CN104270472A - Remote service invocation method, device and system - Google Patents
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- CN104270472A CN104270472A CN201410579012.4A CN201410579012A CN104270472A CN 104270472 A CN104270472 A CN 104270472A CN 201410579012 A CN201410579012 A CN 201410579012A CN 104270472 A CN104270472 A CN 104270472A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/547—Remote procedure calls [RPC]; Web services
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Abstract
The application provides a remote service invocation method, device and system. The remote service invocation method and the remote service invocation device are both applied to a client and servers; the client are configured with a plurality of connection pools; the connection pools correspond to the servers respectively; when a service invocation request transmitted by a service invocation module is received, and a free target server is determined from the servers; a free target long connection is obtained in one connection pool corresponding to the target server; when the target long connection is in the effective state, the service invocation request is sent to the target server by using the target long connection, a service invoked by the target servers and corresponding to the service invocation requests is triggered to obtain an invocation result, the target server is triggered to return the invocation result, and the invocation result is sent to the service invocation module. Compared with the prior art, the service invocation module sends the service invocation request to a remote server, any server can be selected as a request object, and the stability and the safety of service invocation are improved.
Description
Technical field
The present invention relates to software technology field, especially a kind of remote service calling method, Apparatus and system.
Background technology
In software field, Develop Application System pattern is generally single running package pattern, namely the code wrap of application development generation is at least one engineering source code bag, and all engineering source code bags must run in same running environment, and all uses same Database Systems.
But, to the above-mentioned unicity requirement of running environment and Database Systems, make a service calling module of application program when practical function, local service implementation can only be called.That is, service calling module and service implementation must be integrated in same computer system, after this computer system goes wrong, all have an impact to service calling module and service implementation, therefore, service call less stable and fail safe is lower.
Summary of the invention
In view of this, the invention provides a kind of remote service calling method, Apparatus and system, in order to solve the less stable of service call in prior art and the lower technical problem of fail safe.For realizing described object, technical scheme provided by the invention is as follows:
A kind of remote service calling method, be applied to client, described client configuration has multiple connection pool, and each described connection pool is corresponding with a server all separately, and described method comprises:
When receiving the service invocation request that service calling module sends, in multiple described server, determine idle destination server;
In the connection pool that described destination server is corresponding, obtain the long connection of idle target;
When the long connection of described target is for effective status, utilize the long connection of described target, described service invocation request is sent to and described destination server, trigger described destination server and call the service corresponding with described service invocation request, with obtain call result, and trigger described destination server return described in call result;
Described result of calling is sent to described service calling module.
Above-mentioned remote service calling method, preferably, described in multiple described server, determine idle destination server, comprising:
Utilize polling algorithm, in multiple described server, determine idle destination server.
Above-mentioned remote service calling method, preferably, described in multiple described server, determine idle destination server, comprising:
In the first storehouse pre-set, determine idle destination server; Wherein, multiple destination server is included in described first storehouse.
Above-mentioned remote service calling method, preferably, in the connection pool that described destination server is corresponding, after obtaining the long connection of idle target, described method also comprises:
When the long connection of described target is for abnormality, described destination server is moved to the second storehouse pre-set from the first storehouse;
When any one long connection in the corresponding connection pool of described destination server is for effective status, described destination server is moved to described first storehouse from described second storehouse.
Above-mentioned remote service calling method, preferably, in the described connection pool corresponding at described destination server, obtains the long connection of idle target, comprising:
Utilize polling algorithm, in the connection pool that described destination server is corresponding, obtain the long connection of idle target.
Above-mentioned remote service calling method, preferably, calls before result is sent to described application program described by described, also comprises:
When receive that described destination server returns call result time, long for described target Connection Release is returned corresponding connection pool.
Present invention also offers a kind of remote service calling method, be applied to server, described method comprises:
When receiving the service invocation request that client sends, extract the service name in described service invocation request and call parameters;
According to described service name and call parameters, call the service that described service request is corresponding, call result to obtain.
Present invention also offers a kind of remote service calling device, be applied to client, described client configuration has multiple connection pool, and each described connection pool is corresponding with a server all separately, and described device comprises:
Destination server determining unit, for when receiving the service invocation request that service calling module sends, in multiple described server, determines idle destination server;
Target is long connects acquiring unit, in the connection pool that described destination server is corresponding, obtains idle target length and connects;
Destination service call unit, for when the long connection of described target is for effective status, utilize the long connection of described target, described service invocation request is sent to and described destination server, trigger described destination server and call the service corresponding with described service invocation request, with obtain call result, and trigger described destination server return described in call result;
Call result and return unit, for described result of calling is sent to described service calling module.
Present invention also offers a kind of remote service calling device, be applied to server, described method comprises:
Name parameter extraction unit, for when receiving the service invocation request that client sends, extracts the service name in described service invocation request and call parameters;
Destination service call unit, for according to described service name and call parameters, calls the service that described service request is corresponding, calls result to obtain.
Present invention also offers a kind of remote service calling system, comprise and be above-mentionedly applied in the remote service calling device of client and be applied in Server remote service call device.
From above technical scheme, remote service calling method provided by the invention, Apparatus and system, method and device all can be applied in client and server respectively, client configuration has multiple connection pool, each connection pool is corresponding with a server all separately, when receiving the service invocation request that service calling module sends, in multiple server, determine idle destination server, in the connection pool that destination server is corresponding, obtain the long connection of idle target, when the long connection of target is for effective status, utilize the long connection of target, service invocation request is sent to and destination server, the service that trigger target server calls is corresponding with service invocation request, result is called to obtain, and trigger target server returns and calls result, and result will be called be sent to service calling module.Compared with prior art, in the present invention, service calling module sends service invocation request to remote server, and any server can be selected as request object, improves stability and the fail safe of service call.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The flow chart being applied in the remote service calling method of client that Fig. 1 provides for the embodiment of the present invention;
Another flow chart being applied in the remote service calling method of client that Fig. 2 provides for the embodiment of the present invention;
The another flow chart being applied in the remote service calling method of client that Fig. 3 provides for the embodiment of the present invention;
The another flow chart being applied in the remote service calling method of server that Fig. 4 provides for the embodiment of the present invention;
The structured flowchart being applied in the remote service calling device of client that Fig. 5 provides for the embodiment of the present invention;
The structured flowchart being applied in the remote service calling device of server that Fig. 6 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Remote service calling method provided by the invention is applied in client, and client configuration has multiple connection pool, and each connection pool is corresponding with a server separately.Need to illustrate, the present invention is provided with multiple server, and each server all can realize the call request of service calling module.That is, backup each other between multiple server, achieve the load balancing of service invocation request.The call request of application program is realized module integration in prior art at a computer, the present embodiment can improve stability and the fail safe of service call.
Based on the system architecture of the above-mentioned client that provides and multiple server, embodiments provide a kind of remote service calling method.See Fig. 1, it illustrates the flow process of the method, this flow process specifically comprises:
Step S101: when receiving the service invocation request that service calling module sends, in multiple described server, determines idle destination server.
Wherein, service calling module is a module in client application, when this module needs to call remote service module, generates service invocation request, wherein, includes title and the parameter of the service that needs call in service invocation request.Service invocation request is sent to the executive agent of this method, when the executive agent of this method receives this service invocation request, needs, in the multiple servers arranged, to search a current server being in idle condition, be defined as destination server.
Step S102: in the connection pool that described destination server is corresponding, obtains the long connection of idle target.
Wherein, client is provided with multiple connection pool, each server is all corresponding with a connection pool.And equal initialization has multiple long connection in each connection pool.In the connection pool that the destination server determined is corresponding, search a current long connection being in idle condition, for sending service invocation request to this destination server.Need to illustrate that idle long connection refers to the connection of this length and do not taken transmission service invocation request by other service calling module arbitrary.
Step S103: when the long connection of described target is for effective status, utilize the long connection of described target, described service invocation request is sent to and described destination server, trigger described destination server and call the service corresponding with described service invocation request, with obtain call result, and trigger described destination server return described in call result.
Wherein, if network or server fail, target length can be caused to be connected to become down state.In order to improve the success rate of service invocation request, before transmission service invocation request, need to determine whether long connection is in effective status.When the long connection of target is in effective status, utilizes the long connection of this target, send service invocation request.Particularly, detecting the long method whether being in effective status that connects of target can be utilize the long connection of this target to send to destination server and detect packet, suppose the reply receiving destination server, determine that the long connection of this target is in effective status.
In the present embodiment, before transmission service invocation request, encapsulate in the packet after needing that service invocation request is carried out serializing, then utilize the long connection of target, by this Packet Generation to destination server.Destination server is provided with service end assembly, after the service end assembly of destination server receives service invocation request, realizes service invocation procedure, obtain service call result.
Particularly, packet after above-mentioned serializing is carried out unserializing process by destination server, obtain the title and parameter that need the service of calling, corresponding service execution module is found according to this service name, trigger this service execution module and perform service call, result is called in acquisition, this is called after result carries out serializing and connects by long the executive agent being back to the present embodiment.
Step S104: described result of calling is sent to described service calling module.
Wherein, the executive agent of the present embodiment receives after this calls result, will call after result carries out unserializing, and be sent to the service calling module sending service invocation request, complete service invocation procedure.
From above technical scheme, the remote service calling method that this enforcement provides, be applied in client, client is provided with multiple connection pool, and each connection pool is all corresponding with a server, and multiple servers of setting all can complete service invocation procedure, therefore, before transmission service invocation request, in the multiple servers arranged, an idle server can be determined.With only arrange in prior art one in order to realize service call mode compared with, the set-up mode of multiple server backup enhances stability and the fail safe of service call.
Meanwhile, in connection pool, initialization has multiple long connection, utilizes long connection service invocation request to be sent to the destination server determined.But, in prior art, utilize the short connection connecting realization and destination server.Use short connection, client all needs to create short connection, and after service call completes, needs to close short connection at every turn before needing to send service invocation request to server at every turn.Like this, the short connection of each establishment all needs to expend system resource, and overhead is comparatively large, and, the time delay of service call can be caused.The present embodiment client uses long connection to carry out data interaction with server, because long connection is the connection keeping with server all the time communicating, unless server end disconnects this connection for various reasons, therefore, client is connected by establishment one vice-minister, this length can be utilized to connect and repeatedly send service invocation request, overhead is less, and service call efficiency is higher.
In prior art, client has services cache function, namely the memory address of service execution module (or being referred to as service implementation) can be buffered in client this locality by client, after client receives the service invocation request of service calling module, first the memory address of service is searched in this locality, and the memory address found is included in the service invocation request of generation, be sent to server, this memory address determination service execution module position in internal memory of server direct basis, and then Trigger services Executive Module realizes service invocation procedure.But services cache method of the prior art, after the memory address of the service execution module of server changes, can cause the invalid of service invocation request, and then cause the failure of service call.
Unlike, in the present embodiment, service name and service parameter is only included in the service invocation request received, do not include the memory address of service execution module, but this service invocation request is sent to server, server, according to the corresponding relation of the memory address of the service name that pre-sets and service execution module, determines the memory address of the service execution module that the service name that needs to call is corresponding.After the memory address of service execution module changes, server can change the corresponding relation of memory address and service name thereupon, therefore, the remote service calling method that the present embodiment provides is dynamic, that is, and do not rely on the memory address being stored in advance in local service execution module, and then can avoid in prior art, the memory address of service execution module being prestored the service call failure scenario caused.
Need to illustrate, in the above-described embodiments, the concrete mode of the multiple server of client configuration is, records the IP address of each server and the port numbers of each server process service invocation request.In addition, Servers installed has service execution module, and server calls service execution module, to realize service invocation request, obtains service call result.The address of service execution module in server memory needs to be registered in server operating component, namely registration process is that the title of service and the memory address of service execution module are set up corresponding relation, like this, after server receives service invocation request, service name in foundation service invocation request and the corresponding relation of foundation, the memory address of service execution module can be determined, and then find the core position of service execution module, realize service invocation procedure.
Alternatively, the step S101 in above-described embodiment, in multiple described server, determines that the specific implementation of idle destination server can be: utilize polling algorithm, in multiple described server, determines idle destination server.
Particularly, polling algorithm refers to and judges whether each destination server is in idle condition successively.Suppose that the mark of multiple server is kept in queue, first server identification is obtained from row are first, judge whether the server that this server identification is corresponding is in idle condition, if so, the server that the server identification then this got is corresponding is defined as destination server, otherwise, the server identification got is put into the tail of the queue of queue, next server identification is obtained successively, the step of repeated obtain, until get idle server from head of the queue.If the server that the whole server identifications preserved in queue are corresponding is not all in idle condition, this service invocation request is set to wait state, and whether there is idle server in real-time judge queue, after there is idle server in queue, the server by this free time is defined as destination server.
Certainly, the present invention does not limit and determines that the mode of idle server utilizes polling algorithm, can also Weight algorithm be utilized, namely pre-set the weighted value of each server, be in the server that in the server of idle condition, weighted value is maximum be defined as destination server by current.
Refer to Fig. 2, it illustrates another flow process of the remote service calling method that the embodiment of the present invention provides.Alternatively, the mark of destination server device can be kept in storehouse, therefore, step S101 is in multiple described server, the specific implementation determining idle destination server can be step S201: when receiving the service invocation request that service calling module sends, in the first storehouse pre-set, determine idle destination server; Wherein, multiple destination server is included in described first storehouse.
In addition, known in the above description, may there is abnormality in the long connection of target, now shows that client normally can not communicate with destination server, therefore, see Fig. 2, on the remote service calling method basis that above-described embodiment provides, can also comprise:
Step S205: when the long connection of described target is for abnormality, described destination server is moved to the second storehouse pre-set from the first storehouse.
In the present embodiment, be previously provided with two storehouses, the first storehouse connects normal server for storing, and the second storehouse connects abnormal server for storing.Therefore, when the long connection of target is for abnormality, server corresponding for long for target connection and destination server is needed to move to from the first storehouse in the second storehouse, thus when can ensure to determine idle server in the first storehouse, ensure that the idle server determined is all connect normal idle server, and then improve the accuracy of service invocation procedure.
Step S206: when any one long connection in the corresponding connection pool of described destination server is for effective status, described destination server is moved to described first storehouse from described second storehouse.
Wherein, when occurring that any one long state connected is effective status in the corresponding connection pool of destination server, show that the connection of client and destination server becomes normal condition again, therefore, this order server is placed back in in the first storehouse, ensures that it can by normal call.
Need explanation, when the long connection of described target is for abnormality, show that the connection of this destination server is abnormal, need for service invocation request determines new destination server, namely after step S205, can also comprise: return to step S201 in the first storehouse pre-set, determine idle destination server.Can find out, be redundancy each other between multiple servers of setting, the server broken down can't affect the realization of client service call request.
Alternatively, in each embodiment of the method above-mentioned in the connection pool that described destination server is corresponding, the specific implementation process obtaining idle target length connection can be: utilize polling algorithm, in the connection pool that described destination server is corresponding, obtains the long connection of idle target.
Particularly, the process of polling algorithm is, judges whether the multiple long connection in connection pool is in idle condition successively.Namely obtain an alternative long connection in connection pool, judge whether this alternative long connection is in idle condition, if, then this alternative long connection is defined as the long connection of target, otherwise, obtain next the alternative long connection in connection pool, repeat above-mentioned deterministic process, connect until determine that target is long.And then, obtain the transmission that service invocation request is carried out in the long connection of this target determined.
Certainly, obtain the long mode connected of target, any one mode in all right prior art, the present invention does not limit.
In each inventive embodiments above-mentioned, need initialization connection pool.Namely initialization connection pool is in connection pool, set up long connection.Wherein, the long quantity connected of initialization can pre-set.When all long connection in connection pool is all in using state, new long connection can be created at any time, the new long connection created is defined as the long connection of target.
See Fig. 3, it illustrates the another flow process of the remote service calling method that the embodiment of the present invention provides, before the step S104 (the step S305 namely in this enforcement) of said method embodiment, can also comprise:
Step S304: when receive that described destination server returns call result time, long for described target Connection Release is returned corresponding connection pool.
Wherein, destination server utilizes target long connection will call result and return, therefore, when receive that destination server returns call result time, illustrate that the long connection of this target becomes idle condition.And then long for this target Connection Release is returned corresponding connection pool, be set to the free time by the long state be connected in corresponding connection pool of this target, the service invocation request for other uses.
Corresponding above-mentioned each is applied in the remote service calling method of client, and see Fig. 4, the invention provides a kind of remote service calling method, be applied in server, the method comprises:
Step S401: when receiving the service invocation request that client sends, extract the service name in described service invocation request and call parameters.
In the present embodiment, application remote service calling method on the server, not needing the memory address to client return service, more particularly, is the memory address of service execution module.Therefore, client does not need the memory address of buffer service, before sending service invocation request, does not need the memory address knowing service in advance yet, therefore, does not comprise the memory address of service execution module in service invocation request.
Step S402: according to described service name and call parameters, calls the service that described service request is corresponding, calls result to obtain.
Wherein, the executive agent of the present embodiment sends call request to service execution module, to call this service execution module, makes this service calling module realize service call, obtains service call result.
Compared with prior art, the present embodiment does not need the memory address sending service execution module to client, after receiving service invocation request, the memory address of direct basis service execution module and the corresponding relation of service name, determine to call service execution module, and call parameters is sent to this service calling module trigger can realize service call.The situation of the service call failure that this service calling method occurs after address of service can be avoided to change.
The embodiment of the method that corresponding above-mentioned Fig. 1 provides, the invention provides the remote service calling device being applied in client.Illustrate and see the explanation of said method embodiment, hereafter can not repeat.See Fig. 5, this remote service calling device specifically comprises:
Destination server determining unit 101, for when receiving the service invocation request that service calling module sends, in multiple described server, determines idle destination server;
Target is long connects acquiring unit 102, in the connection pool that described destination server is corresponding, obtains idle target length and connects;
Destination service call unit 103, for when the long connection of described target is for effective status, utilize the long connection of described target, described service invocation request is sent to and described destination server, trigger described destination server and call the service corresponding with described service invocation request, with obtain call result, and trigger described destination server return described in call result;
Call result and return unit 104, for described result of calling is sent to described service calling module.
Need to illustrate, this service call device is arranged on client, can think client component.Service invocation request can be sent in any idle server in multiple server by this client component, achieves the load balancing of service call.Meanwhile, utilize long interconnection technique to send service invocation request, overhead and time delay that short connection brings can be saved.
The embodiment of the method that corresponding above-mentioned Fig. 4 provides, the invention provides the remote service calling device being applied in server.Illustrate and see the explanation of said method embodiment, hereafter can not repeat.See Fig. 6, this remote service calling device specifically comprises:
Name parameter extraction unit 201, for when receiving the service invocation request that client sends, extracts the service name in described service invocation request and call parameters;
Destination service call unit 202, for according to described service name and call parameters, calls the service that described service request is corresponding, calls result to obtain.
Need to illustrate, this service call device is arranged on server, can think service end assembly.
Present invention also offers a kind of remote service calling system, comprise remote service calling device that above-mentioned Fig. 5 provides and the remote service calling device that Fig. 6 provides.This system can realize the service invocation request of client to be sent to server, will call result and be back to client, and realize remote service invoked procedure after server calls service.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a remote service calling method, is characterized in that, is applied to client, and described client configuration has multiple connection pool, and each described connection pool is corresponding with a server all separately, and described method comprises:
When receiving the service invocation request that service calling module sends, in multiple described server, determine idle destination server;
In the connection pool that described destination server is corresponding, obtain the long connection of idle target;
When the long connection of described target is for effective status, utilize the long connection of described target, described service invocation request is sent to and described destination server, trigger described destination server and call the service corresponding with described service invocation request, with obtain call result, and trigger described destination server return described in call result;
Described result of calling is sent to described service calling module.
2. remote service calling method according to claim 1, is characterized in that, described in multiple described server, determines idle destination server, comprising:
Utilize polling algorithm, in multiple described server, determine idle destination server.
3. remote service calling method according to claim 1, is characterized in that, described in multiple described server, determines idle destination server, comprising:
In the first storehouse pre-set, determine idle destination server; Wherein, multiple destination server is included in described first storehouse.
4. remote service calling method according to claim 3, is characterized in that, in the connection pool that described destination server is corresponding, after obtaining the long connection of idle target, described method also comprises:
When the long connection of described target is for abnormality, described destination server is moved to the second storehouse pre-set from the first storehouse;
When any one long connection in the corresponding connection pool of described destination server is for effective status, described destination server is moved to described first storehouse from described second storehouse.
5. remote service calling method according to claim 1, is characterized in that, in the described connection pool corresponding at described destination server, obtains the long connection of idle target, comprising:
Utilize polling algorithm, in the connection pool that described destination server is corresponding, obtain the long connection of idle target.
6. the remote service calling method according to claim 1 or 4, is characterized in that, calls before result is sent to described application program, also comprise described by described:
When receive that described destination server returns call result time, long for described target Connection Release is returned corresponding connection pool.
7. a remote service calling method, is characterized in that, is applied to server, and described method comprises:
When receiving the service invocation request that client sends, extract the service name in described service invocation request and call parameters;
According to described service name and call parameters, call the service that described service request is corresponding, call result to obtain.
8. a remote service calling device, is characterized in that, is applied to client, and described client configuration has multiple connection pool, and each described connection pool is corresponding with a server all separately, and described device comprises:
Destination server determining unit, for when receiving the service invocation request that service calling module sends, in multiple described server, determines idle destination server;
Target is long connects acquiring unit, in the connection pool that described destination server is corresponding, obtains idle target length and connects;
Destination service call unit, for when the long connection of described target is for effective status, utilize the long connection of described target, described service invocation request is sent to and described destination server, trigger described destination server and call the service corresponding with described service invocation request, with obtain call result, and trigger described destination server return described in call result;
Call result and return unit, for described result of calling is sent to described service calling module.
9. a remote service calling device, is characterized in that, is applied to server, and described method comprises:
Name parameter extraction unit, for when receiving the service invocation request that client sends, extracts the service name in described service invocation request and call parameters;
Destination service call unit, for according to described service name and call parameters, calls the service that described service request is corresponding, calls result to obtain.
10. a remote service calling system, is characterized in that, comprises remote service calling device as claimed in claim 8 and remote service calling device according to claim 9.
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