I have a function I am using to upload files. How can I get the
number of bytes of the file that have been uploaded (transferred)?
Can I setup a timer that does this? If so, what variable to I read to
get the number of bytes uploaded? Here is my code:
========================================================================
String existingFileName = fileToUpload;
File uploadFile = new File(existingFileName);
FileInputStream fileInputStream = new FileInputStream(uploadFile);
// Set some special vars
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
// URL to upload to
URL connectURL = new URL("http://url/to/upload/script.php?
filename="+fileToUpload);
// connectURL is a URL object
conn = (HttpURLConnection)connectURL.openConnection();
// allow inputs
conn.setDoInput(true);
// allow outputs
conn.setDoOutput(true);
// don't use a cached copy
conn.setUseCaches(false);
// use a post method
conn.setRequestMethod("POST");
// set post headers
conn.setRequestProperty("Connection","Keep-Alive");
conn.setRequestProperty("Content-Type","multipart/form-
data;boundary="+boundary);
// open data output stream
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile
\";filename=\""+existingFileName +"\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
int bytesAvailable = fileInputStream.available();
int maxBufferSize = 1024;
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
byte[] buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0)
{
// Upload file part(s)
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// Send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Close streams
fileInputStream.close();
dos.flush();
InputStream is = conn.getInputStream();
int ch;
StringBuffer b =new StringBuffer();
while( ( ch = is.read() ) != -1 ) {
b.append( (char)ch );
}
String s=b.toString();
dos.close();
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