java - 发布到restController时不支持内容类型'application/json; charset = UTF-8'

由于我在模型中添加了自关系，因此仅在此控制器中发生了此问题。

我阅读并在其他帖子和Google中搜索，所有解决方案似乎都有效。

我尝试设置@JsonIdentityInfo，添加@JsonBackReference和@JsonManagedReference，此标记的顺序相反，将消耗添加到rest方法，但是任何方法都可以

模型：

@Entity

@JsonIdentityInfo(
  generator = ObjectIdGenerators.PropertyGenerator.class,
  property = "code")

@Table (name = "EP7_TRS_CODIGOS")
public class Code implements Serializable {

    private static final long serialVersionUID = 2L;

    @Id
    @Column (name = "COD_CODIGO")
    private String code;

    @Column (name = "DES_CODIGO")
    private String description;

    @Column (name = "COD_TIPO")
    private String type;

    @JsonManagedReference
    @ManyToOne
    @JoinColumn (name = "ID_ORIGEN", referencedColumnName = "ID_ORIGEN")
    private Origin origin;

    @JsonBackReference
    @ManyToOne
    @JoinColumn (name="COD_CODIGO_OBJ", referencedColumnName = "COD_CODIGO")
    private Code parent;

    @JsonManagedReference
    @OneToMany (mappedBy = "parent", fetch = FetchType.LAZY)
    private List<Code> sons;

控制器：

@PostMapping(value = "/code",
    consumes = MediaType.APPLICATION_JSON_UTF8_VALUE,
    produces = {MediaType.APPLICATION_JSON_UTF8_VALUE})
public ResponseEntity<Code> saveOrUpdateCode (@RequestHeader HttpHeaders httpHeaders, @RequestBody Code code){
    logger.info(">>>> Entra en el controlador saveOrUpdateCode");
    if (httpHeaders == null || !authorized(httpHeaders)) {
        logger.error(">>>> Error de autentificacion");
        return new ResponseEntity<>(HttpStatus.UNAUTHORIZED);
    }
    return new ResponseEntity<>(cs.save(code), HttpStatus.CREATED);
}

原产地类别

@Entity
// @JsonIdentityInfo(
//   generator = ObjectIdGenerators.PropertyGenerator.class,
//   property = "id")
@Table (name = "EP7_TRS_ORIGEN")
public class Origin implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @Column (name = "ID_ORIGEN")
    private int id;

    @Column (name = "DES_ORIGEN")
    private String description;

    @Column (name = "COD_TIPO")
    private String type;

    @JsonBackReference
    @OneToMany (targetEntity=Code.class, mappedBy="origin", fetch = FetchType.LAZY)
    private List<Code> codes;

最佳答案

发送帖子请求时，您需要添加标头Content-type和值application/json。另外，您应该从@JsonManagedReference类中删除Origin。

关于java - 发布到restController时不支持内容类型'application/json; charset = UTF-8'，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/57522746/