struts2第一个HelloWorld项目
基本项目文件框架如下：
对于需要的jar包，可以直接在Struts2.zip包下面的lib包里面拷贝，但是有些jar包却没有，可以直接在Struts2.zip下app文件夹下解压struts2-blank.war（可以修改后缀名为.zip or .rar 进行解压）
struts.xml
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default">
<action name="hello" class="test.struts2.sun.HelloWorld">
<result name="success">HelloWorld.jsp</result>
<!-- <result name="tutorial" type="redirect">/tutorial/test.action</result>-->
<!-- <result name="tutorial2" type="redirectAction">/tutorial/test.action</result>-->
</action>
</package>
</struts>
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">
<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>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
HelloWorld.java
package test.struts2.sun;
import com.opensymphony.xwork2.ActionSupport;
public class HelloWorld extends ActionSupport{
private String message;
private String userName;
public HelloWorld(){}
@Override
public String execute() throws Exception {
//return super.execute();
setMessage("Hello "+getUserName());
return "success";
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
index.jsp
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<s:form action="hello">
<s:textfield name="userName" label="User Name"> </s:textfield>
<s:submit value="提交"></s:submit>
</s:form>
</body>
</html>
HelloWorld.jsp
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%@taglib uri="/struts-tags" prefix="s" %>
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'HelloWorld.jsp' starting page</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>
<h1>
<s:property value="message"/>
</h1>
</body>
</html>