how to send json object from REST client using javax.ws.rs.client.WebTarget

天涯浪子 提交于 2019-11-27 21:58:35
Paul Samsotha

There are two different Jersey major versions, 1.x and 2.x, You seems to be trying to use a combination of both, which won't work. The 2.x versions don't have some classes as in 1.x and vice versa.

If you want to use Jersey 2.x, then you should be using Response, rather than ClientResponse

Response response = target.request().put(Entity.json(friend));
                                        // .json == automatic 'application/json'

Basic breakdown.

  • Calling request() on WebTarget returns an Invocation.Buidler

    Invocation.Builder builder = target.request();
    
  • Once we call put, we get back a Response

    Response response = builder.put(Entity.json(friend));
    
  • To extract a known type from the response, we could use readEntity(Class type)

    String responseString = response.readEntity(String.class);
    response.close();
    
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