How do I return JSON in ResponseEntity?

To make a method in the Controller class return JSON in HTTP Response body we use @ResponseBody annotation. This annotation will tell Spring Framework, that the object returned from this method, should be serialized into JSON and returned in the HTTP response body.

What is a ResponseEntity?

ResponseEntity represents an HTTP response, including headers, body, and status. While @ResponseBody puts the return value into the body of the response, ResponseEntity also allows us to add headers and status code.

Is ResponseEntity required?

When to use ResponseEntity? ResponseEntity is used when you need to change HTTP headers or HTTP status code based upon your business logic or incoming request. ResponseEntity wraps the original object as its body which is optional. If you want to return an object or null, ResponseEntity will work in either way.

What is the difference between ResponseBody and ResponseEntity?

ResponseEntity<> is a generic class with a type parameter, you can specify what type of object to be serialized into the response body. @ResponseBody is an annotation, indicates that the return value of a method will be serialized into the body of the HTTP response.

How do I return JSON data in web API?

Get ASP.NET Web API To Return JSON Instead Of XML

  1. public static void Register(HttpConfiguration config)
  2. {
  3. config.Routes.MapHttpRoute(name: “DefaultApi”, routeTemplate: “api/{controller}/{id}”, defaults: new.
  4. {
  5. id = RouteParameter.Optional.
  6. });
  7. //To produce JSON format add this line of code.

How do you create a object of ResponseEntity?

Create a new ResponseEntity with the given status code, and no body nor headers. Create a new HttpEntity with the given headers and status code, and no body. Create a new ResponseEntity with the given body and status code, and no headers. Create a new HttpEntity with the given body, headers, and status code.

What is the use of @ResponseBody?

The @ResponseBody annotation tells a controller that the object returned is automatically serialized into JSON and passed back into the HttpResponse object. In the developer console of our browser or using a tool like Postman, we can see the following response: {“text”:”Thanks For Posting!!!”}

How do I read a JSON file in REST Web services?

How to Parse JSON Data From a REST API Using a Simple JSON Library

  1. Step 1) Pass the desired URL as an object:
  2. Step 2) Type cast the URL object into a HttpURLConnection object.
  3. Step 5) Get the corresponding response code.

How do you create and return a JSON object in Java?

How to return a json object from java to javascript (cordova)

  1. import org.
  2. JSONObject item = new JSONObject(); item.
  3. JSONArray jsonArray = new JSONArray(); jsonArray.
  4. String response = “myinformation”; PluginResult result = new PluginResult(PluginResult.