1、struts.xml

<struts>
 <constant name="struts.devMode" value="false" /> 
 <constant name="struts.enable.DynamicMethodInvocation" value="true" />
 <constant name="struts.i18n.encoding" value="utf-8"></constant>
 <package name="user"  extends="struts-default">                 
        <action name="user" class="com.wxh.action.UserAction" >
            <result >/useraddsuccess.jsp</result>
        </action>         
  </package>     
</struts>

2、UserAction.java 

package com.wxh.action;

import com.wxh.model.User; 
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;


public  class UserAction extends ActionSupport implements ModelDriven<User>{	
	private static final long serialVersionUID = 1L;
	 
	private User user=new User();
	
	public String add(){
		System.out.println("name="+user.getName());
		System.out.println("age="+user.getAge());
		return SUCCESS;
	}
	public User getModel(){
		return user;
	}
	
}


3、User.java 

package com.wxh.model;

public class User {
	private String name;
	private int age;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
}


4、index.jsp 

<body>
<a href="user!add?name=a">添加用户</a>
</body>

Struts2 用ModelDriven接收参数_java