Sending a POST Request Using a URL

Very useful source code to make any http post call. Some of you will find it trivial..
See also Sending a POST Request Using a Socket.

try {
// Construct data
String data = URLEncoder.encode("key1", "UTF-8") + "=" + URLEncoder.encode("value1", "UTF-8");
data += "&" + URLEncoder.encode("key2", "UTF-8") + "=" + URLEncoder.encode("value2", "UTF-8");

// Send data
URL url = new URL("http://hostname:80/cgi");
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(data);
wr.flush();

// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = rd.readLine()) != null)
{
// Process line...
}
wr.close();
rd.close();
} catch (Exception e) { }

Source: http://www.exampledepot.com/egs/java.net/Post.html