JP2002073580A - Client computer, server computer, and network computer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cooperatively use a host computer and a Web application computer. SOLUTION: In the network computer system constituted of a client computer 3 and a server computer 2, which are mutually connected, and a host computer 4 connected to the server computer 2, the client computer 3 is provided with a processing information input part 12, a result receiving part 14 and a browser 15. The server 2 is provided with an information dividing part 22 dividing processing information into first processing information processed by the server 2 and second processing information processed by the host 4, a server performing part 23 performing the program of the server 2 based on first processing information, a data system converting part 24 connecting second processing information into data which can be recognized by the host 4, a browser system converting part 26 converting a result performed based on second processing information into a system which can be displayed by the browser 15 and a result transmission part 27 transmitting a result converted by the part 26 and a result performed by the server performing part 23 to the result receiving part 14. The host 4 is provided with the host performing part 31 performing the program of the host based on second processing information and returning a processing result to the server.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a client computer and a server computer connected to each other via an open network such as the Internet, and a host computer which is connected to the server computer and specializes in core business. The present invention relates to a network computer system composed of

[0002]

2. Description of the Related Art In recent years, the Internet, especially the Web, which is one of the functions on the Internet, has been greatly developed and grown. Accordingly, as shown in FIG. 5, in a network computer system including a client computer 3 (provided with a web browser) and a web application computer (server computer) 2 connected to each other via the Internet 1, Various methods are conceivable and implemented for data exchange between the computer 3 and the web application computer 2.

As a method of such data exchange, initially, session management using a servlet session object is applied, and the protocol is HTT.
P was used. When session management is performed by this method, the session ID is often exchanged using COOKIE. However, if the client computer 3 rejects acceptance of COOKIE, processing may not be established. Therefore, such a network computer system including the client computer 3 and the web application computer 2 is not suitable for application to a core business system.

On the other hand, a user of such a network computer system sends a web application computer 2 from a client computer 3 using a web browser.
In addition to data transfer with the client computer 3, the client computer 3 directly accesses the existing host computer for the core business system, and the system assets stored in the host computer without any special operation from the client computer 3
There has been an increasing demand for free use through a web browser.

As shown in FIG. 6, such access to the host computer 4 has conventionally been available only from a dedicated terminal device 6 connected via a dedicated line 5, and therefore, FIG.
As shown in, the client computer 3 and the host computer 4
By separately developing the interface 8 for directly connecting the client computer 3 and the host computer 4, the cooperation between the client computer 3 and the host computer 4 is enabled.

In connection with this, Japanese Patent Laid-Open No. 2000-5709
No. 1 discloses a client computer 3 using a terminal emulator of a host computer 4 on the client computer 3.
A system for directly accessing an existing host computer 4 has been proposed.

According to this technique, when the user wants to use the host computer 4, the emulator module can be used by transferring the emulator module from the emulator control server to the client computer 3, as shown in FIG. This is the same as the case where the client computer 3 and the host computer 4 are connected via the interface 8. In this case, the client computer 3 merely substitutes for the terminal device 6 shown in FIG. 6 by using a web browser, and when performing a core business, the application provided in the host computer 4 is provided. You can only use.

In view of this, recently, as shown in FIG. 8, a configuration in which a host computer 4 is connected via a dedicated line 5 to a web application computer 2 in a network computer system configuration as shown in FIG. Is used.

By constructing such a network computer system having three layers of the host computer 4, the web application computer 2, and the client computer 3, the user can use the web computer of the client computer 3.
The processing request information is output to the web application computer 2 via the browser, the application program of the web application computer 2 is used, and the result is output to the host computer 4. It is possible to update the existing core business database or to search for relevant data from the core business database.

[0010]

However, such a conventional network computer system has the following problems.

That is, in the network computer system having the configuration as shown in FIG. 8, a web browser serving as a server computer is transmitted via a web browser of the client computer 3.
The application program of the application computer 2 is started, and based on the result, the data of the host computer 4 can be updated or searched. However, the web application computer 2 Since it does not have a function for activating the program, it is not possible to use the program of the host computer 4 through the web browser of the client computer 3.

For this reason, the host computer 4 can only be used as a mere data storage means, and the necessary program is a program which has the same function and is already provided in the host computer 4. However, there is a problem that both the hardware resources and the software resources cannot be effectively used.

The present invention has been made in view of such circumstances, and a first object of the present invention is to enable a host computer to execute a program of a host computer based on an operation input from a client computer. A client computer, a server computer, and a network computer system capable of effectively utilizing hardware resources and software resources by eliminating the need for a server computer (web application computer) program having the same functions as the program having the same. To provide.

A second object of the present invention is to enable a server computer (web application computer) to combine a result executed by a program of a host computer and a result executed by a program of a server computer. It is another object of the present invention to provide a client computer, a server computer, and a network computer system which can use a host computer and a server computer in cooperation with each other.

[0015]

Means for Solving the Problems In order to achieve the above object, the present invention takes the following measures.

That is, according to the first aspect of the present invention, there is provided a client computer that communicates with a server computer via a communication network, and a process to be executed by the server computer and a host computer for a core business connected to the server computer. Means for inputting the information of the processing information, processing information input means for generating processing information associated with which information is performed in the server computer and which is performed in the host computer, the processing information in the server computer, After being divided into first processing information to be executed by the server computer and second processing information to be executed by the host computer, the server computer and the host computer are divided based on the first and second processing information. And a display unit for displaying the processing result.

Therefore, in the client computer according to the first aspect of the present invention, by taking the above means, the first processing information processed by the server computer and the second processing information processed by the host computer are obtained. And the results can be received and displayed.

According to the second aspect of the present invention, while communicating with a client computer via a communication network,
A server computer connected to the host computer via the host computer, the processing information being a request for computer processing received from the client computer being processed by the host computer as first processing information on processing to be executed by itself Processing information dividing means for dividing the processing information into second processing information to be processed, server program executing means for executing processing based on the first processing information divided by the processing information dividing means, and processing information dividing means The second processing information divided by the first processing information is converted into a data format recognizable by the host computer and transmitted to the host computer, and the first processing information executed by the server program executing means is converted into the first processing information. A processing result executed by the host computer based on the processing result based on the second processing information is received from the client computer. And a processing result transmission means for transmitting to the client computer as a processing result for the processing information.

Therefore, in the server computer according to the second aspect of the present invention, by taking the above measures, the processing information received from the client computer is processed by the host computer and the first processing information is processed by the host computer. And returning the result processed by the host computer based on the first processing information and the result processed by the host computer based on the second processing information to the client computer side. Can be.

According to a third aspect of the present invention, in a network computer system comprising a client computer and a server computer connected to each other via a transmission line, and a host computer for a core business connected to the server computer, Processing information input means for inputting processing information relating to processing to be executed by the server computer or the host computer in association with the computer to be executed; and receiving a processing result transmitted from the server computer, the processing result being based on the processing information. Processing information receiving means, and a browser screen for displaying the processing result received by the processing result receiving means. The server computer is provided with the processing information input by the processing information input means of the client computer, and the associated computer Based on the server's own server computer Processing information dividing means for dividing the processing information into second processing information and second processing information to be processed by the host computer, and the first processing information divided by the processing information dividing means into a predetermined program provided in its own server computer. Converts the second processing information divided by the server program execution means and the processing information dividing means into a data format recognizable by the host computer, and transmits the converted second processing information to the host computer Data format conversion means, and when the processing result returned from the host computer is confirmed to be the result of processing based on the second processing information transmitted to the host computer by the data format conversion means, A browser format conversion means for converting a processing result into a data format that can be displayed on a browser screen provided in the client computer; The processing result converted into the data format that can be displayed on the browser screen by the conversion means and the processing result processed by the server program execution means are processed by the client computer having the processing information input means from which the processing information is input. Processing result transmitting means for transmitting to the result receiving means, the host computer processes the second processing information transmitted from the data format converting means of the server computer by a predetermined program provided in the host computer, There is provided a host program executing means for returning a result of the processing to a server computer having a data format converting means which is a transmission source of the second processing information.

Therefore, in the network computer system according to the third aspect of the present invention, by taking the above means, the program of the server computer and the program of the host computer are linked based on the operation input from the client computer. Can be executed.

According to a fourth aspect of the present invention, in a network computer system including a client computer and a server computer connected to each other via a transmission line, and a host computer for a core business connected to the server computer, Access request means for inputting access request information for requesting access to the server computer; authentication information input means for inputting authentication information necessary for access based on a request from the server computer of the access request destination;
When access permission information is transmitted from the server computer of the access request destination, processing information input means for inputting processing information relating to processing to be executed by the server computer or the host computer in association with the computer to be executed; A processing result receiving unit that receives a processing result that is a result of processing based on the processing information to be transmitted; and a browser screen that displays the processing result received by the processing result receiving unit. Based on the access request information input by the request means,
Authentication information requesting means for requesting the client computer side of the access request to input authentication information necessary for access;
When performing authentication processing based on the authentication information input by the authentication information input means and performing authentication, the access permission information is transmitted to the client computer of the access request source, and the client computer of the access request source and its own server are transmitted. A first processing unit that processes processing information input by an access permission unit that performs an access procedure with a computer and processing information input by a processing information input unit of an authenticated client computer on its own server computer based on the associated computer;
Processing information dividing means for dividing the processing information into second processing information and second processing information to be processed by the host computer, and the first processing information divided by the processing information dividing means into a predetermined program provided in its own server computer. Converts the second processing information divided by the server program execution means and the processing information dividing means into a data format recognizable by the host computer, and transmits the converted second processing information to the host computer Data format conversion means and the processing result returned from the host computer are compared and confirmed as to whether or not the result is processed based on the second processing information transmitted to the host computer by the data format conversion means. The collation confirmation unit and the collation confirmation unit process the processing result based on the second processing information transmitted to the host computer by the data format conversion unit. If it is confirmed that the processing result is obtained, the processing result is converted to a data format that can be displayed on the browser screen provided in the client computer, and the browser format conversion means can display the data on the browser screen Result of transmitting the processing result converted into a special data format and the processing result processed by the server program execution means to the processing result receiving means of the client computer having the processing information input means which is the input source of the processing information Transmitting means for processing the second processing information transmitted from the data format converting means of the server computer to a host computer by a predetermined program provided in the host computer; Execution of a host program that returns a server computer having a data format conversion unit that is a source of information Equipped with a stage.

Therefore, in the network computer system according to the fourth aspect of the present invention, by taking the above measures, only the authenticated client computer can use this system, and as a result, the security of the system is reduced. It is possible to increase.

According to a fifth aspect of the present invention, in the network computer system according to the fourth aspect of the present invention, the processing result returned from the host computer is transmitted to the host computer by the data format conversion means by the collation confirmation means. If it is not confirmed that the processing result is based on the processing information, the processing result returned from the host computer is the input source of the processing information together with the first error message of the content of the verification mismatch. First error processing means for transmitting to a processing result receiving means of a client computer having processing information input means; and, if an abnormality has occurred in the host computer, a second error message indicating the content of the host computer abnormality To the processing result receiving means of the client computer having the processing information input means as the input source of the processing information. And a processing result receiving means of the client computer, a processing result transmitted from the first error processing means, a first error message, and a second error processing means transmitted from the second error processing means. And the browser screen of the client computer displays the processing result and the error message received by the processing result receiving means.

Therefore, in the network computer system according to the fifth aspect of the present invention, even if there is a data difference between the processing information and the processing result by taking the above-described means, the client computer can perform the processing. Can be notified to the side. Further, even if any abnormality occurs in the host computer, the fact can be reported to the client computer side. As a result, a more reliable network computer system can be realized.

According to a sixth aspect of the present invention, in the network computer system according to any one of the third to fifth aspects, the server computer is provided with the first processing information divided by the processing information dividing means. When executing the predetermined program, if the processing result that is the result of the processing by the host program executing means is required, the server program executing means transmits the first processing information divided by the processing information dividing means. Using the processing result converted by the browser format conversion unit, a predetermined program provided in the server computer is executed.

Therefore, in the network computer system according to the sixth aspect of the present invention, by taking the above means, the program can be further executed on the server computer by using the processing result performed by the host computer. . As a result, it is possible to execute a program with higher applicability.

According to a seventh aspect of the present invention, in the network computer system according to any one of the fourth to sixth aspects of the present invention, the client computer accesses the server computer by the access permitting means of the server computer. The host program execution means of the host computer executes a predetermined program based on the second processing information transmitted from the data format conversion means of the server computer. When the client computer which has input the processing information which is the original information before the processing information of No. 2 is divided by the processing information dividing means releases the access procedure with the server computer which was accessing by the access releasing means. Means that the processing result transmission means is The processing result converted into a data format that can be displayed on the browser screen is stored in association with the client computer that has input the processing information that is the original information of the second processing information, and the client computer accesses the server computer. When the access is permitted again, the stored processing result is transmitted to the processing result receiving means of the client computer.

Therefore, in the network computer system according to the present invention, even if the client computer releases the access to the server computer during the execution of the program, the above measures are taken.
The processing result of the program can be held. Then, when the client computer accesses the server computer again, the held processing result can be output to the client computer side. As a result, a more reliable network computer system can be realized.

[0030]

Embodiments of the present invention will be described below with reference to the drawings.

The same reference numerals in the drawings used in the description of the following embodiments denote the same parts as in FIG.

(First Embodiment) A first embodiment of the present invention will be described with reference to FIGS.

FIG. 8 is an overall configuration diagram showing an example of the network computer system according to the first embodiment of the present invention.

That is, the network computer system according to the first embodiment of the present invention is configured by connecting computers such as a plurality of workstations, and has a browser and is connected to a public network 1 such as the Internet. Client computer 3 and this public network 1
Is a server computer connected to the client computer 3 via the client computer 3 and performs various processes in accordance with an operation input from the client computer 3. The web application computer 2 having an application program and the web application computer Connect to Calculator 2,
And a host computer 4 having an existing core business system.

FIG. 1 is a block diagram showing a detailed configuration example of the network computer system according to the first embodiment of the present invention, and FIG. 2 shows a flow of data processing of the network computer system according to the first embodiment. It is a data flow diagram shown.

The network computer system according to the first embodiment of the present invention is configured as shown in FIG. 1 so that various application programs are transmitted from the client computer 3 to the web application computer 2 via the browser. , Or freely use the system resources stored in the host computer 4, and further provide the web application computer 2 with a predetermined value based on the results of the system resources and programs stored in the host computer 4. Or an application program.

In order to realize such a thing, the web application computer 2 has a client computer 3
First processing information for processing the processing information input from the web application computer 2 by the web application computer 2 and the host computer 4
And a function of dividing the second processing information into the second processing information.

Further, the web application computer 2
Has the function of converting the second processing information processed by the host computer 4 into a data format that can be processed by the host computer 4 and then transmitting the converted data to the host computer 4.

Further, the web application computer 2
Has a function of converting the processing result processed by the host computer 4 into a data format that can be browsed via a browser on the client computer 3 side, and then transmitting the converted data to the client computer 3.

The client computer 3 includes an access request unit 10, an authentication information input unit 11, a processing information input unit 12, an access release unit 13, a processing result receiving unit 14, which are connected to each other via the internal bus 9. , A browser screen 15.

The access request unit 10 includes a browser screen 15
The access request information for requesting access of the client computer 3 is input to the web application computer 2 via the web application computer 2 and transmitted to the web application computer 2.

The authentication information input unit 11 inputs authentication information necessary for access based on a request from the web application computer 2 to which the access is requested, and transmits the authentication information to the web application computer 2.

When the access permission information is transmitted from the web application computer 2 to which the access is requested, the processing information input unit 12 inputs the processing information relating to the processing to be executed by the web application computer 2 or the host computer 4. The data is input in association with the computer to be executed (the web application computer 2 or the host computer 4) and transmitted to the web application computer 2.

The access release unit 13 provided in the client computer 3 outputs logout information, which is information for requesting release of access to the web application computer 2 currently accessed by the client computer 3, to the web application computer 2 Send to the side.

The processing result receiving section 14 receives a processing result transmitted from the web application computer 2 and which is a result of processing performed by the server program executing section 31 based on processing information described later. Further, the processing result receiving unit 14 receives an error message transmitted from a first error processing unit 28 described later and an error message transmitted from a second error processing unit 29 described later.

The browser screen 15 displays the processing result receiving unit 14
Displays the processing result received by. Further, using this screen, the access request unit 10 and the authentication information input unit 1
1. The processing information input unit 12 and the access release unit 13 create input information to be transmitted to the web application computer 2 side. Further, the browser screen 15 displays a program processing result and an error message received by the processing result receiving unit 14, and an error message transmitted from a second error processing unit 29 described later.

The web application computer 2 is connected to the authentication information request unit 2 via the internal bus 19.
0, an access permission unit 21, a processing information division unit 22,
Server program execution unit 23, data format conversion unit 24
A collation confirmation unit 25, a browser format conversion unit 26, a processing result transmission unit 27, a first error processing unit 28, a second
, An error processing unit 29 and a logout processing unit 30.

The authentication information requesting unit 20 includes the access requesting unit 1
On the basis of the access request information input by 0, it requests the client computer 3 of the access request source to input authentication information necessary for access.

The access permitting section 21 is provided with the authentication information input section 1
In the case of performing authentication processing based on the authentication information input by the user 1 and performing authentication, the access permission information is transmitted to the client computer 3 of the access request source, and the client computer 3 and the web application computer 2 of the access request source are transmitted. And access procedure.

The processing information division unit 22 divides the processing information input by the authenticated processing information input unit 12 of the client computer 3 based on the associated computer (the web application computer 2 or the host computer 4). , And is divided into first processing information processed by its own web application computer 2 and second processing information processed by the host computer 4.

The server program execution unit 23 executes a predetermined program provided in the web application computer 2 based on the first processing information divided by the processing information division unit 22. When executing a predetermined program using the first processing information divided by the processing information dividing unit 22, the server program executing unit 23 performs processing of a host program executed by a host program executing unit 31 described later. When the result is required, the program is executed using the first processing information divided by the processing information dividing unit 22 and the processing result of the host program converted by the browser format converting unit 26 described later.

The data format converter 24 converts the second processing information divided by the processing information divider 22 into a data format recognizable by the host computer 4, and converts the converted second processing information to the host computer. Send it to Calculator 4.

The collation confirmation unit 25 converts the processing result of the host program transmitted from the host program execution unit 31 of the host computer 4 based on the second processing information transmitted to the host computer 4 by the data format conversion unit 24. Check whether the result is the result of program execution.

The browser format conversion unit 26 includes the collation confirmation unit 2
5, when the processing result transmitted from the host program execution unit 31 is confirmed to be the processing result based on the second processing information transmitted to the host computer 4 by the data format conversion unit 24, The processing result transmitted from the program execution unit 31 is converted into a data format that can be displayed on the browser screen 15 provided in the client computer 3.

The processing result transmitting unit 27 is processed by the host program processing unit 31 converted into a data format that can be displayed on the browser screen 15 by the browser format converting unit 26, and executed by the server program executing unit 23. The processing result is transmitted to the processing result receiving unit 14 of the client computer 3 which is the input source of the processing information.

Further, the processing result transmitting section 27 transmits the data format converting section 24 of the web application computer 2 in the host program executing section 31 of the host computer 4.
While the predetermined program is being executed based on the second processing information transmitted from the client computer 3, the client computer 3 that has input the processing information that is the original information of the second processing information is accessed by the access release unit 13. When the access procedure with the web application computer 2 that has been performed is canceled, the processing result processed by the host program unit 31 converted into the data format that can be displayed on the browser screen 15 by the browser format conversion unit 26 is The processing information that is the original information of the second processing information is stored in association with the input client computer 3. When the client computer 3 is again permitted to access by the access permission unit 21 of the web application computer 2, the stored processing result is stored in the client computer 3.
Is transmitted to the processing result receiving unit 14.

The first error processing unit 28 executes the program based on the processing result transmitted from the host program execution unit 31 based on the second processing information returned to the host computer 4 by the data format conversion unit 24. If the result is not confirmed by the collation confirmation unit 25, the processing result transmitted from the host program execution unit 31 is added together with the error message of the content of the authentication confirmation mismatch,
The processing information is transmitted to the processing result receiving unit 14 of the client computer 3 which is the input source of the processing information.

When any abnormality occurs in the host computer 4, the second error processing unit 29 sends an error message indicating the abnormality of the host computer 4 to the processing result of the client computer 3 which is the input source of the processing information. The data is transmitted to the receiving unit 14.

In this case, the abnormality of the host computer 4 means that the processing result, which is the result of executing the program in the host program execution unit 31 based on the converted second processing information, is returned to the verification unit 25. The time up to the predetermined time is a so-called timeout, the host program execution unit 31 of the host computer 4 ends abnormally, or the host computer 4 shuts down.

The logout processing unit 30 determines whether an abnormal termination has occurred among all the processes executed in the apparatus.
Alternatively, when logout information, which is information requesting the release of access from the access release unit 13, is transmitted to the web application computer 2 at the end of the access, logout processing is performed so that the next access can be performed normally. I have.

The host computer 4 has a host program execution unit 31.

The host program execution unit 31 is provided with the data format conversion unit 24 of the web application computer 2.
Based on the second processing information transmitted from the host computer 4, a predetermined program provided in the host computer 4 is executed, and the processing result is returned to the web application computer 2 that has transmitted the second processing information.

The network computer system according to the first embodiment of the present invention having such a configuration further comprises an applet on the client computer 3 side and an EJB (Enterprise JavaBeans) on the web application computer 2 side.
RMI (Remote Method Inocatio) between objects
The coordination according to n) is performed, and session management is performed by the EJB stateful session bean on the web application computer 2.

As a result, communication between the client computer 3 and the web application computer 2 becomes possible, and efficient communication, session management and security enhancement can be achieved. Conventional HTML (Hyper Text Markup La
nguage) / HTTP (Hyper Test Transfer Protocol)
Method (client computer 3 equipped with a browser, processing results of web application computer 2 on the server side)
Format, for data browsing and information dissemination)
IIOP (Internet Inter ORB (Object Req) is used as a protocol between the applet on the client computer 3 side and the EJB on the web application computer 2 side as a server.
uest Broker) protocol enables highly reliable communication.

Further, by communicating between the client computer 3 and the web application computer 2 using the highly reliable IIOP protocol, the existing core business system in the host computer 4 can be message-linked (data can be transmitted). It is converted to a format that can be processed by each computer and transmitted).

Thus, without modifying the program of the host computer 4, it is possible to use the resources of the existing host system stored in the host computer 4 from the client computer 3 in the web environment having the browser screen 15. It is possible.

This network computer system comprises a LAN such as Ethernet (registered trademark) or a WAN to which a plurality of LANs are connected via a public line or a dedicated line. In the case of a LAN, it is composed of a number of subnets via routers as needed. In the case of a WAN, a firewall or the like for connecting to a public line is appropriately provided, but illustration and detailed description thereof are omitted here.

Next, the first embodiment of the present invention constructed as described above
The operation of the network computer system according to the embodiment will be described with reference to the flowchart shown in FIG.

First, the user of the client computer 3
When processing such as a program and a search is performed by using the network computer system, the user requests the access request unit 1
The access request information (for example, URL information) is input via the Web application computer 2 and transmitted to the web application computer 2 to be accessed (S1).

On the web application computer 2 side, the authentication information requesting unit 20 receives this access request information, and the authentication information requesting unit 20 sends the user ID and password of the user ID and password as authentication information to the requesting client computer 3. An input request is made. This input request is accepted and displayed by the authentication information input unit 11 on the client computer 3 side. Then, the user inputs and transmits a user ID and a password as authentication information in accordance with the displayed input request (S2).
It is received by the access permission unit 21 of the application computer 2.

The authentication information received by the access permitting section 21 is collated with the user ID and password registered in advance (S3). And
When the verification of the authentication information is confirmed (S4: yes)
In s), the access request is permitted, an access procedure is performed between the requesting client computer 3 and the web application computer 2, and information indicating that the access is permitted is transmitted to the client computer 3 (S5). ).

On the other hand, if the verification of the authentication information input from the client computer 3 is not confirmed (S4: n
In step o), the process returns to step S1.

In step S5, the access permission unit 2
Based on the access permission information transmitted from the client computer 3, the user inputs the web application computer 2 and the host computer 4 from the processing information input unit 12 of the client computer 3.
Is input (S6).

The input operations performed in the client computer 3 include an access request input, an authentication information input,
The input of processing information and the like may be performed through general browser software.

When the processing information input by the user in this way is transmitted to the web application computer 2 side, the processing information is received by the processing information dividing unit 22, and further, the web application computer 2 It is divided into first processing information executed by the program possessed therein and second processing information executed by the data and program possessed by the host computer 4 (S7).

Then, the program execution based on the first processing information is executed by the server program execution unit 23, and the result is output to the processing result transmission unit 27 (S
8).

On the other hand, the second processing information is transmitted to the host computer 4 after being converted into a data format of a format that can be processed by the host computer 4 by the data format conversion unit 24.
The program is executed by the host program execution unit 31, and the result is returned to the web application computer 2 (S9).

At this time, if any abnormality has occurred in the host computer 4 or the processing has not been performed normally (S10: no), the second error processing unit 29 executes the host program at that time. The execution of the program in the unit 31 is stopped, and information indicating that “an error has occurred in the host computer” is transmitted to the processing result receiving unit 14 of the client computer 3.
Is displayed (S14).

If no abnormalities occur in the host computer 4 and the processing is performed normally (S10: yes), the returned processing result is converted by the collation confirmation unit 25 into a data format conversion. It is confirmed whether or not the information matches the information obtained based on the second processing information output from the unit 24 to the host program execution unit 31 (S11). In the header of the host program processing result returned from the host program execution unit 31, the second processing information which is an input condition for executing this program is printed. The processed second processing information is the second processing information output from the data format conversion unit 24.
By comparing whether or not the processing information matches the processing information, the collation can be easily performed.

The collation confirmation unit 25 confirms that the processing result performed by the host program execution unit 31 is based on the second processing information output from the data format conversion unit 24 to the host program execution unit 31. If this is the case (S11: yes), the processing result is converted by the browser format conversion unit 26 into a data format that can be displayed by the browser software, and output to the processing result transmission unit 27 (S12). If necessary, the processing result converted into a data format that can be displayed by the browser software is used as input information in the server program execution unit 23.

On the other hand, the result of processing performed by the host program execution unit 31 by the collation confirmation unit 25 is as follows:
From the data format conversion unit 24 to the host program execution unit 31
If it is confirmed that the execution is not based on the second processing information output in step S11 (S11: no), the first error processing unit 28 determines that “the execution of the program is based on the correct input information. Was not transmitted to the processing result receiving unit 14 of the client computer 3 and is displayed on the browser screen 15 (S15).

In step S8, processing result transmitting section 27
The processing result output by the server program execution unit 23 and the processing result output by the host program execution unit 31 output from the browser format conversion unit 26 to the processing result transmission unit 27 in step S12 are the processing results The data is combined in the transmission unit 27, transmitted to the processing result receiving unit 14 of the client computer 3 as one piece of processing result information, and further displayed via the browser screen 15 (S13).

While the program processing is being performed based on the processing information from the client computer 3 as described above, the user releases the access of the client computer 3 by the access release section 13 of the client computer 3. Even in this case, the execution of the program based on the already input processing information is continued, and the result is stored in the processing result transmission unit 27 together with the user ID information of the request source. When the web application computer 2 is accessed by the same user ID, the stored processing result is transmitted to the processing result transmitting unit 27.
Is transmitted to the processing result receiving unit 14 of the client computer 3 and is displayed from the browser screen 15.

As described above, in the network computer system according to the first embodiment of the present invention, the processing information to be executed by the web application computer 2 by the processing information dividing unit 22 by the operation as described above;
The processing information to be executed by the host computer 4 can be divided, and the program can be executed by each computer.

The processing information executed by the host computer 4 is converted by the data format conversion unit 24 into a data format that can be processed by the host computer 4 and then transmitted to the host computer 4. Existing core business programs can be used without any modification.

Further, the processing results executed by the computers 2 and 4 can be combined and returned to the client computer 3. Web application computer 2
Executes a program based on the processing result executed by the host computer 4, and the result of the program execution can be similarly combined and returned to the client computer 3.

That is, existing core business programs and data assets can be utilized from the web environment of the client computer 3 without modifying the program of the host computer 4.

Also, the web application computer 2
The processing result processed by the program of the host computer 4 and the processing result processed by the program of the host computer 4 can be combined and returned to the client computer 3, so that the program function of the host computer 4 and the web application An extremely versatile system can be realized by combining with the program function of the computer 2.

In other words, the host computer 4 originally developed as a core business system is suitable for handling a huge amount of data, and has many core business programs with routine processing in mind. These core business programs are suitable for performing routine processing, but are not necessarily suitable for performing atypical processing. Once installed in the host computer 4, these core business programs are executed. It is difficult to change it because many routines are used. On the other hand, the web application computer 2 is a computer that can easily add, change, or delete a so-called customized program according to a user's request.

As described above, the network computer system according to the present embodiment can complement the functions of the host computer 4 and the functions of the web application computer 2, so that it is extremely versatile. The system can be realized. Of course, the web application computer 2 does not need to include a program having the same function as the program of the host computer 4, so that hardware resources and software resources can be effectively used.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIG.

FIG. 4 is a block diagram showing a detailed configuration example of the network computer system according to the second embodiment of the present invention.

In the network computer system according to the second embodiment of the present invention, a processing history information holding unit 33 is added to the web application computer 2 of the network computer system according to the first embodiment shown in FIG. It has a configuration.

The processing history information holding unit 33 holds processing history information for identifying the operation status between the web application computer 2 and the host computer 4, and transmits the content in response to a request from the client computer 3 side. I do. When the user inputs the disclosure request of the processing history information to the web application computer 2 via the browser screen 15 of the client computer 3, the processing history information held in the processing history information holding unit 33 is changed to the request source. Is transmitted to the client computer 3 and is displayed via the browser screen 15.

When the processing history information holding unit 33 receives a processing history information disclosure request input from the client computer 3 side, the processing history information holding unit 33 stores the processing history information based on the user ID of the currently accessed user. When the process history information of the user ID includes a history of abnormal termination, the content is transmitted to the client computer 3 and displayed via the browser screen 15.

Next, the second embodiment of the present invention constructed as described above will be described.
The operation of the network computer system according to the embodiment will be described below.

That is, the processing history information holding unit 33 in the network computer system according to the present embodiment
The processing history information for confirming the operation status between the web application computer 2 and the host computer 4 is held, and the user confirms the current processing status by confirming the content via the browser screen 15. be able to.

For example, the statuses such as "successful transmission / reception", "successful transmission but an error in processing result reception", and "successful transmission but no processing result received within the reception waiting period" are determined. can do. Further, a search on the processing history information is performed based on the user ID, and when the processing history information includes a history of abnormal termination, the content can be notified to the user and displayed on the browser screen 15.

When the user inputs logout information from the access release unit 13 of the client computer 3,
Web application computer 2 based on this information
A logout process is performed by the logout processing unit 30 of, the access of the client computer 3 to the web application computer 2 is released, and the next access is performed normally.

As described above, in the network computer system according to the present embodiment, in addition to the functions and effects achieved in the first embodiment, the user operates the browser screen 15 of the client computer 3 via the browser screen 15. The operation status between the web application computer 2 and the host computer 4 can be grasped.

As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to such configurations. Within the scope of the technical idea described in the claims, those skilled in the art can come up with various modified examples and modified examples, and these modified examples and modified examples are also within the technical scope of the present invention. It is understood that it belongs to.

[0102]

As described above, according to the present invention,
The program of the host computer can be executed based on an operation input from the client computer, thereby eliminating the need for a server computer (web application computer) program having the same function as the program of the host computer, thereby realizing hardware. It is possible to realize a client computer, a server computer, and a network computer system capable of effectively utilizing ware resources and software resources.

Further, the result executed by the program of the host computer and the result executed by the program of the server computer can be combined with the server computer, so that the host computer and the server computer are used in cooperation with each other. It is possible to realize a client computer, a server computer, and a network computer system that can perform the operations.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a detailed configuration example of a network computer system according to a first embodiment.

FIG. 2 is a data flow chart showing a flow of data processing of the network computer system according to the first embodiment.

FIG. 3 is a flowchart illustrating an operation of the network computer system according to the first embodiment;

FIG. 4 is a block diagram showing a detailed configuration example of a network computer system according to a second embodiment;

FIG. 5 is a schematic configuration diagram of a conventional network computer system (1).

FIG. 6 is a schematic configuration diagram (2) of a conventional network computer system.

FIG. 7 is a schematic configuration diagram (3) of a conventional network computer system.

FIG. 8 is a schematic configuration diagram (4) of a network computer system according to a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Public network 2 ... Web application computer 3 ... Client computer 4 ... Host computer 5 ... Dedicated line 6 ... Terminal device 8 ... Interface 9 ... Terminal emulator 9, 19 ... Internal bus 10 ... Access request part 11 ... Authentication information input part DESCRIPTION OF SYMBOLS 12 ... Processing information input part 13 ... Access release part 14 ... Processing result receiving part 15 ... Browser screen 20 ... Authentication information request part 21 ... Access permission part 22 ... Processing information division part 23 ... Server program execution part 24 ... Data format conversion part Reference numeral 25: verification / confirmation unit 26: browser format conversion unit 27: processing result transmission unit 28: first error processing unit 29: second error processing unit 30: logout processing unit 31: host program execution unit 33: processing history information retention Department

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoichi Suenaga 580 Horikawacho, Saiwai-ku, Kawasaki-shi, Kanagawa Prefecture Inside NKK Exa Co., Ltd. KK Exa Co., Ltd. (72) Inventor Keiko Fukumoto 580 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa F-term (reference) 5B045 BB23 GG02 5B085 AA01 BC02 BG00 BG07 5B098 AA10 GA04 GC16

Claims (7)

[Claims] 1. A client computer that communicates with a server computer via a communication network, wherein said server computer and means for inputting processing information to be executed by a main business host computer connected to the server computer. Processing information input means for generating processing information in which the information is associated with which processing is to be performed by the server computer and which is to be performed by the host computer; and wherein the processing information is, in the server computer, After being divided into first processing information to be executed by the host computer and second processing information to be executed by the host computer, the server computer and the host computer perform operations based on the first and second processing information. A processing result receiving unit that receives the processed processing result; and a display unit that displays the processing result. And client computer. 2. A server computer that communicates with a client computer via a communication network and is connected to a host computer via a LAN. The server computer transmits processing information, which is a request for computer processing received from the client computer, to the server computer. Processing information dividing means for dividing into first processing information about processing to be executed by the host computer and second processing information about processing to be executed by the host computer; A server program executing means for executing processing based on the first processing information; and a second processing information divided by the processing information dividing means, converted into a data format recognizable by the host computer. Data format conversion means for transmitting the first processing information to the first processing information executed by the server program execution means. Processing result transmitting means for transmitting, to the client computer, a processing result executed by the host computer based on the processing result based on the second processing information as a processing result for the processing information received from the client computer. A server computer characterized by the following. 3. A network computer system comprising a client computer and a server computer connected to each other via a transmission path, and a host computer for a core business connected to the server computer, wherein the client computer includes the server computer Alternatively, processing information relating to processing to be executed by the host computer,
Processing information input means for inputting in association with the computer to be executed, processing result receiving means for receiving a processing result transmitted from the server computer, the processing result being based on the processing information; and receiving the processing result A browser screen for displaying the processing result received by the means,
The processing information input by the processing information input means of the client computer is processed by the server computer based on the associated computer and first processing information processed by its own server computer and the host computer. Processing information dividing means for dividing the processing information into second processing information, and server program executing means for processing the first processing information divided by the processing information dividing means using a predetermined program provided in its own server computer. Converting the second processing information divided by the processing information dividing means into a data format recognizable by the host computer, and transmitting the converted second processing information to the host computer. Means and a processing result returned from the host computer are transmitted to the host computer by the data format conversion means. A browser that converts the processing result into a data format that can be displayed on the browser screen provided in the client computer when it is confirmed that the processing result is based on the processed second processing information A format conversion unit, the processing result converted into a data format that can be displayed on the browser screen by the browser format conversion unit, and a processing result processed by the server program execution unit are input sources of the processing information. A processing result transmitting means for transmitting the processing result to the processing result receiving means of the client computer having the processing information input means; and the second processing transmitted from the data format converting means of the server computer to the host computer. The information is processed by a predetermined program provided in the host computer, and the processing result is processed in the second processing. Network computer system characterized by comprising a host program executing means for replying to said data format conversion means the server computer and a is the transmission source of the information. 4. A network computer system comprising a client computer and a server computer connected to each other via a transmission line, and a host computer for a core business connected to the server computer, wherein the client computer includes the server computer Access request means for inputting access request information requesting access to the server; authentication information input means for inputting authentication information necessary for the access based on a request from the server computer of the access request destination; When access permission information is transmitted from the server computer, processing information inputting means for inputting processing information relating to processing to be executed by the server computer or the host computer in association with the computer to be executed, and Processing based on the processing information to be transmitted. Processing result receiving means for receiving a processing result being a result of the processing, and a browser screen for displaying the processing result received by the processing result receiving means. Based on the request information, an authentication information requesting unit for requesting the client computer side of the access request source to input authentication information necessary for the access, and performing an authentication process based on the authentication information input by the authentication information inputting unit. Performing and authenticating, while transmitting access permission information to the client computer side of the access request source,
An access permitting unit for performing an access procedure between the client computer of the access request source and its own server computer, and processing information input by the processing information inputting unit of the authenticated client computer based on the associated computer. Processing information dividing means for dividing into first processing information to be processed by its own server computer and second processing information to be processed by the host computer; and first processing information divided by the processing information dividing means. A server program executing means for processing the data by a predetermined program provided in its own server computer, and converting the second processing information divided by the processing information dividing means into a data format recognizable by the host computer. Data format conversion means for transmitting the converted second processing information to the host computer; Collation confirmation means for collating and confirming whether or not the processing result returned from the host computer is a result of processing based on the second processing information transmitted to the host computer by the data format conversion means; When the collation confirmation unit confirms that the processing result is a result of processing based on the second processing information transmitted to the host computer by the data format conversion unit, A browser format conversion unit for converting a processing result into a data format displayable on the browser screen provided in the client computer; and the processing result converted into a data format displayable on the browser screen by the browser format conversion unit. And a processing result processed by the server program execution means before the processing information is input. Processing result transmitting means for transmitting to the processing result receiving means of the client computer having processing information input means; and the second processing information transmitted from the data format converting means of the server computer to the host computer. Is executed by a predetermined program provided in the host computer, and the processing result is returned to the server computer including the data format conversion unit, which is the transmission source of the second processing information. A network computer system comprising: 5. The network computer system according to claim 4, wherein the processing result returned from the host computer by the collation confirmation unit is transmitted to the host computer by the data format conversion unit.
If it is not confirmed that the processing result is based on the processing information, the processing result returned from the host computer is input together with the first error message of the content of the verification mismatch, and the input of the processing information is performed. A first error processing means for transmitting to the processing result receiving means of the client computer having the processing information input means as a source, and, when an abnormality occurs in the host computer, a notification of the abnormality of the host computer A second error processing unit for transmitting a second error message of the content to the processing result receiving unit of the client computer having the processing information input unit which is an input source of the processing information; The processing result receiving means, the processing result transmitted from the first error processing means and the first error message, Receiving the second error message transmitted from the second error processing means, the browser screen of the client computer displaying the processing result and the error message received by the processing result receiving means. A network computer system characterized by the following. 6. The network computer system according to claim 3, wherein the predetermined processing information provided in the server computer using the first processing information divided by the processing information dividing means. When executing the program, if the processing result obtained by the processing by the host program executing means is required, the server program executing means may execute the first processing divided by the processing information dividing means. A network computer system, wherein a predetermined program provided in the server computer is executed using information and a processing result converted by the browser format conversion unit. 7. The network computer system according to claim 4, wherein the client computer accesses the server computer by an access permission unit of the server computer. Wherein the host program execution means of the host computer executes a predetermined program based on the second processing information transmitted from the data format conversion means of the server computer. The client computer, which has input the processing information which is the original information before the second processing information is divided by the processing information dividing means, executes an access procedure with the server computer accessed by the access releasing means. If the processing has been canceled, the processing result transmitting means sets the The processing result converted into a data format that can be displayed on the browser screen by the user format conversion unit is stored in association with the client computer that has input the processing information as the original information of the second processing information, and the client A network computer system, wherein the stored processing result is transmitted to the processing result receiving means of the client computer when the access of the computer is permitted again by the access permitting means of the server computer.