2019独角兽企业重金招聘Python工程师标准>>> 
这是报的错误：
04-8 06:36:48.372: W/InputEventReceiver(7867): Attempted to finish an input event but the input event receiver has already been disposed.
04-8 06:36:48.372: W/InputEventReceiver(7867): Attempted to finish an input event but the input event receiver has already been disposed.
04-8 06:36:48.372: I/Choreographer(7867): Skipped 87 frames! The application may be doing too much work on its main thread.
04-8 06:36:48.372: W/ViewRootImpl(7867): Dropping event due to root view being removed: MotionEvent { action=ACTION_UP, id[0]=0, x[0]=287.0, y[0]=-358.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=5442878, downTime=5442722, deviceId=0, source=0x1002 }
04-8 06:37:31.392: I/uploadFile(7867): HTTP Response is : Internal Server Error: 50001-18 06:37:31.522: E/Async Time(7867): Async entered POSTTTT这是源码：
private class ImageUploadTask extends AsyncTask {
private String webAddressToPost = "http://10.0.2.2:3000/wardrobe";
// File sourceFile = new File(imageview);
String fileName = "/sdcard/IMG_2016.JPG";
File sourceFile = new File(fileName );
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
// private ProgressDialog dialog
private ProgressDialog progressDialog = new ProgressDialog(
wardrobe.this);
@Override
protected void onPreExecute() {
Log.e("Async Time", "Async entered 1 PREEE");
progressDialog.setMessage("Uploading...");
progressDialog.show();
}
@Override
protected String doInBackground(String... arg0) {
Log.e("Async Time", "Async entered DURINGG");
try {
// open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
URL url = new URL(webAddressToPost);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+ " F:/wamp/wamp/www/uploads";
imageTextSelect.setText(msg);
Toast.makeText(wardrobe.this, "File Upload Complete.",
Toast.LENGTH_SHORT).show();
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String result) {
Log.e("Async Time", "Async entered POSTTTT");
progressDialog.dismiss();
Toast.makeText(getApplicationContext(), "file uploaded",
Toast.LENGTH_LONG).show();
}
} 解决办法：
将String fileName = "/sdcard/IMG_2016.JPG"; 改为：
String fileName = Environment.getExternalStorageDirectory().getAbsolutePath() +
"/IMG_2016.JPG";