Jersey: 打印实际请求

如何查看 Jersey 生成并发送到服务器的实际请求？我有一个特定的请求和伙伴运行的网络服务器要求看到完整的请求(与头等)的问题。

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最佳答案

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).

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@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.

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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.

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All these answers are pretty close but they lack the setting to log the request and response body. At least with Jersey 2.30.1 this is how I accomplish logging the request and response including their respective bodies:

import javax.ws.rs.client.ClientBuilder;
import org.glassfish.jersey.logging.LoggingFeature;
import java.util.logging.Level;
import java.util.logging.Logger;


Logger logger = Logger.getLogger("LoggingFeature");
logger.setLevel(Level.ALL);
ClientBuilder.newClient()
.target("https://www.example.com")
.register(new LoggingFeature(
logger,
Level.ALL,
LoggingFeature.Verbosity.PAYLOAD_ANY,
8192))
.request()
.get();

Technically the Level.All and 8192 values could be null. I just provide them here to be concise.


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