This works like charm for me:
public int uploadFile(String sourceFileUri) {
String fileName=sourceFileUri;
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "------hellojosh";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(fileName);
Log.e("joshtag", "Uploading: sourcefileURI, "+fileName);
if (!sourceFile.isFile()) {
Log.e("uploadFile", "Source File not exist :"+appSingleton.getInstance().photouri);//FullPath);
runOnUiThread(new Runnable() {
public void run() {
//messageText.setText("Source File not exist :"
}
});
return 0; //RETURN #1
}
else{
try{
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
Log.v("joshtag",url.toString());
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy s
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("file", fileName);
conn.setRequestProperty("user", user_id));
dos = new DataOutputStream(conn.getOutputStream());
//ADD Some -F Form parameters, helping method
//... is declared down below
addFormField(dos, "someParameter", "someValue");
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"file\";filename=\"" + fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
Log.i("joshtag","->");
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage().toString();
Log.i("joshtag", "HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode);
// ------------------ read the SERVER RESPONSE
DataInputStream inStream;
try {
inStream = new DataInputStream(conn.getInputStream());
String str;
while ((str = inStream.readLine()) != null) {
Log.e("joshtag", "SOF Server Response" + str);
}
inStream.close();
}
catch (IOException ioex) {
Log.e("joshtag", "SOF error: " + ioex.getMessage(), ioex);
}
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
if(serverResponseCode == 200){
//Do something
}//END IF Response code 200
dialog.dismiss();
}//END TRY - FILE READ
catch (MalformedURLException ex) {
ex.printStackTrace();
Log.e("joshtag", "UL error: " + ex.getMessage(), ex);
} //CATCH - URL Exception
catch (Exception e) {
e.printStackTrace();
Log.e("Upload file to server Exception", "Exception : "+ e.getMessage(), e);
} //
return serverResponseCode; //after try
}//END ELSE, if file exists.
}
public static String lineEnd = "\r\n";
public static String twoHyphens = "--";
public static String boundary = "------------------------afb19f4aeefb356c";
public static void addFormField(DataOutputStream dos, String parameter, String value){
try {
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\""+parameter+"\"" + lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(value);
dos.writeBytes(lineEnd);
}
catch(Exception e){
}
}
UPDATE: If you need to send parameters along with the file,
use:
conn.setRequestProperty("someParameter","someValue")
//or
addFormField(DataOutputStream dos, String parameter, String value)
...as shown in the code above. One or the other should work, if the server you are trying to connect to is not completely known to you.
