Question

我的客户端javascript应用程序使用backbone.js。这是我发布JSON的地方：

function testREST() {
    var model;
    cfd.init($('#email').val() + ':');

    model = new cfd.UserModel({
        email: 'test@example.com',
        fName: 'Test',
        lName: 'Dude',
        heardHow: 21,
        isDeleted: 0
    });

    model.save();
}

这是POST到我的控制器，但由于控制器参数而获得400.

这是JSON有效负载：

{ "email" : "test@example.com",
  "fName" : "Test",
  "heardHow" : 21,
  "isDeleted" : 0,
  "lName" : "Dude"
}

这是控制器：

@Controller
public class PostController {

    @Inject
    private UserRepository users;

    @RequestMapping(value = "/app/user", method = RequestMethod.POST)
    public @ResponseBody void insertUser(@RequestBody User user) {
        System.out.println("POST SAYS HI: " + user.getfName());
        users.save(user);
    }
}

如果我删除：

@RequestBody User user

但我自然需要它。

用户类：

@Entity
@Table(name="users")
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name="id")
    private long id;

    @Column(name="email")
    private String email = "";

    @Column(name="fname")
    private String fName = "";

    @Column(name="lname")
    private String lName = "";

    @Column(name="heardhow")
    private int heardHow = 0;

    @Column(name="isdeleted")
    private boolean isDeleted = false;

    public User() {

    }

    public long getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getEmail() {
        return email;
    }

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

    public String getfName() {
        return fName;
    }

    public void setfName(String fName) {
        this.fName = fName;
    }

    public String getlName() {
        return lName;
    }

    public void setlName(String lName) {
        this.lName = lName;
    }

    public int getHeadHow() {
        return heardHow;
    }

    public void setHeadHow(int headHow) {
        this.heardHow = headHow;
    }

    public boolean isDeleted() {
        return isDeleted;
    }

    public void setDeleted(boolean isDeleted) {
        this.isDeleted = isDeleted;
    }
}

我有以下maven依赖项：

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>         
</dependency>

我还在spring-config.xml中包含以下内容：

<mvc:annotation-driven />

我正在模仿我的实现：

http://docs.spring.io/spring/docs/4.0.0.RELEASE/spring-framework-reference/htmlsingle/#mvc-ann-requestmapping-consumes

如何解决此问题？

Answer 1

您的User课程中有拼写错误。属性headHow应为heardHow。 JSON使用属性heardHow。错误可能导致杰克逊映射器在数据绑定时失败 - 导致400。

更新：当原始问题包含User

的代码时，我回答了此问题

Spring mvc控制器没有将POST'd JSON映射到对象

1 个答案: