SpringMVC学习 -- 使用 POJO 对象绑定请求参数值

本文转载自查看原文 2017-03-09 13:14 2369 SpringMVC

Spring MVC 会按请求参数名和 POJO 属性名进行自动匹配 , 自动为该对象填充属性值 , 支持级联属性。如：address.province。

 1 package com.itdoc.springmvc.entities;
 2 
 3 /**
 4  * @BLOG http://www.cnblogs.com/goodcheap
 5  * @DESCRIBE
 6  * @AUTHOR WángChéngDá
 7  * @DATE 2017-03-09 11:35
 8  */
 9 public class User {
10 
11     private String username;
12 
13     private int age;
14 
15     private String password;
16 
17     private String email;
18 
19     private Address address;
20 
21     public String getUsername() {
22         return username;
23     }
24 
25     public void setUsername(String username) {
26         this.username = username;
27     }
28 
29     public int getAge() {
30         return age;
31     }
32 
33     public void setAge(int age) {
34         this.age = age;
35     }
36 
37     public String getPassword() {
38         return password;
39     }
40 
41     public void setPassword(String password) {
42         this.password = password;
43     }
44 
45     public String getEmail() {
46         return email;
47     }
48 
49     public void setEmail(String email) {
50         this.email = email;
51     }
52 
53     public Address getAddress() {
54         return address;
55     }
56 
57     public void setAddress(Address address) {
58         this.address = address;
59     }
60 
61     @Override
62     public String toString() {
63         return "User{" +
64                 "username='" + username + '\'' +
65                 ", age=" + age +
66                 ", password='" + password + '\'' +
67                 ", email='" + email + '\'' +
68                 ", address=" + address +
69                 '}';
70     }
71 }

 1 package com.itdoc.springmvc.entities;
 2 
 3 /**
 4  * @BLOG http://www.cnblogs.com/goodcheap
 5  * @DESCRIBE
 6  * @AUTHOR WángChéngDá
 7  * @DATE 2017-03-09 11:37
 8  */
 9 public class Address {
10 
11     private String province;
12 
13     private String city;
14 
15     public String getProvince() {
16         return province;
17     }
18 
19     public void setProvince(String province) {
20         this.province = province;
21     }
22 
23     public String getCity() {
24         return city;
25     }
26 
27     public void setCity(String city) {
28         this.city = city;
29     }
30 
31     @Override
32     public String toString() {
33         return "Address{" +
34                 "province='" + province + '\'' +
35                 ", city='" + city + '\'' +
36                 '}';
37     }
38 }

 1 package com.itdoc.springmvc.entities;
 2 
 3 import org.springframework.stereotype.Controller;
 4 import org.springframework.web.bind.annotation.RequestMapping;
 5 import org.springframework.web.bind.annotation.RequestMethod;
 6 
 7 /**
 8  * @BLOG http://www.cnblogs.com/goodcheap
 9  * @DESCRIBE
10  * @AUTHOR WángChéngDá
11  * @DATE 2017-03-09 11:38
12  */
13 @Controller
14 public class TestPojo {
15 
16     public static final String SUCCESS = "success";
17 
18     @RequestMapping(value = "/getPojo", method = RequestMethod.POST)
19     public String getPojo(User user) {
20         System.out.println(user);
21         return SUCCESS;
22     }
23 }

 1 <%--
 2   User: WángChéngDá
 3   Date: 2017-03-08
 4   Time: 11:40
 5 --%>
 6 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 7 <html>
 8   <head>
 9     <title>$Title$</title>
10   </head>
11     <form action="/getPojo" method="post">
12         username:<input type="text" name="username"/>
13         <br>
14         password:<input type="password" name="password"/>
15         <br>
16         age:<input type="text" name="age"/>
17         <br>
18         email:<input type="text" name="email"/>
19         <br>
20         province:<input type="text" name="address.province"/>
21         <br>
22         city:<input type="text" name="address.city"/>
23         <br>
24         <input type="submit" value="submit"/>
25     </form>
26   </body>
27 </html>

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