Jsp syntax

Jsp command element

(1) include: import other folders

(2) page:

Language: UsedLanguageOnly JAVA

ContentType: MIME type

Import: import a java package

(3) taglib: custom tag library

Common standard elements of jsp

(1) jsp: forward: jump to other pages

(2) jsp: include: insert other files. For example:

(3) jsp: plugin: insert applet

(4) jsp: param: parameter value passing

Jsp built-in object

(1) request: common methods

GetParameter (): extract the value of the form element

GetRemoteAddr (): GetClientIP value

(2) response:

SendRedirect (): redirects to other web pages

SetcontentType (); sets the MIME value

(3) out: output to Webpage

(4) application

SetAttribute (String, Object) stores the value of the variable in the application;

GetAttribute (String) gets the value stored in applicaion

RemoveAttribute (String) deletes the value stored in the application

(5) session

SetAttribute (String, Object) stores the variable value in the session;

GetAttribute (String) gets the value stored in the session