SpringMVC——POJO对象绑定请求参数

使用POJO对象绑定请求参数值

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，支持级联属性 。如：dept.deptId、dept.address.tel

实例：user.java

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                + ", address=" + address + "]";    }}

Address.java

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 + "]";    }}

index.jsp

<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>

SpringMvcTest

@RequestMapping("/springmvc")@Controllerpublic class SpringMVCTest {    private static final String SUCCESS = "success";    @RequestMapping(value="/testPojo")    public String testPojo(User user){        System.out.println("testPojo:"+user);        return SUCCESS;    }}

运行结果

testPojo:User [username=zhansan, password=admin, email=[e-mail], age=11, address=Address [province=山西, city=太原]]