将图像从库中上传到服务器

Question

我正在创建一个android应用程序。我需要实现一个代码，用于从图库或从相机捕获上传配置文件图片。单击要上传图片的部分将显示警报。它包括三个选项一个从相机捕获，一个从画廊，一个取消。我可以成功从相机购买图像捕获当我尝试从库上传图像我得到此错误

E / MainActivity：来自服务器的响应：java.io.FileNotFoundException：/storage/emulated/0/Pictures/Upload/IMG_20170227_142713.jpg（没有这样的文件或目录）

这是我用于警报构建器以显示选项以及打开图库或启动摄像头的代码

//code to choose profile pic
    iv.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            /*Toast.makeText(getApplicationContext(),
                    "Please choose a photo", Toast.LENGTH_LONG)
                    .show();*/
            final CharSequence[] items = { "Take Photo", "Choose from Library",
                    "Cancel" };

            AlertDialog.Builder builder = new AlertDialog.Builder(LeftMenusMediaActivity.this);
            builder.setTitle("Add Photo!");
            builder.setItems(items,new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int item) {


                    if (items[item].equals("Take Photo")) {

                        //define the file-name to save photo taken by Camera activity
                        String fileName = "new-photo-name.jpg";
                        //create parameters for Intent with filename
                        ContentValues values = new ContentValues();
                        values.put(MediaStore.Images.Media.TITLE, fileName);
                        values.put(MediaStore.Images.Media.DESCRIPTION,"Image captured by camera");
                        //imageUri is the current activity attribute, define and save it for later usage (also in onSaveInstanceState)
                        imageUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
                        //create new Intent
                        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                        imageUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);

                        intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

                        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
                        startActivityForResult(intent, PICK_Camera_IMAGE);




                    } else if (items[item].equals("Choose from Library")) {


                        try {
                            Intent gintent = new Intent();
                            gintent.setType("image/*");
                            gintent.setAction(Intent.ACTION_GET_CONTENT);

                            startActivityForResult(
                                    Intent.createChooser(gintent, "Select Picture"),
                                    PICK_IMAGE);
                        } catch (Exception e) {
                            Toast.makeText(getApplicationContext(),
                                    e.getMessage(),
                                    Toast.LENGTH_LONG).show();
                            Log.e(e.getClass().getName(), e.getMessage(), e);
                        }



                    } else if (items[item].equals("Cancel")) {
                        dialog.dismiss();
                    }
                }
            });
            builder.show();
        }
    });

这是我的onActivityresult功能

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
     selectedImageUri = null;
    String filePath = null;
    switch (requestCode) {
        case PICK_IMAGE:
            if (resultCode == Activity.RESULT_OK) {
                selectedImageUri = data.getData();
                // getPath(selectedImageUri);
                launchUploadActivity(true);
                Toast.makeText(this, selectedImageUri.toString(), Toast.LENGTH_SHORT).show();
            }
            break;
        case PICK_Camera_IMAGE:
            if (resultCode == RESULT_OK) {
                //use imageUri here to access the image
                selectedImageUri = imageUri;
                launchUploadActivity(true);
                    /*Bitmap mPic = (Bitmap) data.getExtras().get("data");
                    selectedImageUri = Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), mPic, getResources().getString(R.string.app_name), Long.toString(System.currentTimeMillis())));*/
            } else if (resultCode == RESULT_CANCELED) {
                Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT).show();
            }
            break;
    }

这是我启动上传活动的功能

 private void launchUploadActivity(boolean isImage){
    Intent i = new Intent(LeftMenusMediaActivity.this, UploadActivity.class);
    i.putExtra("filePath", selectedImageUri.getPath());
    i.putExtra("isImage", isImage);
    startActivity(i);
}

这是我的上传活动课程

public class UploadActivity extends Activity {
// LogCat tag
private static final String TAG = MainActivity.class.getSimpleName();


private String filePath = null;

long totalSize = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Changing action bar background color
 /*     getActionBar().setBackgroundDrawable(
            new ColorDrawable(Color.parseColor(getResources().getString(
                    R.color.action_bar))));*/

    // Receiving the data from previous activity
    Intent i = getIntent();

    // image or video path that is captured in previous activity
    filePath = i.getStringExtra("filePath");

    // boolean flag to identify the media type, image or video
    boolean isImage = i.getBooleanExtra("isImage", true);

    if (filePath != null) {
        // Displaying the image or video on the screen
        //previewMedia(isImage);
        new UploadFileToServer().execute();
    } else {
        Toast.makeText(getApplicationContext(),
                "Sorry, file path is missing!", Toast.LENGTH_LONG).show();
    }



}

/**
 * Uploading the file to server
 * */
private class UploadFileToServer extends AsyncTask<Void, Integer, String> {
    @Override
    protected void onPreExecute() {
        // setting progress bar to zero
    //  progressBar.setProgress(0);
        super.onPreExecute();
    }

    @Override
    protected String doInBackground(Void... params) {
        return uploadFile();
    }

    @SuppressWarnings("deprecation")
    private String uploadFile() {
        String responseString = null;

        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(AppConfig.URL_PHOTO);

        try {
            AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
                    new AndroidMultiPartEntity.ProgressListener() {


                        @Override
                        public void transferred(long num) {
                            publishProgress((int) ((num / (float) totalSize) * 100));
                        }
                    });


            File sourceFile = new File(filePath);
            ;
            // Adding file data to http body
            entity.addPart("image", new FileBody(sourceFile));

            // Extra parameters if you want to pass to server
            entity.addPart("website",
                    new StringBody("www.androidhive.info"));
            entity.addPart("email", new StringBody("abc@gmail.com"));

            totalSize = entity.getContentLength();
            httppost.setEntity(entity);

            // Making server call

            HttpResponse response = httpclient.execute(httppost);

            HttpEntity r_entity = response.getEntity();

            int statusCode = response.getStatusLine().getStatusCode();

            if (statusCode == 200) {
                // Server response

                responseString = EntityUtils.toString(r_entity);

            } 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);

        // showing the server response in an alert dialog
        showAlert(result);

        super.onPostExecute(result);

    }

}

/**
 * Method to show alert dialog
 * */
private void showAlert(String message) {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage(message).setTitle("Response from Servers")
            .setCancelable(false)
            .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    // do nothing
                }
            });
    AlertDialog alert = builder.create();
    alert.show();
}

}

从库工作上传所需的更改有哪些

Answer 1

另一答案

Answer 2

另一答案