集册 Java实例教程 使用HTTP client对需要用户身份验证的目标站点执行HTTP请求apache HTTP client

使用HTTP client对需要用户身份验证的目标站点执行HTTP请求apache HTTP client

欢马劈雪     最近更新时间:2020-01-02 10:19:05

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使用HttpClient对需要用户身份验证的HTTP站点的目标站点执行HTTP请求
/** 
 来自 n o w    j a v a  . c o m**/

/*

 * --------------------------------------------------------------------

 * 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 org.apache.http.examples.client;


import org.apache.http.auth.AuthScope;

import org.apache.http.auth.UsernamePasswordCredentials;

import org.apache.http.client.CredentialsProvider;

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 against

 * a target site that requires user authentication.

 */

public class ClientAuthentication {/* 来 自 n o w j a v a . c o m - 时  代  Java*/


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

        CredentialsProvider credsProvider = new BasicCredentialsProvider();

        credsProvider.setCredentials(new AuthScope("localhost", 443),

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

        CloseableHttpClient httpclient = HttpClients.custom()

                .setDefaultCredentialsProvider(credsProvider).build();

        try {

            HttpGet httpget = new HttpGet("http://localhost/");


            System.out.println("Executing request "

                    + httpget.getRequestL
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