CN104363279A - Method and system for providing service - Google Patents
Method and system for providing service Download PDFInfo
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- CN104363279A CN104363279A CN201410640186.7A CN201410640186A CN104363279A CN 104363279 A CN104363279 A CN 104363279A CN 201410640186 A CN201410640186 A CN 201410640186A CN 104363279 A CN104363279 A CN 104363279A
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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
- H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
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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
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements
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Abstract
The invention provides a method and system for providing a service. By the adoption of the method and system for providing the service, the workload for maintenance of the system providing the service can be lightened, and the safety of the system is improved when the service is provided. The method for providing the service comprises the steps that the registration information of the service is stored in a database entry, wherein the registration information of the service contains the execution expression of the service; the identification of the database entry where the registration information of the service is located is encrypted, so that the access identification of the service is obtained, and then the service is published; service request information is received, wherein the service request information contains the access identification of the service; decryption is conducted on the received access identification of the service, so that the identification of the database entry where the registration information of the service is located is obtained, according to the identification of the database entry, the registration information of the service in the database entry is obtained, and then the service is processed according to the registration information of the service.
Description
Technical field
The present invention relates to a kind of method and system that service is provided.
Background technology
Application system is usually to provide the mode of service to meet the various application demands of user, and service is issued by application system usually, obtains service by user's request service.In reality, often through mode issuing services such as Enterprise SOA SOA (Service-Oriented Architecture) or WebService, need a set of web services definition language WSDL of customization (WebServices Description Language) or interface standard separately for different services.As Dubbo framework popular at present, by supporting different host-host protocols, reaching the access of Distributed Services and calling.
Adopt the technology such as SOA, WebService, can be looked unfamiliar product interface accessing object by code layer, by the mode of serializing, transmit calling interface and parameter object between protocols rather than more.Concrete operation step can be first by instrument (generally being provided by Open Framework), according to an interface object, generates corresponding interface (issue action).This interface is once issue, and visible to all visitors.Generally can carry out authority filtration by some token classes.This framework of picture dubbo, issuing service is then more simple, directly can start a service according to interface.Then by client-access interface, such as, be directed to given server (cluster) by IP or domain name, directly call with the same interface of service end, namely may have access to this service, parameter type etc. also can be described in the interface.
To adopt webservice, in service end, first defining interface, exploitation code, then generates interface description document WSDL (generally passing through instrument), then issues this service according to webservice standard; In client, first wsdl document is obtained, and produce fetcher code (generally passing through instrument) according to this file, then the client code of generation is called, import parameter (parameter is generally object) into, the code of generation mainly through serializing interface, serializing object, thus generate the service request of a http agreement, finally this request sent to service end to obtain service.Service end resolves this request upon receipt of a service request, is reduced to service end object, and fills this object properties, obtains the interface called and the parameter imported into, finally calls the implementation of this interface, reach the effect of service access.
In above prior art, the implementation of service is all subject to the restriction of application scenarios and complexity, and provide object as there are tens up to a hundred services among a system, then maintenance workload is huge.And need, calling end generation client code, to add corresponding exploitation and maintenance workload.Way conventionally in addition, service object, once issue, is difficult to effectively destroy and control to perform number of times and out-of-service time, adds some risks of issuing service.
Summary of the invention
In view of this, the invention provides a kind of method and system that service is provided, the maintenance workload of the system that service is provided can be reduced, and improve the fail safe of system when providing service.
For achieving the above object, according to an aspect of the present invention, a kind of method that service is provided is provided.
The method of service that provides of the present invention comprises: be saved in data base entries by the log-on message of service, comprise the executable expressions of service in the log-on message of described service; The mark of the data base entries at the log-on message place of service is encrypted to the access identities obtaining serving, then issuing service; Receive service request information, in this service request information, comprise the access identities of service; The access identities of the service received is decrypted to the mark of the data base entries at the log-on message place obtaining serving, obtain the log-on message of the service in this data base entries according to the mark of this data base entries, then serve according to the log-on message process of this service.
Alternatively, one or more information in the following are also comprised in the log-on message of described service: the maximum call number of service and the current call number of service; The out-of-service time of service and/or destroy state mark; Have permission the mark of the user of this service of request; The step of described process service comprises: one or more information above-mentioned comprised in the log-on message according to described service, judge whether this service can perform, and performs this service in executable situation.
Alternatively, in the step of described issuing service, the agreement that specified services solicited message uses.
Alternatively, the information for calling other services is comprised in the executable expressions of described service.
According to a further aspect in the invention, a kind of system that service is provided is provided.
The system of service that provides of the present invention comprises: service definition module, for: the log-on message of service is saved in data base entries, in the log-on message of described service, comprises the executable expressions of service; The mark of the data base entries at the log-on message place of service is encrypted to the access identities obtaining serving, then issuing service; Service processing module, for receiving service request information, comprises the access identities of service in this service request information; The access identities of the service received is decrypted to the mark of the data base entries at the log-on message place obtaining serving, obtain the log-on message of the service in this data base entries according to the mark of this data base entries, then serve according to the log-on message process of this service.
Alternatively, one or more information in the following are also comprised in the log-on message of described service: the maximum call number of service and the current call number of service; The out-of-service time of service and/or destroy state mark; Have permission the mark of the user of this service of request; Described service processing module also for according to one or more information above-mentioned comprised in the log-on message of described service, judges whether this service can perform, and performs this service in executable situation.
Alternatively, described service release module is also used to specify the agreement that service request information uses.
Alternatively, the information for calling other services is comprised in the executable expressions of described service.
According to technical scheme of the present invention, by database application providing in service, save the log-on message of service in data base entries, issue after the mark encryption of data base entries, this mode enables a large amount of services have unified request method on the one hand, namely provides the unified entrance of service; In the content of service issue, do not have interface to describe on the other hand, thus details can be described by protection interface, make service end safer; Without the need to writing too much code when another aspect makes to provide service, reduce maintenance workload.By the executable expressions of amendment service, calling between serving can be realized easily; By adding related content in the log-on message of service, can realize the effective destruction after service object's issue, control to perform number of times and out-of-service time, these all contribute to the fail safe improving service.
Accompanying drawing explanation
Accompanying drawing is used for understanding the present invention better, does not form inappropriate limitation of the present invention.Wherein:
Fig. 1 is the schematic diagram of the preferred flow of process service request according to the embodiment of the present invention;
Fig. 2 provides the element of the system of service and the schematic diagram of correlation function according to the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, one exemplary embodiment of the present invention is explained, comprising the various details of the embodiment of the present invention to help understanding, they should be thought it is only exemplary.Therefore, those of ordinary skill in the art will be appreciated that, can make various change and amendment, and can not deviate from scope and spirit of the present invention to the embodiments described herein.Equally, for clarity and conciseness, the description to known function and structure is eliminated in following description.
In embodiments of the present invention, providing of service comprises service issue and two stages of service processing.At service launch phase, the log-on message of service is saved in data base entries, comprise the executable expressions of service in the log-on message of service here, then the mark of the data base entries at the log-on message place of service is encrypted to the access identities obtaining serving, last issuing service.In the service processing stage, first receive service request information, in this service request information, comprise the access identities of service; Then the access identities of the service received is decrypted to the mark of the data base entries obtaining the log-on message place served, the log-on message of the service in this data base entries is obtained according to the mark of this data base entries, then serve according to the log-on message process of this service, thus realize providing service to requesting party.
In the present embodiment, first will carry out service registry, be saved in data base entries by the log-on message of service, the log-on message of service, except the executable expressions of service, as required, can also comprise some other information.Such as, can also comprise the maximum call number of service and the current call number of service in the log-on message of serving, when service registry, current call number is 0, upgrades this call number when serving each being called.Like this when processing service, can judge whether service can perform according to the current call number of service and maximum call number.Similarly, out-of-service time and/or the destroy state mark of service can be added in service registration information, to realize the duration of serving and the service of destroying; The mark of the user of this service of authority request can also be added with, to realize the control to user right in service registration information.Service name, service describing, execution parameter set, founder, creation-time etc. can also be added in the log-on message of serving in addition.
In the present embodiment, the log-on message of each service is kept in the entry of database, and an entry preserves the log-on message of a service.Compared with the information existed with code form with interface coded description and client coded description etc., the entry of database is convenient to search and revise very much, so the mode of the log-on message of service of preserving in data base entries in the present embodiment makes the relevant information of serving and method of service be easy to administer and maintain.Above service expression formula can adopt existing various expression language such as object navigation language OGNL to write, and can also comprise service parameter set in service registration information, so that the parameter when performing service easily needed for load and execution.The information for calling other services can be comprised in executable expressions, other services can be called so easily when an execution expression formula, to realize calling between service, which reduce the number of times that client sends service request, facilitate client and reduce the load of server for service request, call relation between services needs only need revise executable expressions when amendment.
Service registry completes and after log-on message is persisted to database, return an access object, this object comprises the access identities of service.This access identities preferably adopts the mode of encryption to obtain.Can be encrypted the mark of the data base entries at the log-on message place of service, or encrypt after adding a random number.For key-Value Data storehouse, the mark of entry is the key name of this entry, and the log-on message of service is corresponding key assignments.The coding of base64 mode first such as can be adopted to the combination of data base entries or data base entries and random number, then the encryption of such as des mode is carried out, thus obtaining an encryption string, this encryption string is the access identities of this service, and is unique.Above-mentioned access identities and random number can be added in above-mentioned data base entries.
When issuing service, comprise the access identities of service in releasing news, and can comprise the title of the agreement that service request information should use, such client just sends service request by this agreement to server.Obviously the access identities of service should be comprised in service request information.Namely service end carries out the process of serving after receiving service request information, can carry out according to the flow process shown in Fig. 1, and Fig. 1 is the schematic diagram of the preferred flow of process service request according to the embodiment of the present invention, and this flow process is performed by service end.
Step S101: receive service request information.
Step S102: judge the access identities whether comprising service in service request information.If so, enter step S104, otherwise enter step S103.
Step S103: abnormal parameters information of dishing out.
Step S104: started by decipherment algorithm to resolve the access identities imported into.Such as successively base60 coding is carried out to the combination of data base entries and random number and des encrypts, then in this step, carry out des deciphering successively and base60 decodes.
Step S105: judging that can access identities decrypted, unsuccessfully jumping to step S103 as deciphered.As deciphered no exceptions, enter step S106.
Step S106: form access object.This object comprises following data structure: the access identities before the access identities after encryption, encryption, data base entries mark, random number.Here the access identities before encryption is identified by data base entries below and random number is formed, and adds separator, such as ". " therebetween.
Step S107: obtain data base entries mark and random number from above-mentioned access object.
Step S108: the service determining current request.Can be obtained an entry of database by data base entries mark, thus determine defined service, i.e. a service for current request, this service is inner can comprise calling of other services, or a undefined local method call.
Step S109: judge whether the service of current request can perform.Executable condition can contain following some: 1, service is defined, and can inquire in a database.2, executable expressions is arranged, and is not null character string.If have employed random number during 3 above-mentioned encryption, then the random number in access object is consistent with the random number in log-on message.If contain the out-of-service time in the log-on message of 4 services, then the current method time of implementation must be less than the out-of-service time.If contain maximum access times in the log-on message of 5 services, then the total access times of current service must be less than defined service access maximum times.Above-mentioned each condition all meets then this service and can perform, and now enters step S111, otherwise enters step S110.
Step S110: output abnormality information, notification service is unavailable.
Step S111: obtain service object's attribute or executable service parameter from the log-on message of service.
Step S112: judge whether territory can be used.Territory is the context of the executable expressions of the service of current request, and this context can be a local unregistered method or service, also can be a service of having issued.Service parameter is specified when service registry, or is provided to service end according to protocol mode by service requester.In this step as can not find context or abnormal parameters then jumps to step S113.
Step S113: return execution domains or abnormal parameters information.
Step S114: executable expressions is performed.Such as perform the executable expressions that OGNL writes, the service definition that $ starts, by No. $ expression, is the service of access one definition when resolving by a defined service.Its access mode adopts current process, can be regarded as the iteration of a service in life cycle.
Step S115: whether run succeeded in determining step S114.Unsuccessfully step S116 is jumped to as performed.
Step S116: export and perform failed information.
Step S117: record current execution result and time of implementation.
Fig. 2 provides the element of the system of service and the schematic diagram of correlation function according to the embodiment of the present invention.As shown in Figure 2, provide the system of service mainly to comprise service definition module and service processing module, wherein service definition module is used for: be saved in data base entries by the log-on message of service; The mark of the data base entries at the log-on message place of service is encrypted to the access identities obtaining serving, then issuing service.Service processing module, for receiving service request information, comprises the access identities of service in this service request information; The access identities of the service received is decrypted to the mark of the data base entries at the log-on message place obtaining serving, obtain the log-on message of the service in this data base entries according to the mark of this data base entries, then serve according to the log-on message process of this service.
As shown in Figure 2, access identities maker and service release unit can be comprised in service definition module.The access identities of the service that access identities maker generates by service release unit is sent to memory cell thus persistence.Runtime database in memory cell, and with service-seeking unit, serve to destroy unit and perform history storage unit and be connected.Service processing module can comprise service reception end, authentication unit, preparatory unit and performance element.
Service-seeking unit can the service of query-defined, registration, and it comprises the called number of times of service, the situations such as service call historical information.Service is destroyed unit and is used for the chartered service of destruction one, and make service failure, this service can not be used, until reawake.
Service reception end is unique interface access entrance, all service call access request are all initiated to this interface, this interface unserializing access identities, and be encapsulated as an access object, then access object is passed to authentication unit, the access identities of authentication unit analysis service, and service is searched from service registration information, as this service is not defined, there is exception; If the executable expressions of current service does not exist, then there is exception; If the random train that current service has been destroyed or obtain after serving out of date or current decryption does not match with random train during service definition, there is exception.To dish out when occurring abnormal information.
Preparatory unit resolves executable expressions, Analysis Service territory and interface attributes service-domain represent the concrete grammar that needs perform, or other registration services that needs call, interface attributes represents the parameter called service needs and specify, this parameter can be arbitrary value, be generally json serializing object or directly fundamental type parameter as: string goes here and there, int type etc.
After the encapsulation of preparatory unit Data Analysis, system will obtain two objects, be executable expressions and access attribute (required parameter) respectively, parameter encapsulates with the form of map, and needs the parameter of bringing into mate by the key value of map and expression formula.
Preparatory unit is verified accordingly to expression formula and parameter.Whether the service of specifying as expression formula or method exist, and whether the parameter that expression formula need be brought into exists, and if do not existed, then exception occurs.Final performance element will be performed executable expressions.In the present embodiment, expression formula type selecting can adopt OGNL expression formula, its Local Service depends on framework that current system uses, as general data uses spring as layer architecture, each assembly is coupled together, Local Service then depends on the assembly module that current architecture provides, and this department is brought among implementation as parameter.One then represents identifier with " " number for starting with the service defined, with ". " number for end identifier.After performance element has operated, no matter execution result, by log history information, this part completes by performing history storage unit.
According to the technical scheme of the embodiment of the present invention, by database application providing in service, the log-on message of service is saved in data base entries, issue after the mark encryption of data base entries, this mode enables a large amount of services have unified request method on the one hand, namely provides the unified entrance of service; In the content of service issue, do not have interface to describe on the other hand, thus details can be described by protection interface, make service end safer; Without the need to writing too much code when another aspect makes to provide service, reduce maintenance workload.By the executable expressions of amendment service, calling between serving can be realized easily; By adding related content in the log-on message of service, can realize the effective destruction after service object's issue, control to perform number of times and out-of-service time, these all contribute to the fail safe improving service.
Below general principle of the present invention is described in conjunction with specific embodiments, but, it is to be noted, for those of ordinary skill in the art, whole or any step or the parts of method and apparatus of the present invention can be understood, can in the network of any calculation element (comprising processor, storage medium etc.) or calculation element, realized with hardware, firmware, software or their combination, this is that those of ordinary skill in the art use their basic programming skill just can realize when having read explanation of the present invention.
In apparatus and method of the present invention, obviously, each parts or each step can decompose and/or reconfigure.These decompose and/or reconfigure and should be considered as equivalents of the present invention.Further, the step performing above-mentioned series of processes can order naturally following the instructions perform in chronological order, but does not need necessarily to perform according to time sequencing.Some step can walk abreast or perform independently of one another.
Above-mentioned embodiment, does not form limiting the scope of the invention.It is to be understood that depend on designing requirement and other factors, various amendment, combination, sub-portfolio can be there is and substitute in those skilled in the art.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within scope.
Claims (8)
1. a method for service is provided, it is characterized in that, comprising:
The log-on message of service is saved in data base entries, in the log-on message of described service, comprises the executable expressions of service;
The mark of the data base entries at the log-on message place of service is encrypted to the access identities obtaining serving, then issuing service;
Receive service request information, in this service request information, comprise the access identities of service;
The access identities of the service received is decrypted to the mark of the data base entries at the log-on message place obtaining serving, obtain the log-on message of the service in this data base entries according to the mark of this data base entries, then serve according to the log-on message process of this service.
2. method according to claim 1, is characterized in that,
One or more information in the following are also comprised: the maximum call number of service and the current call number of service in the log-on message of described service; The out-of-service time of service and/or destroy state mark; Have permission the mark of the user of this service of request;
The step of described process service comprises: one or more information above-mentioned comprised in the log-on message according to described service, judge whether this service can perform, and performs this service in executable situation.
3. method according to claim 1, is characterized in that, in the step of described issuing service, and the agreement that specified services solicited message uses.
4. according to the method described in claim 1,2 or 3, it is characterized in that, in the executable expressions of described service, comprising the information for calling other services.
5. a system for service is provided, it is characterized in that, comprising:
Service definition module, for: the log-on message of service is saved in data base entries, in the log-on message of described service, comprises the executable expressions of service; The mark of the data base entries at the log-on message place of service is encrypted to the access identities obtaining serving, then issuing service;
Service processing module, for receiving service request information, comprises the access identities of service in this service request information; The access identities of the service received is decrypted to the mark of the data base entries at the log-on message place obtaining serving, obtain the log-on message of the service in this data base entries according to the mark of this data base entries, then serve according to the log-on message process of this service.
6. system according to claim 5, is characterized in that,
One or more information in the following are also comprised: the maximum call number of service and the current call number of service in the log-on message of described service; The out-of-service time of service and/or destroy state mark; Have permission the mark of the user of this service of request;
Described service processing module also for according to one or more information above-mentioned comprised in the log-on message of described service, judges whether this service can perform, and performs this service in executable situation.
7. system according to claim 5, is characterized in that, described service release module is also used to specify the agreement that service request information uses.
8. according to the system described in claim 5,6 or 7, it is characterized in that, in the executable expressions of described service, comprising the information for calling other services.
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