尝试使用以下代码从服务器下载大约 38 个视频文件，由于某种原因，它在下载过程中不断停止在不同的点，我主要得到一个
java.net.SocketException: Connection timed out
我想知道如何以更少的错误执行此操作
我的代码如下
private class DownloadFile extends AsyncTask<String, Integer, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog.show();
}
@Override
protected void onProgressUpdate(Integer... progress) {
super.onProgressUpdate(progress);
mProgressDialog.setProgress(progress[0]);
mProgressDialog.setMessage("Downloading "+(i+1)+" of "+downloadURL.length);
}
@Override
protected String doInBackground(String... sUrl) {
try {
for(int i = 0; i < sUrl.length; i++){
URL url = new URL("http://myvideo.info/videos/"+sUrl[i]);
URLConnection connection = null;
try {
connection = url.openConnection();
connection.setConnectTimeout(15000);
connection.setReadTimeout(15000);
} catch (java.net.SocketTimeoutException e) {
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
connection.connect();
// this will be useful so that you can show a typical 0-100% progress bar
int fileLength = connection.getContentLength();
// download the file
InputStream input = new BufferedInputStream(url.openStream());
OutputStream output = new FileOutputStream("/sdcard/"+file_rename[i]);
byte data[] = new byte[1024];
long total = 0;
int count;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
publishProgress((int) (total * 100 / fileLength));
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
}
} catch (Exception e) {
Log.e("PP", "PP", e);
}
return null;
}
protected void onPostExecute(String jsonResult) {
mProgressDialog.dismiss();
}
}