1>web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name>Test</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<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>
</filter-mapping>
</web-app>
2>userAction.java
package com.Test.action;
public class UserAction {
String info;
public String getInfo() {
return info;
}
public void setInfo(String info) {
this.info = info;
}
public String find() {
if (info.endsWith(".vip")) {
return "vip";
}
return "regular";
}
}
3>struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 动态方法调用 -->
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<package name="helloPackage" extends="struts-default">
<action name="userAction" class="com.Test.action.UserAction" method="find">
<result name="vip">/vip.jsp</result>
<result name="regular">/nvip.jsp</result>
</action>
</package>
</struts>
4>index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="userAction">
<table border="1" width="400px" height="200px">
<tr>
<td>请输入用户名：</td>
<td><input name="info" type="text" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" name="submit" value="提交" /></td>
</tr>
</table>
</form>
</body>
</html>
5>相关jsp文件
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>VIP</h1>
<s:property value="info" />
</body>
</html>
vip.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>NOT VIP ,HELLOWORLD</h1>
<s:property value="info" />
</body>
</html>
nvip.jsp
注意：1>在form表单中，action值为struts.xml中的action中的name值,习惯上在后面再写个.action，不写也没关系，
2>在input中，name值要与action.java中的属性名称一致，
时间： 2024-11-05 13:41:25