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>

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

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