is obtained from the first terminal equipment in affiliated subnet Institute's mark data resource.

In based on the further embodiment of any embodiment shown in Fig. 2 or Fig. 3, if resource information table is not In the presence of the address of the first terminal equipment for storing resource ID institute mark data resource in above-mentioned acquisition request, say The data resource identified in the absence of resource ID in acquisition request in the bright subnet, can be from same Intranet Corresponding data resource is obtained in other subnets, can specifically be realized by following operation：

If resource information table does not exist first of resource ID institute mark data resource in the above-mentioned acquisition request of storage The address of terminal device, control device sends inquiry request to push server, and the inquiry request includes Obtain the subnet ID of resource ID and affiliated subnet in request；

Push server is inquired about subnet ID in above-mentioned inquiry request from address information table and is identified belonging to subnet In Intranet in other subnets first terminal equipment address, and to control device return the 3rd response message, 3rd response message includes the address of first terminal equipment in other subnets；

Control device is to the response message of second terminal device forwards the 3rd；

The address of first terminal equipment in other subnets of second terminal equipment in the 3rd response message, Interacted with the first terminal equipment in other subnets, first terminal equipment obtains resource ID from other subnets Institute's mark data resource.

Specifically, the subnet of more than three is there may be in same Intranet, i.e.,：Above-mentioned subnet ID is marked The subnet of knowledge there may be more than two other subnets in same Intranet, then push server can be with root According to preset standard, such as the standard such as optimal, the same operator in path between two subnets is therefrom selected One other subnet returns to control device.Or, push server can also by same Intranet it is all its The address of first terminal equipment returns to control device in his subnet, by control device according to preset standard, The standards such as such as optimal, the same operator in path between two subnets, therefrom select other son Net, first terminal sets in only sending other subnets of selection to second terminal equipment by the 3rd response message Standby address, and the address of first terminal equipment in remaining subnet need not be returned to.

Or, in based on the further embodiment of any embodiment shown in Fig. 2 or Fig. 3, if resource is believed Ground of the breath table in the absence of the first terminal equipment of resource ID institute mark data resource in the above-mentioned acquisition request of storage Location, control device can also ask push server to push the resource ID institute to the first terminal equipment again Mark data resource, can specifically be realized by following operation：

Push server is inquired about subnet ID in above-mentioned inquiry request from address information table and is identified in subnet The address of one terminal device, pushes above-mentioned inquiry request to the address of the first terminal equipment for inquiring again Middle resource ID institute mark data resource.Afterwards, after first terminal equipment receives the data resource for pushing, just Can start to perform operation 104~106.

By operation 106, control device sets up resource information table according to new information in resource information table Or after being updated to corresponding resource information list item, just son can be obtained with query resource information table The address of the first terminal equipment of resource ID institute mark data resource in above-mentioned acquisition request is stored in net, and The first response message is returned to second terminal equipment, first response message includes the in affiliated subnet The address of one terminal device；Ground of the second terminal equipment according to first terminal equipment in the first response message Location, is interacted with first terminal equipment, and obtaining resource ID from the first terminal equipment in affiliated subnet is identified Data resource.

In the acquisition methods embodiment of the various embodiments described above, disappeared by the first response message, the second response The possible only one of which in address of the first terminal equipment that breath or the 3rd response message are returned, it is also possible to have many It is individual.

The first terminal equipment returned by the first response message, the second response message or the 3rd response message Address when may have multiple, second terminal equipment obtains resource ID institute mark data from first terminal equipment During resource, specifically chosen one of first terminal equipment is used as seed client, and first with selection is whole End equipment is interacted, and resource ID institute mark data resource is obtained from the first terminal equipment of selection.Specifically, When selection first terminal equipment is as seed client, can be according to preset rules, for example, random choosing Select, or selection receives the first terminal equipment of response message at first, or can also be by response message Load of first terminal equipment of middle carrying etc., selection first terminal equipment is used as seed client.

In further embodiment based on the above-mentioned each acquisition methods embodiment of the present invention, can also include as follows Operation：

After second terminal equipment gets resource ID institute mark data resource, the data resource is stored, so as to There is provided the data resource to other terminal devices in same Intranet as seed client, and to this second The new information of the control device reported data resource in the affiliated subnet of terminal device, wraps in the new information Include address and the resource ID of second terminal equipment；

Control device sets up resource information list item or to corresponding according to new information in resource information table Resource information list item is updated, wherein, resource information list item includes terminal device in subnet, subnet Corresponding relation between address and resource ID.

A specific example according to acquisition modes embodiment of the present invention and it is unrestricted, can be by such as lower section Formula sets up resource information list item or corresponding resource information list item is updated：

Whether there is corresponding resource information list item, the corresponding money in control device query resource information table Source information list item is the money of the related resource ID for including the address of terminal device in new information and resource ID Source information list item；The title ID phases of the data resource that related resource ID therein is identified with resource ID Same, revision ID is different；

If in the presence of being updated to corresponding resource information list item according to new information；

Otherwise, if not existing, resource information list item is set up in resource information table according to new information.

In addition, in the above-mentioned each acquisition methods embodiment of the present invention, can also include：Push server to The PUSH message being updated to data resource that each terminal device in Intranet sends, in the PUSH message Including resource identification ID.Correspondingly, second terminal equipment is specifically in response to receiving PUSH message request hair Serve the acquisition request for stating data resource.

One of ordinary skill in the art will appreciate that：Realize all or part of step of above method embodiment Can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer-readable Take in storage medium, the program upon execution, performs the step of including above method embodiment；And it is foregoing Storage medium include：ROM, RAM, magnetic disc or CD etc. are various can be with Jie of store program codes Matter.

Fig. 4 is the structural representation of server one embodiment of the present invention.The server of the embodiment can use Make push server, perform the corresponding behaviour of push server in the above-mentioned each acquisition methods embodiment of the present invention Make.As shown in figure 4, the server of the embodiment includes the first memory cell and push unit.Wherein：

First memory cell, for storing the address information table for pre-building, the address information table includes interior Net the address of first terminal equipment in the subnet ID and each subnet of more than one subnet in ID, Intranet. Wherein, Intranet includes more than one subnet, one Intranet of Intranet ID unique marks, and subnet ID is only One one subnet of mark.

Push unit, for according to address information table, being pushed away to the first terminal equipment in each subnet in Intranet Data resource is sent, the data resource carries data resource mark ID.Wherein, resource ID unique mark One data resource.

Based on the server that the above embodiment of the present invention is provided, can be as push server, according to advance The address information table of foundation, to the first terminal equipment propelling data resource in each subnet in Intranet, so as to Stored after first terminal equipment receives data resource, as seed client to its in affiliated subnet His terminal device provides the data resource so that the download of data resource is limited in same subnet OK, and without again from seed server downloading data resource, it is to avoid in Intranet all terminal devices across Regional, even transnational " flow travelling ", saves the network bandwidth resources of preciousness；In addition, it is to avoid All terminal devices obtain the upgrading that data resource is produced in same update time from server in Intranet Storm, it is to avoid substantial amounts of network link expense simultaneously and concurrently, flow expend caused by network congestion, The efficiency of data resource access is improve, and ensure that the proper communication between other-end equipment.

Fig. 5 is the structural representation of another embodiment of server of the present invention.As shown in figure 5, and Fig. 4 Shown embodiment is compared, and the server of the embodiment also includes the first receiving unit, the first query unit With the first transmitting element.Wherein：

First receiving unit, for the inquiry request that receiving control apparatus send, the inquiry request includes Obtain the subnet ID of resource ID and the affiliated subnet of the control device in request.

First query unit, is identified for inquiring about subnet ID in above-mentioned inquiry request from address information table In the affiliated Intranet of subnet in other subnets first terminal equipment address.

First transmitting element, for returning to the 3rd response message to control device, in the 3rd response message The address of first terminal equipment in other subnets inquired including the first query unit.

Or, in another embodiment of server, the first query unit, for from address information table Subnet ID identifies the address of first terminal equipment in subnet in the middle above-mentioned inquiry request of inquiry.Correspondingly, In the embodiment, push unit is additionally operable to the first terminal equipment for being inquired to the first query unit again Address pushes resource ID institute mark data resource in inquiry request.

Further, in the server of the various embodiments described above of the present invention, push unit can be additionally used in inwardly Each terminal device in net pushes the PUSH message being updated to data resource, and the PUSH message includes Resource ID, so that the terminal device in Intranet downloads the data resource that the resource ID is identified.

Fig. 6 is the structural representation of control device one embodiment of the present invention.The control device of the embodiment Can be used to perform the corresponding operating of control device in the above-mentioned each acquisition methods embodiment of the present invention.Such as Fig. 6 institutes Show, the control device of the embodiment includes the second receiving unit, the second memory cell and updating block.Its In：

Second receiving unit, for receiving the number that first terminal equipment in the affiliated subnet of the control device is reported According to the new information of resource, the new information includes address and the resource ID of first terminal equipment.

Second memory cell, for storage resource information table, the resource information list item include belonging to subnet, Corresponding relation in affiliated subnet between the address of terminal device and resource ID.

Updating block, the new information for being received according to the second receiving unit is built in resource information table Vertical resource information list item is updated to corresponding resource information list item.

Exemplarily, updating block can specifically be believed with query resource information table with the presence or absence of corresponding resource Breath list item, the corresponding resource information list item is the related resource for including the address of terminal device and resource ID The resource information list item of ID, the title of the data resource that related resource ID therein is identified with resource ID ID is identical, revision ID is different；If in the presence of being carried out to corresponding resource information list item according to new information Update；Otherwise, if not existing, resource information list item is set up in resource information table according to new information.

Based on the control device that the above embodiment of the present invention is provided, the affiliated subnet of the control device can be received The new information of the data resource that middle first terminal equipment is reported, and according to the new information in resource information Resource information list item is set up in table or corresponding resource information list item is updated, so, affiliated son When other-end equipment needs to download the data resource in net, the ground of first terminal equipment just can be provided Location, so that other-end equipment just can obtain data resource from the first terminal equipment in same subnet, So that the download of data resource is limited in same subnet carry out, and without being downloaded from seed server again Data resource, it is to avoid trans-regional, even transnational " the flow trip of all terminal devices in Intranet OK ", the network bandwidth resources of preciousness are saved；In addition, all terminal devices are same in avoiding Intranet One update time obtains the upgrading storm that data resource is produced from server, it is to avoid simultaneously and concurrently a large amount of Network link expense, flow expend caused by network congestion, improve the efficiency of data resource access, And ensure that the proper communication between other-end equipment.

Fig. 7 is the structural representation of another embodiment of control device of the present invention.As shown in fig. 7, with figure Embodiment shown in 6 is compared, and the control device of the embodiment also sends including the second query unit volume second Unit.In the embodiment, the outlet routing node that the second receiving unit can also be used to receive affiliated subnet sets The acquisition request of the data resource that preparation is sent, acquisition request is whole by second in the affiliated subnet of control device End equipment is initiated, and obtaining request includes the resource ID of the data resource of acquisition request and second terminal equipment Address.

Second query unit, for query resource information table, is stored with the acquisition affiliated subnet of control device The address of the first terminal equipment of resource ID institute mark data resource in above-mentioned acquisition request

Second transmitting element, for the first response message returned to second terminal equipment, first response Message includes the address of the first terminal equipment in affiliated subnet, so as to second terminal equipment from affiliated son First terminal equipment in net obtains resource ID institute mark data resource.

In addition, the second transmitting element can be additionally used in the Query Result according to the second query unit, if resource is believed Breath table obtains the address of the first terminal equipment of resource ID institute mark data resource in request in the absence of storage, Inquiry request is sent to push server, the inquiry request includes obtaining resource ID and affiliated son in request The subnet ID of net.

In a further embodiment, the second receiving unit can be additionally used in receive push server for inquiry please Seek the 3rd response message of return, the 3rd response message includes first terminal equipment in other subnets Address.Wherein, other subnets by inquiry request subnet ID identify in the affiliated Intranet of subnet except control sets Subnet outside subnet belonging to standby.Correspondingly, the second transmitting element, is additionally operable to second terminal device forwards 3rd response message, so as to second terminal equipment, first terminal equipment obtains resource from other subnets accordingly ID institutes mark data resource.

Fig. 8 is the structural representation of communication system one embodiment of the present invention.The communication of the embodiment of the present invention System includes push server and more than one Intranet, and each Intranet includes more than one subnet, per height Net includes a control device and multiple terminal devices.For convenience, only shown in one in Fig. 8 Two subnet examples in net, structure composition of the accompanying drawing example not to communication system of the present invention is any Limitation.As shown in figure 8, in the embodiment：

Push server, for according to the address information table for pre-building, in each subnet in a certain Intranet First terminal equipment propelling data resource, the data resource carries data resource ID；Wherein, resource One data resource of ID unique marks, exemplarily, resource ID can be the title ID of data resource, Title ID for example can be title, numbering of data resource etc.；Or, resource ID can also include The title ID and revision ID of data resource, revision ID therein belong to several for identifying current data resource According to which version of resource；Address information table includes the subnet of more than one subnet in Intranet ID, Intranet The address of first terminal equipment in ID and each subnet；One Intranet of Intranet ID unique marks, subnet One subnet of ID unique marks.

First terminal equipment in subnet, for storing the data resource for receiving as the data resource Seed client provide the data resource to the other-end equipment in same subnet, and to this first eventually The new information of the control device reported data resource in the affiliated subnet of end equipment, the new information includes The address of first terminal equipment and resource ID.

Control device, for setting up resource information list item or right in resource information table according to new information Corresponding resource information list item is updated, wherein, resource information list item includes terminal in subnet, subnet Corresponding relation between the address of equipment and resource ID.

Exemplarily, control device whether there is corresponding resource in being particularly used in query resource information table Information table, the corresponding resource information list item is to include the address money related to resource ID of terminal device The resource information list item of source ID；The title ID of the data resource that related resource ID is identified with resource ID Identical, revision ID is different；If in the presence of being carried out more to corresponding resource information list item according to new information Newly；Otherwise, if not existing, resource information list item is set up in resource information table according to new information.

Based on the communication system that the above embodiment of the present invention is provided, push server can be according to pre-building Address information table, to the first terminal equipment propelling data resource in each subnet in Intranet, first terminal Equipment can be stored after receiving data resource, as seed client to other ends in affiliated subnet End equipment provides the data resource, and renewal to the control device reported data resource in affiliated subnet disappears Breath, control device sets up resource information list item or to corresponding resource information list item in resource information table It is updated, so, follow-up other-end equipment just can be obtained from the first terminal equipment in same subnet Take data resource so that the download of data resource is limited in same subnet to be carried out, and without again from kind Child servers downloading data resource, it is to avoid all terminal devices are trans-regional, even transnational in Intranet " flow travelling ", save preciousness network bandwidth resources；In addition, all terminals in avoiding Intranet Equipment obtains the upgrading storm that data resource is produced in same update time from server, it is to avoid simultaneously Network congestion caused by concurrent substantial amounts of network link expense, flow consuming, improves data resource visit The efficiency asked, and ensure that the proper communication between other-end equipment.

In another embodiment of communication system of the present invention, the second terminal equipment in subnet, for The acquisition for sending data resource with multicast mode in affiliated subnet is asked；And in affiliated subnet is received During the second response message that first terminal equipment is returned for acquisition request, obtained from first terminal equipment Above-mentioned resource ID institute mark data resource；Wherein, first terminal equipment is the resource that is stored with the subnet The terminal device of ID institutes mark data resource, the second response message includes the address of first terminal equipment.

Fig. 9 is the structural representation of another embodiment of communication system of the present invention.As shown in figure 9, with figure Embodiment shown in 8 is compared, and in the communication system of the embodiment, the outlet of each subnet is provided with route Node device.The routing node device is located at subnet exit, for example, can be router, interchanger Deng the equipment for carrying out route forwarding function to message.

In one of embodiment of communication system shown in Fig. 9, the second terminal equipment in subnet is used In the acquisition request for sending data resource, acquisition request includes the resource of the data resource of acquisition request ID；And according to the first response message for receiving, money is obtained from the first terminal equipment in affiliated subnet Source ID institutes mark data resource, the first response message therein includes that the first terminal in affiliated subnet sets Standby address.

Correspondingly, the outlet routing node device of subnet, for second terminal equipment in the subnet to be sent Acquisition request be transmitted to control device in the affiliated subnet of second terminal equipment.

Control device, is additionally operable to query resource information table, and above-mentioned acquisition request is stored in subnet where obtaining The address of the first terminal equipment of middle resource ID institute mark data resource, and return to the to second terminal equipment One response message.

In another embodiment of communication system shown in Fig. 9, the second terminal equipment in subnet is used for Send the acquisition request of data resource；And first terminal equipment is directed to acquisition in affiliated subnet is received When asking the second response message for returning, resource ID institute mark data resource is obtained from first terminal equipment； Wherein, first terminal equipment is the terminal device of the resource ID institute mark data resource that is stored with subnet, the Two response messages include the address of first terminal equipment.

The outlet routing node device of subnet, sends for the second terminal equipment in the subnet is received After obtaining request, according to the corresponding relation between the multicast address and port for pre-setting, second is obtained eventually The corresponding port of multicast address of the multicast group that end equipment is added, is existed by corresponding port with multicast mode The acquisition request of data resource is sent in the affiliated subnet of second terminal equipment.

In the present invention is above-mentioned with the embodiment of multicast mode transmission acquisition request, second terminal equipment is gone back Can be used to not receive the response message for request return is obtained in the Preset Time for sending acquisition request Shi Zaici sends acquisition request；And according to the first response message for receiving, from affiliated subnet First terminal equipment obtains resource ID institute mark data resource, and first response message includes second terminal The address of the first terminal equipment in affiliated subnet.Correspondingly：

The outlet routing node device of subnet, is additionally operable to the acquisition request for sending second terminal equipment again It is transmitted to control device.

Control device, is additionally operable to query resource information table, and storage obtains resource ID in request in obtaining subnet The address of the first terminal equipment of institute's mark data resource, and return to above-mentioned first sound to second terminal equipment Answer message.

In addition, in another embodiment of communication system of the present invention, control device, it may also be used in money Source information table obtains the ground of the first terminal equipment of resource ID institute mark data resource in request in the absence of storage During location, the data resource identified in the absence of resource ID in acquisition request in the subnet is illustrated, taken to pushing Business device sends inquiry request, and the inquiry request includes obtaining the subnet of resource ID and affiliated subnet in request ID；And the 3rd response message received to second terminal device forwards.Correspondingly：

Push server, is additionally operable to inquire about subnet ID in above-mentioned inquiry request from address information table and is identified In the affiliated Intranet of subnet in other subnets first terminal equipment address, and to control device return the 3rd sound Message is answered, the 3rd response message includes the address of first terminal equipment in other subnets.

Second terminal equipment, is additionally operable to according to the 3rd response message, the first terminal equipment from other subnets Obtain resource ID institute mark data resource.

Or, in the further embodiment of communication system of the present invention, control device, it may also be used in money Source information table obtains the ground of the first terminal equipment of resource ID institute mark data resource in request in the absence of storage During location, to push server send inquiry request, the inquiry request include obtain request in resource ID with The subnet ID of affiliated subnet.Correspondingly：

Push server, is additionally operable to inquire about subnet ID in above-mentioned inquiry request from address information table and is identified The address of first terminal equipment in subnet, pushes inquiry to the address of the first terminal equipment for inquiring again Resource ID institute mark data resource in request.

First terminal equipment can be stored after receiving data resource, and to control device reported data resource New information, control device according to new information set up in resource information table resource information list item or Corresponding resource information list item is updated.Afterwards, in a further embodiment, control device, also Can be used for query resource information table, resource ID institute mark data in above-mentioned acquisition request is stored in acquisition subnet The address of the first terminal equipment of resource, and the first response message is returned to second terminal equipment, this first Response message includes the address of the first terminal equipment in affiliated subnet.Correspondingly, second terminal sets It is standby, it is additionally operable to obtain resource ID institute mark data resource from the first terminal equipment in affiliated subnet.

In a specific example of above-mentioned communications system embodiment of the invention, by the first response message, The address of the first terminal equipment of the second response message or the 3rd response message feedback can be one, also may be used With multiple.When the address of first terminal equipment is for multiple, second terminal equipment specifically can therefrom select one Individual first terminal equipment, and obtain resource ID institute mark data resource from the first terminal equipment of selection.

In further embodiment based on the above-mentioned each communication system of the present invention, second terminal equipment also can use In after resource ID institute mark data resource is got, the data resource is stored so as to as the data resource Seed client, and to the control device reported data resource in the affiliated subnet of second terminal equipment New information, the new information includes address and the resource ID of second terminal equipment.Correspondingly, control Equipment, it may also be used for resource information list item is set up or to corresponding in resource information table according to new information Resource information list item be updated, wherein, resource information list item includes subnet, terminal device in subnet Address and resource ID between corresponding relation.

In further embodiment based on the above-mentioned each communication system of the present invention, push server, it may also be used for The PUSH message being updated to data resource is sent to each terminal device in Intranet, in the PUSH message Including resource identification ID.In the various embodiments described above, second terminal equipment is specifically receiving the PUSH message When request send obtain request.

In a specific example of the above-mentioned each communications system embodiment of the present invention, Push Service implement body can Realized with by the server architecture shown in Fig. 4 of the present invention or Fig. 5；Control device specifically can be by figure The structure of the control device shown in 6 or Fig. 7 is realized.

In practical application, the communication system of each embodiment shown in above-mentioned Fig. 8~Fig. 9 of the invention may be one The subsystem of the total system of data resource is provided, a total system can include multiple subsystems, subsystem In push server be less than two grades servers.In total system, on the push server of subsystem The push server of multiple upper strata ranks can be set, have one in the push server of multiple upper strata ranks Used as director server, according to the downward primary server propelling data resource of level, the push of multiple upper strata ranks takes Lowest level services device correspondence in business device is to the push server propelling data resource in subsystem.For example, One total system includes three subsystems, and a primary server, three subsystems are provided with total system In push server as secondary server, the data resource coverage of total system is A, three sons System is covered each by the different sub-network in the range of A, the data resource coverage point of such as three subsystems Not Wei A1, A2 and A3, then the coverage of A for A1, A2 and A3 coverage sum.Always One or more Intranets are potentially included in the coverage of system.Include multiple in the coverage of total system During Intranet, the coverage of multiple subsystems can be divided by standard of Intranet, for example, be covered each by one Or multiple Intranets, it is also possible to do not divided by standard of Intranet, for example, complete in alternate covering difference Intranet Portion or part subnet, but need to be minimum dividing unit with subnet.

Each embodiment is described by the way of progressive in this specification, what each embodiment was stressed All it is the difference with other embodiments, same or analogous part cross-reference between each embodiment .For system embodiment, because it is substantially corresponding with embodiment of the method, so the ratio of description Relatively simple, the relevent part can refer to the partial explaination of embodiments of method.

The embodiment of the invention provides following technical scheme：

1st, a kind of acquisition methods of data resource, including：

2nd, the method according to 1, the resource ID includes the title ID of data resource, or described Resource ID includes the title ID and revision ID of data resource.

3rd, the method according to 1 or 2, one above subnet include belonging to whole in Intranet or Part subnet.

4th, the method according to 1 to 3 any one, the quantity of first terminal equipment is one or many Individual, the first terminal equipment is the section terminating equipment in affiliated subnet.

5th, the method according to 1 to 4 any one, also includes：

6th, the method according to 1 to 4 any one, also includes：

7th, the method according to 6, it is described to be sent in the affiliated subnet of second terminal equipment with multicast mode The acquisition request of data resource includes：

The acquisition request of second terminal equipment sending data resource；

8th, the method according to 7, also includes：

Do not received in response to second terminal equipment and sent out again for the response message for obtaining request return The acquisition sent is asked, and the acquisition request is transmitted to control by the outlet routing node device of the subnet Control equipment；

Control device query resource information table, stores resource ID in the acquisition request in the acquisition subnet The address of the first terminal equipment of institute's mark data resource, and the first response returned to second terminal equipment Message, first response message includes the address of the first terminal equipment in affiliated subnet；

9th, the method according to 5 or 8, also includes：

If resource information table obtains first of resource ID institute mark data resource in request in the absence of storage is described The address of terminal device, control device sends inquiry request to push server, is wrapped in the inquiry request Include the subnet ID for obtaining resource ID and affiliated subnet in request；

Push server is inquired about subnet ID in the inquiry request from address information table and is identified belonging to subnet In Intranet in other subnets first terminal equipment address, and to the control device return the 3rd response disappear Breath, the 3rd response message includes the address of first terminal equipment in other subnets；

Control device is to the 3rd response message described in second terminal device forwards；

The second terminal equipment according to the 3rd response message, the first terminal equipment from other subnets Obtain resource ID institute mark data resource.

10th, the method according to 5 or 8, also includes：

Push server is inquired about subnet ID in the inquiry request from address information table and is identified in subnet The address of one terminal device, pushes the inquiry request to the address of the first terminal equipment for inquiring again Middle resource ID institute mark data resource；Perform afterwards the first terminal equipment receive push server according to The data resource that the address information table for pre-building is pushed.

11st, the method according to 10, also includes：

12nd, the method according to 5 to 11 any one, is disappeared by the first response message, the second response The address of the first terminal equipment that breath or the 3rd response message are returned is one；Or

The first terminal equipment returned by the first response message, the second response message or the 3rd response message Address for multiple；The second terminal equipment obtains the resource ID and identifies number from first terminal equipment Include according to resource：The one of first terminal equipment of second terminal equipment choice, and from first for selecting eventually End equipment obtains resource ID institute mark data resource.

13rd, the method according to 1 to 12 any one, also includes：

After second terminal equipment gets resource ID institute mark data resource, the data money is stored Source, and to the new information of the control device reported data resource in the affiliated subnet of second terminal equipment, The new information includes the address of second terminal equipment and the resource ID；

The control device according to the new information set up in resource information table resource information list item or Corresponding resource information list item is updated, wherein, resource information list item is included in subnet, subnet eventually Corresponding relation between the address of end equipment and resource ID.

14th, the method according to 13, it is described to set up resource information list item or to corresponding resource information List item be updated including：

Whether there is corresponding resource information list item, institute in the control device query resource information table It is the related resource ID for including the address of terminal device and the resource ID to state corresponding resource information list item Resource information list item；The title of the data resource that the related resource ID is identified with the resource ID ID is identical, revision ID is different；

If in the presence of being updated to corresponding resource information list item according to the new information；

Otherwise, if not existing, resource information table is set up in resource information table according to the new information .

15th, the method according to 5 to 14 any one, also includes：

Each terminal device in Intranet receives the push being updated to data resource that push server sends Message, the PUSH message includes the resource identification ID；

The second terminal equipment specifically sends the acquisition request in response to receiving the PUSH message.

16th, a kind of server, the server is used as push server, including：

17th, the server according to 16, also includes：

First receiving unit, for the inquiry request that receiving control apparatus send, wraps in the inquiry request Include the subnet ID for obtaining resource ID and the affiliated subnet of control device in request；

First query unit, is identified for inquiring about subnet ID in the inquiry request from address information table In the affiliated Intranet of subnet in other subnets first terminal equipment address；

First transmitting element, for returning to the 3rd response message, the 3rd response to the control device Message includes the address of first terminal equipment in described other subnets.

18th, the server according to 16, also includes：

First query unit, is identified for inquiring about subnet ID in the inquiry request from address information table The address of first terminal equipment in subnet；

The push unit, be additionally operable to again to the first terminal equipment for inquiring address push described in look into Ask resource ID institute mark data resource in request.

19th, the server according to 16 to 18 any one, the push unit is additionally operable to institute State each terminal device in Intranet and push the PUSH message being updated to data resource, the PUSH message Include the resource ID.

20th, a kind of control device, including：

21st, the control device according to 20, second receiving unit is additionally operable to receive described affiliated The acquisition request of the data resource that the outlet routing node device of subnet sends, it is described to obtain request by described Second terminal equipment in affiliated subnet is initiated, and described acquisition asks to include the data resource of acquisition request Resource identification ID and second terminal equipment address；

The control device also includes：

Second query unit, for query resource information table, obtains in the acquisition affiliated subnet described in storage Take the address of the first terminal equipment of resource ID institute mark data resource in request；

Second transmitting element, for the first response message returned to second terminal equipment, first sound Answer message include belonging to first terminal equipment in subnet address, so as to the second terminal equipment from First terminal equipment in affiliated subnet obtains resource ID institute mark data resource.

22nd, the control device according to 21, second transmitting element is additionally operable to according to the second inquiry The Query Result of unit, if resource information table identifies number in the absence of resource ID in the storage acquisition request According to the address of the first terminal equipment of resource, inquiry request, the inquiry request are sent to push server Include the subnet ID for obtaining resource ID and affiliated subnet in request.

23rd, the control device according to 22, second receiving unit is additionally operable to receive Push Service The 3rd response message that device is returned, the 3rd response message includes first terminal equipment in other subnets Address；Described other subnets by the inquiry request subnet ID identify in the affiliated Intranet of subnet except institute State the subnet outside affiliated subnet；

Second transmitting element, is additionally operable to the 3rd response message described in second terminal device forwards, with Toilet states second terminal equipment first terminal equipment from other subnets and obtains resource ID institute mark data Resource.

24th, the control device according to 21 to 23 any one, the updating block is specific to use In：

Whether there is corresponding resource information list item, corresponding resource in query resource information table Information table is the resource information table of the related resource ID for including the address of terminal device and the resource ID ；The related resource ID is identical with the title ID of the data resource that the resource ID is identified, version This ID is different；

25th, a kind of communication system, including push server and more than one Intranet, each Intranet include one Individual above subnet, each subnet includes a control device and multiple terminal devices；

26th, the system according to 25, the resource ID includes the title ID, Huo Zhesuo of data resource State title ID and revision ID of the resource ID including data resource.

27th, the system according to 25 or 26 is complete in one above subnet Intranet including belonging to Portion or part subnet.

28th, the system according to 25 to 27 any one, the quantity of first terminal equipment for one or Multiple, the first terminal equipment is the section terminating equipment in affiliated subnet.

29th, the system according to 25 to 28 any one, the outlet of each subnet is provided with routing node Equipment；

Second terminal equipment in subnet, the acquisition for sending data resource is asked；It is described to obtain request Include the resource ID of the data resource of acquisition request；And according to the first response message for receiving, from First terminal equipment in affiliated subnet obtains resource ID institute mark data resource, first response Message includes the address of the first terminal equipment in affiliated subnet；

The outlet routing node device of the subnet, sets for the acquisition request to be transmitted into second terminal Control device in subnet belonging to standby；

The control device, is additionally operable to query resource information table, and the acquisition is stored in the acquisition subnet The address of the first terminal equipment of resource ID institute mark data resource in request, and returned to second terminal equipment Return first response message.

30th, the system according to 25 to 28 any one, the second terminal equipment in subnet, is used for The acquisition for sending data resource with multicast mode in affiliated subnet is asked；And receiving affiliated subnet During the second response message that middle first terminal equipment is returned for the acquisition request, from first terminal equipment Obtain resource ID institute mark data resource；Wherein, the first terminal equipment be the subnet in deposit The terminal device of resource ID institute mark data resource is contained, second response message includes first The address of terminal device.

31st, the system according to 25 to 28 any one, the outlet of each subnet is provided with routing node Equipment；

Second terminal equipment in subnet, the acquisition for sending data resource is asked；And receiving During the second response message that first terminal equipment is returned for the acquisition request in affiliated subnet, from first Terminal device obtains resource ID institute mark data resource；Wherein, the first terminal equipment is described The terminal device of the resource ID institute mark data resource that is stored with subnet, in second response message Address including first terminal equipment；

The outlet routing node device of the subnet, for after the acquisition request is received, according to pre- Corresponding relation between the multicast address for first setting and port, obtains the multicast group that second terminal equipment is added The corresponding port of multicast address, by the corresponding port with multicast mode in second terminal equipment institute The acquisition request of data resource is sent in category subnet.

32nd, the system according to 30 or 31, the second terminal equipment is additionally operable to do not receiving Described acquisition is sent when asking the response message for returning for the acquisition again to ask；And according to reception The first response message for arriving, obtains the resource ID and identifies number from the first terminal equipment in affiliated subnet According to resource, first response message includes the address of the first terminal equipment in affiliated subnet；

The outlet routing node device of the subnet, is additionally operable to that the acquisition request is transmitted to control and is set It is standby；

33rd, the system according to 29 or 32, the control device is additionally operable in resource information table not During in the presence of the address for storing the first terminal equipment for obtaining resource ID institute mark data resource in request, To push server send inquiry request, the inquiry request include it is described obtain request in resource ID with The subnet ID of affiliated subnet；And the 3rd response message received to second terminal device forwards；

The push server, is additionally operable to inquire about subnet ID institutes in the inquiry request from address information table In the mark affiliated Intranet of subnet in other subnets first terminal equipment address, and returned to the control device The 3rd response message is returned, the 3rd response message includes the ground of first terminal equipment in other subnets Location；

The second terminal equipment, is additionally operable to according to the 3rd response message, first from other subnets Terminal device obtains resource ID institute mark data resource.

34th, the system according to 29 or 32, the control device is additionally operable in resource information table not During in the presence of the address for storing the first terminal equipment for obtaining resource ID institute mark data resource in request, To push server send inquiry request, the inquiry request include it is described obtain request in resource ID with The subnet ID of affiliated subnet；

The push server, is additionally operable to inquire about subnet ID institutes in the inquiry request from address information table The address of first terminal equipment in mark subnet, pushes to the address of the first terminal equipment for inquiring again Resource ID institute mark data resource in the inquiry request.

35th, the system according to 34, the control device is additionally operable to query resource information table, obtains The ground of the first terminal equipment for obtaining resource ID institute mark data resource in request is stored in the subnet Location, and the first response message is returned to second terminal equipment, first response message includes affiliated son The address of the first terminal equipment in net；

The second terminal equipment, is additionally operable to obtain the resource from the first terminal equipment in affiliated subnet ID institutes mark data resource.

36th, the system according to any one in 29~30,32~35, by the first response message, The address of the first terminal equipment that two response messages or the 3rd response message are returned is one；Or

The first terminal equipment returned by the first response message, the second response message or the 3rd response message Address for multiple；The second terminal equipment, specifically chosen one of first terminal equipment, and from The first terminal equipment of selection obtains resource ID institute mark data resource.

37th, the system according to 25 to 36 any one, the second terminal equipment, is additionally operable to After getting resource ID institute mark data resource, the data resource is stored, and to the second terminal The new information of the control device reported data resource in the affiliated subnet of equipment, the new information includes The address of second terminal equipment and the resource ID；

The control device, is additionally operable to set up resource information in resource information table according to the new information List item is updated to corresponding resource information list item, wherein, resource information list item include subnet, Corresponding relation in subnet between the address of terminal device and resource ID.

38th, the system according to 37, the control device sets up resource information list item or to corresponding When resource information list item is updated, specifically for：

39th, the system according to 29 to 38 any one, the push server is additionally operable to inwardly Each terminal device in net sends the PUSH message being updated to data resource, is wrapped in the PUSH message Include the resource identification ID；

The second terminal equipment, specifically please in response to receiving the PUSH message transmission acquisition Ask.

40th, the system according to 25 to 39 any one, the push server be specially 16 to Server described in 19 any one；

The control device is specially the control device described in 20 to 24 any one.

Methods and apparatus of the present invention may be achieved in many ways.For example, can be by software, hard Part, firmware or software, hardware, any combinations of firmware realize methods and apparatus of the present invention.With Said sequence the step of methods described is not limited merely to illustrate, the step of the method for the present invention In order described in detail above, unless specifically stated otherwise.Additionally, in some embodiments In, also the present invention can be embodied as recording program in the recording medium, these programs are included for realizing The machine readable instructions of the method according to the invention.Thus, the present invention also covering storage is for performing basis The recording medium of the program of the method for the present invention.

Description of the invention in order to example and description for the sake of and be given, and be not exhaustively or Limit the invention to disclosed form.Many modifications and variations are for one of ordinary skill in the art Speech is obvious.Selection and description embodiment be in order to more preferably illustrate principle of the invention and practical application, And make one of ordinary skill in the art it will be appreciated that the present invention is suitable to carrying for special-purpose so as to design The various embodiments of various modifications.

Claims

1. a kind of acquisition methods of data resource, it is characterised in that including：

2. method according to claim 1, it is characterised in that the resource ID includes data money The title ID in source, or the resource ID includes the title ID and revision ID of data resource.

3. method according to claim 1 and 2, it is characterised in that one above subnet bag Include all or part of subnet in affiliated Intranet.

4. the method according to claims 1 to 3 any one, it is characterised in that first terminal sets Standby quantity is one or more, and the first terminal equipment is the section terminating equipment in affiliated subnet.

5. the method according to Claims 1-4 any one, it is characterised in that also include：

6. the method according to Claims 1-4 any one, it is characterised in that also include：

7. method according to claim 6, it is characterised in that it is described with multicast mode second eventually The acquisition request that data resource is sent in the affiliated subnet of end equipment includes：

The acquisition request of second terminal equipment sending data resource；

8. a kind of server, it is characterised in that the server is used as push server, including：

9. a kind of control device, it is characterised in that including：

10. a kind of communication system, it is characterised in that including push server and more than one Intranet, often Individual Intranet includes more than one subnet, and each subnet includes a control device and multiple terminal devices；