Java tutorial
/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package httpasync; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.nio.client.CloseableHttpAsyncClient; import org.apache.http.impl.nio.client.HttpAsyncClients; import java.util.concurrent.Future; /** * This example demonstrates a basic asynchronous HTTP request / response exchange. * Response content is buffered in memory for simplicity. */ public class AsyncClientHttpExchange { public static void main(final String[] args) throws Exception { CloseableHttpAsyncClient httpclient = HttpAsyncClients.createDefault(); try { httpclient.start(); HttpGet request = new HttpGet("http://www.apache.org/"); Future<HttpResponse> future = httpclient.execute(request, null); HttpResponse response = future.get(); System.out.println("Response: " + response.getStatusLine()); System.out.println("Response: " + response.getEntity().getContent()); System.out.println("Shutting down"); } finally { httpclient.close(); } System.out.println("Done"); } }