Question

How do I call a url in order to process the results?

I have a stand-alone reporting servlet which I link to for reports. I want to email these reports now, if I were doing this in the browser, I could just use an xhttprequest, and process the results – I basically want to do the same thing in Java, but I’m not sure how to go about it.

UPDATE: I’m looking to get a file back from the url (whether that be a pdf or html etc).

UPDATE: This will be running purely on the server – there is no request that triggers the emailing, rather it is a scheduled email.

Answer 1

public byte[] download(URL url) throws IOException {     URLConnection uc = url.openConnection();     int len = uc.getContentLength();     InputStream is = new BufferedInputStream(uc.getInputStream());     try {         byte[] data = new byte[len];         int offset = 0;         while (offset < len) {             int read = is.read(data, offset, data.length - offset);             if (read < 0) {                 break;             }           offset += read;         }         if (offset < len) {             throw new IOException(                 String.format('Read %d bytes; expected %d', offset, len));         }         return data;     } finally {         is.close();     } } 

Edit: Cleaned up the code.