Solved

Java Exception- "java.io.IOException: Server returned HTTP response code: 401 for URL..."

Posted on 2008-11-03
6
4,966 Views
Last Modified: 2013-11-22
Hi experts,
I have encountered with a problem. I have given my code below. When I run that code, I get the following exception

>>java.io.IOException: Server returned HTTP response code: 401 for URL: https://LOGIN:PASSWORD@www.mybooo.com/core/Dd002wW.php
      at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
      at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
      at GetData.readBuildRequest(GetData.java:98)
      at GetData.sendRequestString(GetData.java:48)
      at GetData.main(GetData.java:118)


When I access it by giving appropriate username and pasword in browser, it works(https://LOGIN:PASSWORD@mybooo.com/core/Dd002wW.php).. But not with this java code. I know this is related to some authentication problem. But how to overcome this?
Any help in this regard will be well appreciated with points.
Warm Regards,
Sreejith

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import javax.net.ssl.HttpsURLConnection;
 
 
public class GetData
{
	public static final String UTF8_ENCODING = "UTF-8";
	public static String username;
	public static String password;
	private static String urlCheck = "";
	private static final String POST = "POST";
	public String setCSVString(String username, String password)
	{
		String csvString = "";
		//csvString = "{usr:'" + username + "',pwd:'"+password+"'}";
		urlCheck = "https://" + username +":"+ password + "@www.mybooo.com/core/Dd002wW.php";
		System.out.println("This is the csvString"+csvString);
		System.out.println("chaine non encodee : " + csvString);
		return csvString;	
	}
 
	public String setEncodedCSVString(String csvString)
	{
		String encodedCsvString="";
		//try 
		{
			encodedCsvString = URLEncoder.encode("data={action:'contacts',args:''}");// + URLEncoder.encode(csvString, UTF8_ENCODING);
			System.out.println("chaine encodee : " + encodedCsvString);
		} 
		//catch (UnsupportedEncodingException e) { e.printStackTrace();}
		
		return encodedCsvString;
		
	}
	public static String sendRequestString(String encodedCsvString)
	{
		HttpsURLConnection connection = null;
		connection = sendRequest(urlCheck,encodedCsvString);
		
		// Reponse du serveur
		String RecupFile = readBuildRequest(connection);
		
		System.out.println("recupFile : " + RecupFile);
		String recupFileSub = RecupFile.substring(RecupFile.indexOf("'")+1, RecupFile.lastIndexOf("'"));
		//String RecupFileFinal = recupFileSub.replaceAll("\"", "");
		String RecupFileFinal = recupFileSub;
		connection.disconnect();
		connection =null;
		return RecupFileFinal;
	}
	public static HttpsURLConnection sendRequest(String stringURL,String data)
	{
		HttpsURLConnection connection=null ;
		// Creation de la connection
		try{
 
			//String def = URLEncoder.encode(data);
			//log.info("def : " + def);
		URL url = new URL(stringURL);
		connection = (HttpsURLConnection)url.openConnection();
 
	//	URLConnection connection = url.openConnection();
		connection.setDoOutput(true);
		connection.setDoInput(true);
		connection.setRequestMethod(POST);
		
		//envoi de la requête
		OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
 
		writer.write(data);
		writer.flush();
		writer.close();
		
		}
		catch(MalformedURLException mue)
		{ 
			mue.printStackTrace(); 
		}
		catch(IOException ioe){ ioe.printStackTrace(); }
		return connection;
	}
	public static String readBuildRequest(HttpsURLConnection connection)
	{
 
		String line;
		String fileRequest=null;
		try
		{
		BufferedReader reader = null;
		//lecture de la réponse
		reader =  new BufferedReader(new InputStreamReader(connection.getInputStream()));
 
		//FileHelper fileHelper = new FileHelper();
			while ((line = reader.readLine()) != null) 
			{
				System.out.println("reader " + line);
				fileRequest =""+ line;
				System.out.println("filerequest"+ fileRequest);
			}	
 
		}
		catch(MalformedURLException mue) { mue.printStackTrace(); }
		catch(IOException ioe) { ioe.printStackTrace(); }
		
		System.out.println("filerequest"+ fileRequest);
		return fileRequest;
	}
	public static void main(String args[]){
		GetData ut = new GetData();
		final	String currRep = "/"+"src.rar"; 
		System.out.println(ut.sendRequestString(ut.setEncodedCSVString(ut.setCSVString("LOGIN","PASSWORD"))));
		//System.out.println(System.getProperties().getProperty("java.home"));
	}
}

Open in new window

0
Comment
Question by:Sreejith22
  • 3
  • 2
6 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 300 total points
ID: 22866389
Try doing the authentication like this:

http://forums.sun.com/thread.jspa?threadID=5094366
0
 
LVL 59

Assisted Solution

by:Kevin Cross
Kevin Cross earned 200 total points
ID: 22866452
You are correct it is authentication related as the 401 status code is the UNATHORIZED status for http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

What you may need to do is pass these values in header versus in URL.  Let me see if I can find an example.
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22866458
Actually that is a good one from CEHJ, I just didn't have my browser refreshed yet.  
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 

Author Comment

by:Sreejith22
ID: 22869713
Thanks CEHJ and mwvisa1,
I got the output with http://www.exampledepot.com/egs/java.net/Auth.html

Still, thanks a lot for your valuable help.

Regards,
Sreejith
0
 
LVL 59

Expert Comment

by:Kevin Cross
ID: 22870298
Glad you found that.  CEHJ posted that link to answer another question along this lines...  Just glad to share in his genius on this occassion. :)
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 22871136
:-)
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
groupNoAdj 7 97
allswap challenge 6 99
egit plugin on eclipse 8 64
How do I search an FTP site for a specific file name/pattern? 3 34
Cloud file services can fill many different roles for your business. Often, the use of cloud file services begins with employees using consumer products, like Dropbox, to share files with customers and each other. While sync-and-share can be an effe…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question