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@Yano 2016-06-11T01:03:19.000000Z 字数 2485 阅读 2877

Struts2 Demo

Java-Web

下面两张图，用 viso 画了1个小时~ viso 很强大啊！

工作原理

Struts2的工作原理（图解）详解
Struts2基本原理

Struts2原理.png-163.3kB

工作流程

Struts2步骤.png-284.9kB

Hello World Demo

Struts 2 hello world (XML版本)

1.png-14.5kB

web.xml

配置 Struts 2

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
  5.     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  6.     <display-name></display-name>
  8.     <welcome-file-list>
  9.         <welcome-file>HelloWorld.jsp</welcome-file>
  10.     </welcome-file-list>
  12.     <!-- Struts2配置 -->
  13.     <filter>
  14.         <filter-name>struts2</filter-name>
  15.         <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  16.     </filter>
  17.     <filter-mapping>
  18.         <filter-name>struts2</filter-name>
  19.         <url-pattern>/*</url-pattern>
  20.     </filter-mapping>
  22. </web-app>

struts.xml

配置每个Action。

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE struts PUBLIC
  3.     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
  4.     "http://struts.apache.org/dtds/struts-2.3.dtd">
  6. <struts>
  7.     <package name="struts2" extends="struts-default">
  8.         <global-results>
  9.             <result name="login">/HelloWorld.jsp</result>
  10.         </global-results>
  11.         <action name="loginPerson" class="action.LoginAction">
  12.             <result name="success">/welcome.jsp</result>
  13.         </action>
  14.     </package>
  15. </struts>

HelloWorld.jsp

  1. <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
  2. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
  3. <html>
  4. <head>
  5. <title>登录界面</title>
  6. </head>
  7. <body>
  8.     <form action="loginPerson">
  9.         <table>
  10.             <tr>
  11.                 <td>账号</td>
  12.                 <td><input type="text" name="account"></td>
  13.             </tr>
  14.             <tr>
  15.                 <td>密码</td>
  16.                 <td><input type="password" name="password"></td>
  17.             </tr>
  18.             <tr>
  19.                 <td><input type="submit" value="登录"></td>
  20.             </tr>
  21.         </table>
  22.     </form>
  23. </body>
  24. </html>

welcome.jsp

  1. <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
  2. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
  3. <html>
  4. <head>
  5. <title>欢迎界面</title>
  6. </head>
  7. <body>
  8.     welcome!
  9.     <%=request.getAttribute("account")%>
  10. </body>
  11. </html>

LoginAction.java

  1. package action;
  3. import com.opensymphony.xwork2.ActionSupport;
  5. public class LoginAction extends ActionSupport {
  7.     private String account;
  8.     private String password;
  10.     public String getAccount() {
  11.         return account;
  12.     }
  14.     public void setAccount(String account) {
  15.         this.account = account;
  16.     }
  18.     public String getPassword() {
  19.         return password;
  20.     }
  22.     public void setPassword(String password) {
  23.         this.password = password;
  24.     }
  26.     @Override
  27.     public String execute() throws Exception {
  29.         if ("yano".equals(account) && "123456".equals(password)) {
  30.             return SUCCESS;
  31.         }
  33.         return LOGIN;
  34.     }
  36. }

下载链接

http://pan.baidu.com/s/1pKNZix9

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