JPH09198285A - Method and system for developing and constructing client/server system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of development by developing and constructing a client/server system including data base processing, complicated processing other than the data base processing and file access processing such as file transfer as server processing. SOLUTION: When a data base access request is outputted, a data base access request processing part 103 receives the request, checks the contents of the request and transfers the request to a client communication part 109 to wait for a result. The communication part 109 transmits the request to a server 112 by a certain determined protocol. A server communication part 110 receiving the request transfers the request to a data base access execution processing part 106. The processing part 106 executes processing for a data base 116 and transfers the processed result to the sever communication part 110. The communication part 110 transmits the result to a client 111 by a certain determined protocol.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE _{INVENTION 1. Field of the} Invention The _{present invention relates to a} client / server system development and construction method and system.
_{In particular,} it is composed of one or more clients and one server. Especially, database processing as server processing, unique application processing other than database processing, and file access processing such as file transfer between client / server. The present invention relates to a development / construction system for developing a client / server system including a.

[0002]

2. Description of the Related Art _{As a conventional example, JP-flat} 5-12816
_No. 1, JP-A-4-264661, etc.
_{There is} a method for accessing the database from _the client to the server, or a command registration method _for the server as shown in, and when accessing the database between the server and the client, add the function (command) to the server. If you run that command,
It is possible to construct a client / server by using each method according to the function, such as when accessing a file between the server / client.

[0003]

[Problem to be Solved by the Invention] 1 having a database
In order to construct a processing system consisting of one server and one or more clients, the access processing function for the database on the server, the data transfer processing function between the client and the server for data other than the database, and the high-speed processing For the sake of simplification and simplification, it is necessary to have a function to incorporate the processing unique to the application to be developed into the server and a function to execute the incorporated function from the client. However, in order to realize each function, it is necessary to use a communication program for each function. Here, one is the problem of coexistence of each middleware, and the other is the problem that it is necessary to understand / acquire the language and interface unique to each middleware.

[0004]

Clients of the present invention /
The server system development and construction method requests the client to access the database on the server,
The database access request function that receives the result, the database access execution function that executes the access process to the database received from the client on the server side and returns the result to the client, the file transfer execution from the client to the server, the file information retrieval File access request function to request, file access execution function to execute access processing related to file requested by client on server side, client communication to communicate between client and server for these request processing and execution processing It is characterized by including a function and a server communication function.

This client / server system development / construction method includes a user function embedding function for embedding application-specific processing on the server side in the access function between the client and server, and a user who requests execution of the user function incorporated in the server. The function execution request function and the user function execution processing function for executing the user function requested by the client on the server side may be included.

The client / server system development / construction system of the present invention comprises a database access request processing unit for requesting an access process from a client to a database on a server and a result, and an access process to the database received from the client on the server side. The database access execution part that executes the command and returns the result to the client, the file access request processing part that requests the server to execute the file transfer and retrieve the file information, and the file requested by the client on the server side. File access execution processing section for executing access processing relating to the above, and a client communication section and a server communication section for communicating between the client and the server for these request processing and execution processing. .

The development / construction system of the client / server system requests the execution of the user function embedded in the server and the user function embedded processing unit for incorporating the processing unique to the application on the server side in the access processing between the client / server. A user function execution request processing unit and a user function execution processing unit that executes the user function requested by the client on the server side may be included.

[0008]

BEST _{MODE FOR CARRYING OUT THE INVENTION} Next, a description with reference to the drawings, _{embodiments of the} present invention.

FIG. 1 is a functional block diagram showing an embodiment _{of the} present invention. The development / construction system 101 can develop and construct a client / server system including a client 111 and a server 112. The client 111 is ... 102: 102 and the application 1
02, a database access request processing unit 103 for processing a request from the server 02, a file access request processing unit 104,
User function execution request processing unit 105, database access request processing unit 103, file access request processing unit 1
04: A client communication unit 109 for issuing a request from the user function execution request processing unit 105 to the server and receiving the result. The server 112 includes a database 116 and a database access execution processing unit 106.
, A file access execution processing unit 107, a user function execution processing unit 108, and a server communication unit 110 for receiving a request from the client 111 and returning the result.
And a user function embedding processing unit 11 that embeds a user function 114 for performing processing unique to the application on the server side.
3 and a command / function correspondence table 115.

When there is a database access request, the database access request processing unit 103 accepts it, checks the content of the request, passes it to the client communication unit 109, and waits for the result. The client communication unit 109 communicates a database access request to the server 112 using a certain protocol. The server communication unit 110 that has received the database access request passes the database access request to the database access execution processing unit 106. The database access execution processing unit 106 processes the database 116 and passes the result to the server communication unit 110. The server communication unit 110 communicates the result to the client 111 using a certain protocol. The client communication unit 109 returns the result to the database request processing unit 103, and the database request processing unit 103 returns the execution result to the application 102.

Similarly, when there is a file access request from the client application, the file access request processing unit 104 receives it, checks the request content, passes it to the client communication unit 109, and waits for the result. The client communication unit 109 communicates the file access request to the server 112 using a certain protocol, and the server 11
2 is a communication unit 110 and a file access execution processing unit 107
Process through. When a file transfer process is requested, the file transfer with the client 111 is performed, and the result is transmitted via the server communication unit 110 and the client communication unit 109 to the file access request processing unit 104.
Return to.

FIG. 2 shows the structure of the command / function correspondence table. In order to register the user function, first, the user function 114 is added to the server 112 in order to perform the processing unique to the application on the server side, the command name and the function name are registered in the command / function correspondence table 115, and the server is set up. Regenerate. Client application 102
Requesting _{execution of the user function} to the user function execution request unit 105 specifies the arguments to be passed to the command name and the command from. The user function request processing unit 105 passes _this request to the client communication unit 109 and waits for the result. The client communication unit 109 uses the server 1 with a certain protocol.
12. Communicate to 12 _the request to _{execute the user function} . The server communication unit 110 that has received the request is the user function execution processing unit 10
Pass the contents to 8. The user function execution processing unit 108 extracts the function corresponding to the command name from the command / function correspondence table 115, passes the argument to the function, and executes the function.
The execution result is displayed by the server communication unit 110 and the client communication unit 1
It is returned to the user function execution request processing unit 105 via 09.

The database access request processing unit 103 and the database access execution processing unit 106 for accessing the database 116, the file access request processing unit 104 and the file access execution processing unit 107 for performing file access, and the execution of user functions are executed. Each of the processing units of the user function execution request processing unit 105 and the user function execution processing unit 108 for execution can configure the present system with a combination of one or more requests and executions suitable for respective purposes. Of course.

FIG. 3 shows a flowchart of the processing procedure.
A request is issued from the client application (
_{When step} 301) is performed, a database access request process (step 3) is performed depending on whether the request is a database access, a file access, or a user function access.
02) or file access request processing (step 30)
3) or the user function execution request process (step 304) is performed. Each request processing unit assembles a communication protocol and sends a request from the client to the server (step 305)
Then, the result will be returned. The server accepts the request via the network and distributes the request to each processing unit of the server (step 306). As a result, the database access execution processing unit executes the processing related to the database access (step 307), the file access execution processing unit executes the processing related to the file access (step 308), and the user function execution is executed regarding the user function. Execution is performed by the processing unit (step 309). The result executed by each execution processing unit is transmitted from the server to the client (step 310). The client receives the result and returns it to each request processing waiting for the result (step 31).
1). Each request processing unit (steps 312, 313, 31
4) returns the execution result to the application.

[0015]

The development / construction system of the client / server system according to the present invention executes the function in which the access processing from the client to the database on the server and the data transfer processing of the data other than the database are uniquely incorporated into the application to be developed. Since the processing for doing can be done with the same language and the same interface,
There is an effect that development efficiency can be improved without having to learn middleware having each function.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram of the present invention._{It is.} FIG. 2_{In one embodiment of the present invention}Command / function
Correspondence table_FIG. FIG. 3_{According to one embodiment of the present invention}Processing procedure_Showflow
It is a chart. _{[Explanation of symbols]}  101 Development and Construction System 102 Application 103 Database Access Request Processing Unit 104 File Access Request Processing Unit 105 User Function Execution Request Processing Unit 106 Database Access Execution Processing Unit 107 File Access Execution Processing Unit 108 User Function Execution Processing Unit 109 Client Communication Unit 110 Server Communication Part 111 Client 112 Server 113 User Function Embedded Processing Part 114 User Function 115 Command / Function Correspondence Table 116 Database

Claims (4)

[Claims] 1. A database access request function for requesting access processing from a client to a database on a server and receiving the result, and database access for executing the access processing to the database received from the client on the server side and returning the result to the client. An execution function, a file access request function for requesting file transfer execution and file information retrieval from the client to the server, and a file access execution function for executing access processing related to the file requested by the client on the server side. A development / construction method of a client / server system including a client communication function and a server communication function for performing communication between a client and a server for request processing and execution processing. 2. A client / server access function, a user function built-in function that incorporates application-specific processing on the server side, a user function execution request function that requests execution of a user function incorporated in the server, and a server side development construction method of a client / server system _according to _claim 1, comprising a user function execution process function for executing a user function was the client requested. 3. A database access request processing unit for requesting an access process from a client to a database on a server and receiving the result, and a database for executing the access process to the database received from the client on the server side and returning the result to the client. An access execution processing unit, a file access request processing unit that requests file transfer execution and file information retrieval from the client to the server, and a file access execution processing unit that performs access processing related to the file requested by the client on the server side And a client / server system development / construction system including a client communication unit and a server communication unit that perform communication between a client and a server for request processing and execution processing. 4. A user function embedding processing unit for embedding application-specific processing on the server side in access processing between a client and a server, and a user function execution request processing unit for making an execution request for a user function incorporated in the server.
4. The development / construction system for a client / server system according to claim 3, further comprising a user function execution processing unit that executes a user function requested by the client on the server side.