java-FileNotFoundException打开失败：Samsung设备上载任何类型的文件时,ENOENT(无此类文件或目录)

概述我想通过从文件管理器中选择文件来将文件上传到服务器,所以我通过使用此代码单击“按钮”来打开文件管理器,button_upload_attachment.setOnClickListener(newView.OnClickListener(){@OverridepublicvoidonClick(Viewv){String[]gallery

我想通过从文件管理器中选择文件来将文件上传到服务器,所以我通过使用此代码单击“按钮”来打开文件管理器,

 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,我已经做了类似的事情来获取文件的路径,并让UploadToserver函数可以上传

@OverrIDepublic 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("");                }            }        }

它在其他设备上效果很好,但是在三星设备上

 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)

我的上传代码是

私有类UploadfileToServer扩展了AsyncTask {
        私有静态最终字符串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);    }}

解决方法:

photofile= new file(contentUri.getPath());

查看contentUri.getPath()的值,并确认它不是有效的文件系统路径.

相反,您应该为获取的uri打开inputStream并从流中读取文件内容.

inputStream is = getContentResolver().openinputStream(contentUri);

总结

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