Hi,
I'm trying to upload a file from Android to Tomcat server using
HttpClient and HttpPost. The android-side code is:
HttpClient client = new DefaultHttpClient();
client.getParams().setParameter("http.socket.timeout",
new Integer
(90000)); // 90 second
HttpPost httpPost = new
HttpPost("http://192.168.1.100:8080/
mediator/upload");
FileEntity entity = new FileEntity(new File(filePath),
"binary/
octet-stream");
httpPost.setEntity(entity);
HttpResponse response = client.execute(httpPost);
Log.i(TAG, "Upload finished. Status: " +
response.getStatusLine());
client.getConnectionManager().shutdown();
The result always is "HTTP/1.1 400 Bad Request".
I captured the data sent over the network and it looks like:
> POST /mediator/upload HTTP/1.1
> Content-Length: 8287
> Content-Type: binary/octet-stream
> Host: 192.168.1.100:8080
> Connection: Keep-Alive
> User-Agent: Apache-HttpClient/UNAVAILABLE (java 1.4)
> Expect: 100-Continue
< HTTP/1.1 100 Continue
< HTTP/1.1 400 Bad Request
< Server: Apache-Coyote/1.1
< Content-Type: text/html;charset=UTF-8
< Content-Length: 971
< Date: Tue, 22 Dec 2009 12:14:47 GMT
< Connection: close
I created a simple HTML form for POSTing a file. This works fine from
browser and the data is different:
1) it doesn't use HTTP 100 continue
2) Content-Type: multipart/form-data; boundary=----
WebKitFormBoundaryDlIVGYpQG46Q46So
In my client I tried to change the content type to other values than
"binary/octet-stream", but when I sniff the traffic, the binary/octet-
stream is still there.
I do this on HTC Here/SDK 1.5.
Thanks,
Radek
On Nov 15, 11:46 am, rezar <[email protected]> wrote:
> I solved the problem. I post my code here for others to have a working
> sample:
> on the server side I made a simple servlet:
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------
> private void receiveFile(HttpServletRequest req, HttpServletResponse
> resp) throws Exception {
> Enumeration emns = req.getHeaderNames();
> InputStream is = req.getInputStream();
> OutputStream os = new
> FileOutputStream(req.getHeader(FILENAME_STR));
> byte[] buffer = new byte[4096];
> int bytesRead;
> while ((bytesRead = is.read(buffer)) != -1) {
> os.write(buffer, 0, bytesRead);
> }
> is.close();
> os.close();
> }
> protected void doPost(HttpServletRequest request,HttpServletResponse
> response) throws ServletException, IOException {
> try {
> receiveFile(request,response);
> } catch (Exception e) {
>
> System.err.println("------------ERROR---------"+e.getMessage());
> e.printStackTrace();
> }
> }
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> At the android side (SDK v.2.0 ):
> private HttpPost post;
> public void doUpload(String filepath,String filename) {
> HttpClient httpClient = new DefaultHttpClient();
> try {
>
> httpClient.getParams().setParameter("http.socket.timeout", new
> Integer(90000)); // 90 second
> post = new HttpPost(new URI(YOUR_SERVER_ADDRESS));
> File file = new File(filepath);
> FileEntity entity;
> if (filepath.substring(filepath.length()-3,
> filepath.length
> ()).equalsIgnoreCase("txt") ||
> filepath.substring(filepath.length()-3,
> filepath.length
> ()).equalsIgnoreCase("log")) {
> entity = new FileEntity(file,"text/plain;
> charset=\"UTF-8\"");
> entity.setChunked(true);
> }else {
> entity = new
> FileEntity(file,"binary/octet-stream");
> entity.setChunked(true);
> }
> post.setEntity(entity);
> post.addHeader(FILENAME_STR, filename);
>
> HttpResponse response = httpClient.execute(post);
> if (response.getStatusLine().getStatusCode() !=
> HttpStatus.SC_OK) {
> Log.e(TAG,"--------Error--------Response
> Status line
> code:"+response.getStatusLine());
> }else {
> // Here every thing is fine.
> }
> HttpEntity resEntity = response.getEntity();
> if (resEntity == null) {
> Log.e(TAG,"---------Error No Response
> !!!-----");
> }
> } catch (Exception ex) {
> Log.e(TAG,"---------Error-----"+ex.getMessage());
> ex.printStackTrace();
> } finally {
> httpClient.getConnectionManager().shutdown();
> }
> }
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