Java tutorial
/* * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/examples/BasicAuthenticationExample.java,v 1.4 2004/06/12 22:47:23 olegk Exp $ * $Revision: 480424 $ * $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $ * ==================================================================== * * 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/>. * * [Additional notices, if required by prior licensing conditions] * */ import org.apache.commons.httpclient.HttpClient; import org.apache.commons.httpclient.UsernamePasswordCredentials; import org.apache.commons.httpclient.auth.AuthScope; import org.apache.commons.httpclient.methods.GetMethod; /** * A simple example that uses HttpClient to perform a GET using Basic * Authentication. Can be run standalone without parameters. * * You need to have JSSE on your classpath for JDK prior to 1.4 * * @author Michael Becke */ public class BasicAuthenticationExample { /** * Constructor for BasicAuthenticatonExample. */ public BasicAuthenticationExample() { super(); } public static void main(String[] args) throws Exception { HttpClient client = new HttpClient(); // pass our credentials to HttpClient, they will only be used for // authenticating to servers with realm "realm" on the host // "www.verisign.com", to authenticate against // an arbitrary realm or host change the appropriate argument to null. client.getState().setCredentials(new AuthScope("www.verisign.com", 443, "realm"), new UsernamePasswordCredentials("username", "password")); // create a GET method that reads a file over HTTPS, we're assuming // that this file requires basic authentication using the realm above. GetMethod get = new GetMethod("https://www.verisign.com/products/index.html"); // Tell the GET method to automatically handle authentication. The // method will use any appropriate credentials to handle basic // authentication requests. Setting this value to false will cause // any request for authentication to return with a status of 401. // It will then be up to the client to handle the authentication. get.setDoAuthentication(true); try { // execute the GET int status = client.executeMethod(get); // print the status and response System.out.println(status + "\n" + get.getResponseBodyAsString()); } finally { // release any connection resources used by the method get.releaseConnection(); } } }