Java – spring does not send all the fields in the JSON response

My POJO:

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;
import javax.persistence.Table;

import lombok.Data;


@Entity
@Table(name="user_linked_email")
@IdClass(UserLinkedEmailKey.class)
@Data
public class UserLinkedEmail implements Serializable {


    /**
     * serialVersionUID
     */
    private static final long serialVersionUID = 1L;

    @Id
    private Integer userId;
    @Id
    private String linkedEmail;


    /**
     * The Following are appearing in JSON response
     */
    private boolean status;

    private boolean preferredFlag;

}

Userlinkedemailkey class:

public class UserLinkedEmailKey implements Serializable {
    /**
     * serialVersionUID
     */
    private static final long serialVersionUID = 1L;

    private Integer userId;
    private String linkedEmail;
}

And my controller clip:

public org.springframework.http.ResponseEntity<?> getLinkedEmails(@PathVariable(value = "userId") Integer zepoUserId) {


        try {
            List<UserLinkedEmail> linkedEmails = userService.getLinkedEmails(zepoUserId);


            //linkedEmails till this point has all 4 fields

            return new ResponseEntity<List<UserLinkedEmail>>(linkedEmails,HttpStatus.OK);

        } catch (Exception e) {
            //
        }

The response in JSON is as follows:

[
  {
    "status": false,"preferredFlag": true
  },{
    "status": true,"preferredFlag": false
  },"preferredFlag": false
  }
]

Although spring data JPA returns the entire object from the repository, why are the other two fields, userid and linkedeemail, not displayed?

Solution

By default, spring data rest no longer groups @ ID properties as JSON

This can be done using the exposure ID – check spring rest

Similar posts are explained in detail here – id not marshaled to JSON

I recommend using intermediate response classes instead of converting entities to JSON