JP2000207331A - Processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processor the user of which can recognize proper processed results even when a network is in a congested state and which does not perform already completed processing. SOLUTION: A server system 130, which performs a prescribed processing based on a processing request given from a web client 110 through a network 120 and gives the processed results to the client 110, is provided with a cache server 134 which stores the past processed results and, when the same processing request as that given immediately before is given from the network 120, gives the processed results stored immediately before to the network 120 through a web server 101. When a request is made to the processing which is the same as the past processing and to which reprocessing is not approved is given from the network 120, in addition, the server 134 gives the processed results stored after the unapproved processing to the network 120 through the server 131.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a processing apparatus,
For example, the present invention is suitably applied to the server side of a system using a Web client / server having an application server (hereinafter, referred to as “Web computing”).

[0002]

2. Description of the Related Art FIG. 2 is a diagram showing a conventional configuration example of Web computing. Hereinafter, conventional Web computing will be briefly described with reference to FIG.

In FIG. 2, in a Web client 210, a processing request given by a user is transmitted to a server system 230 via a network 220 which is the Internet or an intranet. Server system 2
In 30, the processing request is received by the Web server 231 and given to the core system 233 via the application server 232. In the core system 233, processing is performed based on the processing request, and the processing result is provided to the application server 232. Here, in the application server 232, a Web page is created based on the given processing result, and is provided to the Web client via the network 220.

It is assumed that the application server 232 includes a CGI (Common Gateway Interface). The core system 233 is a system such as a database system, an accounting system, and an information system. Further, in FIG. 2, the Web server 231 and the application server 232 are separated for convenience, but they may be integrated functions.

[0005] Further, the Web page includes display of text and images, output of sound, execution of applications, and the like. The user indicates an operator of the Web client.

[0006]

However, the conventional Web computing described above has the following problems.

As a first problem, it is impossible to clarify the distinction between a first request and a retransmission request for a processing request from a user. Therefore, Web Client 2
All requests from 10 are always processed by the server system 230. Therefore, the processing request from the user has been executed in the server system 230 after the processing speed delay or the second processing request after the communication failure (it is unknown whether the first processing was successful). As a result Web Client 2
There is a problem in that the user using 10 receives only the second processing result, and the first processing result is processed only on the server side and cannot be recognized by the user.

In such a system, for example, when a system for specifying a room and making a reservation in the Internet hotel reservation system is constructed (1), a request from the second Web client results in an error, so that the user cannot make a hotel reservation. It will be mistaken as a failure (because the second reservation is the processing result, if the first reservation processing is successful, the second reservation processing will fail). Also,
(2) If the number of reservations, such as the World Cup watching tour reservation, is determined but a system that allows multiple reservations in succession is constructed, a system that allows the Web client to press the button as many times as necessary during the reservation process In this case, the Web client can press the button any number of times during the reservation process, so the tour ticket is purchased only by pressing the button. At this time, even if the user presses the button a plurality of times to actually purchase a plurality of tickets, even if the user presses the plurality of buttons for confirmation because the result display is slow on a low-speed line, for example, the user still receives one sheet. Since only the tour reservation completion screen for the minute can be confirmed, there is a problem that it is not possible to confirm what happened to the reservation other than the displayed reservation result. In order to solve this problem, it is possible in Web Computing to use a session management means such as Cookie to restrict the reservation process so that only one reservation can be made in one session. In this case, the session is cut off as a result of the processing request from the user for the second time or later, and the session will fail.Therefore, even if the user successfully completes the reservation with the first reservation processing request, There was a problem of recognizing failure. The term “session” used herein means that a Web client logs on to a target server system in order to perform one or more target processes, and completes the target process and then logs off as one unit. Catch and say the unit.

[0009] The second problem relates to a "Back" button for returning to the previous page in the Web browser. Web browser returns to the previous page The "Back" button provides a function to return to the previously processed page one by one when pressed. The term "processing" as used herein means that a user inputs data to one Web page in a Web client, transmits the data to a Web server, and receives page data in which a result is displayed. Therefore, in the above-described conventional configuration, it is possible to return to the “Back” button and start over the completed processing. Normally, such processing is not a problem when performing product search processing, but multiple pages such as product selection / purchase are regarded as a series of processing, and when processing is completed, return to the previous page and return to that page This can be problematic when creating a system that must be able to handle. Also, in the conventional method, there is a system that considers such a series of processing as one session, and displays an error page on a Web client when the session is completed or when processing is performed by returning to a previous page in the session. However, when using this method, the output result on the Web client of the successfully completed page before returning is discarded as an error page, so if a session failure occurs once, continue from the point of normal completion. There is a problem that can not be.

In the above description of the problem, the network 220 is the Internet or an intranet,
Although the present invention is applied to Web computing for transmitting a Web page described in HTML (Hyper-Text Markup Language) between a Web client 210 and a server system 220, the present invention is limited to the Internet or an intranet. Further, the present invention is not limited to the one described in HTML, and further focuses on the server system 230 having a problem, performs predetermined processing based on a processing request command given from a network, and outputs the processing result to the network. However, even a general processing apparatus having the above-mentioned configuration has the same problem.

For this reason, there has been a demand for a processing apparatus that allows a user to recognize a correct processing result even when the network is congested, and that does not perform processing that has been completed in the past.

[0012]

In order to solve the above-mentioned problems, according to the present invention, when a processing request command is given from a processing request source via a network, the processing means executes predetermined processing based on the processing request command. The processing device that performs the processing result and provides the processing result to the network includes: (1) a storage unit that stores at least a predetermined processing result of the past; A processing result output adjusting means for, when given, giving a predetermined past processing result stored in the storage means to the network and not giving a processing request command to the processing means.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a processing apparatus according to the present invention will be described.
An embodiment applied to Web computing will be described in detail with reference to the drawings.

(A) Description of Configuration FIG. 1 is a block diagram showing the configuration of Web computing of this embodiment. In FIG. 1, the Web computing includes a Web client 110 and a network (Internet or intranet) 120.
, Web server 131 and application server 132
And a server system 130 including a backbone system 133 and a cache server 134.

The Web client 110 is running a Web browser application, and runs on the server system 13.
0, and displays a Web page transmitted through the network 120. A user (operator) requests processing based on the Web page, and sends the processing request to the server system 30 via the network 20. What to send. It should be noted that this processing request includes session information having information such as the processing request made last time and the processing result.

The network 120 is the Internet or an intranet, that is, the Web client 110 and the server system 130 communicate with each other by HTML (Hype).
Web page written in r-Text Markup Language)
Communication is performed using HTTP (Hyper-Text Transfer Protocol). In addition, the Web page includes not only display of text and images, but also output of sound and execution of an application.

The server system 130 has the following components.

The Web server 131 is a cache server 1
The Web page from the Web server 34 is transmitted to the Web client 110 via the network 120, and the processing request transmitted from the Web client 110 via the network 120 is received and given to the cache server 134.

The application server 132 gives the processing request given from the cache server 134 to the backbone system 133, and creates a Web page for processing by the backbone system 133 and / or for a result of the processing. To give.

The core system 133 is, for example, a database system, a billing system, or an information system of a hotel reservation system or a ticket reservation system, and performs predetermined processing based on a processing request given from the application server 134. Here, the “processing” is processing performed by the core system 133 on one Web page created by the application server 132, and when there is the next processing and / or processing result,
This is transmitted from the backbone system 133 to the application server 132, and the application server 132 creates a Web page for the next processing, and performs the same operation.

The cache server 134 which is a feature of this embodiment includes: 1) automatic allocation of session information integrated with a plurality of pages, 2) automatic allocation of session information relating to a single page in a session, and 3) Web. Server 13
1) storing the result of processing the data processing request sent from the web client 110 via the application server 132 via the application server 132, and 4) storing the data processing request to the application server 132 for outputting a single page.
Setting of processing to use the information saved in 3) above (reload request enabling processing) when there is a request for the same data processing again in the same session (abbreviated as reload request), 5)
If the page output to the Web client 110 is returned to the previous state using the “Back” button on the Web client 110 and the processing is executed, the processing should be returned as an intermediate processing result in a series of processing up to that point Setting of a processing request for returning the processing result (checkpoint); 6) saving of the processing result in the application server when the above-mentioned checkpoint processing request is requested from the Web client 110; 7) Web server 131 If the data processing request from the Web client 110 is set to the reload request of the above 4) in response to the data processing request sent from the Web client 110 via 8) W to return application server processing result to Web server 131
In response to a data processing request sent from the Web client 110 via the eb server 131, the Web client 1
When the data processing request from 10 requests processing before the latest checkpoint specified in 5) above, the application server processing result saved when performing the checkpoint processing is returned to the Web server 131. Have these eight functions.

(B) Description of Operation Next, the operation of the Web computing having the above configuration will be described with reference to FIGS.

In FIG. 1, first, the Web client 1
10, the Web server 131 via the network 120
Is transmitted (SP1), and the Web server 131 receives the processing request and gives it to the cache server 134 (SP2).

Here, based on the given processing request and the session information included in the processing request, the cache server 131 determines if the current processing request and the previous processing request contained in the session information are the same, It is determined that the given processing request is a reload request and the latest application server 13 stored in the cache server 134
2 is given to the Web server 131 (S
P3). Also, the previous page is displayed when the previous processing request included in the session information is earlier than the current processing request.
If the processing request is “Back” and the current processing request is a processing request even earlier than the latest checkpoint, the processing result in which the checkpoint stored in the cache server 134 is set is given to the Web server 131 ( SP
3). On the other hand, except for these cases, the given processing request is given to the application server 132 (SP
4).

In the application server 132, the given processing request is given to the backbone system 133 (SP
5) In the core system 133, predetermined processing is performed based on the processing request, and the processing result is given to the application server 132 (SP6), and the application server 132 creates a Web page based on the processing result. To the cache server 134.

In the cache server 134, the Web page of the given processing result is stored and the Web server 1
31 (SP8), and transmitted to the Web client 110 via the network 120 in the Web server 131 (SP9).

FIG. 3 is a flowchart showing a detailed operation of the cache server 134 which is a feature of this embodiment.

In FIG. 3, when data is received from the Web server 131 (SP10), a processing request is extracted from the data (SP11), and session information is extracted from the processing request (SP12).

Here, in the cache server 131, based on the extracted processing request and the session information, if the current processing request and the previous processing request included in the session information are the same, the given processing request is Assuming that the request is a reload request, the latest processing result from the application server 132 stored in the cache server 134 is W
This is given to the eb server 131 ("Yes" in SP13).

In a case other than the above case ("No" in SP13), the previous processing request included in the session information is earlier than the current processing request, and the previous page is displayed.
k ”, and if the current processing request is a processing that is further before the latest checkpoint, the processing result in which the checkpoint stored in the cache server 134 is set is given to the Web server 131 (SP14). "Yes").

In other cases ("No" in SP14), the given processing request is given to the application server 132 and the processing result is given (SP15).
The latest processing result is stored and given to the Web server 131 (SP16).

The processing result given to the Web server 131 in this manner is transmitted to the Web client 110 via the network 120 (SP17). (C) Description of Effect As described above, this embodiment is described. According to the conventional Web
For computing, the cache server 134
Is added, and the processing result of the application server 132 is stored in the cache server 134. The processing request of the application server 132 stored in the cache server 134 is stored for the processing request that meets the set condition by providing the reload requestable processing. Since the data using the result is transmitted to the Web client 110, the problem of the Web client not displaying the first processing result caused by a communication failure or an operation error of the Web client user is solved.

According to this embodiment, a check point is provided in the cache server 134,
If processing before the condition set in the session is requested, data using the checkpoint processing result is transmitted to the Web client 110, so that once a session failure occurs, processing that has been completed normally can be continued. The problem of disappearance is solved. When the last process of a session is set as a checkpoint, the result of the previous session can be referred to even if the session is completed, unless a new same session is generated.

(D) Another Embodiment In the above embodiment, the network 120 is the Internet or an intranet, and the Web client 11
Although the present invention is applied to the Web computing for transmitting the Web page between the Web server 0 and the server system 130, the present invention is not limited to the Internet or the intranet, and is not limited to the Web page. Other networks such as Ethernet used in company LAN (Local Area Network), and CSMA
The present invention can be similarly applied to a system for transmitting data such as text and images in the / CD system, and the present invention can be similarly applied to other network systems of another data link system. . In this case, W
The application server 132 for creating an eb page need not be provided, and the web server 131 is an interface device of the network.

In the above-described embodiment, the present invention is applied to the server system 130. However, a predetermined process is performed based on a processing request command given from the network, and the processing result is provided to the network. The present invention can be similarly applied to a general processing apparatus.

Further, in the above embodiment, the session request is included in the processing request from the Web client 110, and the main processing request information and the preprocessing request information of the session information in the cache server 134 are the same. Although the one that identifies that it is the same as the immediately preceding processing request is shown, for example, the cache server 134 stores the immediately preceding processing request, and the stored immediately preceding processing request is the same as the currently given processing request. It may be identified by a certain thing, or another method may be used.

Furthermore, in the above-described embodiment, the network 120 has one Web client 110 and one server system 120. However, a plurality of Web clients and server systems may be provided. .

In the above embodiment, the session information having only the previous processing request information is shown.
It also has past processing request information (it may be a time stamp), sets a point at which past processing cannot be performed in those past processing request information groups, and the cache server 134 It may be possible to discriminate whether or not a given processing request is before a set point based on the information.

Further, in the above-described embodiment, it is determined whether or not the processing request given from the cache server 134 to the core system 133 via the application server 132 includes session information that is not directly related to the actual processing request (this processing request). Although not particularly specified, the cache server 134 or the application server 132 may remove the session information and give only this processing request to the core system. Alternatively, the session information may be given to the core system 133 without removing the session information. Alternatively, in the core system 133, for example, in the processing based on the processing request, the processing performed last time may be referred to.

[0040]

As described above, according to the present invention, when a processing request command is given from a processing request source via a network, the processing means performs predetermined processing based on the processing request command, and In a processing apparatus for providing a result to a network, (1) storage means for storing at least a predetermined processing result in the past, and (2) when a processing request command identical to a processing request command given in the past from the network is provided. A processing result output adjusting means for giving a predetermined processing result in the past stored in the storage means to the network and not giving the processing request command to the processing means.
When the storage unit stores the immediately preceding processing result, and the processing result output adjusting unit receives the same processing request command as the processing request command received immediately before from the network,
If the processing result immediately before being stored in the storage means is given to the network and the processing request command is not given to the processing means, the user can recognize the correct processing result even if the network is in a congested state or a communication failure. In this case, even if the user performs the same operation twice in succession due to an operation error, the operation error can be avoided.

Further, according to the present invention, the storage means comprises:
The processing result by the processing after the past processing group that is not permitted to be performed again is stored, and the processing result output adjusting means stores the same processing request command given from the network as in the past, and the storage means stores the processing request command. If the processing result is further past than the past processing request command corresponding to the processing result, the processing result stored in the storage unit is given to the network, and the given processing request command is not given to the processing unit,
Even when a past processing request command that is not permitted to be performed again is given, a processing result after (immediately after) is given and the processing of the processing request command can be prevented from being performed.

[Brief description of the drawings]

FIG. 1 is a diagram showing configuration blocks of Web computing according to an embodiment and a processing procedure thereof.

FIG. 2 is a block diagram illustrating a configuration example of conventional Web computing.

FIG. 3 is a flowchart illustrating a detailed operation of the cache server 134 according to the embodiment.

[Explanation of symbols]

110: Web client, 120: Network, 1
30 ... server system, 131 ... Web server, 134 ...
Cache server.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04L 12/58 12/56 F-term (Reference) 5B082 FA12 5B089 GA11 GA21 GB01 GB03 GB04 HA10 JB02 JB03 JB05 JB18 KA12 KD05 LB04 LB14 5K030 HC01 HC14 KA01 KA06 LB15 5K033 AA02 AA03 BA04 CB02 DB12 DB14 9A001 BB03 BB04 CC07 DD10 JJ25 LL03

Claims (7)

[Claims] When a processing request command is given from a processing request source via a network, a processing unit performs a predetermined process based on the processing request command, and provides a processing result to the network. A predetermined processing result stored in the storage means, and a predetermined processing result command stored in the storage means is stored in the network when a processing request command identical to a processing request command given in the past is given from the network. A processing result output adjusting means for giving the processing request command to the processing means. 2. The predetermined processing result stored in said storage means is a processing result immediately before being given to a network, and said processing result output adjusting means is the same processing as a processing request command given immediately before from a network. 2. The processing apparatus according to claim 1, wherein when a request command is given, a processing result immediately before being stored in the storage unit is given to a network, and the processing request command is not given to the processing unit. 3. The one processing request command includes at least a main processing request requested by the processing request command and a pre-processing request requested immediately before the processing request command. Means, when the main processing request and the preprocessing request of the given processing request command are the same,
3. The processing apparatus according to claim 2, wherein the processing request command given from the network and the processing request command given immediately before are regarded as the same. 4. The predetermined processing result stored in the storage means is a processing result obtained by a processing subsequent to a past processing group which is not permitted to be performed again. If the same processing request command as the past is further past than the past processing request command corresponding to the predetermined processing result stored in the storage unit, the predetermined processing result in the past stored in the storage unit is stored. The processing apparatus according to claim 1, wherein the processing device is provided to the network, and the provided processing request command is not provided to the processing unit. 5. The past predetermined processing result stored in the storage means is a processing result based on a last processing request command in a past related processing request command group, and the processing result output adjusting means includes a network. If the same processing request command given in the past is given further past than the past processing request command corresponding to the predetermined processing result stored in the storage means, the predetermined predetermined processing stored in the storage means is stored. 2. The processing apparatus according to claim 1, wherein a result is provided to the network, and the provided processing request command is not provided to the processing unit. 6. A processing result given to the network,
6. The processing apparatus according to claim 1, further comprising a conversion unit that converts the information into information having a high user interface and provides the information to a network. 7. The processing apparatus according to claim 6, wherein the network is the Internet or an intranet, and the information converted by the conversion unit is hypertext information.