搭建Struts2环境
1、要先下载Struts2的jar包，核心包：common-loggin-1.0.4.jar,freemarker-2.3.8.jar,ognl-2.6.11.jar,struts2-core-2.0.14.jar,xwork-2.0.7.jar(版本可能不同)，将这些包复制到WEB-INF/lib文件夹下。
2 、编辑web.xml,配置struts2核心Filter。
3、建立一个简单提交请求页面
4、创建Action
5、在src目录下创建一个struts.xml文件，将Action配置在web应用中
6、增加测试跳转成功页面
启动Tomcat。运行http://localhost:8080/struts2/login.jsp
2 、编辑web.xml,配置struts2核心Filter。
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
3、建立一个简单提交请求页面
<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<head>
<html:base />
<title>test.jsp</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form action="Login.action" method="post">
<table align="center">
<tr><td>用户名<input type="text" name="username" /> </td></tr>
<tr><td>密码<input type="text" name="password" /></td></tr>
<tr><td colspan="2"><input type="submit" value="登录" /> </td></tr>
</table>
</form>
</body>
</html:html>
4、创建Action
public class LoginAction {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String execute(){
if("admin".equals(getUsername())&&"admin".equals(getPassword())){
return "success";
}
else{
return "error";
}
}
}
5、在src目录下创建一个struts.xml文件，将Action配置在web应用中
<?xml version="1.0" encoding="UTF-8"?>
<!-- 指定Struts 2配置文件的DTD信息 -->
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="struts2test" extends="struts-default">
<action name="Login" class="com.struts2.test.LoginAction">
<result name="success">/welcome.jsp</result>
<result name="error">/login.jsp</result>
</action>
</package>
</struts>
6、增加测试跳转成功页面
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
登陆成功<br/>
欢迎你:${username }
</body>
</html>
启动Tomcat。运行http://localhost:8080/struts2/login.jsp