Jersey: Print the actual request

问题

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).

回答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).

回答2:

@ivan.cikic's answer is for Jersey 1.x. Here's how you do it in Jersey 2.x:

import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.filter.LoggingFilter;
import org.json.JSONException;
import org.json.JSONObject;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.MediaType;

...

        ClientConfig config = new ClientConfig();

        Client client = ClientBuilder.newClient(config);
        client.register(new LoggingFilter());

This is irrelevant but I just have to complain: The new LoggingFilter is really annoying because it forces you to use Java Util Logging. It would be better if it gave me control over the logger. Seems like a step backwards in design.

回答3:

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.

来源：https://stackoverflow.com/questions/6860661/jersey-print-the-actual-request

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