struts2设置Action的数据方式

最新推荐文章于 2021-06-17 13:37:42 发布

原创最新推荐文章于 2021-06-17 13:37:42 发布 · 413 阅读

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#struts #struts2.0 #Action数据属性 #ActionSupport

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本文介绍Struts2框架中Action设置数据的两种方法：属性驱动和模型驱动。通过示例展示了如何使用这两种方法来处理用户登录逻辑。

Action设置数据

第一种方式：属性驱动(FieldDriven)

    A:基本数据类型

    public class UserAction extends ActionSupport{

   /**
   * 基本数据类型
   */

   private String userName;

   private String password;

   private User user = new User();

   private UserService userService = new UserService();


   public String getUserName() {
       return userName;
   }

   public void setUserName(String userName) {
       this.userName = userName;
   }

   public String getPassword() {
       return password;
   }

   public void setPassword(String password) {
       this.password = password;
   }

   private static final long serialVersionUID = 1L;


   public String execute() throws Exception{

       user.setUsername(userName);
       user.setPassword(password);
       if(userService.login(user)){


           return SUCCESS;
       }else{
           return ERROR;
       }

   }

}

<%@ 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="hello" method="post">
       用户名：<input type="text" name="userName"><br/>
       密码：<input type="text" name="password"></br>
           <input type="submit" value="提交">
   </form>
</body>
</html>

B:javaBean类型属性

public class UserAction2 extends ActionSupport{

   /**
   * javaBean类型属性
   */
   private User user;




   public User getUser() {
       return user;
   }

   public void setUser(User user) {
       this.user = user;
   }

   private UserService userService = new UserService();




   private static final long serialVersionUID = 1L;


   public String execute() throws Exception{


       if(userService.login(user)){


           return SUCCESS;
       }else{
           return ERROR;
       }

   }

}

<%@ 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="user" method="post">
       用户名：<input type="text" name="user.userName"><br/>
       密码：<input type="text" name="user.password"></br>
           <input type="submit" value="提交">
   </form>
</body>
</html>

第二种方式：模型驱动

public class UserAction3 extends ActionSupport implements ModelDriven<User>{

   /**
   * 模型驱动(ModelDriven)
   */

   private static final long serialVersionUID = 1L;


   private User user = new User();






   private UserService userService = new UserService();


   @Override
   public String execute() throws Exception{

       System.out.println("执行了UserAction3的默认方法");
       if(userService.login(user)){


           return SUCCESS;
       }else{
           return ERROR;
       }

   }

   @Override
   public User getModel() {
       // TODO Auto-generated method stub
       return user;
   }

}

<%@ 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">
       用户名：<input type="text" name="userName"><br/>
       密码：<input type="text" name="password"></br>
           <input type="submit" value="提交">
   </form>
</body>
</html>