Post multipart request with Android SDK

As MultiPartEntity is deprecated. So here is the new way to do it! And you only need httpcore.jar(latest) and httpmime.jar(latest) download them from Apache site.

try { HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(URL); MultipartEntityBuilder entityBuilder = MultipartEntityBuilder.create(); entityBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE); entityBuilder.addTextBody(USER_ID, userId); entityBuilder.addTextBody(NAME, name); entityBuilder.addTextBody(TYPE, type); entityBuilder.addTextBody(COMMENT, comment); entityBuilder.addTextBody(LATITUDE, String.valueOf(User.Latitude)); entityBuilder.addTextBody(LONGITUDE, String.valueOf(User.Longitude)); if(file != null) { entityBuilder.addBinaryBody(IMAGE, file); } HttpEntity entity = entityBuilder.build(); post.setEntity(entity); HttpResponse response = client.execute(post); HttpEntity httpEntity = response.getEntity(); result = EntityUtils.toString(httpEntity); Log.v("result", result); } catch(Exception e) { e.printStackTrace(); } 

Here is the LIGHT WEIGHTED solution which worked for me with no external HTTPCore and such libs. I was facing issue of 64K methods so have no option left to avoid HTTPCore libraries

import java.util.List; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLConnection; import java.util.ArrayList; import java.util.List; /** * This utility class provides an abstraction layer for sending multipart HTTP * POST requests to a web server. * * @author www.codejava.net */ public class MultipartUtility { private final String boundary; private static final String LINE_FEED = "\r\n"; private HttpURLConnection httpConn; private String charset; private OutputStream outputStream; private PrintWriter writer; /** * This constructor initializes a new HTTP POST request with content type * is set to multipart/form-data * * @param requestURL * @param charset * @throws IOException */ public MultipartUtility(String requestURL, String charset) throws IOException { this.charset = charset; // creates a unique boundary based on time stamp boundary = "===" + System.currentTimeMillis() + "==="; URL url = new URL(requestURL); httpConn = (HttpURLConnection) url.openConnection(); httpConn.setUseCaches(false); httpConn.setDoOutput(true); // indicates POST method httpConn.setDoInput(true); httpConn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary); httpConn.setRequestProperty("User-Agent", "CodeJava Agent"); httpConn.setRequestProperty("Test", "Bonjour"); outputStream = httpConn.getOutputStream(); writer = new PrintWriter(new OutputStreamWriter(outputStream, charset), true); } /** * Adds a form field to the request * * @param name field name * @param value field value */ public void addFormField(String name, String value) { writer.append("--" + boundary).append(LINE_FEED); writer.append("Content-Disposition: form-data; name=\"" + name + "\"") .append(LINE_FEED); writer.append("Content-Type: text/plain; charset=" + charset).append( LINE_FEED); writer.append(LINE_FEED); writer.append(value).append(LINE_FEED); writer.flush(); } /** * Adds a upload file section to the request * * @param fieldName name attribute in <input type="file" name="..." /> * @param uploadFile a File to be uploaded * @throws IOException */ public void addFilePart(String fieldName, File uploadFile) throws IOException { String fileName = uploadFile.getName(); writer.append("--" + boundary).append(LINE_FEED); writer.append( "Content-Disposition: form-data; name=\"" + fieldName + "\"; filename=\"" + fileName + "\"") .append(LINE_FEED); writer.append( "Content-Type: " + URLConnection.guessContentTypeFromName(fileName)) .append(LINE_FEED); writer.append("Content-Transfer-Encoding: binary").append(LINE_FEED); writer.append(LINE_FEED); writer.flush(); FileInputStream inputStream = new FileInputStream(uploadFile); byte[] buffer = new byte[4096]; int bytesRead = -1; while ((bytesRead = inputStream.read(buffer)) != -1) { outputStream.write(buffer, 0, bytesRead); } outputStream.flush(); inputStream.close(); writer.append(LINE_FEED); writer.flush(); } /** * Adds a header field to the request. * * @param name - name of the header field * @param value - value of the header field */ public void addHeaderField(String name, String value) { writer.append(name + ": " + value).append(LINE_FEED); writer.flush(); } /** * Completes the request and receives response from the server. * * @return a list of Strings as response in case the server returned * status OK, otherwise an exception is thrown. * @throws IOException */ public List<String> finish() throws IOException { List<String> response = new ArrayList<String>(); writer.append(LINE_FEED).flush(); writer.append("--" + boundary + "--").append(LINE_FEED); writer.close(); // checks server's status code first int status = httpConn.getResponseCode(); if (status == HttpURLConnection.HTTP_OK) { BufferedReader reader = new BufferedReader(new InputStreamReader( httpConn.getInputStream())); String line = null; while ((line = reader.readLine()) != null) { response.add(line); } reader.close(); httpConn.disconnect(); } else { throw new IOException("Server returned non-OK status: " + status); } return response; } } 

USAGE

private void uploadMedia() { try { String charset = "UTF-8"; File uploadFile1 = new File("/sdcard/myvideo.mp4"); String requestURL = Data.BASE_URL+Data.URL_UPLOAD_REACTION_TEST; MultipartUtility multipart = new MultipartUtility(requestURL, charset); // multipart.addHeaderField("User-Agent", "CodeJava"); // multipart.addHeaderField("Test-Header", "Header-Value"); multipart.addFormField("friend_id", "Cool Pictures"); multipart.addFormField("userid", "Java,upload,Spring"); multipart.addFilePart("uploadedfile", uploadFile1); List<String> response = multipart.finish(); Log.v("rht", "SERVER REPLIED:"); for (String line : response) { Log.v("rht", "Line : "+line); } } catch (Exception e) { e.printStackTrace(); } } 

PHP Code to accept upload

<?php $friend_id = $_REQUEST['friend_id']; $userid = $_REQUEST['userid']; echo 'friend_id : '.$friend_id. ' userid '.$userid; move_uploaded_file($_FILES['uploadedfile']['tmp_name'], "./uploads/".$_FILES["uploadedfile"]["name"]); ?> 

More easy, light (32k), and many more performance:

Android Asynchronous Http Client library: http://loopj.com/android-async-http/

Implementation:

How to send a “multipart/form-data” POST in Android with Volley

Try this:

 public void SendMultipartFile() { Log.d(TAG, "UPLOAD: SendMultipartFile"); DefaultHttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost( <url> ); File file = new File("/sdcard/spider.jpg"); Log.d(TAG, "UPLOAD: setting up multipart entity"); MultipartEntity mpEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); Log.d(TAG, "UPLOAD: file length = " + file.length()); Log.d(TAG, "UPLOAD: file exist = " + file.exists()); try { mpEntity.addPart("datafile", new FileBody(file, "application/octet")); mpEntity.addPart("id", new StringBody("1")); } catch (UnsupportedEncodingException e1) { Log.d(TAG, "UPLOAD: UnsupportedEncodingException"); e1.printStackTrace(); } httppost.setEntity(mpEntity); Log.d(TAG, "UPLOAD: executing request: " + httppost.getRequestLine()); Log.d(TAG, "UPLOAD: request: " + httppost.getEntity().getContentType().toString()); HttpResponse response; try { Log.d(TAG, "UPLOAD: about to execute"); response = httpclient.execute(httppost); Log.d(TAG, "UPLOAD: executed"); HttpEntity resEntity = response.getEntity(); Log.d(TAG, "UPLOAD: respose code: " + response.getStatusLine().toString()); if (resEntity != null) { Log.d(TAG, "UPLOAD: " + EntityUtils.toString(resEntity)); } if (resEntity != null) { resEntity.consumeContent(); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } 

I highly recommend Loopj.

I have successfully used it to upload multiple files at once, including different mime types. Simply do this:

File myVideo = new File("/path/to/myvideo.mp4"); File myPic = new File("/path/to/mypic.jpg"); RequestParams params = new RequestParams(); try { params.put("profile_picture", myPic); params.put("my_video", myVideo); } catch(FileNotFoundException e) {} 

For large or many files you might have to increase the timeout amount else the default timeout is used which might be too short:

client.setTimeout(500000) //make this the appropriate timeout in milliseconds 

Please see this links for a full description of loopj and how to use it, by far the easiest async http library I have come across:

http://loopj.com/android-async-http/ http://loopj.com/android-async-http/doc/com/loopj/android/http/AsyncHttpClient.html

public class Multipart{ private final Map<String, String> headrs; private String url; private HttpURLConnection con; private OutputStream os; private String delimiter = "--"; private String boundary = "TRR" + Long.toString(System.currentTimeMillis()) + "TRR"; public Multipart (String url, Map<String, String> headers) { this.url = url; this.headrs = headers; } public void connectForMultipart() throws Exception { con = (HttpURLConnection) (new URL(url)).openConnection(); con.setRequestMethod("POST"); con.setDoInput(true); con.setDoOutput(true); con.setRequestProperty("Connection", "Keep-Alive"); for (Map.Entry<String, String> entry : headrs.entrySet()) { con.setRequestProperty(entry.getKey(), entry.getValue()); } con.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary); con.connect(); os = con.getOutputStream(); } public void addFormPart(String paramName, String value) throws Exception { writeParamData(paramName, value); } public void addFilePart(String paramName, String fileName, byte[] data) throws Exception { os.write((delimiter + boundary + "\r\n").getBytes()); os.write(("Content-Disposition: form-data; name=\"" + paramName + "\"; filename=\"" + fileName + "\"\r\n").getBytes()); os.write(("Content-Type: application/octet-stream\r\n").getBytes()); os.write(("Content-Transfer-Encoding: binary\r\n").getBytes()); os.write("\r\n".getBytes()); os.write(data); os.write("\r\n".getBytes()); } public void finishMultipart() throws Exception { os.write((delimiter + boundary + delimiter + "\r\n").getBytes()); } public String getResponse() throws Exception { InputStream is = con.getInputStream(); byte[] b1 = new byte[1024]; StringBuffer buffer = new StringBuffer(); while (is.read(b1) != -1) buffer.append(new String(b1)); con.disconnect(); return buffer.toString(); } private void writeParamData(String paramName, String value) throws Exception { os.write((delimiter + boundary + "\r\n").getBytes()); os.write("Content-Type: text/plain\r\n".getBytes());//;charset=utf-8 os.write(("Content-Disposition: form-data; name=\"" + paramName + "\"\r\n").getBytes()); ; os.write(("\r\n" + value + "\r\n").getBytes()); } } 

Then call below

Multipart multipart = new Multipart(url__, map); multipart .connectForMultipart(); multipart .addFormPart(entry.getKey(), entry.getValue()); multipart .addFilePart(KeyName, "FileName", imagedata); multipart .finishMultipart(); 

You can you use GentleRequest, which is lightweight library for making http requests(DISCLAIMER: I am the author):

Connections connections = new HttpConnections(); Binary binary = new PacketsBinary(new BufferedInputStream(new FileInputStream(file)), file.length()); //Content-Type is set to multipart/form-data; boundary= //{generated by multipart object} MultipartForm multipart = new HttpMultipartForm( new HttpFormPart("user", "aplication/json", new JSONObject().toString().getBytes()), new HttpFormPart("java", "java.png", "image/png", binary.content())); Response response = connections.response(new PostRequest(url, multipart)); if (response.hasSuccessCode()) { byte[] raw = response.body().value(); String string = response.body().stringValue(); JSONOBject json = response.body().jsonValue(); } else { } 

Feel free to check it out: https://github.com/Iprogrammerr/Gentle-Request

Remove all your httpclient, httpmime dependency and add this dependency compile 'commons-httpclient:commons-httpclient:3.1'. This dependency has built in MultipartRequestEntity so that you can easily upload one or more files to the server

public class FileUploadUrlConnection extends AsyncTask<String, String, String> { private Context context; private String url; private List<File> files; public FileUploadUrlConnection(Context context, String url, List<File> files) { this.context = context; this.url = url; this.files = files; } @Override protected String doInBackground(String... params) { HttpClient client = new HttpClient(); PostMethod post = new PostMethod(url); HttpClientParams connectionParams = new HttpClientParams(); post.setRequestHeader(// Your header goes here ); try { Part[] parts = new Part[files.size()]; for (int i=0; i<files.size(); i++) { Part part = new FilePart(files.get(i).getName(), files.get(i)); parts[i] = part; } MultipartRequestEntity entity = new MultipartRequestEntity(parts, connectionParams); post.setRequestEntity(entity); int statusCode = client.executeMethod(post); String response = post.getResponseBodyAsString(); Log.v("Multipart "," "+response); if(statusCode == 200) { return response; } } catch (IOException e) { e.printStackTrace(); } return null; } 

You can also add the request and response timeout

client.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 10000); client.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 10000); 

I can recomend Ion library it use 3 dependences and you can find all three jar files at these two sites:
https://github.com/koush/ion#jars (ion and androidasync)

try { Ion.with(this, "http://www.urlthatyouwant.com/post/page") .setMultipartParameter("field1", "This is field number 1") .setMultipartParameter("field2", "Field 2 is shorter") .setMultipartFile("imagefile", new File(Environment.getExternalStorageDirectory()+"/testfile.jpg")) .asString() .setCallback(new FutureCallback<String>() { @Override public void onCompleted(Exception e, String result) { System.out.println(result); }}); } catch(Exception e) { // Do something about exceptions System.out.println("exception: " + e); } 

this will run async and the callback will be executed in the UI thread once a response is received I strongly recomned that you go to the https://github.com/koush/ion for futher information

Here is a Simple approach if you are using the AOSP library Volley.

Extend the class Request<T> as follows-

public class MultipartRequest extends Request<String> { private static final String FILE_PART_NAME = "file"; private final Response.Listener<String> mListener; private final Map<String, File> mFilePart; private final Map<String, String> mStringPart; MultipartEntityBuilder entity = MultipartEntityBuilder.create(); HttpEntity httpentity; public MultipartRequest(String url, Response.ErrorListener errorListener, Response.Listener<String> listener, Map<String, File> file, Map<String, String> mStringPart) { super(Method.POST, url, errorListener); mListener = listener; mFilePart = file; this.mStringPart = mStringPart; entity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE); buildMultipartEntity(); } public void addStringBody(String param, String value) { mStringPart.put(param, value); } private void buildMultipartEntity() { for (Map.Entry<String, File> entry : mFilePart.entrySet()) { // entity.addPart(entry.getKey(), new FileBody(entry.getValue(), ContentType.create("image/jpeg"), entry.getKey())); try { entity.addBinaryBody(entry.getKey(), Utils.toByteArray(new FileInputStream(entry.getValue())), ContentType.create("image/jpeg"), entry.getKey() + ".JPG"); } catch (FileNotFoundException e) { e.printStackTrace(); } } for (Map.Entry<String, String> entry : mStringPart.entrySet()) { if (entry.getKey() != null && entry.getValue() != null) { entity.addTextBody(entry.getKey(), entry.getValue()); } } } @Override public String getBodyContentType() { return httpentity.getContentType().getValue(); } @Override public byte[] getBody() throws AuthFailureError { ByteArrayOutputStream bos = new ByteArrayOutputStream(); try { httpentity = entity.build(); httpentity.writeTo(bos); } catch (IOException e) { VolleyLog.e("IOException writing to ByteArrayOutputStream"); } return bos.toByteArray(); } @Override protected Response<String> parseNetworkResponse(NetworkResponse response) { Log.d("Response", new String(response.data)); return Response.success(new String(response.data), getCacheEntry()); } @Override protected void deliverResponse(String response) { mListener.onResponse(response); } } 

You can create and add a request like-

Map<String, String> params = new HashMap<>(); params.put("name", name.getText().toString()); params.put("email", email.getText().toString()); params.put("user_id", appPreferences.getInt( Utils.PROPERTY_USER_ID, -1) + ""); params.put("password", password.getText().toString()); params.put("imageName", pictureName); Map<String, File> files = new HashMap<>(); files.put("photo", new File(Utils.LOCAL_RESOURCE_PATH + pictureName)); MultipartRequest multipartRequest = new MultipartRequest(Utils.BASE_URL + "editprofile/" + appPreferences.getInt(Utils.PROPERTY_USER_ID, -1), new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { // TODO Auto-generated method stub Log.d("Error: ", error.toString()); FugaDialog.showErrorDialog(ProfileActivity.this); } }, new Response.Listener<String>() { @Override public void onResponse(String jsonResponse) { JSONObject response = null; try { Log.d("jsonResponse: ", jsonResponse); response = new JSONObject(jsonResponse); } catch (JSONException e) { e.printStackTrace(); } try { if (response != null && response.has("statusmessage") && response.getBoolean("statusmessage")) { updateLocalRecord(); } } catch (JSONException e) { e.printStackTrace(); } FugaDialog.dismiss(); } }, files, params); RequestQueue queue = Volley.newRequestQueue(this); queue.add(multipartRequest); 

For posterity, I didn't see okhttp mentioned. Related post.

Basically you build up the body using a MultipartBody.Builder, and then post this in a request.

Example in kotlin:

 val body = MultipartBody.Builder() .setType(MultipartBody.FORM) .addFormDataPart( "file", file.getName(), RequestBody.create(MediaType.parse("image/png"), file) ) .addFormDataPart("timestamp", Date().time.toString()) .build() val request = Request.Builder() .url(url) .post(body) .build() httpClient.newCall(request).enqueue(object : okhttp3.Callback { override fun onFailure(call: Call?, e: IOException?) { ... } override fun onResponse(call: Call?, response: Response?) { ... } })