How to format JSON Response In Java Spring?

Question

I have a Response Class with the set of private fields. Front end developers asked me to send the response of a service in this JSON format. So far Response should in JSON format and like this

{
  "status": "SUCCESS",
  "message": {
    "code": "040",
    "description": "verified"
    },
  "qrContent": "aaa | bbb"

 }



        QrCodePaymentResponse response = new QrCodePaymentResponse();
         if (firstThree.equalsIgnoreCase(QRType.EZDYNAMIC.getDescription())) {
              axiPayQrCodePaymentService.ezCashDynamicQR(axiPayQrCodePayment,serviceContext);
              response.setStatus(RequestStatus.SUCCESS.getStatus());
              response.setMessage(----------------);
              response.setQrContent(returnValue.getQrContent);

    }

How to modify above code to send requested format? Thanks.

Sir its not the model its just a Dto whic includes private String code; private String description; private String qrContent; private String message; private String status; — L.Anush
– L.Anush, Commented Mar 10, 2019 at 16:12

Lakshan · Accepted Answer · 2019-03-11 07:21:42Z

1

use the spring RestController. it's methods return the data as a JSON format

QrCodePaymentResponse.java

public class QrCodePaymentResponse{
    private String response;
    private String qrContent;
    private Message message; 

    //set getters and setters
}

Message.java

public class Message{
    private String code;
    private String description;

    //set getters and setters
}

AppController.java

@RestController
public class AppController {

    @RequestMapping(value="/get", method=RequestMethod.GET)
    public QrCodePaymentResponse getPaymentResponse(){
        QrCodePaymentResponse response = new QrCodePaymentResponse();
        Message message = new Message();
        //set values to message
        if (firstThree.equalsIgnoreCase(QRType.EZDYNAMIC.getDescription())) {
            axiPayQrCodePaymentService.ezCashDynamicQR(axiPayQrCodePayment,serviceContext);
            response.setStatus(RequestStatus.SUCCESS.getStatus());
            response.setMessage(message);
            response.setQrContent(returnValue.getQrContent);
        }
        return response;
    }
}

edited Mar 11, 2019 at 7:21

answered Mar 10, 2019 at 16:06

Lakshan

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9 Comments

L.Anush Over a year ago

Sir, I just asked how to set values which return the format of given response body?

Lakshan Over a year ago

@L.Anush set the values to the response object in a general way. RestController convert this response object to json format. please refer above edited answer

L.Anush Over a year ago

If i set values like that will it return in this format? "status": "SUCCESS", "message": { "code": "040", "description": "verified" }, "qrContent": "aaa | bbb"

usman Over a year ago

change it to @RequestMapping(value="/get", method=RequestMethod.GET , produces= "application/json")

Lakshan Over a year ago

@usman no need to set a produces= "application/json" with @RestController. it return the json object. but if you work with @Controller, set a produces= "application/json" for return the data as a json format

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