AsyncHttpClient
Asynchronous Http and WebSocket Client library for Java
Example
You can also accomplish asynchronous (non-blocking) operation without using a Future if you want to receive and process the response in your handler:
import com.ning.http.client.*;
import java.util.concurrent.Future;
AsyncHttpClient asyncHttpClient = new AsyncHttpClient();
asyncHttpClient.prepareGet("http://www.ning.com/").execute(new AsyncCompletionHandler<Response>(){
@Override
public Response onCompleted(Response response) throws Exception{
// Do something with the Response
// ...
return response;
}
@Override
public void onThrowable(Throwable t){
// Something wrong happened.
}
});