Restful URL custom authentication failing in java - rest

Question

This code is for getting the text from some URL which is having custom authentication as specified below.Tried with even ajax and Jquery as dataType:"jsonp" but it is also showing 401 error.
URL u;
HttpURLConnection con;
InputStream is = null;
DataInputStream dis;
String s;
try {
// u = new URL("http://q.addthis.com/feeds/1.0/trending.json?pubid=atblog");
u = new URL("http://m2mportal.connectm.com/EMS/rest/device");
is = u.openStream();
con=(HttpURLConnection) u.openConnection();
con.connect();
con.setDoOutput(true);
con.setRequestMethod("GET");
con.setRequestProperty("Accept","application/json");
con.setRequestProperty("Authorization","authenticate\":{\"userName\":\"admin01\",\"password\":\"admin01$\",\"appId\":\"123\"}");
con.setRequestProperty("userName","admin01");
con.setRequestProperty("password","admin01$");
con.setRequestProperty("appId","123");
dis = new DataInputStream(new BufferedInputStream(is));
while ((s = dis.readLine()) != null)
{
System.out.println(s);
}
}
catch (MalformedURLException mue)
{
System.out.println("Ouch - a MalformedURLException happened.");
mue.printStackTrace();
System.exit(1);
}
catch (IOException ioe)
{
System.out.println("Oops- an IOException happened.");
ioe.printStackTrace();
System.exit(1);
}
catch(IllegalStateException ise)
{
System.out.println("In IllegalState Exception........");
ise.printStackTrace();
}
When tried to authenticate against a url which is having some custom authentication as shown in the code it is returning 401 error
Oops- an IOException happened.
java.io.IOException: Server returned HTTP response code: 401 for URL: some url
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1625)
at java.net.URL.openStream(URL.java:1037)
at com.techm.JavaGetUrl.main(JavaGetUrl.java:16)
Java Result: 1

Answer 1

Actually problem here is Authorization property that you passed is not encoded.
You need to pass it to Base64 encoder so that http Authorization mechanism will use it.
Base64 encoding is commonly used when there is a need to encode / decode binary data stored and transferred over network.
Add encoding to your code . change your code to :
you need to use
Base64.encodeToString()
to perform encoding.
Following link will help you more:
http://www.javatips.net/blog/2011/08/how-to-encode-and-decode-in-base64-using-java