Struts2&&Velocity

Struts2与Velocity集成很简单,只要在返回类型中声明为：velocity就行了
具体步骤如下
1 将Struts2与Velocity的jar包拷贝到WEB-INF/lib下
Struts2 jar:
http://dl.iteye.com/topics/download/cf0b662c-4513-311a-b0aa-5859c52b4c74
Velocity jar:
http://dl.iteye.com/topics/download/4afc2415-e3fa-3617-aac2-76e08bea157f
2 在WEB.xml声明Struts2的过滤器：

<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>    

3 在Struts.xml声明如下

<?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>  
    <package name="hello" extends="struts-default" namespace="/">        
        <action name="myVelocity" class="web.VelocityAction">  
            <result type="velocity">/templates/demo.vm</result>  
        </action>  
   </package>   
</struts> 

一 环境：Win7 64 + Eclipse3.7 + Tomcat6 + JDK1.6
二 各页面代码如下：
1 index.jsp

 <a href="<s:url action="myVelocity"/>">Velocity</a> <br>

2 demo.vm与Velocity之WEB(Object,List,Map)
http://liuzidong.iteye.com/blog/1308261是一样的
3 VelocityAction.java

package web;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import service.UserService;
import bean.User;

import com.opensymphony.xwork2.ActionSupport;

public class VelocityAction extends ActionSupport{   
	
    private static final long serialVersionUID = 1L;      
    private String userName = null;  
    private int userAge = 0;
    private String userBlog = null;
    private User user = new User();
    private List list = new ArrayList();
    private List<User> users = new ArrayList<User>();  
    private Map map = new HashMap();
    private UserService userService = new UserService();
    private Map<String,User> userMap = new HashMap<String,User>(); 
    
    
    public List<User> getUsers() {
		return users;
	}
	public int getUserAge() {
		return userAge;
	}
	public void setUserAge(int userAge) {
		this.userAge = userAge;
	}
	public String getUserBlog() {
		return userBlog;
	}
	public void setUserBlog(String userBlog) {
		this.userBlog = userBlog;
	}
	public User getUser() {
		return user;
	}
	public void setUser(User user) {
		this.user = user;
	}
	public List getList() {
		return list;
	}
	public void setList(List list) {
		this.list = list;
	}
	public Map getMap() {
		return map;
	}
	public void setMap(Map map) {
		this.map = map;
	}
	public UserService getUserService() {
		return userService;
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
	public void setUsers(List<User> users) {
		this.users = users;
	}
	public Map<String, User> getUserMap() {
		return userMap;
	}
	public void setUserMap(Map<String, User> userMap) {
		this.userMap = userMap;
	}
	@Override  
    public String execute() throws Exception {  
		
		userName = "欢迎天涯";  	        
        String userName = "咫尺天涯";  
        int userAge = 30;  
        userBlog = "http://liuzidong.iteye.com/";  
        double money = 3999.89;          
        user =  new User(userAge,userName,userBlog,money,true);          
        
        list.add("天涯");  
        list.add(30);  
        list.add(money);    
        
        map.put("1", "a");  
        map.put("2", "b");  
        map.put("3", "c");   
        
        users.add(new User(userAge,userName,userBlog,money,true));  
        users.add(new User(18,"天涯",userBlog,646.89,true));  
        users.add(new User(32,"jack",userBlog,2323.45,false));    
        
        userMap.put("1",new User(23,"david",userBlog,money,true));  
        userMap.put("2",new User(18,"天涯",userBlog,646.89,true));  
        userMap.put("3",new User(32,"jack",userBlog,2323.45,false));          
        return SUCCESS;  
    }
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}  	
}  

工程文件见附件