Bila hendak menggunakan anotasi @JsonAutoDetect dalam Java?

Anotasi

@JsonAutoDetect boleh digunakan di peringkat kelas untuk mengatasi keterlihatan sifat kelas semasa penyerialisasian dan penyahserialisasian. Kita boleh menggunakan sifat-sifat seperti "creatorVisibility", "fieldVisibility", "getterVisibility", "setterVisibility" untuk menetapkan keterlihatan >" dan "isGetterVisibility". Kelas Json itu boleh ditakrifkan sepertiJson.

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import com.fasterxml.jackson.annotation.*;
import com.fasterxml.jackson.databind.*;
import java.io.*;
public class JsonAutoDetectTest {
   public static void main(String[] args) throws IOException {
      Address address = new Address("Madhapur", "Hyderabad", "Telangana");
      Name name = new Name("Raja", "Ramesh");
      Student student = new Student(address, name, true);
      ObjectMapper mapper = new ObjectMapper();
      String jsonString = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(student);
      System.out.println("JSON: " + jsonString);
   }
}
// Address class
class Address {
   private String firstLine;
   private String secondLine;
   private String thirdLine;
   public Address(String firstLine, String secondLine, String thirdLine) {
      this.firstLine = firstLine;
      this.secondLine = secondLine;
      this.thirdLine = thirdLine;
   }
   public String getFirstLine() {
      return firstLine;
   }
   public String getSecondLine() {
      return secondLine;
   }
   public String getThirdLine() {
      return thirdLine;
   }
}
// Name class
class Name {
   private String firstName;
   private String secondName;
   public Name(String firstName, String secondName) {
      this.firstName = firstName;
      this.secondName = secondName;
   }
   public String getFirstName() {
      return firstName;
   }
   public String getSecondName() {
      return secondName;
   }
}
// Student class
@JsonAutoDetect(fieldVisibility = JsonAutoDetect.Visibility.ANY)
class Student {
   private Address address;
   private Name name;
   private Boolean isActive;
   public Student(Address address, Name name, Boolean isActive) {
      this.address = address;
      this.name = name;
      this.isActive = isActive;
   }
}

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