What are the characteristics of JSP developing web application based on Java?

sxxbxh 2021-02-23 14:20:15
characteristics jsp developing web application


JSP be based on Java Development Web What are the characteristics of the application ?JSP It's based on Servlet Dynamic web development technology based on the standard , The essence is a simplified Servlet, stay JSP In file HTML Code and the Java Code exists in common , among HTML The code is used to display the static content in the web page ,Java The code is used to display the dynamic content in the web page . In order to keep up with tradition HTML Somewhat different ,JSP The extension of the file is JSP.

be based on Java Of JSP Technology Institute Development Web Applications , Its use features are as follows :

1、 precompile

Precompile refers to the first time a user accesses through a browser JSP When the page is , The server will respond to JSP Page code to compile , And only one compilation . The compiled code will be saved , The compiled code will be executed the next time the user visits . This not only saves the server CPU resources , It also greatly improves the access speed of the client .

2、 Business code separation

In the use of JSP technological development Web When applied , The interface development can be separated from the application development .

3、 component reuse

JSP Use JavaBean Write business components , That is to use a JavaBean Class encapsulates business processing code or uses it as a data storage model , stay JSP This can be reused on a page or even throughout a project JavaBean, meanwhile JavaBean It can also be applied to other Java In the application .

4、 Cross platform

JSP Is based on Java Language , have access to Java API, Cross platform can be applied to different systems , Such as Windows and Linux etc. .

5、JSP Operation principle

JSP Our working mode is request / Response patterns , The client sends the HTTP request ,JSP After receiving the request, the program will process it and return the result . In a JSP The first time a file is requested ,JSP engine ( Containers ) Take this JSP File conversion into a Servlet, And the engine itself is a Servlet. Zhengzhou infertility hospital http://yyk.39.net/zz3/zonghe/fc964.html

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