Wow – it initially seemed much harder to do REST web services in Java than it should have been – it took a while for me to find this web site. Everyone wanted me to download a jar or something – I knew this had to work in a few lines of Java with no jars…
Thanks to: http://xml.nig.ac.jp/tutorial/rest/index.html
My code below.
try { // Thanks: http://xml.nig.ac.jp/tutorial/rest/index.html URL url = new URL(restEndPoint); //make connection, use post mode, and send query URLConnection urlc = url.openConnection(); urlc.setDoOutput(true); urlc.setAllowUserInteraction(false); String encodedPost = URLEncoder.encode(ret); PrintStream ps = new PrintStream(urlc.getOutputStream()); ps.print("launchData="+encodedPost); ps.close(); //retrieve result BufferedReader br = new BufferedReader(new InputStreamReader(urlc .getInputStream())); String str; StringBuffer sb = new StringBuffer(); while ((str = br.readLine()) != null) { sb.append(str); sb.append("\n"); } br.close(); response = sb.toString(); if ( response == null ) { setErrorMessage(request, "Launch REST Web Service returned nothing"); } } catch(Exception e) { e.printStackTrace(); setErrorMessage(request, "Failed REST service call. Exception="+e); response = null; }