Recently just getting Started struts2, here is a simple struts2 example to learn with you.
This example realizes the simplest landing, contains only two pages: Login.jsp used to enter the user name and password; success.jsp is the landing Success page; error.jsp is the landing failure page.
1. New Web project "Struts2"
2. Introduction of JAR Package
Download the struts2 required Jar pack Struts-2.3.24-all.zip
After decompression, the following basic jar package is imported into Webroot/web-inf/lib
3, set up the page under Webroot
LOGIN.JSP:
<%@ page language="java" import="java.util.*" pageencoding= "UTF-8"%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" ><html> <head> </head> <body> <form Action="Login">Username<input type="text" name="username" /><br>Password<input type="password" name="password" /><br> <input type="Submit" value="Submit" /><br> </form> </body></html>SUCCESS.JSP:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> </head> <body> 恭喜您：${requestScope.username} 登陆成功<br/> </body></html>
error.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> </head> <body> 登陆失败 </body></html>
3. Configure Web. xml
<?xml version= "1.0" encoding= "UTF-8"?><web-app version="2.5"xmlns="Http://java.sun.com/xml/ns/javaee" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation=" Http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "> <display-name></display-name> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> <!--This filter is to set all requests handled by STRUTS2- <filter> <filter-name>Struts2</filter-name> <filter-class>Org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>Struts2</filter-name> <url-pattern>/*</url-pattern><!--All requests are handled by STRUTS2. </filter-mapping></Web-app>4. Create action
Package com.danny.user.action; Public classloginaction {PrivateString username;PrivateString password; PublicStringGetUserName() {returnUsername } Public void Setusername(String username) { This. Username = Username; } PublicStringGetPassword() {returnPassword } Public void SetPassword(String password) { This. Password = password; } PublicStringExecute() {if("Admin". Equals (username) &&"Admin". Equals (password)) {return "Success"; }Else{return "Error"; } }}5, Configuration Struts.xml
Build struts.xml in src directory
<?xml version= "1.0" encoding= "UTF-8"?><! DOCTYPE struts Public "-//apache software foundation//dtd struts Configuration 2.3//en" "Http://struts.apache.org/dt Ds/struts-2.3.dtd "> <struts> < package name="struts2" extends= "struts-default"> <!--extends is inherited meaning, Struts-default is located struts2-core-2.3.24.jar.struts-default.xml --and <action name="Login" class="Com.danny.user.action.LoginAction" > <result name="Success">/success.jsp</result> <result name="error">/error.jsp</result> </Action> </Package > </struts>Now, deploy the project, access the LOCALHOST:8080/STRUTS2, and go to the landing page:
When the login succeeds, jump to the Success page:
User name, password error, jump to the landing failure page:
Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.
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