home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

What this is

This file 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.

Other links

The source code

/*
 * $Header: /home/cvs/jakarta-commons/httpclient/src/examples/TrivialApp.java,v 1.13.2.1 2004/02/22 18:21:12 olegk Exp $
 * $Revision: 1.13.2.1 $
 * $Date: 2004/02/22 18:21:12 $
 *
 * ====================================================================
 *
 *  Copyright 2002-2004 The Apache Software Foundation
 *
 *  Licensed 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
 * .
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */

import java.io.IOException;

import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.methods.GetMethod;

/**
 *
 * This is a simple text mode application that demonstrates
 * how to use the Jakarta HttpClient API.
 *
 * @author Jeff Dever
 * @author Ortwin Glück
 */
public class TrivialApp
{

    private static final void printUsage()
    {
        System.out.println();
        System.out.println("Usage: java -classpath  [-Dorg.apache.commons.logging.simplelog.defaultlog=] TrivialApp  [ ]");
        System.out.println(" - must contain the commons-httpclient.jar and commons-logging.jar");
        System.out.println(" - one of error, warn, info, debug, trace");
        System.out.println(" - some valid URL");
        System.out.println(" - username for protected page");
        System.out.println(" - password for protected page");
        System.out.println();
    }

    public static void main(String[] args)
    {
        if ((args.length != 1) && (args.length != 3)) {
            printUsage();
            System.exit(-1);
        }

        Credentials creds = null;
        if (args.length >= 3) {
            creds = new UsernamePasswordCredentials(args[1], args[2]);
        }

        //create a singular HttpClient object
        HttpClient client = new HttpClient();

        //establish a connection within 5 seconds
        client.setConnectionTimeout(5000);

        //set the default credentials
        if (creds != null) {
            client.getState().setCredentials(null, null, creds);
        }

        String url = args[0];
        HttpMethod method = null;

        //create a method object
            method = new GetMethod(url);
            method.setFollowRedirects(true);
            method.setStrictMode(false);
        //} catch (MalformedURLException murle) {
        //    System.out.println(" argument '" + url
        //            + "' is not a valid URL");
        //    System.exit(-2);
        //}

        //execute the method
        String responseBody = null;
        try{
            client.executeMethod(method);
            responseBody = method.getResponseBodyAsString();
        } catch (HttpException he) {
            System.err.println("Http error connecting to '" + url + "'");
            System.err.println(he.getMessage());
            System.exit(-4);
        } catch (IOException ioe){
            System.err.println("Unable to connect to '" + url + "'");
            System.exit(-3);
        }


        //write out the request headers
        System.out.println("*** Request ***");
        System.out.println("Request Path: " + method.getPath());
        System.out.println("Request Query: " + method.getQueryString());
        Header[] requestHeaders = method.getRequestHeaders();
        for (int i=0; i


my book on functional programming

 

new blog posts

 

Copyright 1998-2019 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.