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

Posted on 2008-11-03
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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"));

	}

}

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Question by:Sreejith22
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6 Comments
 
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Accepted Solution

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

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

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