How do I POST a Pojo with Jersey Client without manually convert to JSON?

Question

I have a working json service which looks like this:

@POST
@Path(\"/{id}/query\")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(JSON)
public ListWrapper qu         


        

Answer 1

The WebResource.entity(...) method doesn't alter your webResource instance... it creates and returns a Builder object that holds the change. Your call to .post is typically performed from a Builder object rather than from the WebResource object. That transition is easily obscured when all the requests are chained together.

public void sendExample(Example example) {
    WebResource webResource = this.client.resource(this.url);
    Builder builder = webResource.type(MediaType.APPLICATION_JSON);
    builder.accept(MediaType.APPLICATION_JSON);
    builder.post(Example.class, example);
    return;
}

Here's the same example using chaining. It's still using a Builder, but less obviously.

public void sendExample(Example example) {
    WebResource webResource = this.client.resource(this.url);
    webResource.type(MediaType.APPLICATION_JSON)
      .accept(MediaType.APPLICATION_JSON)
      .post(Example.class, example);
    return;
}