Question

I am trying to write a servlet that will send a XML file (xml formatted string) to another servlet via a POST. (Non essential xml generating code replaced with ‘Hello there’)

   StringBuilder sb=  new StringBuilder();     sb.append('Hello there');      URL url = new URL('theservlet's URL');     HttpURLConnection connection = (HttpURLConnection)url.openConnection();                     connection.setRequestMethod('POST');     connection.setRequestProperty('Content-Length', '' + sb.length());      OutputStreamWriter outputWriter = new OutputStreamWriter(connection.getOutputStream());     outputWriter.write(sb.toString());     outputWriter.flush();     outputWriter.close(); 

This is causing a server error, and the second servlet is never invoked.

Answer 1

This kind of thing is much easier using a library like HttpClient. There’s even a post XML code example:

PostMethod post = new PostMethod(url); RequestEntity entity = new FileRequestEntity(inputFile, 'text/xml; charset=ISO-8859-1'); post.setRequestEntity(entity); HttpClient httpclient = new HttpClient(); int result = httpclient.executeMethod(post);