/*
* $Header: /home/cvs/jakarta-commons/httpclient/src/examples/TrivialApp.java,v 1.18 2004/06/12 22:47:23 olegk Exp $
* $Revision: 1.18 $
* $Date: 2004/06/12 22:47:23 $
*
* ====================================================================
*
* 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
* <http://www.apache.org/>.
*
* [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.auth.AuthScope;
import org.apache.commons.httpclient.methods.GetMethod;
/**
*
* This is a simple text mode application that demonstrates
* how to use the Jakarta HttpClient API.
*
* @author <a href="mailto:jsdever@apache.org">Jeff Dever</a>
* @author Ortwin Gl�ck
*/
public class TrivialApp
{
private static final void printUsage()
{
System.out.println();
System.out.println("Usage: java -classpath <classpath> [-Dorg.apache.commons.logging.simplelog.defaultlog=<loglevel>] TrivialApp <url> [<username> <password>]");
System.out.println("<classpath> - must contain the commons-httpclient.jar and commons-logging.jar");
System.out.println("<loglevel> - one of error, warn, info, debug, trace");
System.out.println("<url> - some valid URL");
System.out.println("<username> - username for protected page");
System.out.println("<password> - 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.getHttpConnectionManager().
getParams().setConnectionTimeout(5000);
//set the default credentials
if (creds != null) {
client.getState().setCredentials(AuthScope.ANY, creds);
}
String url = args[0];
HttpMethod method = null;
//create a method object
method = new GetMethod(url);
method.setFollowRedirects(true);
//} catch (MalformedURLException murle) {
// System.out.println("<url> 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<requestHeaders.length; i++){
System.out.print(requestHeaders[i]);
}
//write out the response headers
System.out.println("*** Response ***");
System.out.println("Status Line: " + method.getStatusLine());
Header[] responseHeaders = method.getResponseHeaders();
for (int i=0; i<responseHeaders.length; i++){
System.out.print(responseHeaders[i]);
}
//write out the response body
System.out.println("*** Response Body ***");
System.out.println(responseBody);
//clean up the connection resources
method.releaseConnection();
System.exit(0);
}
}