FileNotFoundException打開失敗：在三星設備上傳任何類型的文件時ENOENT（沒有此類文件或目錄）

Question

我想通過從文件管理器中選擇文件將文件上傳到服務器所以我通過使用此代碼單擊Button打開了文件管理器，

 button_upload_attachment.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String[] galleryPermissions = {android.Manifest.permission.READ_EXTERNAL_STORAGE, android.Manifest.permission.WRITE_EXTERNAL_STORAGE};

            if (EasyPermissions.hasPermissions(CIBILCaptureandUPLOAD.this, galleryPermissions)) {

                Intent intent = new Intent();
                intent.setType("*/*");
                intent.setAction(Intent.ACTION_GET_CONTENT);
                startActivityForResult(intent, 1);
        } else {
                EasyPermissions.requestPermissions(this, "Access for storage",
                        101, galleryPermissions);
            }
        }
    });

和onActivityResult方法我做了類似的事情來獲取文件的路徑，並使UploadToserver函數上傳

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    //ImagesData = data;
    try {
        // When an Image is picked
        if (requestCode == RESULT_LOAD_IMG && resultCode == RESULT_OK
                && null != data) {

            Uri contentUri=data.getData();
            Log.e("bbbbbbbbbbbbbb", contentUri.toString());

            if(contentUri.toString().endsWith(".png")||contentUri.toString().endsWith("jpg") ||
                    contentUri.toString().endsWith(".pdf")){

                photoFile= new File(contentUri.getPath());

                if (photoFile.exists()) {

                    Log.e("photoFile", "File Exists");
                }
                if (photoFile != null) {
                    new AsyncTask<String, String, File>() {
                        ProgressDialog pd;

                        @Override
                        protected void onPreExecute() {
                            pd = ProgressDialog.show(CIBILCaptureandUPLOAD.this, "", "Compressing...");
                            Log.e("PreExecute", "Compressing");
                        }

                        @Override
                        protected File doInBackground(String[] params) {
                            return photoFile;
                        }

                        @Override
                        protected void onPostExecute(File result) {
                            pd.dismiss();
                            if (result != null) {
                                new CIBILCaptureandUPLOAD.UploadFileToServer().execute(result);
                            }
                        }
                    }.execute("");
                }

            }else {
                String[] filePathColumn = {MediaStore.Images.Media.DATA};
                Cursor cursor = getContentResolver().query(contentUri,
                        filePathColumn, null, null, null);
                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                String filePath = "";
                if (cursor.moveToFirst()) {
                    filePath = cursor.getString(columnIndex);
                }
                Log.e("PATH", filePath);

                photoFile = new File(filePath);

                if (photoFile.exists()) {

                    Log.e("photoFile", "File Exists");
                }
                if (photoFile != null) {
                    new AsyncTask<String, String, File>() {
                        ProgressDialog pd;

                        @Override
                        protected void onPreExecute() {
                            pd = ProgressDialog.show(CIBILCaptureandUPLOAD.this, "", "Compressing...");
                            Log.e("PreExecute", "Compressing");
                        }

                        @Override
                        protected File doInBackground(String[] params) {
                            return photoFile;
                        }

                        @Override
                        protected void onPostExecute(File result) {
                            pd.dismiss();
                            if (result != null) {
                                new CIBILCaptureandUPLOAD.UploadFileToServer().execute(result);
                            }
                        }
                    }.execute("");
                }
            }
        }

它在其他設備上運行良好，但在我擁有的三星設備中

 java.io.FileNotFoundException: /document/primary:Xender/other/When Strangers Meet_ 3 in 1 Box - John Harker.pdf: open failed: ENOENT (No such file or directory)

我的上傳代碼是

私有類UploadFileToServer擴展AsyncTask {private static final String TAG =“UploadFileToServer”;

    // private ProgressBar progressBar;
    // private String filePath = null;
    // private TextView txtPercentage;

    private ProgressDialog pd;
    long totalSize = 0;

    @Override
    protected void onPreExecute() {
        // setting progress bar to zero
        // progressBar.setProgress(0);
        pd = ProgressDialog.show(CIBILCaptureandUPLOAD.this, "", "Loading...");
        super.onPreExecute();
    }

    @Override
    protected void onProgressUpdate(Integer... progress) {
        // Making progress bar visible
        // progressBar.setVisibility(View.VISIBLE);
        // updating progress bar value
        pd.setMessage("Loading..." + progress[0]);
        // progressBar.setProgress(progress[0]);
        // updating percentage value
        // txtPercentage.setText(String.valueOf(progress[0]) + "%");
    }

    @Override
    protected String doInBackground(File... params) {
        return uploadFile1(params[0]);
    }

    @SuppressWarnings("deprecation")
    private String uploadFile1(File file) {
        String responseString = null;
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(AppUtill.URL_CIBIL_imageupload);
        try {
            AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
                    new AndroidMultiPartEntity.ProgressListener() {

                        @Override
                        public void transferred(long num) {
                            publishProgress((int) ((num / (float) totalSize) * 100));
                        }
                    });
            File sourceFile = file;// new File(filePath);
            entity.addPart("image", new FileBody(sourceFile));
            entity.addPart("mid", new StringBody(memberid));
            entity.addPart("did", new StringBody("0"));
            entity.addPart("fid", new StringBody(formtypeid));

            if (app_loadid == null) {
                SharedPreferences sharedPreferences = getSharedPreferences("LID", MODE_PRIVATE);
                app_loadid = sharedPreferences.getString("lid", "");
                entity.addPart("lid", new StringBody(app_loadid));
            } else {
                entity.addPart("lid", new StringBody(app_loadid));
            }

            totalSize = entity.getContentLength();
            httppost.setEntity(entity);
            // Making server call
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity r_entity = response.getEntity();
            int statusCode = response.getStatusLine().getStatusCode();
            System.out.println("statusCode +statusCode");
            if (statusCode == 200) {
                // Server response
                System.out.println("statusCode +statusCode");
                responseString = EntityUtils.toString(r_entity);
                String success = String.valueOf(responseString.contains("1"));

                if (success.matches("true")) {
                    uploadedFileCount++;
                } else {
                    runOnUiThread(new Runnable() {
                        public void run() {
                            Toast.makeText(getApplicationContext(), "File not uploaded. Please upload again...", Toast.LENGTH_SHORT).show();
                        }
                    });
                }
            } else {
                responseString = "Error occurred! Http Status Code: " + statusCode;
            }
        } catch (ClientProtocolException e) {
            responseString = e.toString();
        } catch (IOException e) {
            responseString = e.toString();
        }
        return responseString;
    }

    @Override
    protected void onPostExecute(String result) {
        Log.e(TAG, "Response from server: " + result);
        pd.dismiss();

        if (uploadedFileCount == MAX_COUNT) {
            AlertDialog.Builder alert = new AlertDialog.Builder(CIBILCaptureandUPLOAD.this);
            alert.setTitle(R.string.app_name);
            alert.setMessage("Reach to max upload limit");
            alert.setCancelable(false);
            alert.setPositiveButton("OK", null);
            alert.create().show();
        }
        // showing the server response in an alert dialog
        showAlert(result);
        AppUtill.deleteFolderAndAllFile(CIBILCaptureandUPLOAD.this);

        super.onPostExecute(result);
    }
}

Answer 1

photoFile= new File(contentUri.getPath());

查看contentUri.getPath()的值，看看它不是有效的文件系統路徑。

相反，您應該為獲得的uri打開一個InputStream，並從流中讀取文件內容。

InputStream is = getContentResolver().openInputStream(contentUri);