CODEWITHSUNDEEP
jsonspring
Evgenii
Evgenii

Reputation: 449

Spring ResponseEntity<JSONObject> HttpMediaTypeNotAcceptableException

I try to return a JSONObject when a GET request is sent.

The method

  @RequestMapping(value = "/{businessId}/{orderId}/{reportId}", method = RequestMethod.GET,
    produces = MediaType.APPLICATION_JSON_VALUE)
  @ResponseBody
  public ResponseEntity<JSONObject> getReport(@PathVariable("businessId") String businessId,
                                               @PathVariable("orderId") String orderId,
                                               @PathVariable("reportId") Long reportId) throws JSONException {
    return new ResponseEntity<JSONObject>(reportService.getReportJSON(), HttpStatus.OK);
  }

I get json from a file. The is a single json object there. In one line. I parse it to JSONObject like this

  fs = FileSystem.get(uri, conf);
  BufferedReader reader = null;
  reader = new BufferedReader(new InputStreamReader(fs.open(path)));
  line = reader.readLine();
  while (line != null) {
    jsonObjectList = new JSONObject(line);
    line = reader.readLine();
  }
  return jsonObjectList;

This is what my file looks like.

{"reportId":"1","description":"СегментацияпоПоливозраст","orderId":"357","businessId":"НашКлиент№1","tables":[{"name":"Мужчины","fields":[{"name":"0-17","type":"number"},{"name":"18-24","type":"number"},{"name":"25-34","type":"number"},{"name":"35-44","type":"number"},{"name":"45-54","type":"number"},{"name":"45-54","type":"number"},{"name":"45-54","type":"number"}],"data":[2571,5287,4587,7705,3675,3743,7423]},{"name":"Женщины","fields":[{"name":"0-17","type":"number"},{"name":"18-24","type":"number"},{"name":"25-34","type":"number"},{"name":"35-44","type":"number"},{"name":"45-54","type":"number"},{"name":"45-54","type":"number"},{"name":"45-54","type":"number"}],"data":[7552,3107,6477,4967,9106,7859,9060]},{"name":"Мужчиныиженщины","fields":[{"name":"0-17","type":"number"},{"name":"18-24","type":"number"},{"name":"25-34","type":"number"},{"name":"35-44","type":"number"},{"name":"45-54","type":"number"},{"name":"45-54","type":"number"},{"name":"45-54","type":"number"}],"data":[7552,3107,6477,4967,9106,7859,9060]}]}

I use postman to check my methods. This is the error I get

{
    "timestamp": 1504020107350,
    "status": 406,
    "error": "Not Acceptable",
    "exception": "org.springframework.web.HttpMediaTypeNotAcceptableException",
    "message": "Not Acceptable",
    "path": "/audpro/report/1/1/1"
}

I tried to create a jsonobject by hand and pass it, but got the same error

JSONObject response = new JSONObject();
response.put("id", 555);
response.put("message", "Provision successful!");
return new ResponseEntity<>(response, HttpStatus.OK);

This is the library I use.

import org.codehaus.jettison.json.JSONObject;

Why can't I return a jsonobject?

Upvotes: 5

Views: 23354

Answers (3)

Chandan Kumar
Chandan Kumar

Reputation: 21

You can better use toMap() function and then return it.

Sample code

return ResponseEntity.ok().contentType(MediaType.APPLICATION_JSON).body(jsonObject.toMap());

Upvotes: 0

Evgenii
Evgenii

Reputation: 449

Turns out I don't actually need JSONObject to get a json. I can return a String and it will be parsed as json. In the controller

  public ResponseEntity<String> getReport(@PathVariables) throws JSONException {
    return new ResponseEntity<>(reportService.getReportJSON(), HttpStatus.OK);
  }

And in the service I do

String json = line;
return json;

I'm still not sure about why returning a JSONObject is a no go though.

Upvotes: 1

Mohammed Abdullah
Mohammed Abdullah

Reputation: 175

Instead of returning direct JSONObject in RestController class, you can set the objects in one POJO class and return in RestController class. MediaType.APPLICATION_JSON_VALUE in the annotation level will take care of conversion.In Future if you want to send both xml and json, simply you can extend more MediaTypes in annotation level, so that it can support Multi MediaTypes. Just follow this example.

Also make sure your including below dependency for HttpMessageConversions: 

<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-mapper-asl</artifactId>
    <version>1.9.10</version>
</dependency>

Upvotes: 0

Related Questions