lombok@Getter的杰克遜注解不起作用

上課，資料進入地圖

@Getter
@ToString
@Builder
//@FieldDefaults(level = AccessLevel.PRIVATE, makeFinal = true)
//@JsonIgnoreProperties(value = {"firstName", "lastName"})
public class User {

//    @JsonProperty("id")
    private final UUID userUid;

    @JsonIgnore
    private final String firstName;
    @JsonIgnore
    private final String lastName;
    private final Gender gender;
    private final Integer age;
    private final String email;

    public enum Gender {
        MALE, FEMALE
    }

    public String getFullName() {
        return this.firstName   " "   this.lastName;
    }

    public int getDateOfBirth() {
        return LocalDate.now().minusYears(age).getYear();
    }

    public User(@JsonProperty("userUid") UUID userUid
            , @JsonProperty("firstName") String firstName
            , @JsonProperty("lastName") String lastName
            , @JsonProperty("gender") Gender gender
            , @JsonProperty("age") Integer age
            , @JsonProperty("email") String email) {
        this.userUid = userUid;
        this.firstName = firstName;
        this.lastName = lastName;
        this.gender = gender;
        this.age = age;
        this.email = email;
    }

    public static User newUser(UUID userUid, User user) {
        return User.builder()
                .userUid(userUid)
                .firstName(user.getFirstName())
                .lastName(user.getLastName())
                .gender(user.getGender())
                .age(user.getAge())
                .email(user.email)
                .build();
    }
}    

欄位上的@JsonIgnore 注釋不起作用，欄位顯示在回應中。
當我通過 @JsonIgnoreProperties 注釋類或在 getter 上添加注釋時，資料被隱藏。
而欄位上方的@JsonProperty一般會拋出500錯誤……原來用lombok @Getter的jackson注解不起作用，需要對getter進行注解，還是我做錯了什么？

uj5u.com熱心網友回復：

您可以分配 to 的屬性以便access能夠接收此屬性，但在序列化 POJO 時將其排除。@JsonPropertyJsonProperty.Access.WRITE_ONLY

@Getter
@ToString
@Builder
public static class User {
    
    private final UUID userUid;
    private final String firstName;
    private final String lastName;
    private final Gender gender;
    private final Integer age;
    private final String email;
    
    public User(@JsonProperty("userUid") UUID userUid,
                @JsonProperty(value = "firstName", access = JsonProperty.Access.WRITE_ONLY)
                    String firstName,
                @JsonProperty(value = "lastName", access = JsonProperty.Access.WRITE_ONLY)
                    String lastName,
                @JsonProperty("gender") Gender gender,
                @JsonProperty("age") Integer age,
                @JsonProperty("email") String email) {
        
        this.userUid = userUid;
        this.firstName = firstName;
        this.lastName = lastName;
        this.gender = gender;
        this.age = age;
        this.email = email;
    }
    
    // the rest code
}

使用示例：

String user = mapper.writerWithDefaultPrettyPrinter()
    .writeValueAsString(
        User.builder()
            .userUid(new UUID(1, 1))
            .firstName("firstName")
            .lastName("lastName")
            .gender(User.Gender.MALE)
            .age(1000)
            .email("[email protected]")
            .build()
    );
    
System.out.println(user);

輸出：

{
  "userUid" : "00000000-0000-0001-0000-000000000001",
  "gender" : "MALE",
  "age" : 1000,
  "email" : "[email protected]",
  "fullName" : "firstName lastName",
  "dateOfBirth" : 1022
}

注意：沒有屬性firstNameand lastName，而是fullName存在，因為Jackson 將其視為普通 getter的public方法（我確信這正是 OP 的初衷，但值得提請讀者注意getFullName()這個事實）

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