A message body writer for Java class not found

Question

I am new to using JAX-RS and wrote a sample application that outputs a json object. but I am getting an exception. Here is my code:

@Path(\"/hello\")
public          


        

Answer 1

Working with Jersey 1.8, I was getting the same error while creating a JSON object and hitting a REST API from client side.

If you are facing issue at server side then, make sure that you have correctly included jersey-json.jar in classpath and mapped correct init-param in web.xml as mentioned in other answers.

For Client Side

As per Jersey 1.8 documentation, the following snippet shows how to use the POJO JSON mapping feature on the client side:

 ClientConfig clientConfig = new DefaultClientConfig();
 clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING,Boolean.TRUE);
 Client client = Client.create(clientConfig);