SpringMVC 6. 使用 POJO 对象绑定请求参数值
使用 POJO 对象绑定请求参数值
SpringMVC 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.provice、user.address.tel 等
cotroller类:
@RequestMapping("/springmvc")
@Controller
public class TestPOJO {
public static final String SUCCESS = "success" ;
@RequestMapping(value = "/testPOJO")
public String testPOJO(User user){
System.out.println("testPOJO:"+ user);
System.out.println("testPOJO");
return SUCCESS ;
}
}
entities类
- User.java
public class User {
private String username;
private String password;
private Integer age;
private String email;
private Address address;
public User(String username, String password, Integer age, String email) {
this.username = username;
this.password = password;
this.age = age;
this.email = email;
}
@Override
public String toString() {
return "User{" +
", username='" + username + '\'' +
", password='" + password + '\'' +
", age=" + age +
", email='" + email + '\'' +
", address=" + address +
'}';
}
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;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public User() {
}
public User(String username, String password, Integer age, String email) {
this.username = username;
this.password = password;
this.age = age;
this.email = email;
}
}
- Address .java
public class Address {
private String city ;
private String provice ;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getProvice() {
return provice;
}
public void setProvice(String provice) {
this.provice = provice;
}
@Override
public String toString() {
return "Address{" +
"city='" + city + '\'' +
", provice='" + provice + '\'' +
'}';
}
}
jsp页面:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>POJO</title>
</head>
<body>
<form action="/springmvc/testPOJO" method="post">
<br>
username:<input type="text" name="username">
<br>
password:<input type="password" name="password">
<br>
age:<input type="text" name="age">
<br>
email:<input type="text" name="email">
<br>
city:<input type="text" name="address.city">
<br>
provice:<input type="text" name="address.provice">
<br>
<input type="submit" value="submit">
</form>
</body>
</html>
上一篇:SpringMVC 5. RequestParam,RequestHeader,CookieValue 注解
下一篇:SpringMVC 7. 使用 Servlet API 作为入参