java – Android文件上传器与服务器端php

public class Uploader extends Activity {

    private String Tag = "UPLOADER";
    private String urlString = "YOUR_ONLINE_PHP";
    HttpURLConnection conn;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        String exsistingFileName = "/sdcard/uploader/data/testfile";

        String lineEnd = "rn";
        String twoHyphens = "--";
        String boundary = "*****";
        try {
            // ------------------ CLIENT REQUEST

            Log.e(Tag,"Inside second Method");

            FileInputStream fileInputStream = new FileInputStream(new File(
                    exsistingFileName));

            // open a URL connection to the Servlet

            URL url = new URL(urlString);

            // Open a HTTP connection to the URL

            conn = (HttpURLConnection) url.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");

            conn.setRequestProperty("Connection","Keep-Alive");

            conn.setRequestProperty("Content-Type","multipart/form-data;boundary=" + boundary);

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

            dos.writeBytes(twoHyphens + boundary + lineEnd);
            dos
                    .writeBytes("Content-Disposition: post-data; name=uploadedfile;filename="
                            + exsistingFileName + "" + lineEnd);
            dos.writeBytes(lineEnd);

            Log.e(Tag,"Headers are written");

            // create a buffer of maximum size

            int bytesAvailable = fileInputStream.available();
            int maxBufferSize = 1000;
            // int bufferSize = Math.min(bytesAvailable,maxBufferSize);
            byte[] buffer = new byte[bytesAvailable];

            // read file and write it into form...

            int bytesRead = fileInputStream.read(buffer,bytesAvailable);

            while (bytesRead > 0) {
                dos.write(buffer,bytesAvailable);
                bytesAvailable = fileInputStream.available();
                bytesAvailable = Math.min(bytesAvailable,maxBufferSize);
                bytesRead = fileInputStream.read(buffer,bytesAvailable);
            }

            // send multipart form data necesssary after file data...

            dos.writeBytes(lineEnd);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

            // close streams
            Log.e(Tag,"File is written");
            fileInputStream.close();
            dos.flush();
            dos.close();

        } catch (MalformedURLException ex) {
            Log.e(Tag,"error: " + ex.getMessage(),ex);
        }

        catch (IOException ioe) {
            Log.e(Tag,"error: " + ioe.getMessage(),ioe);
        }

        try {
            BufferedReader rd = new BufferedReader(new InputStreamReader(conn
                    .getInputStream()));
            String line;
            while ((line = rd.readLine()) != null) {
                Log.e("Dialoge Box","Message: " + line);
            }
            rd.close();

        } catch (IOException ioex) {
            Log.e("MediaPlayer","error: " + ioex.getMessage(),ioex);
        }
    }
}