JP2002373149A - Simultaneous access method, request processing server, proxy server, client terminal, simultaneous access control program and storage medium having the same program stored thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously perform access to a plurality of servers in one session. SOLUTION: A plurality of requests (unit requests) from a client to a server are transmitted in a batch. Also, when a proxy server is present between the client and the server, the client transmits a plurality of requests to a plurality of servers to the proxy server in batch, and the proxy server which receives those requests separates the requests to each server, and transmits the request to each server in a batch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous access method, a request processing server, a proxy server, a client terminal, a simultaneous access control program, and a storage medium storing the simultaneous access control program. The present invention relates to a simultaneous access method for simultaneous connection, a request processing server, a proxy server, a client terminal, a simultaneous access control program, and a storage medium storing the simultaneous access control program.

[0002]

2. Description of the Related Art FIG. 10 is a diagram showing an example of a conventional simultaneous access method to multiple servers.

In the system shown in FIG.
When the client 2 communicates with the server 4, the client 2 establishes a communication session with the server 4 and makes a request (hereinafter referred to as a unit request 29).
Is sent). Then, the server 4 checks the access right of the client 2 from the received unit request 29, performs a process according to the unit request 29, and transmits a unit response 30 including the processing result to the client 2. For example, in the WEB of the Internet, http is set for communication between the client 2 and the server 4 and UR is set.
A unit request including L is transmitted from the client 2 to the server 4, and a unit response including html is transmitted from the server 4 to the client 2.

[0004] As described above, when a client accesses to connect to a large number of servers at the same time, the client uses a communication session for each server. The server checks the access right for each unit request. Then, the server transmits a unit response to the client.

[0005]

However, when a client attempts to simultaneously connect to a large number of servers (hereinafter, referred to as servers), the client needs to use a large number of sessions since the client establishes a communication session for each server. There is.

Further, each server needs to check the access right of the client for each unit request.

Further, when a unit response is transmitted from a server to a client, transmission of the unit response is concentrated on a large number of servers to the client, so that a bandwidth of an NW (network) cannot be obtained, or the reception performance of the unit response of the client. Is reduced.

Further, the server needs to use the same number of communication sessions in order to accept unit requests from a plurality of clients. Thus, there is a problem that the number of unit requests that can be simultaneously accepted by the server is not the number of unit requests that can be processed from the viewpoint of the processing performance of the server, but becomes the limit number of sessions of the server. This is a particular problem when the client uses a general-purpose HTTP protocol for communication.

The present invention has been made in view of the above points, and has a simultaneous access method, a request processing server, a proxy server, a client terminal, a simultaneous access control program, and a simultaneous access method capable of simultaneously accessing multiple servers in one session. An object is to provide a storage medium storing a simultaneous access control program.

[0010]

FIG. 1 is a diagram for explaining the principle of the present invention.

According to the present invention (claim 1), in a simultaneous access method for simultaneously accessing a number of servers connected from a network from a client terminal, the client terminal transmits a unit request which is information including one piece of URL information. A request for storing at least one request is created (step 1), the created request is transmitted to the server (step 2), a response corresponding to the request is received from the server (step 3), and a unit response is received from the received response. Is extracted (step 4).

According to the present invention (claim 2), when the processing result information included in the unit response including the processing result information identified by the processing result of the unit request is successful, it is displayed on the screen and failed. If not, do not display it on the screen.

According to a third aspect of the present invention, there is provided a simultaneous access method for simultaneously accessing a plurality of servers connected via a network from a client terminal, wherein the server transmits at least a unit request which is information including one piece of URL information. A request for storing one or more requests is received, the request is divided into unit requests, the divided unit requests are registered in a schedule, the unit requests registered in the schedule are read out, and processing for the unit requests is performed. , Create a unit response, create one response from the unit response, and send the response.

According to the present invention (claim 4), the number of unit requests included in a request is compared with an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, registration to the schedule is made. Instead, a response storing error information indicating that the value has exceeded the upper limit is transmitted.

According to a fifth aspect of the present invention, there is provided a simultaneous access method for simultaneously accessing a plurality of servers connected via a network from a client terminal, a load distribution device connected to the server and the client terminal,
A request for storing at least one unit request, which is information including a client ID for identifying a client terminal and one piece of URL information, is received from a client, the received request is divided into unit requests, and the divided unit requests are Register in the schedule, read one or more unit requests registered in the schedule, create a request from the unit request, send the created request to the server, and include the client ID corresponding to the request from the server Receiving the response,
Extracting a unit response from the response, creating a response by selecting a unit response having the same client ID from the unit response,
Send the response to the client terminal.

According to the present invention (claim 6), the number of unit requests included in a request is compared with an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, a unit response is added to the schedule. Without registering, a response storing error information indicating that the value exceeds the upper limit is transmitted to the client terminal.

FIG. 2 is a diagram showing the principle of the present invention.

The present invention (claim 7) is a client terminal 2 for simultaneously accessing a large number of servers connected via a network, and stores at least one unit request which is information including one piece of URL information. Request creating means 9 for creating a request to be made, request sending means 10 for sending the created request to the server, response receiving means 11 for receiving a response corresponding to the request from the server, and extracting a unit response from the received response And a unit response extracting unit 12 that performs

According to the present invention (claim 8), when the processing result information included in the unit response including the processing result information identified by the processing result of the unit request is successful, it is displayed on the screen and the failure is displayed. Display means that does not display on the screen in the event that the error occurs.

The present invention (claim 9) is a request processing server connected from a client terminal via a network, the request processing server receiving a request for storing at least one unit request which is information including one piece of URL information. A receiving unit, a request dividing unit for dividing the request into unit requests, a schedule managing unit for registering the divided unit requests in a schedule, and reading out the unit requests registered in the schedule, and a process for the unit requests. The system includes a unit request processing unit for generating a unit response, a response generating unit for generating one response from the unit response, and a response transmitting unit for transmitting the response.

According to the present invention (claim 10), in the request dividing means, the number of unit requests included in the request is compared with an upper limit of a predetermined number of unit requests. A means for passing error information to the effect that the value has exceeded the upper limit without registering in the schedule is included, and a means for transmitting a response storing the error information is included in the response transmitting means.

The present invention (claim 11) is a proxy server for simultaneously accessing a large number of servers connected from a client terminal via a network, wherein the client I identifies the client terminal from the client.
D: a request receiving unit for receiving a request for storing at least one unit request which is information including one piece of URL information; a request dividing unit for dividing the received request into unit requests; and a schedule for dividing the divided unit requests. , A request management unit that reads one or more unit requests registered in the schedule, a request creation unit that creates one request from the unit requests acquired from the schedule management unit, and a request creation unit that creates the request. Request transmitting means for transmitting a request to the server, a response receiving means for receiving a response including a client ID corresponding to the request from the server, a unit response extracting means for extracting a unit response from the response, and a same client ID from the unit response Creation means for creating a response by selecting a unit response having a response, and sending a response to the client terminal And a stage.

According to the present invention (claim 12), in the request dividing means, the number of unit requests included in the request is compared with an upper limit value of a predetermined number of unit requests. A unit that passes error information to the effect that the value exceeds the upper limit without registering a unit response in the schedule is included, and a response transmitting unit includes a unit that transmits a response storing the error information to the client terminal.

According to a thirteenth aspect of the present invention, there is provided a simultaneous access control program to be executed by a client terminal for simultaneously accessing a large number of servers connected via a network, wherein the unit request is information including one piece of URL information. Request creating process for creating a request for storing at least one or more of the following, a request sending process for sending the created request to the server, a response receiving process for receiving a response corresponding to the request from the server, and a unit based on the received response. Unit response extraction process for extracting a response.

According to the present invention (claim 14), when the processing result information included in the unit response including the processing result information identified by the processing result of the unit request is successful, it is displayed on the screen and failed. In some cases, a display process that does not display on the screen is further provided.

The present invention (Claim 15) is a simultaneous access control program to be executed by a request processing server connected from a client terminal via a network.
A request receiving process for receiving a request for storing at least one unit request as information including RL information, a request dividing process for dividing the request into unit requests, and registering the divided unit requests in a schedule A schedule management process for reading a unit request registered in the schedule, a unit request processing process for processing the unit request and creating a unit response, a response creating process for creating one response from the unit response, And a response transmission process for transmitting.

According to the present invention (claim 16), in the request dividing process, the number of unit requests included in the request is compared with an upper limit value of a predetermined number of unit requests. The method includes a process of not passing registration information to the schedule and passing error information indicating that the upper limit value has been exceeded, and a process of transmitting a response storing the error information in a response transmission process.

The present invention (claim 17) is a simultaneous access control program to be executed by a proxy server for simultaneously accessing a large number of servers connected to a network from a client terminal, wherein the client terminal is identified from the client. Client ID and one U
A request receiving process for receiving a request for storing at least one unit request that is information including RL information, a request dividing process for dividing the received request into unit requests, and registering the divided unit requests in a schedule; A schedule management process for reading one or more unit requests registered in the schedule, a request creation process for creating one request from the unit requests acquired from the schedule management process, and a server for sending the request created by the request creation process to the server. , A response receiving process for receiving a response including a client ID corresponding to the request from the server, a unit response extracting process for extracting a unit response from the response, and a same client ID from the unit response
And a response transmission process for transmitting a response to a client terminal by selecting a unit response having the following.

According to the present invention (claim 18), in the request dividing process, the number of unit requests included in the request is compared with an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, The method includes a process of transmitting error information indicating that the upper limit is exceeded without registering a unit response in the schedule, and a process of transmitting a response storing the error information to the client terminal in the response transmission process. According to the present invention (claim 19), in order for a client terminal to simultaneously access a large number of servers connected via a network, any one of the client terminal, the server, and a proxy server located between the client terminal and the server is required. A storage medium storing a simultaneous access control program to be executed, wherein the storage medium stores the simultaneous access control program according to claim 13 to claim 18.

As described above, according to the present invention, when a client terminal accesses a large number of servers simultaneously,
The client terminal transmits a client request including one or more unit requests to the server, and receives a client response including one or more unit responses from the server,
It is possible to access multiple servers simultaneously in one session.

In the present invention, the client terminal comprises:
Each time a client response is received, a unit response is extracted,
By displaying, it is possible to display on the screen in order from the response of the completed unit request without waiting until the processing of all the unit requests is completed.

Further, according to the present invention, upon receiving the request, the server divides the request into unit requests, registers the schedule, performs processing of the unit request each time the unit request is read from the schedule, and creates a unit response. By creating a response from the unit response and transmitting the response, it is possible to return the response in order from the response of the completed unit request without waiting for the processing of all the unit requests to be completed Become.

Also, in the present invention, upon receiving a request from a client terminal, the proxy server (load distribution device) divides the request into unit requests, registers the unit requests on a schedule, and sends one or more unit requests from the schedule. By reading, creating a request from them, and sending the request to the server, it is possible to collectively send unit requests of a plurality of clients to the server. Further, when a response is received from the server, a unit response is extracted from the response, a response is created from the unit response having the same client ID,
By sending a response, without waiting for the processing of all unit requests to be received, in order from the received unit requests,
It is possible to return a response to the client terminal.

Also, in the present invention, the server compares the number of unit requests included in the request with the upper limit of the predetermined number of unit requests, and if the upper limit is exceeded, the server sets the upper limit of the number of unit requests. By transmitting a response storing the error information indicating that the error has been exceeded, it is possible to prevent unauthorized requests from the client terminal and the load distribution device.

Further, in the present invention, the load distribution device compares the number of unit requests included in the request with the upper limit of the predetermined number of unit requests, and when the number exceeds the upper limit, the upper limit of the number of unit requests is determined. By transmitting a response storing error information indicating that the value has been exceeded to the client terminal, it is possible to prevent an unauthorized request from the client terminal.

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, when transmitting a client request from a client terminal to a server, a plurality of requests (unit requests) are combined into one and transmitted in one session.
At this time, when a proxy server (hereinafter, referred to as a load distribution device) intervenes between the client terminal and the server (request processing server), the client terminal transmits a unit request to a plurality of request processing servers. One request (client request) is collectively transmitted to the load distribution device, and the load distribution device distributes the request for each server, and collectively transmits the requests for each server to the request processing server.

FIG. 3 is a diagram for explaining a simultaneous access method to multiple servers according to an embodiment of the present invention.

The system shown in FIG. 1 comprises a client terminal 2, a load distribution device 3, a server 4, and a computer network 1 connecting these.

Although only one server 4 is shown in the computer network 1, it is assumed that a plurality of servers 4 are actually connected.

In FIG. 1, a client request 5 issued from a client terminal 2 is transmitted to a load distribution device 3 via a computer network 1, and the load distribution device 3 transmits a server request 7 to a server 4. The server 4 transmits a server response 8 corresponding to the server request 4 to the load distribution device 3, and the load distribution device 3 transmits a client response 6 to the client terminal 2.

FIG. 4 shows the configuration of each device in one embodiment of the present invention, and FIG. 5 is a diagram for explaining each request in one embodiment of the present invention.

First, the client terminal 2 will be described.

FIG. 6 shows a configuration of a client terminal according to an embodiment of the present invention.

The client terminal 2 shown in FIG. 1 comprises a request creating unit 9, a request transmitting unit 10, a response receiving unit 11, a unit response extracting unit 12, and a unit response display unit 13.

As shown in FIG. 5, the client request 5 includes one or more unit requests 3 having the same client ID.
7 and each unit request 37 includes a URL. More specifically, the unit request 37 includes a client ID, a page ID, an image compression method (bmp, jpeg), a timeout, and a URL.

The request creating unit 9 creates a plurality of unit requests from the file, combines them into one request, creates a client request 5, and passes the client request 5 to the request transmitting unit 10. Here, the file is a file written by the user or obtained from the Internet.

The request transmitting section 10 transmits the client request 5 received from the request creating section 9 to the load distribution device 3 or the server 4.

The response receiving section 11 receives a client response 6 corresponding to the request from the transmission destination of the client request 5 (the load distribution device 3 or the server 4). When the client response 6 is received, the unit response is extracted from the client response 6 to the unit response extracting unit 12, and the unit response is passed to the unit response display unit 13. The unit response extraction method is
For example, when the response 6 is written in the Multipart format, boundary information is inserted between consecutive unit responses in the response, and the boundary information is extracted from the boundary information as a unit response. .

The unit response display unit 13 is a unit response extraction unit 1
2, the unit response is received, and if the processing result included in the unit response is “failure”, the unit response is not displayed,
If "successful", display the unit response.

Next, the server 4 will be described.

FIG. 7 shows a configuration of a server according to an embodiment of the present invention.

The server 4 shown in FIG.
It comprises a request division unit 24, a schedule management unit 25, a unit request processing unit 26, a response creation unit 27, and a response transmission unit 28.

[0053] The request receiving section 23 comprises a client terminal 2,
Alternatively, a request (the client request 5 or the server request 7) is received from the load distribution device 3, and the request is passed to the request dividing unit 24.

The request dividing unit 24 receives a request from the request receiving unit 23 and divides the request into unit requests. At this time,
When the number of unit requests exceeds the upper limit of the predetermined unit requests, error information indicating that the number of unit requests exceeds the upper limit is returned to the response transmitting unit 28. When the number of unit requests does not exceed the predetermined upper limit of the unit requests, all the unit requests are passed to the schedule management unit 25.

The schedule management unit 25 includes the request division unit 2
4, a plurality of unit requests are received, and the unit requests are registered in a schedule. Then, the unit request is read from the schedule, and the read unit request is passed to the unit request processing unit 26. As a method of reading a unit request from a schedule, for example, there is a method of determining the number of processing processes to be executed at the same time, managing whether each process is vacant or in process, and reading a unit request when vacant. .

The unit request processing unit 26 receives one unit request from the schedule management unit 25, processes the unit request, and creates a unit response. For details of the unit request processing, an html file is obtained from the URL included in the unit request from the Internet, and the html file is converted into an image format (bm
(p, jpeg) to form an image (rasterization).

The response creating unit 27 receives the unit response from the unit request processing unit 26 and creates one server response 8 from one or more unit responses at regular intervals. Further, when receiving the error information from the request division unit 24, the server response unit 8 creates a server response 8 storing the error information. Server response 8 created
Is passed to the response transmission unit 28.

The response transmitting unit 28 receives the server response 8 from the response creating unit 27, and transmits the server response 8 to the client terminal 2 or the load distribution device 3 that has transmitted the request.

Next, the load distribution device 3 will be described.

FIG. 8 shows a configuration of a load distribution device according to an embodiment of the present invention.

The load distribution device 3 shown in FIG. 1 includes a request receiving unit 14, a request dividing unit 15, a schedule managing unit 16, a request creating unit 17, a request transmitting unit 18, a response receiving unit 19, a unit response extracting unit 20, a response It comprises a creating unit 21 and a response transmitting unit 22.

The request receiving unit 14 receives the client request 5 composed of a plurality of unit requests from the client terminal 2 and passes the request 5 to the request dividing unit 15.

The request dividing unit 15 receives the request 5 from the request receiving unit 14, and divides the request 5 into unit requests. At this time, if the number of unit requests exceeds the upper limit of the predetermined unit request, error information indicating that the number of unit requests exceeds the upper limit is passed to the response creating unit 21. When the number of unit requests does not exceed the predetermined upper limit of the unit requests, all the unit requests are passed to the schedule management unit 16.

The schedule management unit 16 includes the request division unit 1
5, one or more unit requests are received, and the unit requests are registered in a schedule. Then, one or more unit requests are read from the schedule, and the read unit requests are passed to the request creating unit 17. As a method of reading a unit request from a schedule, for example, there is a method of reading a unit request at the same probability for each client at regular time intervals.

The request creating unit 17 is a schedule managing unit 1
6, one or more unit requests are received, a request is created from the unit requests, and the request is sent to the request transmitting unit 18.

The request transmitting section 18 receives the request from the request creating section 17 and transmits the request to the server 4.

The request receiving unit 19 receives the server response 8 from the server 4 and passes it to the unit response extracting unit 20.

When receiving the server response 8 from the request receiving unit 19, the unit response extracting unit 20 extracts a unit response from the response 8 and passes the unit response to the response creating unit 21. The unit response extraction method is, for example, if the response is written in the Multipart format, the boun
By inserting dary information, bo
Extract between the undary information as a unit response. The response creating unit 21 receives the unit response from the unit response extracting unit 20, classifies the unit response for each client ID included in the unit response, and creates the client response 6 from the classified unit response. Further, when receiving the error information from the request division unit 15, the client response unit 6 creates a client response 6 storing the error information. Client response 6 created
Is passed to the response transmission unit 22.

Upon receiving the client response 6 from the response creating unit 27, the response transmitting unit 22 transmits the received client response 6 to the designated client terminal 2.

Next, the operation of the above configuration will be described.

FIG. 9 is a sequence chart of a process for simultaneously accessing multiple servers according to an embodiment of the present invention.

Step 101) The request creating section 9 of the client terminal 2 creates a request from a file and passes the client request 5 to the request sending section 10. The file is written by the user or obtained from the Internet.

Step 102) The request transmitting section 10 of the client terminal 2 transmits the client request 5 received from the request creating section 9 to the load distribution device 3.

Step 103) The request receiving section 14 of the load distribution device 3 receives the client request 5 from the client terminal 2 and passes it to the request dividing section 15.

Step 104) The request dividing unit 15 of the load distribution apparatus 3 sends the client request 5 from the request receiving unit 14.
And divide it into unit requests.

Step 105) If the number of unit requests divided from the client request 5 exceeds the upper limit of a predetermined unit request, error response information indicating that the number of unit requests exceeds the upper limit is sent to the response creating unit. Hand over to 21 and step 1
Move to 24. When the number of unit requests does not exceed the predetermined upper limit of the unit requests, all the unit requests are passed to the schedule management unit 16.

Step 106) The response transmitting section 22 of the load distribution device 3 transmits the response header storing the boundary information to the response receiving section 11 of the client terminal 2.

Step 107) The response receiving section 11 of the client terminal 2 receives the response header from the load distribution device 3, and determines the boundary information.

Step 108) The schedule management unit 16 of the load distribution device 3 receives one or more unit requests from the request division unit 15, and registers the unit requests in the schedule.

Step 109) The schedule management unit 16 of the load distribution device 3 reads one or more unit requests from the schedule, and passes the read unit requests to the request creation unit 17. As a method of reading a unit request from a schedule, for example, there is a method of reading a unit request at the same probability for each client at regular time intervals.

Step 110) The request creating unit 17 of the load distribution device 3 receives one or more unit requests from the schedule management unit 16, creates a request from the unit requests, and passes it to the request transmitting unit 18.

Step 111) The request transmitting section 18 of the load distribution device 3 receives the request from the request creating section 17 and transmits the server request 7 to the server 4.

Step 112) The request receiving section 23 of the server 4 receives the server request 7 from the load distribution device 3 and passes the request to the request dividing section 24.

Step 113) The request dividing section 24 of the server 4 receives the request from the request receiving section 23 and divides the request into unit requests.

Step 114) If the number of unit requests exceeds the upper limit of a predetermined unit request, the response creating unit 27 sends error information indicating that the number of unit requests exceeds the upper limit.
To step 120. If the number of unit requests is
If the upper limit of the predetermined unit request is not exceeded, all the unit requests are passed to the schedule management unit 25.

Step 115) The response transmitting unit 29 transmits a response header storing boundary information to the load distribution device 3.

Step 116) Schedule management unit 2
5 receives a plurality of unit requests from the request division unit 24,
The unit request is registered in the schedule.

Step 117) The response receiving section 19 of the load distribution device 3 receives the response header from the server 4 and
Confirm dary information.

Step 118) Schedule management unit 2
5 reads the unit request from the schedule and passes the read unit request to the unit request processing unit 26. As a method of reading a unit request from a schedule, for example, there is a method of determining the number of processing processes to be executed at the same time, managing whether each process is vacant or in process, and reading a unit request when vacant.

Step 119) Unit request processing unit 26
Receives one unit request from the schedule management unit 25, processes the unit request, and creates a unit response. For details of the processing of the unit request, refer to the URL included in the unit request.
From the Internet, and generates an image of the html file according to the image format (bmp, jpeg) included in the unit request (rasterization).

Step 120) The response creating unit 27 receives the unit response from the unit request processing unit 26, and creates the server response 8 from one or more unit responses at regular intervals. When receiving the error information from the request dividing unit 24, the server response 8 storing the error information is created. The created response is passed to the response transmission unit 28.

Step 121) The response transmitting unit 28 receives the server response 8 from the response creating unit 27, and sends the request to the client terminal 2 or the load distribution device 3
To the response 8.

Step 122) The response receiving section 19 of the load distribution device 3 receives the server response 8 from the server 4 and passes the response to the unit response extracting section 20.

Step 123) Unit response extraction unit 20
Receives the server response 8 from the request receiving unit 19, extracts a unit response from the response 8, and passes the unit response to the response creating unit 21. The unit response extraction method is, for example, when the response is Mu
When written in the ltipart format, boundary information is inserted between successive unit responses in the response, so that the boundary information is extracted from the boundary information as a unit response.

Step 124) The response creating unit 21 receives the unit response from the unit response extracting unit 20, classifies the unit response for each client ID included in the unit response, and converts the classified unit response into the client response 6 Create When receiving the error information from the request division unit 15, the client response unit 6 creates a client response 6 storing the error information. The created client response 6 is passed to the response transmission unit 22.

Step 125) Upon receiving the client response 6 from the response creating unit 21, the response transmitting unit 22 transmits it to the designated client terminal 2.

Step 126) The response receiving section 11 receives the client response 6 from the load distribution device 3. When the client response 6 is received, the response 6 is passed to the unit response extraction unit 12.

Step 127) Unit response extraction unit 12
When the client response 6 is received from the request receiving unit 11, the unit response is extracted from the response 6, and the unit response is passed to the unit response display unit 13. The unit response extraction method is, for example,
When the response is written in the Multipart format, boundary information is inserted between successive unit responses in the response, so that the boundary information is extracted from the boundary information as a unit response.

Step 128) Unit response display section 13
Receives the unit response from the unit response extraction unit 12, does not display the unit response when the processing result included in the unit response is unsuccessful, and shifts to step 129 when the processing result is successful.

Step 129) Unit response display section 13
Displays the unit response on the screen.

Further, in the above embodiment, the client terminal, the load distribution device and the server shown in FIGS. 4 and 6 to 8 have been described, but the components of each device perform the processing shown in FIG. It can be constructed as a simultaneous access control program and installed on the CPU of a computer used as a client terminal, a load distribution device, and a server, or can be distributed via a network.

Further, the constructed simultaneous access control program is stored in a portable storage medium such as a hard disk connected to a client terminal, a load distribution device, and a computer used as a server, a floppy (registered trademark) disk, and a CD-ROM. The present invention can be easily realized by storing it and installing it when implementing the present invention.

The present invention is not limited to the above-described embodiment, but can be variously modified and applied within the scope of the claims.

[0104]

As described above, according to the present invention, a client transmits a client request including one or more unit requests to a server and receives a client response including one or more unit responses from the server. Thereby, multiple servers can be simultaneously accessed in one session.

Further, upon receiving the request, the server divides the request into unit requests, registers the schedule, and processes the unit request each time the unit request is read from the schedule.
By creating a unit response, creating one response from multiple unit responses, and sending it, the response is processed in order from the response of the completed unit request without waiting for the processing of all unit requests to be completed. Can be returned.

Upon receiving the request from the client terminal, the load distribution device divides the request into unit requests, registers the unit requests on a schedule, reads one or more unit requests from the schedule, and creates one request from the schedule. By transmitting the request to the server, it becomes possible to collectively transmit the unit requests of a plurality of clients to the server. Furthermore, when a response is received from the server, a unit response can be extracted from the response, and a response can be created and transmitted from the unit response having the same client ID.

Each time the client terminal receives a client response, it extracts and displays the unit response. This allows you to wait until all unit requests have been processed,
The response can be displayed on the monitor screen of the terminal in order from the response of the unit request for which the processing has been completed, and the display response performance to the user can be improved.

The number of unit requests that can be simultaneously accepted by the server and the load distribution device can be not limited to the respective number of sessions but can be the number of unit requests that can be processed from the viewpoint of processing performance (unit requests equal to or more than the limited number of sessions) Can be accepted).

Further, since all the responses from the server are transmitted to the client via one load distribution device, transmission of the unit response does not concentrate on the client. Therefore, the bandwidth of the NW (network) on the client side is secured, and the reception performance of the unit response of the client does not decrease.

By transmitting a client request composed of one or more unit responses and receiving a client response composed of one or more unit responses, even if the client accesses multiple servers simultaneously, one client Just use the session.

Further, since the load distribution apparatus performs one or more unit requests and unit responses at one time by receiving a request from a client and receiving a response to the client, it is necessary to check the access right of the same client. You only need to do it once.

The server compares the number of unit requests included in the request with the upper limit of the number of unit requests. If the upper limit is exceeded, the server sends error information indicating that the upper limit of the number of unit requests has been exceeded. By transmitting the stored response, an unauthorized request from the client terminal or the load distribution device can be prevented.

The load balancer compares the number of unit requests included in the request with the upper limit of the number of unit requests. If the upper limit is exceeded, an error indicating that the upper limit of the number of unit requests has been exceeded is obtained. By transmitting the response storing the information to the client terminal, it is possible to prevent an unauthorized request from the client terminal.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the principle of the present invention.

FIG. 2 is a principle configuration diagram of the present invention.

FIG. 3 is a diagram for explaining a method of simultaneously accessing multiple servers according to an embodiment of the present invention.

FIG. 4 is a configuration diagram of each device according to an embodiment of the present invention.

FIG. 5 is a diagram illustrating an example of a request according to an embodiment of the present invention.

FIG. 6 is a configuration diagram of a client terminal according to an embodiment of the present invention.

FIG. 7 is a configuration diagram of a server according to an embodiment of the present invention.

FIG. 8 is a configuration diagram of a load distribution device according to an embodiment of the present invention.

FIG. 9 is a sequence chart of a process for simultaneously accessing multiple servers according to an embodiment of the present invention.

FIG. 10 is a diagram showing an example of a conventional simultaneous access method to multiple servers.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 computer network 2 client terminal 3 load balancer 4 server 5 client request 6 client response 7 server request 8 server response 9 request creating means, request creating section 10 request sending means, request sending section 11 response receiving means, response receiving section 12 unit Response extraction means, unit response extraction unit 13 unit response display unit 14 request reception unit 15 request division unit 16 schedule management unit 17 request creation unit 18 request transmission unit 19 response reception unit 20 unit response extraction unit 21 response creation unit 22 response transmission unit Reference Signs List 23 Request receiving unit 24 Request dividing unit 25 Schedule managing unit 26 Unit request processing unit 27 Response creating unit 28 Response transmitting unit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04L 12/40 H04L 12/40 Z (72) Inventor Hironobu Okuyama 2-3-1 Otemachi, Chiyoda-ku, Tokyo No. Nippon Telegraph and Telephone Corporation F term (reference) 5B082 HA05 HA08 5B085 BG07 CA04 5B089 GA11 GA21 GB01 KA07 KA13 KB04 KB06 KG03 KG04 5K032 AA01 BA04 DA01 DB22

Claims (19)

[Claims] 1. A simultaneous access method for simultaneously accessing a plurality of servers connected via a network from a client terminal, wherein the client terminal stores at least one unit request as information including one piece of URL information. A simultaneous access method, comprising: creating one request; transmitting the created request to a server; receiving a response corresponding to the request from the server; and extracting a unit response from the received response. 2. The unit response includes processing result information that identifies the processing result of the unit request. If the processing result information included in the unit response is successful, it is displayed on a screen, and the unit response is unsuccessful. 2. The simultaneous access method according to claim 1, wherein the information is not displayed on the screen when the data is accessed. 3. A simultaneous access method for simultaneously accessing a number of servers connected via a network from a client terminal, wherein the server stores at least one unit request as information including one piece of URL information. Receiving the request, dividing the request into unit requests, registering the divided unit requests in a schedule, reading the unit requests registered in the schedule, performing processing on the unit requests, and Creating a response from the unit response, and transmitting the response. 4. A comparison between the number of unit requests included in the request and an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, registration in the schedule is not performed. 4. The simultaneous access method according to claim 3, wherein a response storing error information indicating that the value is exceeded is transmitted. 5. A simultaneous access method for simultaneously accessing a large number of servers connected via a network from a client terminal, wherein: a proxy server (load distribution device) connected to the server and the client terminal; A request for storing at least one unit request, which is information including a client ID for identifying a client terminal and one piece of URL information, is received, the received request is divided into unit requests, and the divided unit requests are scheduled. Registering, reading one or more unit requests registered in the schedule, creating a request from the unit request, transmitting the created request to the server, and a client corresponding to the request from the server. Receiving a response including the ID, extracting a unit response from the response, Simultaneous access method characterized by select the unit response with the same client ID from the serial unit response creates a response and sends the response to the client terminal. 6. A comparison between the number of unit requests included in the request and an upper limit of a predetermined number of unit requests, and when the upper limit is exceeded, without registering a unit response in the schedule, 6. The simultaneous access method according to claim 5, wherein a response storing error information indicating that the value exceeds the upper limit value is transmitted to the client terminal. 7. A client terminal for simultaneously accessing a large number of servers connected via a network, wherein the request creates one request for storing at least one unit request which is information including one piece of URL information. Creating means, request sending means for sending the created request to a server, response receiving means for receiving a response corresponding to the request from the server, and unit response extracting means for extracting a unit response from the received response And a client terminal comprising: 8. The unit response includes processing result information that identifies a processing result of the unit request. If the processing result information included in the unit response is successful, the unit response is displayed on a screen, and the unit response is unsuccessful. The client terminal according to claim 7, further comprising a display unit that does not display on the screen when the request is made. 9. A request processing server connected via a network from a client terminal, wherein the request receiving means receives a request for storing at least one unit request which is information including one piece of URL information; Request dividing means for dividing into unit requests, and registering the divided unit requests in a schedule,
A schedule management unit that reads a unit request registered in the schedule, a unit request processing unit that processes the unit request and creates a unit response, and a response creation unit that creates one response from the unit response. A request processing server, comprising: a response transmitting unit that transmits the response. 10. The request division unit compares the number of unit requests included in the request with an upper limit value of a predetermined number of unit requests, and if the upper limit value is exceeded, the request is registered in the schedule. The request processing server according to claim 9, further comprising: means for passing error information indicating that the error information has exceeded the upper limit, and wherein the response transmitting means includes means for transmitting a response storing the error information. 11. A proxy server (load distribution device) for simultaneously accessing a plurality of servers connected via a network from a client terminal, wherein the client transmits a client ID for identifying the client terminal and one URL information from the client. Request receiving means for receiving a request for storing at least one or more unit requests as information to be included, request dividing means for dividing the received request into unit requests, registering the divided unit requests in a schedule, A schedule management means for reading one or more unit requests registered in the schedule management means;
Request creating means for creating one request, request sending means for sending the request created by the request creating means to the server, and response receiving means for receiving a response including the client ID corresponding to the request from the server A unit response extraction unit that extracts a unit response from the response; a response creation unit that selects a unit response having the same client ID from the unit response to create a response; and a response that transmits the response to the client terminal. A proxy server, comprising: a transmission unit. 12. The request division unit compares the number of unit requests included in the request with an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, a unit response is sent to the schedule. 12. The method according to claim 11, further comprising: transmitting error information indicating that the error information has exceeded the upper limit without registering the error information; and transmitting the response storing the error information to the client terminal. Proxy server. 13. A simultaneous access control program to be executed by a client terminal for simultaneously accessing a large number of servers connected via a network, wherein at least one unit request as information including one piece of URL information is stored. A request creating process for creating one request, a request sending process for sending the created request to a server, a response receiving process for receiving a response corresponding to the request from the server, and a unit response from the received response And a unit response extracting process for extracting a response. 14. When the processing result information included in the unit response including the processing result information identified by the processing result of the unit request is successful, it is displayed on a screen, and when the processing result is unsuccessful, the screen is displayed. 14. The simultaneous access control program according to claim 13, further comprising a display process that is not displayed above. 15. A simultaneous access control program to be executed by a request processing server connected via a network from a client terminal, the request being a request for receiving a request for storing at least one unit request which is information including one piece of URL information. A receiving process, a request dividing process for dividing the request into unit requests, and registering the divided unit requests in a schedule,
A schedule management process for reading a unit request registered in the schedule, a unit request processing process for processing the unit request and creating a unit response, and a response creating process for creating one response from the unit response, And a response transmission process for transmitting the response. 16. The request division process compares the number of unit requests included in the request with an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, the request is registered in the schedule. 16. The simultaneous access control program according to claim 15, further comprising: a process of passing error information indicating that the error information has exceeded the upper limit, and wherein the response transmitting process includes a process of transmitting a response storing the error information. 17. 17. A simultaneous access control program to be executed by a proxy server (load distribution device) for simultaneously accessing a number of servers connected via a network from a client terminal, wherein the client identifies the client terminal from the client. A request receiving process for receiving a request for storing at least one unit request, which is information including an ID and one piece of URL information, a request dividing process for dividing the received request into unit requests, A schedule management process for registering a schedule and reading one or more unit requests registered in the schedule; a request creation process for creating one request from the unit requests acquired from the schedule management process; The request made in A request transmission process for transmitting the request to the server, a response reception process for receiving a response including the client ID corresponding to the request from the server, a unit response extraction process for extracting a unit response from the response, and the same from the unit response. A simultaneous access control program, comprising: a response creation process of selecting a unit response having a client ID to create a response; and a response transmission process of transmitting the response to the client terminal. 18. The request division process compares the number of unit requests included in the request with an upper limit of a predetermined number of unit requests, and if the upper limit is exceeded, a unit response is sent to the schedule. 18. The method according to claim 17, further comprising a process of passing error information indicating that the error information has exceeded the upper limit without registering the error information, and wherein the response transmission process includes a process of transmitting a response storing the error information to the client terminal. Concurrent access control program. 19. In order to simultaneously access a number of servers connected via a network from a client terminal,
19. A storage medium storing a simultaneous access control program to be executed by any of the client terminal, the server, and a proxy server located between the client terminal and the server, wherein the storage medium stores a simultaneous access control program. A storage medium storing a simultaneous access control program, wherein the simultaneous access control program is stored.