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上传图片进行改造

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我正在使用 Retrofit v.2.2.0 将图片上传到我的服务器,但服务器返回一个空值,表示没有上传任何图片。日志显示上传图像,上传时文件名正确。什么可能是问题,但它适用于邮递员?

UploadProfilePicture.java

public class UploadProfilePicture extends ContextWrapper {

private GetOnUpload onUpload;
private File imageFile,filesDir,file;
private Uri fileUri;
private String profilePic = "profile_pic";
private String fileName;
private ParcelFileDescriptor parcelFileDescriptor;
private FileDescriptor fileDescriptor;
private  Bitmap profileImage;
private OutputStream os;
private OkHttpLogClientAPI okHttpLogClientAPI;
private GetOnUpload mInterfaceService;

public UploadProfilePicture(Context base) {
    super(base);

    okHttpLogClientAPI = new OkHttpLogClientAPI(getBaseContext());

    mInterfaceService = okHttpLogClientAPI.logger().create(GetOnUpload.class);

}

public void uploadPic(Uri fileUri,String fileName, final OnSetUploadProfilePic setOnUpload) {
    //Build Req estBodies for the map object and a MultipartBody.Part to encapsulate the prof_pic_drawer

    this.fileUri = fileUri;
    this.fileName = fileName;
    try {
        getBitmapFromUri();
    } catch (IOException e) {
        e.printStackTrace();
    }
    file = persistImage();

    RequestBody finalRequestBody = builder.build();
    RequestBody requestFile =
            RequestBody.create(MediaType.parse("multipart/form-data"), getBytesFromBitmap(profileImage));

    // MultipartBody.Part is used to send also the actual file name
    MultipartBody.Part body =
            MultipartBody.Part.createFormData("file", "avatar.jpg", requestFile);
        Call<ResponseUserModel> call = mInterfaceService.upload(body);

        call.enqueue(new Callback<ResponseUserModel>() {

            @Override
            public void onResponse(Call<Response> call, Response<Response> response) {

                if (response.isSuccessful()) {
                    setOnUpload.uploadMessage(response.body());

                } else {
                    Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();
                }

            }

            @Override
            public void onFailure(Call<Response> call, Throwable t) {

                Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();

            }
        });
    }
}

public static byte[] getBytesFromBitmap(Bitmap bitmap) {
    if (bitmap!=null) {
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 70, stream);
        return stream.toByteArray();
    }
    return null;
}

private MultipartBody.Part prepareFilePart() {

    //TODO: Use FileUtils to get the actual file by uri

    try {
        getBitmapFromUri();
        file = persistImage();

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

    try {
        RequestBody requestFile = RequestBody.create(
                MediaType.parse(getBaseContext().getContentResolver().getType(fileUri)), file);
            return MultipartBody.Part.createFormData("file", file.getName(), requestFile);

    } catch (NullPointerException e) {

        Toast.makeText(getBaseContext(), "" + e.getMessage(), Toast.LENGTH_SHORT).show();

        return null;
    }

}

private RequestBody createPartFromString(String descriptionString) {
    return RequestBody.create(MultipartBody.FORM, descriptionString);
}

private void getBitmapFromUri() throws IOException {
    profileImage = MediaStore.Images.Media.getBitmap(this.getContentResolver(), fileUri);
}

private File persistImage() {
    filesDir = getFilesDir();
     imageFile = new File(filesDir, fileName + ".jpg");

    OutputStream os;
    try {
        os = new FileOutputStream(imageFile);
        profileImage.compress(Bitmap.CompressFormat.JPEG, 70, os);
        os.flush();
        os.close();
    } catch (Exception e) {
        Log.e(getClass().getSimpleName(), "Error writing bitmap", e);
    }

    return imageFile;
}}

GetOnUpload.java

public interface GetOnUpload {
 @Multipart
@POST(Constants.UPLOAD_URL)
Call<Response> upload(@Part MultipartBody.Part file);}

****登录

http://local.com/api/v1/avatar http/1.1 11-14 18:40:02.742 8851-9593/com.local.test D/OkHttp:Content-Type:multipart/form-data; boundary=d43da080-f2c3-4743-8cfd-9526cc0bd2f7 11-14 18:40:02.742 8851-9593/com.local.test D/OkHttp:Content-Length:12424 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:--d43da080-f2c3-4743-8cfd-9526cc0bd2f7 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:Content-Disposition:form-data; NAME = “文件”; filename =“avatar.jpg”11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:Content-Type:multipart/form-data 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:Content-Length:12201 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp:11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp:--d43da080-f2c3-4743-8cfd-9526cc0bd2f7-- 11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp: - > END POST(12424-byte body)

11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:< - 200 OK http://local.com/api/v1/avatar(587ms)11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:服务器:nginx/1.10.3(Ubuntu)11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:Content-Type:application/json 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:Transfer-Encoding:chunked 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:连接:keep-alive 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:Cache-Control:no-cache,私有 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:日期:星期二,2017 年 11 月 14 日 15:40:03 GMT 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:X-RateLimit-Limit:60 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp:X-RateLimit-Remaining:59 11-14 18:40:03.333 8851-9593/com.local.test D/OkHttp:{“user”:“失败“,”状态“:”图像文件未上传“}

3 回答

  • 2

    这个例子对我有用

    //My data manager                                        
    public void doUpload(
        Context context,
        String url) {
    
        Uri uri = Uri.parse(url);
        File file = new File(getPath(context, uri));
        RequestBody reqFile = RequestBody.create(MediaType.parse("image/*"), file);
        MultipartBody.Part body = MultipartBody.Part.createFormData("imageParameterName", file.getName(), reqFile);
    
        uploadService(body)
    
    }
    
    //REST service
    @Multipart
    @POST("upload.aspx")
    Call<DefaultDTO> uploadService(@Part MultipartBody.Part image);
    
  • 1

    似乎 OKHttp 存在问题,因此在通过改造将文件和数据发布到服务器时使用此格式

    file = new File(fileUri.getPath());
            RequestBody fileBody = RequestBody.create(MediaType.parse("image/*"),file);
            RequestBody dataBody = RequestBody.create(MediaType.parse("text/plain"), "id");
            Call<Response> call = mInterfaceService.upload(fileBody,dataBody);
    
            call.enqueue(new Callback<Response>() {
    
                @Override
                public void onResponse(Call<Response> call, Response<Response> response) {
    
                    if (response.isSuccessful()) {
                        setOnUpload.uploadMessage(response.body());
    
                        if(file.exists())
                            file.delete();
                    } else {
                        Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();
                    }
    
                }
    
    public interface GetOnUpload {
    
    @Multipart
    @POST(Constants.UPLOAD_URL)
    
    Call<Response> upload(@Part("file\";filename=\"avatar.jpg\" ") RequestBody file,@Part("id")RequestBody user);
    
     }
    
  • 0

    **** ImageFilePath

    @SuppressLint("NewApi")
    @TargetApi(Build.VERSION_CODES.KITKAT)
    public class ImageFilePath {
    
        /**
         * Method for return file path of Gallery image
         *
         * @param context
         * @param uri
         * @return path of the selected image file from gallery
         */
        static String nopath = "Select Video Only";
    
        @TargetApi(Build.VERSION_CODES.KITKAT)
        @SuppressLint("NewApi")
        public static String getPath(final Context context, final Uri uri) {
    
            // check here to KITKAT or new version
            final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
    
            // DocumentProvider
            if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
    
                // ExternalStorageProvider
                if (isExternalStorageDocument(uri)) {
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];
    
                    if ("primary".equalsIgnoreCase(type)) {
                        return Environment.getExternalStorageDirectory() + "/"
                                + split[1];
                    }
                }
                // DownloadsProvider
                else if (isDownloadsDocument(uri)) {
    
                    final String id = DocumentsContract.getDocumentId(uri);
                    final Uri contentUri = ContentUris.withAppendedId(
                            Uri.parse("content://downloads/public_downloads"),
                            Long.valueOf(id));
    
                    return getDataColumn(context, contentUri, null, null);
                }
                // MediaProvider
                else if (isMediaDocument(uri)) {
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];
    
                    Uri contentUri = null;
                    if ("image".equals(type)) {
                        contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                    } else if ("video".equals(type)) {
                        contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                    } else if ("audio".equals(type)) {
                        contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                    }
    
                    final String selection = "_id=?";
                    final String[] selectionArgs = new String[] { split[1] };
    
                    return getDataColumn(context, contentUri, selection,
                            selectionArgs);
                }
            }
            // MediaStore (and general)
            else if ("content".equalsIgnoreCase(uri.getScheme())) {
    
                // Return the remote address
                if (isGooglePhotosUri(uri))
                    return uri.getLastPathSegment();
    
                return getDataColumn(context, uri, null, null);
            }
            // File
            else if ("file".equalsIgnoreCase(uri.getScheme())) {
                return uri.getPath();
            }
    
            return nopath;
        }
    
        /**
         * Get the value of the data column for this Uri. This is <span id="IL_AD2"
         * class="IL_AD">useful</span> for MediaStore Uris, and other file-based
         * ContentProviders.
         *
         * @param context
         *            The context.
         * @param uri
         *            The Uri to query.
         * @param selection
         *            (Optional) Filter used in the query.
         * @param selectionArgs
         *            (Optional) Selection arguments used in the query.
         * @return The value of the _data column, which is typically a file path.
         */
        public static String getDataColumn(Context context, Uri uri,
                                           String selection, String[] selectionArgs) {
    
            Cursor cursor = null;
            final String column = "_data";
            final String[] projection = { column };
    
            try {
                cursor = context.getContentResolver().query(uri, projection,
                        selection, selectionArgs, null);
                if (cursor != null && cursor.moveToFirst()) {
                    final int index = cursor.getColumnIndexOrThrow(column);
                    return cursor.getString(index);
                }
            } finally {
                if (cursor != null)
                    cursor.close();
            }
            return nopath;
        }
    
        /**
         * @param uri
         * The Uri to check.
         * @return Whether the Uri authority is ExternalStorageProvider.
         */
        public static boolean isExternalStorageDocument(Uri uri) {
            return "com.android.externalstorage.documents".equals(uri
                    .getAuthority());
        }
    
        /**
         * @param uri
         *            The Uri to check.
         * @return Whether the Uri authority is DownloadsProvider.
         */
        public static boolean isDownloadsDocument(Uri uri) {
            return "com.android.providers.downloads.documents".equals(uri
                    .getAuthority());
        }
    
        /**
         * @param uri
         *            The Uri to check.
         * @return Whether the Uri authority is MediaProvider.
         */
        public static boolean isMediaDocument(Uri uri) {
            return "com.android.providers.media.documents".equals(uri
                    .getAuthority());
        }
    
        /**
         * @param uri
         *            The Uri to check.
         * @return Whether the Uri authority is Google Photos.
         */
        public static boolean isGooglePhotosUri(Uri uri) {
            return "com.google.android.apps.photos.content".equals(uri
                    .getAuthority());
        }
    }
    

    **** ChooseImg

    private void openChooseImgDialog() {
            Intent getIntent = new Intent(Intent.ACTION_GET_CONTENT);
            getIntent.setType("image/*");
    
            Intent pickIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            pickIntent.setType("image/*");
    
            Intent chooserIntent = Intent.createChooser(getIntent, "Select Image");
            chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[]{pickIntent});
    
            startActivityForResult(chooserIntent, PICK_IMAGE);
    
        }
    
        @Override
        public void onActivityResult(int requestCode, int resultCode, Intent data) {
            super.onActivityResult(requestCode, resultCode, data);
            switch (requestCode) {
                case PICK_IMAGE:
                    if (resultCode == Activity.RESULT_OK) {
                        uri = data.getData();
                        File_Path = ImageFilePath.getPath(getActivity(), data.getData());
    
                        // File_Path = RealPathUtil.getRealPathFromURI_API19(getActivity(), data.getData());
    
                        //    String filename = uri.getLastPathSegment();
    
                        Log.d("displayfiletypes","****  "+data.getData() + "         "+File_Path);
                        tv_feedbackfilename.setText(File_Path.substring(File_Path.lastIndexOf("/")+1));
    
                        try {
                            Bitmap bitmap = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), uri);
                            // Log.d(TAG, String.valueOf(bitmap));
    
                            // mImgView.setImageBitmap(bitmap);
    
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    } else {
                        Toast.makeText(getActivity(), "Something Went Wrong", Toast.LENGTH_SHORT).show();
                    }
                    break;
    
            }
        }
    

    接口

    @Multipart
    @POST("url")
    Call<ResponseBody> add_feedback(@Part MultipartBody.Part file);
    

    在您的活动中添加此代码

    Retrofit adapter = new Retrofit.Builder()
                        .baseUrl(Constandapi.ROOT_URL)
                        .build();
    
       RequestBody requestBody = RequestBody.create(MediaType.parse("*/*"), file);
    
                MultipartBody.Part fileToUpload = MultipartBody.Part.createFormData("your php file key", file.getName(), requestBody);
          Call<ResponseBody> adding_feedback = addfeedback.add_feedback(auth_key_sent, subjectstring_sent, feedbackmsg_sent, fileToUpload);
    
           adding_feedback.enqueue(new Callback<ResponseBody>() {
                @Override
                public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                    if (response.isSuccessful())
                    {
                        progressDialog.dismiss();
    
                        String result = null;
    
                        try{
                            result = response.body().string();
                            Log.d("createddates","responce"+result);
                                               }catch (IOException e){
                            e.printStackTrace();
                        }catch (JSONException jsone){
                            jsone.printStackTrace();
                        }
                    }
                }
    
                @Override
                public void onFailure(Call<ResponseBody> call, Throwable t) {
                    Toast.makeText(getActivity(), "Please try after sometime", Toast.LENGTH_SHORT).show();
    
                    Log.d("printmessages","***  "+call.toString() + "  "+t.toString());
                    progressDialog.dismiss();
    
                }
            });
    

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