CloseableHttpClient apache http客户端

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 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

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 * with the License.  You may obtain a copy of the License at

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package org.apache.http.examples.client;


import java.util.ArrayList;
/*
nowjava 提供
*/

import java.util.List;


import org.apache.http.HttpEntity;

import org.apache.http.NameValuePair;

import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.CloseableHttpResponse;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.CloseableHttpClient;

import org.apache.http.impl.client.HttpClients;//时 代 J a v a 公 众 号 - nowjava.com 提供

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.util.EntityUtils;


public class QuickStart {


    public static void main(String[] args) throws Exception {

        CloseableHttpClient httpclient = HttpClients.createDefault();

        try {

            HttpGet httpGet = new HttpGet("http://targethost/homepage");

            CloseableHttpResponse response1 = httpclient.execute(httpGet);

            // The underlying HTTP connection is still held by the response object

            // to allow the response content to be streamed directly from the network socket.

            // In order to ensure correct deallocation of system resources

            // the user MUST call CloseableHttpResponse#close() from a finally clause.

            // Please note that if response content is not fully consumed the underlying

            // connection cannot be safely re-used and will be shut down and discarded

            // by the connection manager.

            try {

                System.out.println(response1.getStatusLine());

                HttpEntity entity1 = response1.getEntity();

                // do something useful with the response body

                // and ensure it is fully consumed

                EntityUtils.consume(entity1);

            } finally {

                response1.close();

            }


            HttpPost httpPost = new HttpPost("http://targethost/login");

            List<NameValuePair> nvps = new ArrayList<NameValuePair>();

            nvps.add(new BasicNameValuePair("username", "vip"));

            nvps.add(new BasicNameValuePair(