环境：java jdk1.7 tomcat:7.0 Eclipse EE
1.web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>struts2world</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.struts.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="basicstruts2" extends="struts-default">
<action name="index">
<result>/index.jsp</result>
</action>
<action name="output">
<result>/error.jsp</result>
</action>
<action name="hello" class="com.spring.action.HelloWorldAction" method="execute" >
<result name="success">/HelloWorld.jsp</result>
</action>
</package>
</struts>
3. index首页：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="alan" 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>Index Jsp</title>
</head>
<body>
Index Jsp!
<p><a href="<alan:url action='hello'/>">Hello World</a></p>
</body>
</html>
4.HelloWorld.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="alan" 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=ISO-8859-1">
<title>Hello World!</title>
</head>
<body>
<h2><alan:property value="messageStore.message" /></h2>
</body>
</html>
5.MessageStore.java model:
package com.spring.entity;
public class MessageStore {
private String message;
public MessageStore() {
setMessage("Hello Struts User");
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
6.HelloWorldAction.java Controller:
package com.spring.action;
import com.opensymphony.xwork2.ActionSupport;
import com.spring.entity.MessageStore;
public class HelloWorldAction extends ActionSupport {
private static final long serialVersionUID = 1L;
private MessageStore messageStore;
public String execute() throws Exception {
messageStore = new MessageStore() ;
return SUCCESS;
}
public MessageStore getMessageStore() {
return messageStore;
}
public void setMessageStore(MessageStore messageStore) {
this.messageStore = messageStore;
}
}
7.log4j.xml:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration PUBLIC "-//log4j/log4j Configuration//EN" "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p %c.%M:%L - %m%n"/>
</layout>
</appender>
<!-- specify the logging level for loggers from other libraries -->
<logger name="com.opensymphony">
<level value="DEBUG" />
</logger>
<logger name="org.apache.struts2">
<level value="DEBUG" />
</logger>
<!-- for all other loggers log only debug and above log messages -->
<root>
<priority value="INFO"/>
<appender-ref ref="STDOUT" />
</root>
</log4j:configuration>
8. build path:
/WEB-INF/classes
9.include Jar:
2.3.16 demo lib demo.jar
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