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How to upload image to server using multipart entity?

由 浪子不回头ぞ 提交于 2019-11-30 15:59:22

im using this code for uploading file to server : (if i understand your problem correctly)

First choose file
run one of this method in your chooose imge btn listener :

for choose photo from gallery : 

 void startImagePicker() {
            Intent intent = new Intent(Intent.ACTION_PICK);
            intent.setType("image/*");
            startActivityForResult(intent, REQUEST_SEND_IMAGE); 
        }

for take photo with camera : 

void startPhotoTaker() {

        // create Intent to take a picture and return control to the calling application
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        File photo = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM), "cs_" + new Date().getTime() + ".jpg");
        mLastPhoto = Uri.fromFile(photo);
        intent.putExtra(MediaStore.EXTRA_OUTPUT,
                mLastPhoto);

        // start the image capture Intent
        startActivityForResult(intent, REQUEST_TAKE_PICTURE);
    }

for choose any file from file manager : 

void startFilePicker() {
        Intent selectFile = new Intent(Intent.ACTION_GET_CONTENT);
        selectFile.setType("file/*");
        Intent intentChooser = Intent.createChooser(selectFile, "Select File");

        if (intentChooser != null)
            startActivityForResult(Intent.createChooser(selectFile, "Select File"), REQUEST_SEND_FILE);
    }

in your onActivityForResault method copy this :

in onActivityResualt : 

if (resultCode == RESULT_OK) {
            if (requestCode == REQUEST_SEND_IMAGE) {
                Uri uri = resultIntent.getData();
                if (uri == null) {
                    return;
                }
                File file = new File(getRealPathFromURI(uri));
                final Handler handler = new Handler();
                MediaScannerConnection.scanFile(
                        this, new String[]{file.toString()}, null,
                        new MediaScannerConnection.OnScanCompletedListener() {
                            public void onScanCompleted(String path, final Uri uri) {

                                handler.post(new Runnable() {
                                    @Override
                                    public void run() {
                                        uploadFile(uri);
                                    }
                                });
                            }
                        });
            } else if (requestCode == REQUEST_SEND_FILE |) {
                Uri uri = resultIntent.getData();
                if (uri == null) {
                    return;
                }

                uploadFile(uri);
            } else if (requestCode == REQUEST_TAKE_PICTURE) {

                File file = new File(getRealPathFromURI(mLastPhoto));
                final Handler handler = new Handler();
                MediaScannerConnection.scanFile(
                        this, new String[]{file.toString()}, null,
                        new MediaScannerConnection.OnScanCompletedListener() {
                            public void onScanCompleted(String path, final Uri uri) {

                                handler.post(new Runnable() {
                                    @Override
                                    public void run() {
                                        uploadFile(mLastPhoto);
                                    }
                                });
                            }
                        });

            } 
        }

upload file to server : 

private String uploadFile(Uri resourceUri) {
        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;
        final File sourceFile = new File(getRealPathFromURI(resourceUri));
        String serverResponseMessage = null;
        String responce = null;
        if (!sourceFile.isFile()) {

            dialog.dismiss();

            runOnUiThread(new Runnable() {
                public void run() {
                    Toast.makeText(getApplicationContext(), "File not found !", Toast.LENGTH_LONG).show();
                }
            });

            return "no file";
        } else {
            try {
                FileInputStream fileInputStream = new FileInputStream(sourceFile.getPath());
                URL url = new URL("your upload server/API 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);
                conn.setRequestProperty(POST_FIELD, sourceFile.getName());
                dos = new DataOutputStream(conn.getOutputStream());
                dos.writeBytes(twoHyphens + boundary + lineEnd);
                dos.writeBytes("Content-Disposition: form-data; name=\"" + POST_FIELD + "\";filename="
                        + sourceFile.getName() + lineEnd);
                dos.writeBytes(lineEnd);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                buffer = new byte[bufferSize];
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
                while (bytesRead > 0) {

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

                }
                dos.writeBytes(lineEnd);
                dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
                int serverResponseCode = conn.getResponseCode();
                serverResponseMessage = conn.getResponseMessage();
                Log.i("uploadFile", "HTTP Response is : "
                        + serverResponseMessage + ": " + serverResponseCode);
                if (serverResponseCode <= 200) {

                    runOnUiThread(new Runnable() {
                        public void run() {

                            Toast.makeText(PreviewActivity.this, "File Upload Complete.",
                                    Toast.LENGTH_SHORT).show();
                        }
                    });
                }
                fileInputStream.close();
                dos.flush();
                dos.close();
            } catch (FileNotFoundException e) {
                e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
            } catch (MalformedURLException ex) {
                dialog.dismiss();
                ex.printStackTrace();

                runOnUiThread(new Runnable() {
                    public void run() {

                        Toast.makeText(PreviewActivity.this, "MalformedURLException",
                                Toast.LENGTH_SHORT).show();
                    }
                });
            } catch (IOException e) {
                dialog.dismiss();
                e.printStackTrace();

                runOnUiThread(new Runnable() {
                    public void run() {
                        Toast.makeText(PreviewActivity.this, "Got Exception : see logcat ",
                                Toast.LENGTH_SHORT).show();
                    }
                });
                Log.e("Upload file to server Exception", "Exception : "
                        + e.getMessage(), e);
            }
        }
        dialog.dismiss();
        return responce;
    }  

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
    filePath = data.getData();
    try {
        bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);
        pro.setImageBitmap(bitmap);
        updatepro();

    } catch (IOException e) {
        e.printStackTrace();
    }
}
}

  VolleyMultipartRequest volleyMultipartRequest = new VolleyMultipartRequest(Request.Method.POST, UPLOAD_URL,
            new Response.Listener<NetworkResponse>() {
                @Override
                public void onResponse(NetworkResponse response) {
                    Log.d("Response", String.valueOf(response));
                    try {
                        JSONObject obj = new JSONObject(new String(response.data));

                        Toast.makeText(getApplicationContext(),"success", Toast.LENGTH_SHORT).show();


                    } catch (JSONException e) {

                        e.printStackTrace();
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
                }
            }) {

        /*
        * If you want to add more parameters with the image
        * you can do it here
        * here we have only one parameter with the image
        * which is tags
        * */
        @Override
        protected Map<String, String> getParams() throws AuthFailureError {
            Map<String, String> params = new HashMap<>();
            params.put("aid", aid);
            return params;
        }

        /*
        * Here we are passing image by renaming it with a unique name
        * */
        @Override
        protected Map<String, DataPart> getByteData() {
            Map<String, DataPart> params = new HashMap<>();
            long imagename = System.currentTimeMillis();///IMAGE NAME SETTING DURING
            params.put("img1", new DataPart(imagename + ".png", getFileDataFromDrawable(bitmap)));
            return params;

        }

    };

    //adding the request to volley
    Volley.newRequestQueue(this).add(volleyMultipartRequest);

You may use Volley, a lib from Google to handle your network request. And if you use Volley, there are also add-on which help to handle the Multipart Request. Like VolleyEx and MultiPartRequest.java

Its quite late but may be it helps someone.

Here is the complete code of sending a image file as a multipart to server

private void UploadImagep(Uri ur) {

    File sourceFile = new File(ur.getPath());


    try {
        final com.squareup.okhttp.MediaType MEDIA_TYPE_PNG = com.squareup.okhttp.MediaType.parse("image/*");

        com.squareup.okhttp.RequestBody requestBody = new MultipartBuilder()
                .type(MultipartBuilder.FORM)
                .addFormDataPart("image", "image.png", com.squareup.okhttp.RequestBody.create(MEDIA_TYPE_PNG, sourceFile))
                .build();

        com.squareup.okhttp.Request request = new com.squareup.okhttp.Request.Builder()
                .url("url")
                .put(requestBody)
                .addHeader("Authorization", "Token " + auth)
                .addHeader("Content-Type", "application/x-www-formurlencoded")

                .build();

        OkHttpClient client = new OkHttpClient();
        com.squareup.okhttp.Response response = client.newCall(request).execute();

        if (response.isSuccessful() == true) {
            super.recreate();
        } else {

        }


        System.out.println("Response data " + response);

    } catch (Exception e) {

        System.out.println("Response error is" + e);

    }


}
标签
android
json
image-uploading
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