CN101051930A - Positioning method and system for service end - Google Patents
Positioning method and system for service end Download PDFInfo
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- CN101051930A CN101051930A CN 200610072068 CN200610072068A CN101051930A CN 101051930 A CN101051930 A CN 101051930A CN 200610072068 CN200610072068 CN 200610072068 CN 200610072068 A CN200610072068 A CN 200610072068A CN 101051930 A CN101051930 A CN 101051930A
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Abstract
Using broadcasting, server end sends positioning information to named service object so that server end is able to register positioning information on the named service object under precondition without need of configuring management function. Using broadcasting, client end sends positioning request to named service object so that client end is able to obtain needed positioning information of server from the named service object under precondition without need of configuring management function. The invention realizes simplified procedure for client end to obtain positioning information of remote service object, reduces difficulty for integrating module, and raises performance of easy to use.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of localization method and system of service end.
Background technology
In distributed system, all need certain service object of remote access usually, how to obtain the positional information of remote service object, and to be established to the remote service object be that communicating to connect of service end is a basic technical problem.
At present, mainly contain two kinds of methods of obtaining the remote service object location information.
Method one, in the software architecture of general client/server, client all needs to utilize configuration file or program start parameter or the special next explicit positional information that service end is set of configuration interface that oneself defines, so that set up being connected of client and service end.
In method one, each client all needs to increase the configuration management function of service end positional information, the configuration file that needs use the service end positional information, and, after the position change of service end, each client needs to upgrade synchronously the configuration information of client, makes client obtain the implementation procedure complexity of remote service object location information.If one or more clients are that independently assembly and a plurality of client need be integrated in the bigger system, system after integrated will become a new client, this new client still needs to realize the configuration management function of the service end positional information of this client, thereby increased the integrated difficulty of assembly, reduced the ease for use of assembly.
Method two, the name service by CORBA (Common Object Request Broker Architecture, Common Object Request Broker Architecture) make client obtain the positional information of remote service object.The specific implementation method is: have one and independently name the ISP in whole system, after other all service objects start, initiatively independently name the name and the locating information thereof of registration oneself among the ISP to this, all clients are also visited this and are independently named the ISP, and inquire about by name, obtain service object's positional information, thereby set up being connected of client and service end.
In method two, all clients and service object still need to dispose the configuration management function of name ISP positional information, so, still exist in the method two and method one same client to obtain the integrated difficulty of implementation procedure complexity, assembly of remote service object location information big, shortcomings such as assembly ease for use difference.
Summary of the invention
The objective of the invention is to, a kind of localization method and system of service end are provided, service end sends locating information, client by utilizing broadcasting to naming the service object to send Location Request by utilization broadcasting to the name service object, making does not need configuration management function in client and the service end, obtain the implementation procedure of remote service object location information, reduced the integrated difficulty of assembly, improved the purpose of assembly ease for use thereby simplified client.
For achieving the above object, the localization method of a kind of service end provided by the invention comprises:
A, service end are broadcasted its locating information;
B, name service object monitor the also locating information of stores service end broadcast transmission;
C, client when needing the locating information of service end, broadcast transmission service end Location Request;
D, name be after the service object listens to Location Request, according to this Location Request the locating information of respective service end is sent to described client;
E, described client are carried out the localization process of service end according to its locating information that receives.
Described step a comprises:
Service end adopts the broadcasting packet of User Datagram Protoco (UDP) to broadcast its locating information.
Described locating information comprises: service end Name ﹠ Location information.
Described step b comprises:
The name service object obtains the locating information of service end broadcast transmission by one or more ports of monitoring appointment, and stores this locating information.
Be provided with service end registration authority information among the name service object, and described step b comprises:
When the locating information that the name service object gets access in definite its monitoring meets the registration authority information of its storage, store this locating information.
Described method also comprises:
The service object is after receiving the locating information of service end in name, sends response message to service end;
Service end after receiving response message, its locating information of going off the air.
Be provided with the authority information that client is obtained the service end locating information among the described name service object, and described steps d comprises:
When the name service object listens to Location Request and determines that according to described authority information this client has the authority of obtaining respective service end locating information, the locating information of respective service end is sent to this client according to Location Request.
The navigation system of a kind of service end provided by the invention comprises: name service object, service end and client;
Be provided with among the described name service object and monitor module, memory module and enquiry module, described service end is provided with broadcast module, and described client is provided with request module and locating module;
Broadcast module is used for: the locating information of broadcast service end;
The monitoring module is used for: monitor the locating information of broadcast module broadcast transmission, and the locating information that listens to is stored in the memory module;
Request module is used for: when client needs the locating information of service end, and broadcast transmission service end Location Request;
Enquiry module is used for: after the Location Request that listens to the request module broadcast transmission, inquire about the locating information of respective service end according to Location Request from memory module, and send to locating module;
Locating module is used for: receive the locating information that enquiry module sends, and carry out the localization process of service end.
Also be provided with among the described name service object: registration authority memory module;
Registration authority memory module is used for: stores service end registration authority information;
Monitor module when the locating information that definite its monitoring gets access to meets the registration authority information of storing in the registration claim memory module, this locating information that listens to is stored in the memory module.
Also be provided with among the described name service object: client authority memory module;
Client authority memory module is used for: the storage client is obtained the authority information of service end locating information;
Enquiry module listen to Location Request and according to client authority memory module in canned data when determining that this client has the authority of obtaining respective service end locating information, according to the locating information of Location Request inquiry respective service end, and send to locating module.
Description by technique scheme as can be known, service end sends locating information by utilizing broadcasting to the name service object, makes service end under the prerequisite that does not need configuration management function, can register its locating information to the name service object; Client sends Location Request by utilizing broadcasting to the name service object, makes client under the prerequisite that does not need configuration management function, can obtain the service end locating information that it needs from the name service object; The present invention is by being provided with the registration authority information, the name service object can be controlled the registration process of service end, the present invention obtains the authority information of service end locating information by client is set, the name service object can be controlled the process that client is obtained locating information, setting by above-mentioned two authority informations, name service object among the present invention can be open to some client with the locating information of some service end, guaranteed remote access fail safe; Thereby realized simplifying the purpose that client is obtained the implementation procedure of remote service object location information, the integrated difficulty of reduction assembly, improved the assembly ease for use by technical scheme provided by the invention.
Description of drawings
Fig. 1 is a name service object executable operations flow chart in the service end position fixing process of the embodiment of the invention;
Fig. 2 is a service end executable operations flow chart in the service end position fixing process of the embodiment of the invention;
Fig. 3 is a client executing operational flowchart in the service end position fixing process of the embodiment of the invention.
Embodiment
In a distributed architecture, if client and service end are without any need for the configuration management function of form, if promptly do not need the user of service to pass through written document or operation GUI (Graphical UserInterface, graphic user interface) interface is provided with the positional information of service end, client just automatically the positioning service supplier be service end, and be established to ISP's connection, then can simplify the process of client location service end greatly, effectively improve the ease for use of client.
The present invention adopts similar CORBA (Common Object Request Broker Architecture, Common Object Request Broker Architecture) mechanism of name service, but, be with the difference of art methods two: service end of the present invention adopts the mode of broadcasting to send its locating information, and the name service object is by monitoring the locating information that obtains service end; And the mode of customer end adopted broadcasting of the present invention sends the service end Location Request, and the name service object obtains the Location Request that client sends by monitoring, and corresponding service end locating information is sent to client.Like this, service end does not need to dispose any configuration management function, just can be located message transmission to naming the service object, and client does not need to dispose any configuration management function yet, just can inquire the service end locating information that it needs from the name service object, thereby, realized the function of client location service end easily and efficiently.
Below technical scheme provided by the invention is described in detail.
The present invention at first needs to start the name service object, the service object is after startup in this name, need to monitor one or more UDP (User Datagram Protoco (UDP)) port of appointment, with the locating information of acquisition service end broadcast transmission and the service end Location Request of client broadcast transmission.The broadcasting why the name service object needs to monitor a plurality of udp ports, its purpose mainly is for by adopt the mode of one or more udp ports of hard coded number in client, service end and command service, eliminate the dependence of client, service end to the configuration management file, and resource contention appears in the program that reduces with other use udp ports, monitors the broadcasting of a plurality of udp ports and just played the function that multiport can back up mutually.
After any one service end among the present invention starts, need broadcast the name information and the positional information of this service end repeatedly to one or more udp ports of appointment.The broadcasting repeatedly here can be for according to the predetermined time interval timed sending, also can be for sending pre-determined number etc.Service end starts the process of back broadcast transmission locating information, can be regarded as the process of service end to name service object registration.Service end among the present invention does not need to carry out any configuration management function when adopting broadcast transmission, service end also can adopt multicast mode to send its locating information, just when adopting the multicast mode to send, need carry out the multicast address configuration in service end.
The name service object is by the monitoring to one or more udp ports, after having obtained the locating information of service end broadcast transmission, preserve this locating information, and, accepted the locating information of service end broadcast transmission with expression name service object to response message of this service end loopback.The locating information that the name service object can adopt multiple storage mode to come the stores service end is as temporary cache, persistent storage etc.For avoiding naming the service object when operation such as restarting, lose the locating information that the service end broadcast transmission is come, the name service object can adopt the mode of persistent storage to preserve the service end locating information, like this, the name service object restart wait to operate after, these service end locating information can not lost, thereby can not influence the query manipulation of any client to the service end locating information.
Name service object among the present invention can control the locating information of its storage, to guarantee having only some service end that the registration authority is arranged in the name service object, to register its locating information, the specific implementation process is: store service end registration authority information among the name service object, the service object is when receiving the service end locating information in name, the service end registration authority information of the content in the service end locating information and its storage is compared, according to comparative result, when determining to allow this service end registration, store the locating information of this service end; When determining to forbid this service end registration, do not store the locating information of this service end, the name service object can abandon the locating information of this service end.
The service end registration authority information that name is stored among the service object can be the name information that allows/forbid the service end registered, also the positional information such as the IP address information of the service end that allows/forbid to register can be, the name information and the positional information that allow/forbid the service end registered can also be.Like this, the name service object can only store the locating information that some service end is sent, thereby has guaranteed the security control to the service end registration.
In the time need limiting the registration of service end, the present invention also only need carry out the configuration of service end registration authority to the name service object, does not need to carry out any layoutprocedure at the service end place.
Service end can know that the locating information of its transmission is successfully received by the name service object after receiving the response message that sends of name service object, at this moment, service end can stop the broadcast transmission process of its locating information.
When the registration to service end limits, when if the name service object determines that certain service end does not need to store the locating information of sending because of not registering authority, can this locating information not carried out any processing, as directly this locating information being abandoned, and do not return any response message to this service end; The name service object also can return to this service end and carry the response message of not registering authority information.
Any one client is when the locating information of certain service end of needs, and one or more udp ports of appointment are broadcasted Location Request repeatedly in the name service object, and the information in the Location Request here comprises: the service end name information.The service end name information here is the identification information of service end just, and the service end name information can service end of unique identification, and the service end name information can be the digital code of service end, alphanumeric codes etc.Client can send the service end Location Request when needs connect with service end, in the time of can needing to visit certain service end after starting as client, send the service end Location Request.The broadcasting repeatedly here can be for according to the predetermined time interval timed sending, also can be for sending pre-determined number etc.Client among the present invention is when adopting the broadcast transmission Location Request, do not need to carry out any type of configuration management function, client also can adopt multicast mode to send its locating information, just when adopting the multicast mode to send, need carry out the multicast address configuration in client.
The name service object is after receiving the next Location Request of client broadcast transmission, in the locating information of its storage, search the positional information of this service end according to the service end name information in the Location Request, if find the positional information of this service end, then name the service object that the locating information of this service end is sent to client, here, the name service object can send to client with the positional information in the locating information of this service end, also service end name information and the positional information in the locating information of this service end can be sent to client; If the name service object does not find the positional information of this service end, the name service object can not carry out any response to this Location Request and handle.
Name service object among the present invention can control client query service end locating information, to guarantee having only some client that search access right is arranged can obtain the locating information of some service end from the name service object, promptly the locating information of some service end is only open as the client with some IP address to some client.The specific implementation process is: store the authority information that client is obtained the service end locating information among the name service object, the service object is when receiving the Location Request of client in name, the authority information that obtains the service end locating information of the content in the Location Request and its storage is compared, according to comparative result, when determining to allow the locating information of this client query service end, in the locating information of its storage, search the positional information of this service end according to the service end name information in the Location Request, if find the positional information of this service end, then name the service object that the locating information of this service end is sent to client; If the name service object does not find the positional information of this service end, the name service object can not carry out any response to this Location Request and handle.According to comparative result, when determining to forbid the locating information of this client query service end, the name service object is not according to the locating information of this Location Request inquiry service end, the name service object can abandon the Location Request of this client, also can return corresponding response message, make client can learn that it does not obtain the authority of service end locating information to client.
The authority information that client that name is stored among the service object is obtained the service end locating information can be the address information of client, also can be the corresponding relation of the address information/name information of service end and the address information of client.Like this, the name service object can only be sent to the client of authority with the locating information of service end, thereby has guaranteed client is obtained the security control of service end locating information.
When needs obtained the service end locating information and limit client, the present invention also only need carry out the authority configuration that client is obtained the service end locating information to the name service object, does not need to carry out any layoutprocedure at the client place.
Client is after receiving the name service response message that carries the service end locating information, obtain the locating information of its requested service end, at this moment, client should stop the broadcast transmission of service end Location Request, client can utilize the locating information of its acquisition set up its with service end between be connected.
Below in conjunction with accompanying drawing technical scheme provided by the invention is elaborated.
In service end location process of the present invention, name service object's inter-process operation as shown in Figure 1.
Among Fig. 1, in step 100, the name service object starts the name service.
To step 110, name the service object monitor one or more udp ports of appointment, when listening to message, to step 120.
In step 120, the name service object judges whether its message that listens to is the locating information that service end is sent, whether be the registration message that service end is sent promptly, if the locating information that service end is sent, to step 130, preserve the locating information that this service end is sent, promptly preserve service end name information and service end address information.
To step 140, the name service object sends to this service end and carries the response message that succeeds in registration, the name service object finishes the processing procedure of this message that listens to, and to step 120, the name service object continues its message that listens to is carried out judgment processing.
In step 120, the name service object judge its message that listens to be not service end send locating information the time, to step 150, the name service object continues to judge whether its this message that listens to is the Location Request that client is sent, and the positioning request information if not client is sent arrives step 151, abandon this message that it listens to, then, to step 120, the name service object continues its message that listens to is carried out judgment processing.
In step 150, be the Location Request that client is sent if the name service object judges its this message that listens to, to step 160, the name service object obtains the address information of client from Location Request, to carry out scope check.
To step 170, the name service object judges whether to allow this client to insert its requested service end according to the authority information of its storage, if do not allow this client to insert its requested service end, to step 151, the name service object abandons this message that it listens to, then, to step 120, the name service object continues its message that listens to is carried out judgment processing.
In step 170, if judging, the name service object allow this client to insert its requested service end, to step 180, the positional information of the service end of client-requested is carried in the response message, be recycled to client.To step 120, the name service object continues its message that listens to is carried out judgment processing.
In service end location process of the present invention, the inter-process operation after service end starts as shown in Figure 2.
Among Fig. 2, in step 200, service end starts.
To step 210, service end is broadcasted its locating information, as passing through its name information of UDP message fixed time broadcast and address information.
To step 220, service end judges whether to succeed in registration in the name service object, and promptly service end judges whether to receive the response message that the name service object sends, if received this response message, to step 230, service end stops to send locating information, and this registration process finishes.
In step 220, if service end does not receive the response message that the name service object sends, to step 210, service end continues its locating information of broadcasting.
In service end location process of the present invention, the inter-process of client is operated as shown in Figure 3.
Among Fig. 3, in step 300, client terminal start-up and need connecting with service end is to step 310.Perhaps in step 301, client is interrupted with being connected of service end and client need connect once more with service end, to step 310.
To step 320, client judges whether to receive the response message that the name service object sends, and does not receive the response message that the name service object sends if judge, and then arrives step 310, and client continues broadcast transmission service end Location Request.
In step 320, if judging, client receives the response message that the name service object sends, to step 330, client obtains the locating information of requested service end from the response message that it receives, and utilizes this locating information and this service end to connect.
To step 340, client judges whether successfully to connect with service end, if successfully connect, to step 350, this service end position fixing process of client finishes.
In step 340, if judging it, client successfully do not connect with service end, to step 310, client continues broadcast transmission service end Location Request.
The navigation system of service end provided by the invention, comprise: name service object, service end and client, be provided with among the name service object and monitor module, memory module and enquiry module, service end is provided with broadcast module, and client is provided with request module and locating module.
Broadcast module is mainly used in the locating information of broadcast service end repeatedly, sends the locating information of service end to one or more udp ports of appointment as broadcast module.Broadcast module stops to send the locating information of service end when receiving the response message that the name service object sends.The locating information here, broadcast like the description in the said method repeatedly.
Monitor module and be mainly used in the locating information of monitoring the broadcast module broadcast transmission, and the locating information that listens to is stored in the memory module.
If name the service object need control the locating information of its storage, also be provided with registration authority memory module among the name service object of the present invention.
Registration authority memory module is mainly used in: stores service end registration authority information.The registration authority information here is concrete as the description in the above-mentioned method.
If be provided with registration authority memory module among the name service object, then monitor module after listening to locating information, the service end registration authority information of the content in the service end locating information and its storage need be compared, according to comparative result, when determine allowing this service end registration, the locating information of this service end is stored in the memory module; When determining to forbid this service end registration, the locating information with this service end is not stored in the memory module, monitors the locating information that module can abandon this service end.
Request module is mainly used in: when client needs the locating information of service end, and broadcast transmission service end Location Request.Client can after the startup or its with service end between be connected disconnect after, broadcast transmission service end Location Request repeatedly.The Location Request here, broadcast like the description in the said method repeatedly.
Enquiry module is mainly used in: after the Location Request that listens to the request module broadcast transmission, from memory module, inquire about the locating information of respective service end according to Location Request, and the locating information that inquires sent to locating module, when enquiry module does not inquire the locating information of respond services end, can not carry out any processing, also can send and carry the response message of inquiry less than information to client.
If the name service object need obtain the service end address information to client and control, also be provided with client authority memory module among the name service object of the present invention.
Client authority memory module is mainly used in: the storage client is obtained the authority information of service end locating information, and the client is here obtained the authority information of service end locating information specifically as the description in the above-mentioned method.
If be provided with client authority memory module among the name service object, then enquiry module is when receiving the Location Request of client, the authority information that obtains the service end locating information of content in the Location Request and the storage of client authority memory module is compared, according to comparative result, when determining to allow the locating information of this client query service end, search the positional information of this service end in the locating information of in memory module, storing according to the service end name information in the Location Request, if find the positional information of this service end, then the locating information with this service end sends to client; If do not find the positional information of this service end, then this Location Request is not carried out any response and handle.When determining not allow the locating information of this client query service end, enquiry module can abandon the Location Request of this client, also can return corresponding response message to client, makes client can learn that it does not obtain the authority of service end locating information.Concrete as the description in the above-mentioned method.
Locating module is mainly used in: receive the locating information that enquiry module sends, and carry out the localization process of service end, as setting up with being connected of service end etc.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (10)
1, a kind of localization method of service end is characterized in that, described method comprises step:
A, service end are broadcasted its locating information;
B, name service object monitor the also locating information of stores service end broadcast transmission;
C, client when needing the locating information of service end, broadcast transmission service end Location Request;
D, name be after the service object listens to Location Request, according to this Location Request the locating information of respective service end is sent to described client;
E, described client are carried out the localization process of service end according to its locating information that receives.
2, the localization method of a kind of service end as claimed in claim 1 is characterized in that, described step a comprises:
Service end adopts the broadcasting packet of User Datagram Protoco (UDP) to broadcast its locating information.
3, the localization method of a kind of service end as claimed in claim 1 is characterized in that, described locating information comprises: service end Name ﹠ Location information.
4, the localization method of a kind of service end as claimed in claim 1 is characterized in that, described step b comprises:
The name service object obtains the locating information of service end broadcast transmission by one or more ports of monitoring appointment, and stores this locating information.
5, as the localization method of claim 1 or 2 or 3 or 4 described a kind of service ends, it is characterized in that, be provided with service end registration authority information among the name service object, and described step b comprise:
When the locating information that the name service object gets access in definite its monitoring meets the registration authority information of its storage, store this locating information.
As the localization method of claim 1 or 2 or 3 or 4 described a kind of service ends, it is characterized in that 6, described method also comprises:
The service object is after receiving the locating information of service end in name, sends response message to service end;
Service end after receiving response message, its locating information of going off the air.
7, as the localization method of claim 1 or 2 or 3 or 4 described a kind of service ends, it is characterized in that, be provided with the authority information that client is obtained the service end locating information among the described name service object, and described steps d comprise:
When the name service object listens to Location Request and determines that according to described authority information this client has the authority of obtaining respective service end locating information, the locating information of respective service end is sent to this client according to Location Request.
8, a kind of navigation system of service end comprises: name service object, service end and client is characterized in that:
Be provided with among the described name service object and monitor module, memory module and enquiry module, described service end is provided with broadcast module, and described client is provided with request module and locating module;
Broadcast module is used for: the locating information of broadcast service end;
The monitoring module is used for: monitor the locating information of broadcast module broadcast transmission, and the locating information that listens to is stored in the memory module;
Request module is used for: when client needs the locating information of service end, and broadcast transmission service end Location Request;
Enquiry module is used for: after the Location Request that listens to the request module broadcast transmission, inquire about the locating information of respective service end according to Location Request from memory module, and send to locating module;
Locating module is used for: receive the locating information that enquiry module sends, and carry out the localization process of service end.
9, the navigation system of a kind of service end as claimed in claim 8 is characterized in that, also is provided with among the described name service object: registration authority memory module;
Registration authority memory module is used for: stores service end registration authority information;
Monitor module when the locating information that definite its monitoring gets access to meets the registration authority information of storing in the registration claim memory module, this locating information that listens to is stored in the memory module.
10, a kind of navigation system of service end as claimed in claim 8 or 9 is characterized in that, also is provided with among the described name service object: client authority memory module;
Client authority memory module is used for: the storage client is obtained the authority information of service end locating information;
Enquiry module listen to Location Request and according to client authority memory module in canned data when determining that this client has the authority of obtaining respective service end locating information, according to the locating information of Location Request inquiry respective service end, and send to locating module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610072068 CN101051930A (en) | 2006-04-06 | 2006-04-06 | Positioning method and system for service end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610072068 CN101051930A (en) | 2006-04-06 | 2006-04-06 | Positioning method and system for service end |
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| CN101051930A true CN101051930A (en) | 2007-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610072068 Pending CN101051930A (en) | 2006-04-06 | 2006-04-06 | Positioning method and system for service end |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023989A (en) * | 2012-11-27 | 2013-04-03 | 北京百度网讯科技有限公司 | Communication method and communication system for terminal and terminal |
| CN104883389B (en) * | 2015-04-17 | 2018-12-25 | 新华三技术有限公司 | A kind of acquisition methods and equipment servicing end position |
-
2006
- 2006-04-06 CN CN 200610072068 patent/CN101051930A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023989A (en) * | 2012-11-27 | 2013-04-03 | 北京百度网讯科技有限公司 | Communication method and communication system for terminal and terminal |
| CN103023989B (en) * | 2012-11-27 | 2015-11-25 | 北京百度网讯科技有限公司 | For the communication means of terminal, communication system and terminal |
| CN104883389B (en) * | 2015-04-17 | 2018-12-25 | 新华三技术有限公司 | A kind of acquisition methods and equipment servicing end position |
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