Unable to access URL using HttpURLConnection

Question

Hi,
I am using HttpURLCOnnection class to post a data to a url(which is a web service). The webservice accepts data as text/xml.
Following is the code snippet i used:
URL url = new URL("http://xxx.xxx.xx.xx:8080/SampleWebService.svc");
HttpURLConnection conn =(HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type","text/xml");
String urlStr="param1="+URLEncoder.encode(value1)+"&param2="+URLEncoder.encode(value2)
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(urlStr);
wr.flush();
InputStream in2 = conn.getInputStream();
in2.close();
wr.close();
But when i execute the code, I am getting following error at the line(InputStream in2 = conn.getInputStream();)
java.io.IOException: Server returned HTTP response code: 400 for URL
Can someone please suggest a solution. Am i missing something here?
Thanks in advance

Answer 1

This may not be the cause of the problem, however I will point out that the Content-Type you are setting (text/xml) is not the content type you are sending (key=value&key=value...).
If the webservice only accepts text/xml, then this is probably the cause of your problem.
Another thing you could try is removing the line that sets the content type.
Here are the request properties in some (hacky) code that I have used for sending POST requests:
               conn.setDoOutput(true);
               conn.setRequestProperty("Host", url.getHost());
               conn.setRequestProperty("Referer", referer);
               conn.setRequestProperty("Cache-Control", "max-age=0");
               conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)");
               conn.setRequestProperty("Cookie", cookies);Edited by: 842408 on Mar 7, 2011 10:14 AM
Edited by: 842408 on Mar 7, 2011 10:14 AM