CN110062295A - A kind of file resource acquisition methods and system - Google Patents
A kind of file resource acquisition methods and system Download PDFInfo
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- CN110062295A CN110062295A CN201910319105.6A CN201910319105A CN110062295A CN 110062295 A CN110062295 A CN 110062295A CN 201910319105 A CN201910319105 A CN 201910319105A CN 110062295 A CN110062295 A CN 110062295A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6375—Control signals issued by the client directed to the server or network components for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the invention provides a kind of file resource acquisition methods and systems.The described method includes: the storage server, which is received, transmits request by the file that the view networked terminals are sent；The storage server is transmitted according to the file requests, and sends the corresponding card information of the storage server to the view networked terminals；The view networked terminals exchange mode according to business card and file fragmentation data are transmitted to the storage server according to the card information；The storage server parses the file fragmentation data, to obtain the file resource in the file fragmentation data, and the file resource is stored in local disk.The embodiment of the present invention obtains terminal current image total number resource by storage server in real time, and the real-time screenshotss of terminal are obtained by picture file list protocol, achievees the purpose that store terminal screenshot picture above view networking side storage server.
Description
Technical field
The present invention relates to view networking technology fields, more particularly to a kind of file resource acquisition methods and a kind of file resource
Acquisition system.
Background technique
With the widespread development of view networking service in China, connection interaction technique is regarded in every profession and trade depending on networking high definition
Play very important effect.
And the picture resource of networked terminals interception is regarded, because limitation is locally stored, otherwise can not can go out without limitation screenshotss operation
Now local screenshot picture papers continued generates the problem of covering old file, can not protect resource integrity.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of file resource acquisition methods to solve the above problems and a kind of file resource obtain system.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of file resource acquisition methods, the method applications
It networks in view, wherein include view networked terminals and storage server in the view networking；The described method includes: the storage clothes
Device reception be engaged in by the file transmission request for regarding networked terminals and sending；The storage server is asked according to file transmission
It asks, sends the corresponding card information of the storage server to the view networked terminals；The view networked terminals are according to the name
Piece information exchanges mode according to business card and file fragmentation data is transmitted to the storage server；The storage server is to institute
It states file fragmentation data to be parsed, to obtain the file resource in the file fragmentation data, and the file resource be protected
It is resident locally disk.
Preferably, mode is exchanged according to business card and passes fragment data according to the card information in the view networked terminals
After the step of transporting to the storage server, further includes: the storage server receive the file fragmentation data it
Afterwards, a listed files receiving thread is opened；The adjacent data of file fragmentation twice are obtained by the listed files receiving thread
Receiving time interval；Judge whether the receiving time interval is greater than prefixed time interval；It is greater than at the receiving time interval
In the case where the prefixed time interval, the listed files receiving thread is exited.
Preferably, it is described judge the step of whether the receiving time interval is greater than prefixed time interval after, also wrap
Include: in the case where the receiving time interval is less than or equal to the prefixed time interval, the listed files receiving thread is sentenced
Whether the file fragmentation data in disconnected current group reach setting fragment numerical value；File fragmentation data in the current group
It in the case where reaching setting fragment numerical value, sends to the view networked terminals without packet loss confirmation message, and executes the storage clothes
Business device parses the file fragmentation data, to obtain the file resource in the file fragmentation data, and by the text
Part resource conservation is in the local disk the step of.
Preferably, judge whether the file fragmentation data in current group reach setting in the listed files receiving thread
After the step of fragment numerical value, further includes: the file fragmentation data in the current group, which are not up to, sets fragment numerical value
In the case of, the listed files receiving thread sends packet loss confirmation message to the view networked terminals；The packet loss confirmation message
In include lose fragment serial number；The view networked terminals obtain and the loss according to the loss fragment serial number from local
The corresponding file resource of fragment serial number；It is described that the corresponding file resource integration of the loss fragment serial number is attached most importance to depending on networked terminals
Transmitting file fragment data；The re-transmission file fragmentation data are exchanged mode according to business card and are transmitted to institute by the view networked terminals
State storage server.
Preferably, after described the step of sending to the view networked terminals without packet loss confirmation message, further includes: described
Listed files receiving thread judges whether the file fragmentation data in all groupings are transmitted；If so, exiting the text
Thread is transmitted in part list；If it is not, then executing described by the adjacent file fragmentation data twice of listed files receiving thread acquisition
Receiving time interval the step of.
Preferably, the file resource is screenshot picture resource.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of file resources to obtain system, the system application
It networks in view, wherein include view networked terminals and storage server in the view networking；The system comprises: file transmission is asked
Receiving module is sought, is received for the storage server and request is transmitted by the file that the view networked terminals are sent；Card information
Sending module is transmitted according to the file for the storage server and is requested, and sends the storage to the view networked terminals
The corresponding card information of server；File fragmentation data transmission module, for the view networked terminals according to the card information,
Mode is exchanged according to business card, and file fragmentation data are transmitted to the storage server；File resource preserving module, for described
Storage server parses the file fragmentation data, to obtain the file resource in the file fragmentation data, and will
The file resource is stored in local disk.
Preferably, further includes: receiving thread opening module, for receiving the file fragmentation in the storage server
After data, a listed files receiving thread is opened；Time interval obtains module, for by the listed files receiving thread
Obtain the receiving time interval of the adjacent data of file fragmentation twice；Time interval judgment module, for judging the receiving time
Whether interval is greater than prefixed time interval；Receiving thread exits module, described default for being greater than at the receiving time interval
In the case where time interval, the listed files receiving thread is exited.
Preferably, further includes: fragment data judgment module, it is described default for being less than or equal at the receiving time interval
In the case where time interval, the listed files receiving thread judges whether the file fragmentation data in current group reach setting
Fragment numerical value；Without packet loss message transmission module, reach setting fragment number for the file fragmentation data in the current group
In the case where value, send to the view networked terminals without packet loss confirmation message, and execute the file resource preserving module.
Preferably, further includes: the case where file fragmentation data in the current group not up to set fragment numerical value
Under, the listed files receiving thread sends packet loss confirmation message to the view networked terminals；It is wrapped in the packet loss confirmation message
Contain loss fragment serial number；The view networked terminals obtain and the loss fragment according to the loss fragment serial number from local
The corresponding file resource of serial number；It is described that the corresponding file resource of the loss fragment serial number is integrated into re-transmission text depending on networked terminals
Part fragment data；The re-transmission file fragmentation data are exchanged mode according to business card and are transmitted to described deposit by the view networked terminals
Store up server.
Preferably, further includes: file fragmentation data judgment module judges all points for the listed files receiving thread
Whether the file fragmentation data in group are transmitted；Second receiving thread exits module, for the file in all groupings
In the case that fragment data is transmitted, the listed files receiving thread is exited；Time interval obtains execution module, is used for
In the case that file fragmentation data in one or more packets are transmitted, execute the time interval and obtain module.
Preferably, the file resource is screenshot picture resource.
The embodiment of the invention also discloses a kind of devices, comprising:
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors
When, so that described device executes one or more file resource acquisition methods as described in the embodiments of the present invention.
The embodiment of the invention also discloses the computer programs of a kind of computer readable storage medium, storage to handle
Device executes file resource acquisition methods as described in the embodiments of the present invention.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, the file transmission request by sending depending on networked terminals is received by storage server, deposited
Server is stored up according to file transmission request, the corresponding card information of storage server is sent to view networked terminals, depending on networked terminals
According to card information, mode is exchanged according to business card, file fragmentation data are transmitted to storage server, storage server is to file
Fragment data is parsed, and to obtain the file resource in file fragmentation data, and file resource is stored in local disk.This
Inventive embodiments obtain terminal current image total number resource by storage server in real time, and pass through picture file list protocol
It obtains the real-time screenshotss of terminal, achievees the purpose that store terminal screenshot picture above view networking side storage server.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of the invention；
Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway；
Fig. 5 is a kind of step flow chart of file resource acquisition methods embodiment of the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of file resource acquisition device embodiment of the embodiment of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
First video flow.It is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
(Circuit Switching) meets Streaming demand using Packet Switching depending on networking technology.Depending on skill of networking
Art has flexible, the simple and low price of packet switch, is provided simultaneously with the quality and safety assurance of circuit switching, realizes the whole network friendship
Change the seamless connection of formula virtual circuit and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether
Net association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).Metropolitan Area Network (MAN) can be divided on the whole depending on networking
(or national net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether
Net association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine module, are forwarded: 1) end if meeting the following conditions
It is less than that mouth sends caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, packet
Include the operation such as initialization, read-write to hard disk；CPU module 203 be mainly responsible for access switch, terminal (not shown) it
Between protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 304 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, may include two kinds of situations:
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 308 is configured by CPU module 304, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
| DA | SA | Reserved | Payload | CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
With reference to Fig. 5, a kind of step flow chart of file resource acquisition methods embodiment of the embodiment of the present invention, institute are shown
State method and be applied to view networking, wherein include regarding networked terminals and storage server in view networking, can specifically include as
Lower step:
Step 501: the storage server, which is received, transmits request by the file that the view networked terminals are sent.
It in embodiments of the present invention, is the terminal for referring to the accession to view networking depending on networked terminals, regarding networked terminals can be intelligence
Mobile phone, tablet computer, smart television, E-book reader, multimedia player, pocket computer on knee and desktop computer
Equal electronic equipments.
Storage server refers to the server for being set to the file for storing view networked terminals of view networked server side.
File transmission request refers to the request of the transmission file initiated to view networked server from initiating depending on networked terminals.
When regarding networked terminals needs preservation file resource in regarding networked server, file transmission request can be generated,
And file transmission request is sent to view networked server.
Depending on networked server after receiving the file transmission request that view networked terminals are sent, file can be transmitted and be asked
It asks and is sent to storage server.
After storage server receives file transmission request, step 502 is executed.
Step 502: the storage server is transmitted according to the file requests, to described depending on depositing described in networked terminals transmission
Store up the corresponding card information of server.
Card information refers to card information corresponding to storage server, i.e. storage server is stored in view networked server
Data receiver address.
Each view networked terminals can store a fixed data on view networked server after access view networking
Receive address, i.e. card information.In the embodiment of the present invention, storage server is considered as a virtual terminal, in view the Internet services
Device side can save the card information of storage server, using as subsequent data transfer address.
It, can be by the business card of storage server after storage server receives the file transmission request of view networked terminals
Information is sent to view networked terminals, and executes step 503.
Step 503: the view networked terminals exchange mode for file fragmentation data according to the card information, according to business card
It is transmitted to the storage server.
After business card exchange refers to that each view networked terminals network, there are a fixed data to connect on depending on networked server
Receive address, that is, the card information of terminal.It is the equal of direct depending on sending data packet by name sheet mode between networked terminals
Using link channel sending and receiving data packet, avoid depending on consuming cpu in networked server forwarding packet procedures, than using commonly in the past
8f85,8785 agreements transmission data packet are high-efficient, packet payload length improves tens times.
In embodiments of the present invention, storage server is considered as virtual terminal, and saves the card information of storage server
With the card information of view networked terminals.And then realize that the data between view networked terminals and storage server are handed over according to card information
Mutually, with improve data transfer speed.
File fragmentation data refer to transmits file resource in the form of fragment data, is similar to multiple file datas
The form of packing.
After the card information for receiving storage server depending on networked terminals, it can believe according to the business card of storage server
File resource is integrated into file fragmentation data, and file fragmentation data are transmitted to storage by the way of business card exchange by breath
Server.
In view networked terminals according to card information, mode is exchanged according to business card, file fragmentation data are transmitted to storage service
After device, step 504 is executed.
Step 504: the storage server parses the file fragmentation data, to obtain the file fragmentation number
File resource in, and the file resource is stored in local disk.
In embodiments of the present invention, file resource can be screenshot picture resource, for example, user is in browsing pictures, or sight
It sees during video or browsing document etc., the picture of institute's screenshot.
Certainly, file resource can also be video resource, textual resources etc. that user saves, specifically, can basis
Depending on actual conditions, for the concrete form of file resource, the embodiment of the present invention is without restriction.
It, can be to file fragmentation data after the file fragmentation data that storage server receives that view networked terminals are sent
It is parsed, to obtain the file resource in file fragmentation data, and file resource is stored in local disk.
Certainly, file fragmentation number can be received in storage server with listed files receiving thread in storage server
According to later, file fragmentation data are judged by listed files receiving thread, specifically, are carried out with embodiments discussed below detailed
Thin description.
In a preferred embodiment of an embodiment of the present invention, after above-mentioned steps 503, can also include:
Step A1: it after the storage server receives the file fragmentation data, opens a listed files and connects
Take-up journey.
In embodiments of the present invention, listed files receiving thread refers to the line for being handled file fragmentation data
Journey.
After storage server receives file fragmentation data, a listed files of storage server side can be opened
Receiving thread, and execute step A2.
Step A2: the receiving time interval of the adjacent data of file fragmentation twice is obtained by the listed files receiving thread.
Receiving time interval refers to that storage server receives the time interval of file fragmentation data twice, for example, adjacent two
The receiving time of secondary file fragmentation data is respectively as follows: 2019-4-15,10:22 and 2019-4-15,10:25, then receiving time
Between be divided into 3min.
It is to be appreciated that above-mentioned example is merely to more fully understand the technical solution of the embodiment of the present invention and showing for enumerating
Example, not as the sole limitation to the embodiment of the present invention.
After file opening list reception thread, adjacent file fragmentation twice can be obtained by listed files receiving thread
The receiving time interval of data, and execute step A3.
Step A3: judge whether the receiving time interval is greater than prefixed time interval.
Prefixed time interval refers to by business personnel between the pre-set time interval in storage server side, preset time
Every that can be that 5s, 8s, 1min etc. specifically can be depending on business demands, the embodiment of the present invention limit this
System.
After getting receiving time interval, receiving time interval and prefixed time interval can be compared, with
The size relation both determined, for example, be divided into 4s between receiving time, and when prefixed time interval is 5s, then between receiving time
Every less than prefixed time interval；And 8s is divided between receiving time, when prefixed time interval is 6s, then receiving time interval is greater than
Prefixed time interval.
It is to be appreciated that above-mentioned example is merely to more fully understand the technical solution of the embodiment of the present invention and showing for enumerating
Example, not as the sole limitation to the embodiment of the present invention.
After judging whether receiving time interval is greater than prefixed time interval, step A4 is executed.
Step A4: in the case where the receiving time interval is greater than the prefixed time interval, the file column are exited
Table receiving thread.
In the case where receiving time interval is greater than prefixed time interval, then it represents that adjacent storage server is received adjacent
File fragmentation data are not that same file transmission request is sent twice, for the first time may be screenshot picture resource, and the
Secondary may be video resource, and cannot be mixed the two storage, so needing to exit current file list thread, i.e., no longer
To storing for the file fragmentation data of receipt of subsequent.
It certainly, then can be to the file fragmentation in grouping in the case where receiving time interval is less than prefixed time interval
Whether data, which reach setting fragment numerical value, is judged, specifically, is described in detail with embodiments discussed below.
In another preferred embodiment of the embodiment of the present invention, after above-mentioned steps A3, can also include:
Step B1: in the case where the receiving time interval is less than or equal to the prefixed time interval, the file column
Table receiving thread judges whether the file fragmentation data in current group reach setting fragment numerical value.
In embodiments of the present invention, grouping refers to the pre-set group for saving file fragmentation data.Set fragment numerical value
Refer to the numerical value of pre-set cache file fragment data in each grouping, for example, guarantor can be preset in a grouping
Deposit 5 file fragmentation data or 8 file fragmentation data etc..
The quantity of grouping is the file money uploaded according to the needs carried in the file transmission request sent depending on networked terminals
What the quantity in source determined, and setting fragment numerical value can be depending on business demand, and for the quantity and setting of grouping
Fragment numerical value can according to the actual situation depending on, the embodiments of the present invention are not limited thereto.
In the case where receiving time interval is less than setting time interval, can be determined by listed files receiving thread current
Whether the file fragmentation data in grouping reach setting fragment numerical value, and execute step B2.
Step B2: in the case that the file fragmentation data in the current group reach setting fragment numerical value, Xiang Suoshu
It sends depending on networked terminals without packet loss confirmation message, and executes the storage server and the file fragmentation data are parsed,
To obtain the file resource in the file fragmentation data, and the step of file resource is stored in local disk.
File fragmentation data in current group reach setting fragment numerical value in the case where, can from storage server to
It sends depending on networked terminals without packet loss confirmation message, i.e., currently received file fragmentation data are complete data, in turn, by storing
Server parses the file fragmentation data in current group, to obtain the file resource in file fragmentation data, and will
File resource is stored in local disk.
And the file fragmentation data in current group are not up in the case where setting fragment numerical value, then need to network to view
Terminal is sent packet loss confirmation message and is specifically described in detail with embodiments discussed below.
In another preferred embodiment of the embodiment of the present invention, after above-mentioned steps B1, further includes:
Step C1: described in the case that the file fragmentation data in the current group not up to set fragment numerical value
Listed files receiving thread sends packet loss confirmation message to the view networked terminals；It include to lose in the packet loss confirmation message
Fragment serial number.
In embodiments of the present invention, packet loss confirmation message refers to that the file fragmentation data in current group are imperfect, lacks
The message of partial document fragment data.
It loses fragment serial number and refers to the corresponding serial number of file fragmentation data lacked in current group, for example, grouping includes
Three file fragmentation data, corresponding serial number are respectively 1,2,3, and in received file fragmentation data, it only include 1 in grouping
With 2, then the serial number for the file fragmentation data lost is 3.
It is to be appreciated that above-mentioned example is merely to more fully understand the technical solution of the embodiment of the present invention and showing for enumerating
Example, not as the sole limitation to the embodiment of the present invention.
In the case that file fragmentation data in current group not up to set fragment numerical value, then received by listed files
Thread sends packet loss confirmation message to view networked terminals, and executes step C2.
Step C2: the view networked terminals obtain and the loss fragment sequence according to the loss fragment serial number from local
Number corresponding file resource.
Depending on networked terminals after receiving packet loss confirmation message, packet loss confirmation message can be parsed, to obtain
Loss fragment serial number in packet loss confirmation message.
In turn, text corresponding with fragment serial number is lost can be obtained from local according to fragment serial number is lost depending on networked terminals
Part resource, and execute step C3.
Step C3: described be integrated into the corresponding file resource of the loss fragment serial number depending on networked terminals retransmits file point
Sheet data.
After getting file resource corresponding with fragment serial number is lost depending on networked terminals, the file of acquisition can be provided
Source carries out integration processing, to obtain retransmitting file fragmentation data, and then executes step C4.
Step C4: the re-transmission file fragmentation data are exchanged mode according to business card and are transmitted to institute by the view networked terminals
State storage server.
After obtaining retransmitting file fragmentation data depending on networked terminals, it is mutual according to business card can will to retransmit file fragmentation data
The mode of changing is transmitted to storage server.
Certainly, in embodiments of the present invention, disappear to depending on networked terminals transmission without packet loss confirmation in listed files receiving thread
After breath, it can also judge whether the file fragmentation data in all groupings are transmitted, specifically, with following preferred implementations
Example is described in detail.
In another preferred embodiment of the embodiment of the present invention, after above-mentioned steps B2, further includes:
Step D1: the listed files receiving thread judges whether the file fragmentation data in all groupings transfer
At.
In embodiments of the present invention, all groupings refer to that pre-set this file that corresponds in storage server side transmits
And the grouping being arranged.
After sending from listed files thread to view networked terminals without packet loss confirmation message, it can be received by listed files
Thread judges whether the file fragmentation data in all groupings are transmitted, i.e., whether the file fragmentation data in all groupings
Reach setting fragment numerical value.
Step D2: if so, exiting the listed files transmission thread.
In the case that file fragmentation data in all groupings reach setting fragment numerical value, listed files can be exited
Thread is transmitted, that is, completes this file transmission flow.
Step D3: if it is not, then executing described by the adjacent file fragmentation data twice of listed files receiving thread acquisition
Receiving time interval the step of.
And there are the file fragmentation data in one or more packets to be not up to the feelings for setting fragment numerical value in all groupings
Under condition, the receiving time interval of the adjacent data of file fragmentation twice can be obtained again by listed files receiving thread, i.e., again
Execute the above process.
The embodiment of the present invention obtains terminal current image total number resource by storage server in real time, and passes through picture text
Part list protocol reaches the mesh for regarding and storing terminal screenshot picture above networking side storage server to obtain the real-time screenshotss of terminal
's.
File resource acquisition methods provided in an embodiment of the present invention are received by storage server by sending depending on networked terminals
File transmit request, storage server sends the corresponding name of storage server according to file transmission request, to view networked terminals
Piece information exchanges mode according to business card and file fragmentation data is transmitted to storage server depending on networked terminals according to card information,
Storage server parses file fragmentation data, to obtain the file resource in file fragmentation data, and by file resource
It is stored in local disk.The embodiment of the present invention obtains terminal current image total number resource by storage server in real time, and passes through
Picture file list protocol reaches to obtain the real-time screenshotss of terminal and regards storage terminal screenshot picture above networking side storage server
Purpose.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
With reference to Fig. 6, a kind of file resource for showing the embodiment of the present invention obtains system, and the system is applied to view connection
Net, wherein include view networked terminals and storage server in the view networking；The apparatus may include following modules:
File transmits request receiving module 610, receives for the storage server by the view networked terminals transmission
File transmission request；Card information sending module 620 is transmitted according to the file for the storage server and is requested, to institute
It states view networked terminals and sends the corresponding card information of the storage server；File fragmentation data transmission module 630, for described
Depending on networked terminals according to the card information, mode is exchanged according to business card, file fragmentation data are transmitted to the storage service
Device；File resource preserving module 640 parses the file fragmentation data for the storage server, to obtain
The file resource in file fragmentation data is stated, and the file resource is stored in local disk.
Preferably, further includes: receiving thread opening module, for receiving the file fragmentation in the storage server
After data, a listed files receiving thread is opened；Time interval obtains module, for by the listed files receiving thread
Obtain the receiving time interval of the adjacent data of file fragmentation twice；Time interval judgment module, for judging the receiving time
Whether interval is greater than prefixed time interval；Receiving thread exits module, described default for being greater than at the receiving time interval
In the case where time interval, the listed files receiving thread is exited.
Preferably, further includes: fragment data judgment module, it is described default for being less than or equal at the receiving time interval
In the case where time interval, the listed files receiving thread judges whether the file fragmentation data in current group reach setting
Fragment numerical value；Without packet loss message transmission module, reach setting fragment number for the file fragmentation data in the current group
In the case where value, send to the view networked terminals without packet loss confirmation message, and execute the storage server to the file
Fragment data is parsed, to obtain the file resource, and the step of file resource is stored in local disk.
Preferably, further includes: the case where file fragmentation data in the current group not up to set fragment numerical value
Under, the listed files receiving thread sends packet loss confirmation message to the view networked terminals；It is wrapped in the packet loss confirmation message
Contain loss fragment serial number；The view networked terminals obtain and the loss fragment according to the loss fragment serial number from local
The corresponding file resource of serial number；It is described that the corresponding file resource of the loss fragment serial number is integrated into re-transmission text depending on networked terminals
Part fragment data；The re-transmission file fragmentation data are exchanged mode according to business card and are transmitted to described deposit by the view networked terminals
Store up server.
Preferably, further includes: file fragmentation data judgment module judges all points for the listed files receiving thread
Whether the file fragmentation data in group are transmitted；Second receiving thread exits module, for the file in all groupings
In the case that fragment data is transmitted, the listed files receiving thread is exited；Time interval obtains execution module, is used for
In the case that file fragmentation data in one or more packets are transmitted, execute the time interval and obtain module.
Preferably, the file resource is screenshot picture resource.
File resource provided in an embodiment of the present invention obtains system, is received by storage server by sending depending on networked terminals
File transmit request, storage server sends the corresponding name of storage server according to file transmission request, to view networked terminals
Piece information exchanges mode according to business card and file fragmentation data is transmitted to storage server depending on networked terminals according to card information,
Storage server parses file fragmentation data, to obtain the file resource in file fragmentation data, and by file resource
It is stored in local disk.The embodiment of the present invention obtains terminal current image total number resource by storage server in real time, and passes through
Picture file list protocol reaches to obtain the real-time screenshotss of terminal and regards storage terminal screenshot picture above networking side storage server
Purpose.
For file resource obtains system embodiment, due to itself and the basic phase of file resource acquisition methods embodiment
Seemingly, so being described relatively simple, related place illustrates referring to the part of file resource acquisition methods embodiment.
The embodiment of the invention also provides a kind of devices, comprising:
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors
When, so that described device executes one or more file resource acquisition methods as described in the embodiments of the present invention.
The embodiment of the invention also provides the computer programs of a kind of computer readable storage medium, storage to handle
Device executes file resource acquisition methods as described in the embodiments of the present invention.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
System is obtained to a kind of file resource acquisition methods provided by the present invention and a kind of file resource above to carry out
It is discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of file resource acquisition methods, which is characterized in that the method is applied to view networking, wherein in the view networking
Including view networked terminals and storage server；The described method includes:
The storage server, which is received, transmits request by the file that the view networked terminals are sent；
The storage server is transmitted according to the file requests, and it is corresponding to send the storage server to the view networked terminals
Card information；
The view networked terminals exchange mode according to business card and file fragmentation data are transmitted to described deposit according to the card information
Store up server；
The storage server parses the file fragmentation data, to obtain the money of the file in the file fragmentation data
Source, and the file resource is stored in local disk.
2. the method according to claim 1, wherein being pressed in the view networked terminals according to the card information
It is exchanged after the step of fragment data is transmitted to the storage server by mode according to business card, further includes:
After the storage server receives the file fragmentation data, a listed files receiving thread is opened；
The receiving time interval of the adjacent data of file fragmentation twice is obtained by the listed files receiving thread；
Judge whether the receiving time interval is greater than prefixed time interval；
In the case where the receiving time interval is greater than the prefixed time interval, the listed files receiving thread is exited.
3. according to the method described in claim 2, it is characterized in that, to judge whether the receiving time interval is greater than pre- described
If after the step of time interval, further includes:
In the case where the receiving time interval is less than or equal to the prefixed time interval, the listed files receiving thread is sentenced
Whether the file fragmentation data in disconnected current group reach setting fragment numerical value；
In the case that file fragmentation data in the current group reach setting fragment numerical value, sent out to the view networked terminals
No packet loss confirmation message is sent, and executes the storage server and the file fragmentation data is parsed, to obtain the text
File resource in part fragment data, and the step of file resource is stored in local disk.
4. according to the method described in claim 3, it is characterized in that, judging in current group in the listed files receiving thread
File fragmentation data whether reach setting fragment numerical value the step of after, further includes:
In the case that file fragmentation data in the current group not up to set fragment numerical value, the listed files is received
Thread sends packet loss confirmation message to the view networked terminals；It include to lose fragment serial number in the packet loss confirmation message；
The view networked terminals obtain file corresponding with the loss fragment serial number according to the loss fragment serial number, from local
Resource；
Described be integrated into the corresponding file resource of the loss fragment serial number depending on networked terminals retransmits file fragmentation data；
The re-transmission file fragmentation data are exchanged mode according to business card and are transmitted to the storage service by the view networked terminals
Device.
5. according to the method described in claim 3, it is characterized in that, confirming in described sent to the view networked terminals without packet loss
After the step of message, further includes:
The listed files receiving thread judges whether the file fragmentation data in all groupings are transmitted；
If so, exiting the listed files transmission thread；
If it is not, between then executing the receiving time for obtaining the adjacent data of file fragmentation twice by the listed files receiving thread
Every the step of.
6. the method according to claim 1, wherein the file resource is screenshot picture resource.
7. a kind of file resource obtains system, which is characterized in that the system is applied to view networking, wherein in the view networking
Including view networked terminals and storage server；The system comprises:
File transmits request receiving module, receives for the storage server and is transmitted by the file that the view networked terminals are sent
Request；
Card information sending module is transmitted according to the file for the storage server and is requested, to the view networked terminals
Send the corresponding card information of the storage server；
File fragmentation data transmission module exchanges mode according to business card for the view networked terminals according to the card information
File fragmentation data are transmitted to the storage server；
File resource preserving module parses the file fragmentation data for the storage server, described to obtain
File resource in file fragmentation data, and the file resource is stored in local disk.
8. system according to claim 7, which is characterized in that further include:
Receiving thread opening module, for opening one after the storage server receives the file fragmentation data
Listed files receiving thread；
Time interval obtains module, for obtaining the reception of the adjacent data of file fragmentation twice by the listed files receiving thread
Time interval；
Time interval judgment module, for judging whether the receiving time interval is greater than prefixed time interval；
Receiving thread exits module, for exiting in the case where the receiving time interval is greater than the prefixed time interval
The listed files receiving thread.
9. a kind of device characterized by comprising
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, when being executed by one or more of processors, are made
Obtain the file resource acquisition methods for the one or more that described device is executed as described in claim 1 to 6.
10. a kind of computer readable storage medium, which is characterized in that its computer program stored executes processor as weighed
Benefit requires 1 to 6 described in any item file resource acquisition methods.
Priority Applications (1)
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| CN201910319105.6A CN110062295A (en) | 2019-04-19 | 2019-04-19 | A kind of file resource acquisition methods and system |
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| CN201910319105.6A CN110062295A (en) | 2019-04-19 | 2019-04-19 | A kind of file resource acquisition methods and system |
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Family
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| CN201910319105.6A Pending CN110062295A (en) | 2019-04-19 | 2019-04-19 | A kind of file resource acquisition methods and system |
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Application publication date: 20190726 |