Jersey: Print the actual request

Question

How can I view the actual request that Jersey generates and sends to the server? I am having issues with a particular request and the fellow running the webserver asked to see the full request (with headers and the such).

Answer 1

If you're just using Jersey Client API, LoggingFilter (client filter) should help you:

Client client = Client.create(); client.addFilter(new LoggingFilter(System.out)); WebResource webResource = client.resource("http://localhost:9998/"); ClientResponse response = webResource.accept(MediaType.APPLICATION_JSON)                                          .get(ClientResponse.class); 

Otherwise, you can again log both request and response on server using other LoggingFilter (container filter).

Answer 2

Since Jersey 2.23, there's a LoggingFeature you could use. The following is a bit simplified example, please note that you can register the feature on WebTarget as well.

Logger logger = Logger.getLogger(getClass().getName());  Feature feature = new LoggingFeature(logger, Level.INFO, null, null);  Client client = ClientBuilder.newBuilder()         .register(feature)         .build();  Response response = client.target("https://www.google.com")         .queryParam("q", "Hello, World!")         .request().get(); 

JavaDoc of LoggingFeature says that the request "and/or" the response is logged lol. On my machine, both are logged.