使用HTTP client通过通过身份验证代理apache HTTP客户端隧道的安全连接执行HTTP请求

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 * 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

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 * "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.

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 *

 * This software consists of voluntary contributions made by many

 * individuals on behalf of the Apache Software Foundation.  For more

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 * <http://www.apache.org/>.

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 */

package org.apache.http.examples.client;


import org.apache.http.HttpHost;
/*
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*/

import org.apache.http.auth.AuthScope;

import org.apache.http.auth.UsernamePasswordCredentials;

import org.apache.http.client.CredentialsProvider;

import org.apache.http.client.config.RequestConfig;

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

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

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

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

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

import org.apache.http.util.EntityUtils;


/**

 * A simple example that uses HttpClient to execute an HTTP request

 * over a secure connection tunneled through an authenticating proxy.

 */

public class ClientProxyAuthentication {


    public static void main(String[] args) throws Exception {
    /*
    nowjava.com - 时  代  Java
    */

        CredentialsProvider credsProvider = new BasicCredentialsProvider();

        credsProvider.setCredentials(new AuthScope("localhost", 8080),

                new UsernamePasswordCredentials("username", "password"));

        CloseableHttpClient httpclient = HttpClients.custom()

                .setDefaultCredentialsProvider(credsProvider).build();

        try {

            HttpHost target = new HttpHost("www.verisign.com", 443, "https");

            HttpHost proxy = new HttpHost("localhost", 8080);


            RequestConfig config = RequestConfig.custom().setProxy(proxy)

                    .build();

            HttpGet httpget = new HttpGet("/");

            httpget.setConfig(config);


            System.out.println("Executing request "

                    + httpget.getRequestLine() +