【发布时间】：2017-07-17 20:35:40
【问题描述】：
我正在创建一个安卓应用。我需要实现一个代码，用于从图库或通过从相机捕获上传个人资料图片。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捉，一个从画廊拍摄，一个取消。我可以成功 当我尝试从图库上传图像时，从相机购买中捕获的图像出现此错误
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）
这是我用来提醒生成器显示选项以及打开图片库或启动相机的代码
//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onActivity结果函数
@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);
}
这是我的上传活动类
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();
}
}
从图库上传需要进行哪些更改
【问题讨论】：
-
请参考此链接，这将有助于stackoverflow.com/questions/28000218/…
-
也许您应该尝试上传位图而不是传递文件路径，因为 Web 服务期望一个文件并且您正在提供一个字符串
-
Response from server: java.io.FileNotFoundException: /storage/emulated/0/Pictures/Upload/IMG_20170227_142713.jpg (No such file or directory)。这是来自服务器的非常奇怪的响应！第一：为什么服务器要知道 Android 设备上文件的路径？第二：哪个服务器会尝试打开 Android 设备上的文件？ -
如果您在上传从图库中挑选的文件时遇到问题，那么您应该只发布该代码。现在你用各种其他的东西来打扰我们。您应该只显示相关代码。您发布了太多不相关的代码，这使得深入研究您的问题变得不愉快。
-
这里的图片库和相机都使用相同的函数上传到服务器。我只指定了在函数内的相机或画廊之间进行选择的选项。我没有指定任何不相关的代码
标签： android image file-upload upload