alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (ClientProxyAuthentication.java)

This example source code file (ClientProxyAuthentication.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

authscope, clientproxyauthentication, defaulthttpclient, exception, httpentity, httpget, httphost, httpresponse, usernamepasswordcredentials

The ClientProxyAuthentication.java example source code

/*
 * ====================================================================
 *
 *  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.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.params.ConnRoutePNames;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 * 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 {
        
        DefaultHttpClient httpclient = new DefaultHttpClient();

        httpclient.getCredentialsProvider().setCredentials(
                new AuthScope("localhost", 8080), 
                new UsernamePasswordCredentials("username", "password"));

        HttpHost targetHost = new HttpHost("www.verisign.com", 443, "https"); 
        HttpHost proxy = new HttpHost("localhost", 8080); 

        httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

        HttpGet httpget = new HttpGet("/");
        
        System.out.println("executing request: " + httpget.getRequestLine());
        System.out.println("via proxy: " + proxy);
        System.out.println("to target: " + targetHost);
        
        HttpResponse response = httpclient.execute(targetHost, httpget);
        HttpEntity entity = response.getEntity();

        System.out.println("----------------------------------------");
        System.out.println(response.getStatusLine());
        if (entity != null) {
            System.out.println("Response content length: " + entity.getContentLength());
        }
        if (entity != null) {
            entity.consumeContent();
        }
        
        // When HttpClient instance is no longer needed, 
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();        
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java ClientProxyAuthentication.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.