debug

src/main/java/edu/nju/controller/ExtraController.java

@@ -473,7 +473,7 @@ public class ExtraController {
 			Task task=extraService.saveTask(id);
 			if(task!=null) {
 				result.put("status", 200);
-				result.put("result",task);
+				result.put("result",new JSONObject(task));
 			}
 			else { result.put("status", 500); }
 			out.print(result);