Java & php $_Get

[Blacknight]

I've tried searching around on google about this, but nothing seemed to work.

Here is what I have so far:

import java.net.*;
import java.io.*;

public class submit {
    public static void main(String[] args) throws Exception {
		String username = "test";

		URL u = new URL("hxxp://127.0.0.1/test.php?var1=username");
		URLConnection a = u.openConnection();
		HttpURLConnection connection = (HttpURLConnection) uc;

		connection.disconnect();
    } 
}

All I want to do is submit 1 variable to a php file, then disconnect.

Edit: hxxp is suppose to be http, but It won't let me post "links".

[Eranga]

Can you explain bit more what exactly you want to do with pHp and Java, I'm not clear?

[r035198x]

What happened when you compiled/ran the code?
What results did you get and what results did you expect to get?

[Blacknight]

Can you explain bit more what exactly you want to do with pHp and Java, I'm not clear?

I wanted to submit the data using .php?var1=WhateverHere. Then the php file handles it from there.


Example:

Every time i visit hxxp://127.0.0.1/test.php?var1=Blah in browser(this is what I want to do, but without the browser), the php file gets "Blah" and then writes it to a file.

I could use the users browser to simply visit the page and close it(in java), but that doesn't really seem like a great way of doing things.


This is what test.php looks like:

<?php
if (isset($_GET['var1'])) {
	$file = fopen("test.txt", 'w') or die("error.");
if($existingContents == "")
	fwrite($file, $_GET['var1']);	
fclose($file);
?>

[r035198x]

I understand perfectly what you are trying to do. The problem is that you haven't answered any of my questions.

[Blacknight]

I understand perfectly what you are trying to do. The problem is that you haven't answered any of my questions.

Sorry, looks like I quoted the wrong person.

Anyways, If i were to run it I would get an error(which I can't post) at run-time. But even if I set setDoOutput() to true, the php file does not get anything.

If anyone could point out what's wrong, or tell me which methods I should look up to get this working, I would appreciate it.

[r035198x]

Here is a tutorial that should help.

[Blacknight]

is a tutorial that should help.

Thanks, everything is working now.

import java.io.*;
import java.net.*;

public class Reverse {
    public static void main(String[] args) throws Exception {

	URL url = new URL("hxxp://127.0.0.1/Test.php?var1=blah&var2=blah2");
	URLConnection connection = url.openConnection();

	BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
	in.close();
    }
}

One more question, the only line I don't really understand is #10.

BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));

Why does this object have to be created(I'm not trying to get any data, or even use it?), however without it, it will not work.

[r035198x]

If you only want to write to it then perhaps you should have used

URL url = new URL("http://127.0.0.1/Test.php");
URLConnection connection = url.openConnection();
//connection.setDoOutput(true); only if you need to read the output
OutputStreamWriter out = new OutputStreamWriter(                         connection.getOutputStream());
out.write("var1=blah");
out.close();

P.S The above code has not been tested anywhere.