第06讲 struts2的设置数据-模型驱动

1，在 HeadFirstStruts2chapter02 中，新建类UserAction3，实现ModelDriven。ModelDriven的缺点是只能加载一个bean。
import com.cruise.model.User;
import com.cruise.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class UserAction3 extends ActionSupport implements ModelDriven<User>{

    private UserService userService = new UserService();
    private User user = new User();


    @Override
    public String execute() throws Exception {

       System.out.println("执行了UserAction方法");
       Boolean login = userService.login(user);
       if(login){
           return SUCCESS;
       }else{
           return ERROR;
       }
    }

    @Override
    public User getModel() {
       return user;
    }
}
2，修改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>
<package name="suibiandingyi" extends="struts-default">
    <action name="hello" class="com.cruise.action.HelloWorldAction">
       <result name="success">helloworld.jsp</result>
    </action>
    <action name="hello2" class="com.cruise.action.HelloWorldAction2">
       <result name="success">helloworld.jsp</result>
    </action>
    <action name="user" class="com.cruise.action.UserAction">
       <result name="success">success.jsp</result>
       <result name="error">error.jsp</result>
    </action>
    <action name="user2" class="com.cruise.action.UserAction2">
       <result name="success">success.jsp</result>
       <result name="error">error.jsp</result>
    </action>
    <action name="user3" class="com.cruise.action.UserAction3">
       <result name="success">success.jsp</result>
       <result name="error">error.jsp</result>
    </action>
</package>

</struts>
3，新建login3.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="user3" method="post">
    userName:<input type="text" name="userName"/><br>
    password:<input type="text" name="password"/><br>
    <input type="submit" value="提交">
</form>
</body>
</html>
4，测试，
浏览器地址栏输入：http://localhost:8080/HeadFirstStruts2chapter02/login3.jsp测试

第06讲 struts2的设置数据-模型驱动

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