Spring: return @ResponseBody "ResponseEntity<List<JSONObject>>"

Question

In controller I create json array. If I return List<JSONObject> it is ok:

@RequestMapping(value="", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE) public @ResponseBody List<JSONObject> getAll() {     List<Entity> entityList = entityManager.findAll();      List<JSONObject> entities = new ArrayList<JSONObject>();     for (Entity n : entityList) {         JSONObject entity = new JSONObject();         entity.put("id", n.getId());         entity.put("address", n.getAddress());         entities.add(entity);     }     return entities; } 

but I need to return JSON array and HTTP status code:

@RequestMapping(value="", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE) public @ResponseBody ResponseEntity<List<JSONObject>> getAll() {     List<Entity> entityList = entityManager.findAll();      List<JSONObject> entities = new ArrayList<JSONObject>();     for (Entity n : entityList) {         JSONObject Entity = new JSONObject();         entity.put("id", n.getId());         entity.put("address", n.getAddress());         entities.add(entity);     }     return new ResponseEntity<JSONObject>(entities, HttpStatus.OK); // XXX } 

Eclipse see error in XXX line:

Multiple markers at this line     - The constructor ResponseEntity<JSONObject>(List<JSONObject>, HttpStatus) is undefined     - Type mismatch: cannot convert from ResponseEntity<JSONObject> to       ResponseEntity<List<JSONObject>>     - Type mismatch: cannot convert from ResponseEntity<JSONObject> to JSONObject 

How can I return json+http reply? There is my working code for returning one json object + http status code:

@RequestMapping(value="/{address}", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE) public @ResponseBody ResponseEntity<JSONObject> getEntity(@PathVariable("address") int address) {     Entity n = entityManager.findByAddress(address);     JSONObject o = new JSONObject();     o.put("id", n.getId());     o.put("address", n.getAddress());     return new ResponseEntity<JSONObject>(o, HttpStatus.OK); } 

Answer 1

Instead of

return new ResponseEntity<JSONObject>(entities, HttpStatus.OK); 

try

return new ResponseEntity<List<JSONObject>>(entities, HttpStatus.OK); 

Answer 2

Now I return Object. I don't know better solution, but it works.

@RequestMapping(value="", method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE) public @ResponseBody ResponseEntity<Object> getAll() {     List<Entity> entityList = entityManager.findAll();      List<JSONObject> entities = new ArrayList<JSONObject>();     for (Entity n : entityList) {         JSONObject Entity = new JSONObject();         entity.put("id", n.getId());         entity.put("address", n.getAddress());         entities.add(entity);     }     return new ResponseEntity<Object>(entities, HttpStatus.OK); }