Beginner's Primer: JSP basic syntax and simple form processing

js| syntax

JSP Syntax:

JSP Directive elements

(1) Include: Import other folders

(2) Page:

Language: In what language, only Java

Contenttype:mime type

Import: Importing Java Packages

(3) Taglib: Custom Tag Library

JSP common standard elements

(1) Jsp:forward: Jump to other pages

(2) Jsp:include: Insert other documents eg:

(3) Jsp:plugin: Insert Applet Small Program

(4) Jsp:param: Parameter Transfer value

JSP built-in Objects

(1) Request: Common methods

GetParameter (): Extracts the value of a FORM element

GETREMOTEADDR (): Getting Client IP values

(2) Response:

Sendredirect (): Redirect to another page

setContentType (); Set MIME value

(3) Out: Output to the Web page

(4) Application

SetAttribute (string,object) holds the value of the variable in application;

GetAttribute (String) to get the value saved in Applicaion

RemoveAttribute (String) to delete values saved in application

(5) session

SetAttribute (String,object) Saves the value of the variable in session;

GetAttribute (String) to get values saved in session

RemoveAttribute (String) deletion is saved in the

GetID: Get Session number

jsp simple Form processing

<% @page contenttype= "text/html;charset=gb2312"%><% @page language= "java"%>