我正在尝试从 PHP 服务器下载一堆文件并将它们存储在 sdcard 上。但是当我下载文件时，我收到以下错误：No of files download from server is **500 -600** after download some files **250 - 260**. 它引发了一个错误。
错误
07-10 08:40:46.228: E/File Error(1837): File id is 287 File path is http://192.168.1.21/SOCH/upload/chapter_36/5.9.pdf Synch Path is /mnt/sdcard/SOCH/36/
07-10 08:40:46.268: W/System.err(1837): java.util.concurrent.RejectedExecutionException: Task android.os.AsyncTask$3@434ef2c0 rejected from java.util.concurrent.ThreadPoolExecutor@4364f0d0[Running, pool size = 128, active threads = 128, queued tasks = 128, completed tasks = 1]
07-10 08:40:46.268: W/System.err(1837): at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:1967)
07-10 08:40:46.268: W/System.err(1837): at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:782)
07-10 08:40:46.268: W/System.err(1837): at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1303)
07-10 08:40:46.268: W/System.err(1837): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:589)
07-10 08:40:46.268: W/System.err(1837): at com.soch.webservice.FileTransferService.onStartCommand(FileTransferService.java:146)
07-10 08:40:46.278: W/System.err(1837): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2490)
07-10 08:40:46.278: W/System.err(1837): at android.app.ActivityThread.access$1900(ActivityThread.java:130)
07-10 08:40:46.278: W/System.err(1837): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
07-10 08:40:46.278: W/System.err(1837): at android.os.Handler.dispatchMessage(Handler.java:99)
07-10 08:40:46.278: W/System.err(1837): at android.os.Looper.loop(Looper.java:137)
07-10 08:40:46.278: W/System.err(1837): at android.app.ActivityThread.main(ActivityThread.java:4745)
07-10 08:40:46.278: W/System.err(1837): at java.lang.reflect.Method.invokeNative(Native Method)
07-10 08:40:46.278: W/System.err(1837): at java.lang.reflect.Method.invoke(Method.java:511)
07-10 08:40:46.278: W/System.err(1837): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
07-10 08:40:46.278: W/System.err(1837): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-10 08:40:46.278: W/System.err(1837): at dalvik.system.NativeStart.main(Native Method)
07-10 08:40:46.278: E/File Error(1837): File id is 288 File path is http://192.168.1.21/SOCH/upload/chapter_37/6.1.pdf Synch Path is /mnt/sdcard/SOCH/37/
07-10 08:40:46.308: W/System.err(1837): java.util.concurrent.RejectedExecutionException: Task android.os.AsyncTask$3@43605840 rejected from java.util.concurrent.ThreadPoolExecutor@4364f0d0[Running, pool size = 128, active threads = 128, queued tasks = 128, completed tasks = 1]
07-10 08:40:46.308: W/System.err(1837): at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:1967)
07-10 08:40:46.308: W/System.err(1837): at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:782)
07-10 08:40:46.308: W/System.err(1837): at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1303)
07-10 08:40:46.308: W/System.err(1837): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:589)
07-10 08:40:46.308: W/System.err(1837): at com.soch.webservice.FileTransferService.onStartCommand(FileTransferService.java:146)
07-10 08:40:46.308: W/System.err(1837): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2490)
07-10 08:40:46.308: W/System.err(1837): at android.app.ActivityThread.access$1900(ActivityThread.java:130)
07-10 08:40:46.308: W/System.err(1837): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
07-10 08:40:46.308: W/System.err(1837): at android.os.Handler.dispatchMessage(Handler.java:99)
07-10 08:40:46.308: W/System.err(1837): at android.os.Looper.loop(Looper.java:137)
07-10 08:40:46.308: W/System.err(1837): at android.app.ActivityThread.main(ActivityThread.java:4745)
07-10 08:40:46.308: W/System.err(1837): at java.lang.reflect.Method.invokeNative(Native Method)
07-10 08:40:46.308: W/System.err(1837): at java.lang.reflect.Method.invoke(Method.java:511)
07-10 08:40:46.308: W/System.err(1837): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
07-10 08:40:46.308: W/System.err(1837): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-10 08:40:46.308: W/System.err(1837): at dalvik.system.NativeStart.main(Native Method)
有人可以帮我解决这个问题吗？我正在使用 asynchtask 进行下载。
我的代码是
包 com.webservice；
public class FileTransferService extends Service {
private static final int CORE_POOL_SIZE = 1;
private static final int MAXIMUM_POOL_SIZE = 128;
private static final int KEEP_ALIVE = 128 ;
private static final BlockingQueue<Runnable> sPoolWorkQueue = new LinkedBlockingQueue<Runnable>(MAXIMUM_POOL_SIZE);
private static final ThreadFactory sThreadFactory = new ThreadFactory() {
private final AtomicInteger mCount = new AtomicInteger(1);
public Thread newThread(Runnable r) {
return new Thread(r, "AsyncTask #" + mCount.getAndIncrement());
}
};
public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,TimeUnit.SECONDS, sPoolWorkQueue,sThreadFactory);
int FileNo = 0;
ArrayList<String> FileId = new ArrayList<String>();
ArrayList<String> ServerPath = new ArrayList<String>();
ArrayList<String> SynchPath = new ArrayList<String>();
ArrayList<String> FileNameList = new ArrayList<String>();
String FileTransferPath = "", SDcardPath = "";
@Override
public void onCreate() {
super.onCreate();
Log.d("Service Created", "Successfully");
FileId.clear();
ServerPath.clear();
SynchPath.clear();
FileNameList.clear();
SDcardPath = Environment.getExternalStorageDirectory().getPath() + "/";
// Get FileTransfer Link From The SD Card
......
// Getting A url From DB
.....
}// End onCreate
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("Service Started", "Successfully");
Log.d("fileSize",""+FileId.size());
if (FileId.size() > 0) {
ContentValues mContentValuesUpdatefileStatus = new ContentValues();
mContentValuesUpdatefileStatus.put("Status", 1);
while (FileNo < FileId.size()) {
dbh.updateRecord("Mst_FileTransfer",mContentValuesUpdatefileStatus,"FileTransferId",FileId.get(FileNo));
try {
new DownloadFileFromURL().executeOnExecutor(THREAD_POOL_EXECUTOR,Integer.toString(FileNo));
//new DownloadFileFromURL().execute(Integer.toString(FileNo));
} catch (Exception e) {
e.printStackTrace();
Log.e("File Error", " File id is " + FileId.get(FileNo) + " File path is " + ServerPath.get(FileNo) + " Synch Path is " + SynchPath.get(FileNo));
}
FileNo +=1;
}
}
Log.d("Service Finish", "Successfully");
stopSelf();
return super.onStartCommand(intent, flags, startId);
}
class DownloadFileFromURL extends AsyncTask<String, String, String> {
int Count = 0;
int File_Completed = 0;
int FileNo;
String strServerPath,strSynchPath,strFileName;
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected synchronized String doInBackground(String... params) {
FileNo = Integer.parseInt(params[0]);
// Get File Path
strServerPath = ServerPath.get(FileNo).replaceAll(" ", "%20");
strSynchPath = SynchPath.get(FileNo);
strFileName = FileNameList.get(FileNo);
URLConnection mConnection = null;
Log.d("file", strSynchPath + strFileName);
File SynchPath = new File(strSynchPath);
if (!SynchPath.exists()) {
SynchPath.mkdirs();
}
try {
URL url = new URL(strServerPath);
mConnection = url.openConnection();
mConnection.connect();
// getting file length
int lenghtOfFile = mConnection.getContentLength();
// Output stream to write file
File outputFile = new File(SynchPath, strFileName);
FileOutputStream mFileOutputStream = new FileOutputStream(
outputFile);
InputStream mInputStream = url.openStream();
byte data[] = new byte[1024];
long File_Completed_Size = 0;
while ((Count = mInputStream.read(data)) != -1) {
File_Completed_Size += Count;
File_Completed = (int) ((File_Completed_Size * 100) / lenghtOfFile);
// writing data to file
mFileOutputStream.write(data, 0, Count);
}
// flushing output
mFileOutputStream.flush();
// closing streams
mFileOutputStream.close();
mInputStream.close();
} catch (IOException IO) {
Log.e("File Exception"," File id is " + FileId.get(FileNo) + " File path is " + strServerPath + " Synch Path is " + strSynchPath + "FileName " + strFileName);
IO.printStackTrace();
} catch (Exception e) {
Log.e("File Exception"," File id is " + FileId.get(FileNo) + " File path is " + strServerPath + " Synch Path is " + strSynchPath + "FileName " + strFileName);
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if (File_Completed == 100) {
Log.d("File Downlode Status for " + SynchPath.get(FileNo), "" + File_Completed + "%");
}
}
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
}