This example shows how to build up a string to post to a web form, and return the results generated.
Element1 is the first variable the the post accepts – “Value 1” is the literal string bieng passed to it.
Element2 is the second variable that the post accepts – “Value 2” is the literal string bieng passed to it.
Element3 is the third variable that the post accepts – “Value 2” is the literal string bieng passed to it.
http://www.examplewebsite.asp is the web page that the data is bieng posted to.
//Create Post String
String data = URLEncoder.encode(“Element1”, “UTF-8”) + “=” + URLEncoder.encode(“Value 1”, “UTF-8”);
data += “&” + URLEncoder.encode(“Element2”, “UTF-8”) + “=” + URLEncoder.encode(“Value 2”, “UTF-8”);
data += “&” + URLEncoder.encode(“Element3”, “UTF-8”) + “=” + URLEncoder.encode(“Value 3”, “UTF-8”);
// Send Data To Page
URL url = new URL(“http://www.examplewebsite.asp”);
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) {
System.out.println(line);
//you Can Break The String Down Here
}
You can manipulate the line variable to read in the information returned from the post.
This looks excellent, exactly what I’m looking for. But unfortunately it doesn’t work..
I send it to my webpage and it doesn’t post the message. I included this piece of code in my php website: “print_r($_POST);”, which shows all the post-variables send but its empty…
If you have any ideas about what it could be, I would appreciate it much…
Got it! You need to add the “index.php” at the end of your url.
Thank you for this wonderfull piece of code!
Thank you very much for this code. It’s exactly what I was looking for.
Thanks for the code, it worked perfectly! 🙂
Thank you!
Very usefull post.