Writing an URL Connection

[dummyagain]

I would like to send form data from java to a php page. I have referred to the page http://www.devx.com/Java/Article/17679/1954?pf=true and use its class file provided (http://www.devx.com/assets/sourcecode/7315.zip).

I have written something like this

    private void upload(){
        try{
            
        InputStream serverInput = ClientHttpRequest.post(
                              new java.net.URL("http://domain.com/processFile.php"), 
                              new Object[] {"test.txt", new File("C:\\home\\vp\\tmp\\test.txt") });
        ClientHttpRequest cr = new ClientHttpRequest(new URL("http://domain.com/processFile.php"));
        cr.setParameter("abc", "aaa");    
        }catch (Exception e){
            
        }
        
    }

However, i dont know if it has sentd the form data to the php page as it seems not opened after the method is triggered.

I would like to know how to make something like, when i triggered the "upload" method, the java program will open the processFile.php and send form data to it.

Thank you.

[petes1234]

I am quite ignorant about URL and using Java to interact w/ the web, so this may be a red herring, but when you use path strings, I think that you need to double up on your backslashes. Thus this:
"http://domain.com/processFile.php"
becomes this:
"http:////domain.com//processFile.php"
etc.

Would making this change help any?

[dlorde]

Originally Posted by petes1234

... when you use path strings, I think that you need to double up on your backslashes. Thus this:
"http://domain.com/processFile.php"
becomes this:
http:////domain.com//processFile.php

You're right about doubling backslashes, but those are forwardslashes...

Opposites are not contradictory but complementary...
N. Bohr

[dummyagain]

i tried, but still cannot open the processFile.php page.

Thx

[petes1234]

Originally Posted by dlorde

You're right about doubling backslashes, but those are forwardslashes...

Opposites are not contradictory but complementary...
N. Bohr

Thanks for the correction. I kind of, sort of, know but only iffily that windows tends to use the ?back slash "\" that unix uses the other and that java can use both but prefers??? the forward slash "/"??????

I'm really going out on a mental limb here. somebody bring a net and ladder!!!

[dummyagain]

i have written something like

private void upload(){
                DataOutputStream dataOut;
	
		URLConnection urlConn;
		URL url;
                String urlString = "http://domain.com/processFile.php";
                String filename = "C:/us.jpg";
                String localFilename = filename;
		try {
			url = new URL(urlString);
			urlConn = url.openConnection();
			urlConn.setDoInput(true);
			urlConn.setDoOutput(true);
			urlConn.setUseCaches(false);
			urlConn.setRequestProperty("Content-Type", "multipart/form-data, boundary=AaB03x");
			dataOut = new DataOutputStream(urlConn.getOutputStream());

			dataOut.writeBytes("--AaB03x\r\n");
			dataOut.writeBytes("Content-Disposition: form-data; name=\"data_file\"; filename=\"" + URLEncoder.encode( filename) + "\"\r\n");
			dataOut.writeBytes("Content-Type: image/jpeg\r\n");
			dataOut.writeBytes("\r\n");
			FileInputStream fis = new FileInputStream(localFilename);
			System.out.println("output from " + localFilename + " to " + filename);

			byte buffer[] = new byte[1000000];
			int len;
			while ((len = fis.read(buffer)) != -1) {
				dataOut.write(buffer, 0, len);
			}
			fis.close();
			dataOut.close();

			dataOut.writeBytes("\r\n--AaB03x--\r\n");
			dataOut.flush();

			dataOut.close();
			status.setText("waiting for server");
			InputStream in = urlConn.getInputStream();
			int input = 0;
			String inputSt = "";
	
			while (input != -1) {
				input = in.read();
				inputSt = inputSt + ((char) input);
			}
			status.setText("from Server" + inputSt);

		} catch (MalformedURLException me) {
			System.err.println("MalformedURLException: " + me);
		} catch (IOException ioe) {
			System.err.println("IOException: " + ioe.getMessage());
		}
    }

but i dont know what to do next in order to show the processFile.php and show the file info.

Thank you.

[dlorde]

Originally Posted by petes1234

Thanks for the correction. I kind of, sort of, know but only iffily that windows tends to use the ?back slash "\" that unix uses the other and that java can use both but prefers??? the forward slash "/"??????

As I understand it, Java has no preference, but it uses backslashes '\' as escape characters in strings, so if you use them you have to escape them (double them up). Windows defaults to using backslashes, but will accept forwardslashes. Unix uses forwardslashes.

Computer Science is no more about computers than astronomy is about telescopes...
E. Dijkstra

[11mict16@nirmauni.ac.in]

Here is The PHP code That Required For file upload response.

<?php
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < 20000))
{
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
echo "Type: " . $_FILES["file"]["type"] . "<br />";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";

if (file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"upload/" . $_FILES["file"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
}
}
}
else
{
echo "Invalid file";
}
?>

[keang]

Please don't resurrect old threads and especially as a PHP solution is off topic for this forum.