I found this bit of code. Not put it to use yet, but looks good to
go. The "data" object is the byte[] representing the image.
PostMethod method;
try {
HttpClient client = new HttpClient();
client.getHttpConnectionManager().getParams().setConnectionTimeout(
5000);
method = new PostMethod(urlString);
Part[] parts = {
new FilePart("videoFile", new
ByteArrayPartSource(
"videoFile",
data)),
new StringPart("videoName",
filename) };
method.setRequestEntity(new
MultipartRequestEntity(parts, method
.getParams()));
client.executeMethod(method);
response = method.getResponseBodyAsString();
method.releaseConnection();
} catch (Exception ex) {
Log.v(TAG, "Exception", ex);
} finally {
method.releaseConnection();
}
On Apr 29, 3:25 am, Amit <[email protected]> wrote:
> Hi,
>
> I am a newbie to Android development; and I want to upload an image
> (NOT an image file on the device, but a frame from a camera preview)
> to a web-server. I searched around and got a snippet of code that can
> be used to upload a byte array. This is the code:
>
> public void uploadImage(final byte[] data) {
> // spawn off a new thread to do the image uploading
> new Thread(new Runnable() {
>
> @Override
> public void run() {
> // TODO Auto-generated method stub
> Log.d(TAG, "onRun:");
> HttpURLConnection conn = null;
> try {
> serverURL = new URL(URL);
> } catch (MalformedURLException e) {
> // TODO Auto-generated catch block
> Log.e(TAG, "Malformed URL!");
> e.printStackTrace();
> }
> try {
> // open up a connection with the
> server
> conn = (HttpURLConnection)
> serverURL.openConnection();
>
> // set up the conection
> conn.setDoInput(true);
> conn.setDoOutput(true);
> conn.setUseCaches(true);
> conn.setRequestMethod("POST");
> conn.setRequestProperty("Connection",
> "Keep-Alive");
>
> // now transfer the byte-stream
> DataOutputStream ostream = new
> DataOutputStream(conn.getOutputStream());
> ostream.write(data);
> ostream.flush();
> ostream.close();
>
> } catch (IOException e) {
> // TODO Auto-generated catch block
> Log.e(TAG, "No response from
> server!");
> e.printStackTrace();
> } finally {
> conn.disconnect();
> }
>
> // wait for server response
> try {
> BufferedReader reader = new
> BufferedReader(
> new
> InputStreamReader(conn.getInputStream())
> );
> String response;
> while ((response = reader.readLine())
> != null ) {
> Log.d("server response: ",
> response);
> }
> reader.close();
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
>
> }
>
> }).start();
> }
>
> First, is this code right, or am I missing something here?
>
> Next, I want to know how can I simultaneously upload image AND
> optional image tags to the server?
> I got to the level that I need to send a multi-part request, but can't
> seem to figure out the specifics. Can someone help me?
>
> Also are there some 'best practices' to follow while doing this (like
> for responsiveness, etc)?
>
> Any help is much appreciated!
>
> Thanks,
> Amit
>
> PS: Although this may be a little out-of-bounds for this forum, but
> I'm also writing the server -- any help/ pointers on how to write it
> to handle this POST request that the client sends? Got to write the
> server in ASP.NET
> Thanks again,
> amit
>
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