CN101854371B - The method called and process of JavaScript object, device - Google Patents

Abstract

The embodiment of the present invention relates to the fields of communication and the Internet, and discloses a method for processing JavaScript objects, which includes the steps of: receiving a remote call request message sent by a client; parsing the remote call request message to obtain business logic information; according to the The business logic information is processed; the processed result is encapsulated in a message structure and sent to the client. At the same time, a device for realizing the above method and a method and device for invoking JavaScript objects are also provided. The method and device achieve the effect of JavaScript remote method invocation, and the client and server cooperate to execute JavaScript objects, thereby eliminating the step of downloading js files from a remote location. When the business logic is complex or the JavaScript business file is large, this method It will bring obvious advantages and better meet the requirements of user experience.

Description

Method and device for invoking and processing JavaScript objects

technical field

The embodiments of the present invention relate to the fields of communication and the Internet, and in particular design a method and device for invoking and processing JavaScript objects.

Background technique

In recent years, with the rapid development of mobile embedded devices, people's demand for accessing the network through mobile devices has increased, and it is required to access the Internet as conveniently as possible. JavaScript technology is gradually being widely used in WEB development. JavaScript technology is one of the key technologies hidden behind the presentation of web content (such as web pages, widgets). JavaScript technology is an object-based scripting language. The core JavaScript includes a core set of objects, including Array, Data, Math, etc., as well as some core grammatical elements, such as operators, control structures, and statements.

Although the way in which mobile embedded devices (such as mobile phones) access the Internet can do this to some extent (such as WAP), its presentation is too simple to meet the requirements of user experience. It has caused certain difficulties in terms of user experience and business types.

Contents of the invention

The embodiment of the present invention provides a method for invoking a JavaScript object, and improves the execution mode of JavaScript, so that the JavaScript object is executed by the client and the server in cooperation, thereby improving the experience effect of the terminal user.

The calling method of the JavaScript object that the embodiment of the present invention provides comprises steps:

Receive the remote call request message sent by the client;

Analyzing the remote call request message to obtain business logic information;

Perform business processing according to the business logic information;

Encapsulate the processed result in a message structure and send it to the client.

An embodiment of the present invention provides a method for invoking a JavaScript object, the method comprising:

Perform lexical analysis and syntax analysis on the JavaScript code file to obtain the remote object name;

When the JavaScript object is successfully matched with the remote object in the character set, a remote call request message is generated and sent, and the remote call request message carries the name of the remote object;

Send the remote call request message to the server;

Receive the processing result at the server end, the processing result is obtained by processing the remote call request message, and continue to execute the JavaScript code after parsing the result.

Further, an embodiment of the present invention also provides a server-side device, which includes

A server, characterized in that the server includes:

The receiving unit is configured to receive the remote call request message sent by the client.

The parsing unit is configured to parse the remote call request message received by the receiving unit to obtain business logic information.

The business processing unit is configured to perform business processing according to the business logic information obtained by the parsing unit.

The sending unit is configured to encapsulate the result processed by the business processing unit in a message structure and send it to the client.

Further, an embodiment of the present invention also provides a terminal device, which includes:

The analysis module is used to perform lexical analysis and syntax analysis on the JavaScript code file to obtain the remote object name;

A message generating module, configured to generate a remote call request message when the JavaScript object matches the remote object in the character set successfully, and the remote call request message carries the remote object name;

The sending module is used to send the remote call request message generated by the message generating module to the server;

The receiving module is used to receive the processing result of the server, and continue to execute the JavaScript code after parsing the result.

The method described in the embodiment of the present invention achieves the effect of JavaScript remote method invocation, and the client and the server cooperate to execute JavaScript objects, which can avoid the steps of downloading JavaScript files from a remote location. When the business logic is complex or the JavaScript business file is large , this method will bring obvious advantages, and can better meet the requirements of user experience.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

FIG. 1 is a flow chart of the JavaScript object processing method provided by the first embodiment.

FIG. 2 is a flow chart of the JavaScript object invocation method provided by the second embodiment.

FIG. 3 is a schematic structural diagram of a server device according to an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The JavaScript object processing method provided by Embodiment 1 of the present invention, with reference to FIG. 1 , is a flow chart of the method in the embodiment of the present invention.

S101. Receive a remote call request message sent by a client.

The remote call request message carries an object name, an object method name, and a parameter list. The parameter list includes device attribute parameters, user information, trigger events, etc. In practice, one or more of the above information can be carried in the remote call request information as required. In the application, HTTP can be used as the bearer protocol, and JSON format can be used as the packaging request message. The device attribute parameter carries the display format it supports.

S102. Parse the remote call request message to obtain business logic information.

After receiving the remote call request message sent by the client, the carried information is taken out. Obtain business logic information according to each parameter in the message.

S103. Perform service processing according to the service logic information.

After receiving the remote call request message, the business logic information is obtained, and the corresponding business processing module invokes parameters to run the business logic and obtains the processing result. The invoked parameters include the parameters carried in the remote invocation request message sent by the client. Call the function to perform logic processing according to the remote object name in the remote call request message. For example: the server selects different business processing modules (such as a servlet) according to the object name, calls different functions according to the object method name, and the parameters in the remote call request message sent by the client will be part of the server parameter list.

S104. Encapsulate the processed result in a message structure and send it to the client.

After the business processing is completed, the processing results are encapsulated into a format that the client can process according to the communication protocol with the client, and the business processing results are sent to the client.

Through the above steps, the remote call processing of JavaScript objects is realized, and then the client can process the returned results according to local needs. The client only needs to send a call request message to the server, and then receive the processing result sent by the server. The method described in the embodiment of the present invention achieves the effect of JavaScript remote method invocation, and the client and the server cooperate to execute JavaScript objects, thereby eliminating the step of downloading JavaScript files remotely. When the business logic is complex, or the JavaScript business files are large , this method will bring obvious advantages, and can better meet the requirements of user experience.

The method for invoking a JavaScript object provided by Embodiment 2 of the present invention describes the solution from the perspective of a client. Refer to FIG. 2 , which is a flowchart of a method for invoking a JavaScript object.

When the user creates a JavaScript object on the client side, determine whether to start the remote call process. Start the remote call process if needed.

S201. The client performs lexical analysis and syntax analysis on the JavaScript code file to obtain a remote object name.

Obtain the remote object name through lexical analysis. Then perform grammatical analysis to form a two-way word linked list through grammatical analysis, wherein during the grammatical analysis process, the grammatical keywords and the variable names of the processing objects are judged through character set processing. The remote object name is matched with the remote object in the character set, and when the obtained remote object name is found in the remote object name in the character set, it is considered that the JavaScript object matches the remote object in the character set successfully.

S202. Generate a remote call request message after the JavaScript object matches the remote object in the character set. The remote call request message carries the name of the remote object.

Obtain the parameters of the JavaScript object to be called remotely, and encapsulate the request message according to the protocol, which may be a private protocol, such as encapsulating it into a JSON message. The message carries the object name, object method name, and parameter list. The parameter list includes device attribute parameters, user information, trigger events, etc.

After the remote call request message is generated, the request message is sent according to the message format agreed by both the client and the server.

S203, sending a remote call request message to the server.

The request message in the application is encapsulated into a JSON message. Request messages are transmitted via the HTTP protocol.

S204. Receive a processing result from the server, the processing result is obtained by processing the remote call request message, and execute JavaScript code after parsing the result.

Then display the result of the execution.

Through the above steps, the remote call of the JavaScript object is realized, and the client only needs to send a call request message to the server, and then receive the processing result sent by the server. The method described in the embodiment of the present invention achieves the effect of JavaScript remote method invocation, and the client and the server cooperate to execute JavaScript objects, thereby eliminating the step of downloading JavaScript files remotely. When the business logic is complex, or the JavaScript business files are large , this method will bring obvious advantages, and can better meet the requirements of user experience.

Embodiment 3 of the present invention describes the solution from the perspective of cooperation between the client and the server.

First, the client negotiates with the server. In the application, the server can also carry the display format it supports through the device attribute parameter sent by the client. The device attribute parameter can be carried in the remote call request message.

When the client creates a JavaScript object, it determines whether to start the remote call process. When the remote call process is started, the client performs lexical analysis on the JavaScript source program, adds the remote object name in the character set, and then performs grammatical analysis to form a two-way word linked list, and then generates an intermediate data structure, in which the grammatical analysis process is judged according to the character set Syntax keywords and process object variable names. When the object matches the remote object in the character set, the remote call request message is sent according to the message format agreed between the client and the server. The matching process is keyword matching. The JavaScript parser is responsible for packaging the message according to the protocol to generate the remote call request message.

Request messages can be transmitted via the HTTP protocol. The request message carries at least: object name, object method name, and parameter list. The request message carries the context information of the business logic, and different output results will be produced according to the input information. For example, if the client wants a map, it needs to tell the server the latitude and longitude, the size of the map, etc.

The server receives the remote call request message sent by the client.

The monitoring service port on the server side monitors the business, checks the message format after getting the message, and distributes it to the corresponding module for business processing according to the message type. The server side logs the message type. Obtain customer behavior and client hotspot requests through log records, and analyze customer behavior based on log records. After obtaining the remote call request message, the server side initializes the requested service, parses the remote call request message, obtains service logic information, and runs the service logic according to the call parameters carried in the request message. After completing the operation of the business logic, the server encapsulates the result with a communication protocol.

The server sends the encapsulated result to the client.

After the client receives the result sent by the server, it parses the result, interprets and executes the JavaScript code according to the grammatical keywords, and displays the execution result.

The method described in the embodiment of the present invention achieves the effect of JavaScript remote method invocation, and the client and the server cooperate to execute JavaScript objects, which can avoid the steps of downloading JavaScript files from a remote location. When the business logic is complex or the JavaScript business file is large , this method will bring obvious advantages, and can better meet the requirements of user experience. And when the business logic is run on the server through remote calls, the client obtains the call object. When running the business logic, it can be implemented not only by JavaScript scripts, but also by C, JAVA, etc., changing that if running on the client is only The current status of being able to run JavaScript scripts improves the flexibility of business processing.

Through the above steps, the remote call processing of the JavaScript object is realized, and the client only needs to process the returned result according to the local needs. The client only needs to send a call request message to the server, and then receive the processing result sent by the server. The method described in the embodiment of the present invention achieves the effect of JavaScript remote method invocation, and the client and the server cooperate to execute JavaScript objects, thereby eliminating the step of downloading JavaScript files remotely. When the business logic is complex, or the JavaScript business files are large , this method will bring obvious advantages, and can better meet the requirements of user experience.

The embodiment of the present invention also provides a server, which provides JavaScript object call processing for the client. Referring to FIG. 3 , a schematic structural diagram of a server device according to an embodiment of the present invention, the server 30 includes:

The receiving unit 301 is configured to receive a remote call request message sent by a client.

The parsing unit 303 is configured to parse the remote call request message received by the receiving unit to obtain business logic information.

The business processing unit 305 is configured to perform business processing according to the business logic information obtained by the parsing unit.

The sending unit 307 is configured to encapsulate the result processed by the business processing unit in a message structure and send it to the client.

Further, the server 30 also includes a message monitoring module 311, configured to judge the type of the received message according to the type field in the message header, and determine that what the receiving unit 301 receives is a remote call request message sent by the client.

The embodiment of the present invention also provides a terminal device, which can implement remote calling of JavaScript objects. Terminal 40 includes:

The analysis module 401 is used to perform lexical analysis and syntax analysis to JavaScript code files to obtain the remote object name;

The message generating module 403 is used to generate a remote call request message when the JavaScript object is successfully matched with the remote object in the character set, and the remote call request message carries the name of the remote object;

A sending module 405, configured to send the remote call request message generated by the message generating module 403 to the server;

The receiving module 407 is configured to receive the processing result of the server, and continue to execute the JavaScript code after parsing the result.

Further, the terminal further includes a display module 409 for displaying the result of executing the JavaScript.

The terminal device also includes a matching module 411, which is used to carry out keyword matching between the remote object name and the remote object in the character set. Centralized remote object matching succeeded.

The server-side device and the client-side device described in the embodiment of the present invention have achieved the effect of JavaScript remote method invocation, and the client-side and server-side cooperate to execute JavaScript objects, which can generally avoid the steps of downloading JavaScript files from a remote location. When the business logic is complex , or when the JavaScript business file is large, this method will bring obvious advantages, and can better meet the requirements of user experience. And when the business logic is run on the server through remote calls, it can be implemented not only by JavaScript scripts, but also by C, JAVA, etc., which changes the current situation that only JavaScript scripts can be run when running on the client, and improves business processing. flexibility.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM) and the like.

The above descriptions are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the present invention according to the disclosure of the application documents without departing from the spirit and scope of the present invention.

Claims (5)

1. A method for JavaScript object calling, characterized in that the method comprises: Perform lexical analysis and syntax analysis on the JavaScript code file to obtain the remote object name; When the JavaScript object is successfully matched with the remote object in the character set, a remote call request message is generated. The remote call request message carries the name of the remote object, the name of the method of the remote object, and a list of parameters, and the list of parameters includes device attribute parameters, user information, trigger events; Send the remote call request message to the server; Receiving the processing result of the server end, the processing result is obtained by processing the remote call request message, and continuing to execute the JavaScript code after parsing the result; Wherein, the processing result is obtained by processing the remote call request message, specifically, the processing result is selected from a different business processing module by the name of the remote object, and in the different business processing modules, according to the remote object The method name is obtained by calling different functions for logical processing. 2. The method according to claim 1, wherein a two-way linked list of words is formed through grammatical analysis, wherein the grammatical keyword and the variable name of the processing object are judged through character set processing in the grammatical analysis process. 3. The method according to claim 1, further comprising: carrying out keyword matching between the remote object name and the remote object in the character set, when the obtained remote object name is found in the character set When the remote object name is used, it is considered that the JavaScript object matches the remote object in the character set successfully. 4. A terminal device, characterized in that the terminal device comprises: The analysis module is used to perform lexical analysis and syntax analysis on the JavaScript code file to obtain the remote object name; A message generation module, used to generate a remote call request message when the JavaScript object is successfully matched with the remote object in the character set, the remote call request message carries the name of the remote object, the method name of the remote object, a parameter list, and the parameter list Including device attribute parameters, user information, and trigger events; a sending module, used to send the remote call request message generated by the message generation module to the server; The receiving module is used to receive the processing result of the server, and continue to execute the JavaScript code after parsing the result; wherein, the processing result selects a different business processing module according to the remote object name, and in the different business processing module According to the method name of the remote object, different functions are called to perform logical processing. 5. The terminal device according to claim 4, further comprising: The matching module is used to perform keyword matching between the remote object name and the remote object in the character set. When the obtained remote object name is found in the remote object names in the character set, it is considered that the JavaScript object matches the remote object in the character set successfully.