Spring MVC 使用POJO对象绑定请求参数值

<form action="springmvc/testPOJO" method="post">
username: <input type="text" name="username"/>
<br/>
password: <input type="password" name="password"/>
<br/>
email: <input type="text" name="email"/>
<br/>
age: <input type="text" name="age"/>
<br/>
city: <input type="text" name="address.city"/>
<br/>
province: <input type="text" name="address.province"/>
<br/>
<input type="submit" value="Submit"/>
</form>

package com.hust.springmvc.entities;

public class User {
private String username;
private String password;

private String email;
private int age;

private Address address;

public Address getAddress() {
return address;
}

public void setAddress(Address address) {
this.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 String getEmail() {
return email;
}

public void setEmail(String email) {
this.email = email;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

@Override
public String toString() {
return "User [username=" + username + ",password=" + password + ",email=" + email + ",age=" + age + ",adress"
+ address + "]";
}
}

package com.hust.springmvc.entities;

public class Address {
private String province;
private String city;

public String getProvince() {
return province;
}

public void setProvince(String province) {
this.province = province;
}

public String getCity() {
return city;
}

public void setCity(String city) {
this.city = city;
}

@Override
public String toString() {
return "Address [province=" + province + ", city=" + city + "]";
}

}

package com.hust.springmvc1;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;

import com.hust.springmvc.entities.User;

@Controller
@RequestMapping("/springmvc")
public class SpringMVCTest {

private static final String SUCCESS = "success";

/**
* 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.city、address.province 等
*/
@RequestMapping("/testPOJO")
public String testPOJO(User user) {
System.out.println("testPOJO User: " + user);
return SUCCESS;
}

}