TWI220346B - Method for instantaneously displaying server program operation at client end - Google Patents

Abstract

A method for instantaneously displaying program operation of server at client end firstly receives client's request at server end. Then process client's request, execute corresponding server program and instantaneously monitor the server program operation. Refresh client's screen in accordance with the operation status, allowing client to understand the server program operation status promptly and precisely.

Description

1220346 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention is a method for displaying the running status of a program, in particular a method for displaying the running status of a server-side program on a client side. [Previous technology] At present, the server / client structure (Server / Client) is more and more widely used. "Its advantage lies in the widespread use of network technology." All tasks in the system are distributed to the distributed network. Computers with different roles, it will give more complex computing and management tasks to high-end machine servers (Server) on the network, and some tasks that frequently deal with users to the simpler computer-client (C 1 ient). Through this structure, information resources on the Internet are fully shared. Generally, when the server / client structure browses information, the client submits a request, and the server must perform the corresponding operation. When the corresponding operation cannot be submitted to the user within a short period of time, it is necessary to let the user know the status of the current server operation. The traditional method is to simply display a page such as π is querying data, please wait ... The page of π is not converted until the server displays the result. Although this method gives a prompt for the user to wait, it is not intuitive enough. The user can only wait for the result, but does not know how long it will take before the result comes out, and whether the program has an error. If the time is long, the user will think that the server can't respond in real time and end the operation. The traditional method can't display the current processing status in real time, and when the server program has an error, it can't send the information back to the client in time. This situation is particularly evident in website or client / server-based development, which wastes a lot of time and reduces

1220346 V. Description of the invention (2) Make the access to the server efficient. Therefore, how to realize the operation of server-side programs intuitively and effectively is an urgent problem to be solved. [Summary of the Invention] In view of this, the present invention proposes a method for real-time display of the running status of the server-side program on the client side in order to solve the above-mentioned problems. You can know the running status of the server program accurately and timely. Therefore, in order to achieve the above-mentioned purpose, the method for real-time display of a server-side program running on the client side provided by the present invention firstly receives the client-side request, and then processes the client-side request and executes the corresponding server-side program in real time. Monitor the operation of the server-side program, and then refresh the content that needs to be updated to the client page according to the operating situation. The client page does not need to be refreshed. According to the method for real-time displaying the running status of a server-side program provided on the client end according to the present invention, the running status of the server-side program can be monitored in real time and displayed on the client end, so that the user can know the running progress of the program in real time and whether If an error occurs, the error will be processed accordingly, which improves the access efficiency to the server. Regarding the details and technology of the present invention, the following description is given in conjunction with the drawings: [Embodiment] During the webpage browsing process, our own computer is called "client (C 1 1 ent)", and the WWW server is called Doing "server-side" architecture is called "master-slave" in the network

1220346 V. Description of the architecture of the invention (3). The characteristics of the master-slave architecture are: the server sends information to the client only when the client sends a request. If there is no request from the server or the client, There is no connection between the server and the client. Under normal circumstances, the server simply displays a page such as π while querying the data when processing the request from the browser. Please wait " • ·· • !! page, as shown in the factory No. 18 ^ J until the server produces a result After that, it is converted into a page displaying the results. According to the method 9 provided by the present invention, the progress of the program running in the server can be displayed in real time according to the percentage of W \, please refer to the second figure in the factory. The progress is refreshed once, so that the user can more intuitively understand the running status of the current program. According to the method of displaying the running status of the server-side program on the client side according to the present invention, please refer to "Figure 3", which is the The general flowchart of the method for displaying the running status of the server-side program on the client side in real time is provided. First, the server side receives a request from the client side (step 31 _〇), and processes the request after the absence and executes it. Corresponding server-side program (step 3 2 0), real-time monitoring of the running status of the feeder-side program (step 3 3 0) (refresh the client page according to the running situation (step 3 4 0) C) Below Taking the CGI ((Common Gateway Int'er fa (ze) > service implementation as an example) to describe the invention in detail, when the Tian client submits a CGI (Common Gate〗 Way Interface) page to the server end, the invention provides Instantly send J ava S1 cript function in the browser page. J avaS cript refers to the user's JavaScr ipt. It is a script code written in an HTML file.

Page 6 1220346 V. Description of the invention (4) on the computer ◦ When the browser interprets the HTML, it will interpret J ava Cript together, and if there is a place to execute it, it will execute it, or wait for some event ( Event) occurs, for example, the mouse is pressed to execute. So Jav a S c r i p t is executed by the browser on the user side. This function will change the width of the small picture used to represent the progress bar on this page, to achieve the purpose of scrolling the progress bar. Please refer to the "Picture 4", which is a flowchart of an embodiment of the method for displaying the server-side real-time operation status on the client side in the present invention. CG I is a channel for the server to call external programs for execution, so CG I—it must be executed on the server. First the browser submits a form (step 41 0), which is processed by copyfile.cgi. The server runs the copyfile.cg i program (step 4 2 0). The program will copy files from a directory on the disc to a directory on the hard disk. Then get the number of files to be copied (step 4 3 0), which is assumed to be 100 here. The program uses the operating system's cp command to copy the file (step 44 0), and then monitors whether the copy operation is normal (step 4 50). If the copy fails, other values will be returned to prompt the user. Error information will be displayed on the current page (step 4 8 0), please refer to "Figure 5". Flowchart of error information processing of the case method. After the error information is displayed on the client (step 5 1 0), the client can select a processing method (step 5 2 0) based on the error information. The processing method includes retry, skip Pass, abort, exit, etc. These return values are specified by the operating system. For example, a return value of 0 0 means that the original file cannot be read, and 1 0 1 means that the target disk has no space. To prompt the user. When the cp command is copied normally, the return value is 0.

1220346 V. Description of the invention (5) The server receives the processing means and executes the corresponding operation (step 5 3 0). If the copy is successful, the server calculates the processing progress according to the current number of files copied (step 4 60). Every time a cp command is called in the program, a file is copied. Since there are 100 files in total, the current progress is increased by 1 for each successful copy of the file, and the total number of files copied is also increased by 1. The number is found at 100, and the table copying is complete. You can exit. At this time, you need to refresh the progress to the page on the browser (step 4 70), that is, output a piece of Jav a S c rip code to change the width of the progress bar. In the present invention, the user can also use a browser to submit a J SP page to achieve a certain result. Please refer to "Figure 6". When the client submits a JSP page to the server end, that is, when Web server When accessing the JSP page, first enter the JSP page to execute the program fragment (step 610), then detect the running status of the program in real time, calculate the program progress at the same time (step 6 2 0), and then refresh the client progress page, Update the current progress (step 6 3 0) ◦ As shown in "Figure 7", in the process of updating the current progress above, first record the integer variable of the percentage (step 7 1 0), and enter the progress page when the percentage needs to be updated ( Step 7 2 0), and then refresh the width of the progress bar (Step 7 3 0). The execution result is returned to the customer in HTML format. Snippets can manipulate databases, redirect web pages, send ema i 1 and much more. All program operations are performed on the server side, and the results uploaded to the client by the network are only obtained. Although the present invention is disclosed above with the foregoing preferred embodiments, it is not

1220346

Page 1212346 Brief description of the diagram. Figure 1 is a schematic diagram of the traditional method for displaying browsing progress; Figure 2 is a schematic diagram of the method for displaying browsing progress according to the present invention; Figure 3 is a method for displaying the server end in real time on the client side according to the present invention. The overall flowchart of the method of the program running situation; FIG. 4 is a flowchart of the embodiment of the method of displaying the server-side program running status on the client side in real time according to the present invention; FIG. 5 is the user of the present invention. Flow chart of error information processing for real-time display of server-side program running status;

FIG. 6 is a flowchart of an embodiment of a method for real-time displaying a server-side program running on a client terminal according to the present invention; and FIG. 7 is a real-time displaying server-side program running status on a client side according to the present invention A flow chart of the progress of the method. [Illustration of graphical symbols] Step 3 1 The server receives a request from the client. Step 3 2 Processes the request and executes the corresponding server program. Step 3 3 0 Real-time monitors the operation of the server program. Step 3 4 0 Refresh the client page based on the operation

Step 4 1 Submit a form on the browser side Step 4 2 Run the copyfi 1 e. Cgi program on the server side Step 4 3 0 Get the number of files to be copied Step 4 4 0 Use the cp command of the operating system to copy File Step 4 5 0 Monitor whether the copy is normal Step 4 6 0 Calculate the processing progress based on the current number of files copied

Page 10 1220346 Simple and early explanation of the step 4 7 0 Refresh the progress of the page on the browser Step 4 8 0 Display error information on the current page Step 5 1 0 Display the error information on the client Step 5 2 0 The information selects a processing method step 5 3 0 The server receives the processing method and executes the corresponding operation step 6 1 0 Enters the JSP page and executes the program fragment thereof Step 6 2 0 Calculates the program progress Step 6 3 0 Refreshes the client progress page, Update the current progress Step 7 1 0 Record the integer variable of the percentage Step 7 2 0 Enter the progress page when the percentage needs to be updated Step 7 3 0 Refresh the width of the progress bar

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Claims (1)

1220346 VI. Application for Patent Scope A method for real-time display of the running status of the server-side program on the client side includes the following steps: The server side receives a request from the client side; processes the request and executes the corresponding server-side program; real-time monitoring The operation of the server-side program; and refreshing the client-side page according to the operation. 2. The method for real-time display of the server program running on the client as described in item 1 of the scope of the patent application, wherein the client request is uploaded to the server by submitting a CGI (Common Gateway Interface) page End. 3. The method for displaying the running status of the server program on the client side in real time as described in item 1 of the scope of patent application, wherein the request from the client side is uploaded to the server side by submitting a JSP page. 4. The method for real-time display of the server-side program running status on the client side as described in item 1 of the scope of patent application, wherein the step of real-time monitoring of the server-side program running status is to detect the running of the program in real-time schedule. 5. As shown in item 4 of the scope of patent application, the method of displaying the running status of the server program on the client side in real time, wherein the running progress of the program is displayed in the form of a progress bar. 6. The method for displaying the running status of the server program in real time on the client side as described in item 1 of the scope of patent application, wherein the step of monitoring the running status of the program in real time is to monitor the error of the program in real time. Information. Page 1212346 6. Applicable patent scope 7. The method of real-time display of the server-side program running status on the client side as described in item 6 of the patent application scope, where the error information includes · Cannot read original file, target No free space on disk, operation failed. 8. As shown in item 6 of the scope of patent application, the method of displaying the running status of the server-side program on the client side in real time, wherein the step of monitoring the program's error information in real time, further includes the following steps: displaying the error on the client side Information; the client selects a processing method according to the information; and the server receives the processing method and performs a corresponding operation. 9. The method for displaying the running status of the server program on the client side in real time as described in item 8 of the scope of patent application, wherein the processing means include retry, skip, abort, and exit. 10. The method for displaying the running status of the server-side program on the client side in real time as described in item 1 of the scope of patent application, wherein the step of refreshing the client-side page according to the running situation further includes: recording an integer variable of the percentage; Enter the progress page when the percentage needs to be updated; and refresh the width of the progress bar. 11. The method for displaying the running status of the server-side program on the client side in real time as described in item 10 of the scope of patent application, wherein the step of refreshing the width of the progress bar is to output a piece of JavaScript code to change the progress bar The width. Page 13