upload File via Http - Android Network

Android examples for Network:HTTP

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Description

upload File via Http

Demo Code


import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.util.Log;

public class Main{
    private static final String TAG = "HttpUtils";
    /**/*from   w w w.j  a v a2  s.  c  om*/
     * 
     * @param upLoadServerUri    server url to upload file
     * @param filePath           absolute path of file on device
     * @param fileId             id/name to be sent to server as server uses this
     *                           as a filename or identity
     * @return                   response code from server, 200 for HTTP OK
     */
    public static int uploadFile(String upLoadServerUri, String filePath,
            String fileId, FileUploadObserver uploadObserver) {

        HttpURLConnection conn = null;
        DataOutputStream dos = null;
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024;
        File sourceFile = new File(filePath);
        int serverResponseCode = 0;
        long totalBytesRead = 0;

        try {
            // open a URL connection to the server
            FileInputStream fileInputStream = new FileInputStream(
                    sourceFile);
            URL url = new URL(upLoadServerUri);

            //
            // 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
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("ENCTYPE", "multipart/form-data");
            conn.setRequestProperty("Content-Type",
                    "multipart/form-data;boundary=" + boundary);

            dos = new DataOutputStream(conn.getOutputStream());

            dos.writeBytes(twoHyphens + boundary + lineEnd);
            dos.writeBytes("Content-Disposition: form-data; name=\""
                    + fileId + "\";" + " filename=\"" + filePath + "\""
                    + 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);
            totalBytesRead += bytesRead;

            while (bytesRead > 0) {

                sendFileUploadProgress(uploadObserver, totalBytesRead,
                        sourceFile.length());

                dos.write(buffer, 0, bufferSize);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
                totalBytesRead += bytesRead;

            }

            // 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();
            final String serverResponseMessage = conn.getResponseMessage();

            Log.i("uploadFile", "HTTP Response is : "
                    + serverResponseMessage + ": " + serverResponseCode);

            Log.d(TAG,
                    "=====================================================================");
            Log.d(TAG, "====> file upload: server response code: "
                    + serverResponseCode);
            Log.d(TAG, "====> file upload: server message:-\n"
                    + serverResponseMessage);
            Log.d(TAG,
                    "=====================================================================");

            // close the streams //
            fileInputStream.close();
            dos.flush();
            dos.close();

        } catch (MalformedURLException ex) {

            Log.d(TAG,
                    "------------ MalformedURLException EXCEPTION -----------------------");
            ex.printStackTrace();

        } catch (Exception e) {

            Log.d(TAG,
                    "------------ File UPLOAD EXCEPTION -----------------------");
            e.printStackTrace();
        }

        return serverResponseCode;

    }
    private static void sendFileUploadProgress(
            FileUploadObserver uploadObserver, long totalBytesRead,
            long totalBytes) {
        if (uploadObserver != null) {
            uploadObserver
                    .uploadStatusUpdate(0, totalBytesRead, totalBytes);
        }
    }
}

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