我正在使用DownloadManager下载以下网址：
http://dj-videos.us/Music/XclusiveSinGleTrack/320%20Kbps/November%202013/Yo%20Yo%20Honey%20Singh%20-%20Blue%20Eyes- [DJKANG.Com] .MP3
但是下载失败了。我甚至在浏览器上点击了网址，它运行正常。这是url解析的问题吗？
代码：DDownloadService.java
public class DDownloadService extends Service {
private Looper mServiceLooper;
private ServiceHandler mServiceHandler;
Context conte;
// NotificationManager notificationManager;
// NotificationCompat.Builder mBuilder;
boolean playing = false;
Runnable runnable;
SharedPreferences pre;
static int countOfCurrent = 0;
String downloadName, downloadUrl;
NotificationManager notificationManager;
NotificationCompat.Builder mBuilder;
// ..
static int downloadNumber = 0;
DownloadManager mgr[] = new DownloadManager[100];
long downloadIds[] = new long[100];
BroadcastReceiver cancelDownload;
private final class ServiceHandler extends Handler {
public ServiceHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
try {
Thread.sleep(5000);
} catch (InterruptedException e1) {
e1.printStackTrace();
}
downloadNumber++;
downloadName = pre.getString("downloadname", "");
downloadName = viewSD(downloadName);
downloadUrl = pre.getString("downloadurl", "");
downloadName = downloadName.toLowerCase();
pre.edit()
.putString(
"songsInDownload",
pre.getString("songsInDownload", "") + "|"
+ downloadName).commit();
pre.edit().putInt(downloadName + "no", +downloadNumber).commit();
mgr[downloadNumber] = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
try {
countOfCurrent++;
downloadIds[downloadNumber] = mgr[downloadNumber]
.enqueue(new DownloadManager.Request(Uri
.parse(downloadUrl))
.setAllowedNetworkTypes(
DownloadManager.Request.NETWORK_WIFI
| DownloadManager.Request.NETWORK_MOBILE)
.setAllowedOverRoaming(false)
.setTitle("Downloading")
.setDescription(downloadName)
.setNotificationVisibility(
DownloadManager.Request.VISIBILITY_HIDDEN)
.setDestinationInExternalPublicDir(
Environment.DIRECTORY_MUSIC,
downloadName)
.setVisibleInDownloadsUi(false));
pre.edit()
.putLong(downloadName + "id",
downloadIds[downloadNumber]).commit();
Timer myTimer = new Timer();
myTimer.schedule(new RegrowCornAnimate(downloadNumber,
downloadName), 0, 10);
} catch (IllegalStateException e) {
Toast.makeText(getBaseContext(), "No storage found!",
Toast.LENGTH_SHORT).show();
e.printStackTrace();
} catch (Exception e) {
Toast.makeText(getBaseContext(), " Something wrong happened!",
Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
}
@Override
public void onCreate() {
conte = this;
pre = getSharedPreferences("download", 0);
downloadName = pre.getString("downloadname", "");
downloadUrl = pre.getString("downloadurl", "");
cancelDownload = new BroadcastReceiver() {
@Override
public void onReceive(Context arg0, Intent arg1) {
try {
mgr[pre.getInt(arg1.getExtras().getString("name") + "no", 0)]
.remove(pre.getLong(
arg1.getExtras().getString("name") + "id",
0));
} catch (Exception e) {
e.printStackTrace();
}
}
};
registerReceiver(cancelDownload, new IntentFilter("cancelIt"));
notificationManager = (NotificationManager) conte
.getSystemService(Context.NOTIFICATION_SERVICE);
mBuilder = new NotificationCompat.Builder(conte)
.setSmallIcon(R.drawable.icon)
.setContentTitle("Downloading in progress").setContentText("");
startForeground(55, mBuilder.build());
notificationManager.cancel(55);
HandlerThread thread = new HandlerThread("ServiceStartArguments", 0);
// //..................
// notificationManager = (NotificationManager) conte
// .getSystemService(Context.NOTIFICATION_SERVICE);
// mBuilder = new NotificationCompat.Builder(conte);
// RemoteViews remoteViews = new RemoteViews(getPackageName(),
// R.layout.notification_layout);
// try {
// mBuilder.setSmallIcon(R.drawable.icon);
// mBuilder.setAutoCancel(false).setOngoing(true)
// .setContent(remoteViews);
// Uri uri = RingtoneManager
// .getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
// mBuilder.setSound(uri);
// notificationManager.notify(Mp3Constants.NOTIFICATION_NUMBER,
// mBuilder.build());
// } catch (Exception e) {
// e.printStackTrace();
// }
// //...................
thread.start();
mServiceLooper = thread.getLooper();
mServiceHandler = new ServiceHandler(mServiceLooper);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// online = intent.getExtras().getString("online");
// link = intent.getExtras().getString("link");
// name = intent.getExtras().getString("name");
Message msg = mServiceHandler.obtainMessage();
msg.arg1 = startId;
mServiceHandler.sendMessage(msg);
return START_NOT_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onDestroy() {
super.onDestroy();
unregisterReceiver(cancelDownload);
}
class RegrowCornAnimate extends TimerTask {
private final int serial;
private final String name_of_da;
boolean startFlag = true, errorFlag = true;
RegrowCornAnimate(int serial, String name) {
this.serial = serial;
this.name_of_da = name;
}
public void run() {
// Do stuff
int dl_progress = 0;
try {
DownloadManager.Query q = new DownloadManager.Query();
q.setFilterById(downloadIds[serial]);
Cursor c = mgr[serial].query(q);
c.moveToFirst();
long bytes_downloaded = c
.getInt(c
.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
long bytes_total = c
.getInt(c
.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
dl_progress = (int) ((bytes_downloaded * 100) / bytes_total);
pre.edit().putInt(name_of_da, dl_progress).commit();
switch (c.getInt(c
.getColumnIndex(DownloadManager.COLUMN_STATUS))) {
case DownloadManager.STATUS_FAILED:
// msg = "Download failed!";
// Toast.makeText(getBaseContext(), "Url Broken!",
// Toast.LENGTH_SHORT).show();
sendNotification(1, serial, name_of_da, dl_progress);
this.cancel();
countOfCurrent--;
if (countOfCurrent == 0)
stopSelf();
break;
case DownloadManager.STATUS_PAUSED:
// msg = "Download paused!";
if (errorFlag) {
errorFlag = false;
sendNotification(7, serial, name_of_da, dl_progress);
}
break;
case DownloadManager.STATUS_PENDING:
// msg = "Download pending!";
sendNotification(0, serial, name_of_da, dl_progress);
break;
case DownloadManager.STATUS_RUNNING:
// msg = "Download in progress!";
errorFlag = true;
if (startFlag) {
if (verifyFromSD(name_of_da)) {
startFlag = false;
sendBroadcast(new Intent("start"));
}
}
sendNotification(0, serial, name_of_da, dl_progress);
break;
case DownloadManager.STATUS_SUCCESSFUL:
// msg = "Download complete!";
pre.edit()
.putString(
"songsInDownload",
pre.getString("songsInDownload", "")
.replace("|" + name_of_da, ""))
.commit();
pre.edit().putInt(name_of_da, 100);
sendNotification(0, serial, name_of_da, dl_progress);
this.cancel();
countOfCurrent--;
if (countOfCurrent == 0)
stopSelf();
break;
default:
// msg = "Download is nowhere in sight";
sendNotification(10, serial, name_of_da, dl_progress);
this.cancel();
countOfCurrent--;
if (countOfCurrent == 0)
stopSelf();
break;
}
c.close();
} catch (Exception e) {
e.printStackTrace();
sendNotification(7, serial, name_of_da, dl_progress);
cancel();
countOfCurrent--;
if (countOfCurrent == 0)
stopSelf();
}
}
}
public void sendNotification(int tmout, int nin, String name, int progress) {
if (tmout == 0) {
// notificationManager.notify(nin, mBuilder.build());
if (progress >= 100) {
// notificationManager.cancel(nin);
mBuilder.setSmallIcon(R.drawable.icon)
.setContentTitle("Completed").setContentText(name)
.setAutoCancel(true).setOngoing(false)
.setProgress(100, 100, false);
Uri ttt = Uri.parse(Environment.getExternalStorageDirectory()
.toString() + "/Music/" + name);
pre.edit().putInt("retry", 1).commit();
Intent inten = new Intent(Intent.ACTION_VIEW, ttt);
String arr[] = name.split("\\.");
inten.setDataAndType(ttt, "audio/" + arr[arr.length - 1]);
PendingIntent i = PendingIntent.getActivity(getBaseContext(),
0, inten, 0);
mBuilder.setContentIntent(i);
notificationManager.notify(nin, mBuilder.build());
} else {
mBuilder.setContentTitle("Downloading: " + name)
.setContentText(progress + " %")
.setSmallIcon(R.drawable.icon).setAutoCancel(false)
.setOngoing(true);
mBuilder.setProgress(100, progress, false);
notificationManager.notify(nin, mBuilder.build());
}
} else {
if (tmout == 1) {
mBuilder.setSmallIcon(R.drawable.icon)
.setContentTitle("Failed: " + name)
.setContentText(progress + " %").setAutoCancel(true)
.setProgress(100, progress, false).setOngoing(false);
// Intent intnt = new Intent(Mp3Constants.NOTIFICATION);
// intnt.putExtra("resume", "1");
// intnt.putExtra("url", urlD);
// intnt.putExtra("name", name);
// intnt.putExtra("nin", nin);
// PendingIntent i = PendingIntent
// .getBroadcast(conte, 0, intnt, 0);
// mBuilder.setContentIntent(i);
} else if (tmout == 7) {
mBuilder.setSmallIcon(R.drawable.icon)
.setContentTitle("Cancelled: " + name)
.setAutoCancel(true).setProgress(100, progress, false)
.setOngoing(false);
// Intent intnt = new Intent(Mp3Constants.NOTIFICATION);
// intnt.putExtra("resume", "1");
// intnt.putExtra("url", urlD);
// intnt.putExtra("name", name);
// intnt.putExtra("nin", nin);
// PendingIntent i = PendingIntent
// .getBroadcast(conte, 0, intnt, 0);
// mBuilder.setContentIntent(i);
} else {
mBuilder.setSmallIcon(R.drawable.icon)
.setContentTitle("Interrupted: " + name)
.setContentText("No storage found").setAutoCancel(true)
.setOngoing(false);
}
notificationManager.notify(nin, mBuilder.build());
}
}
private String viewSD(String naame) {
File f = new File(Environment.getExternalStorageDirectory().toString()
+ "/Music");
File[] files = f.listFiles();
if (files == null) {
return naame;
}
while (true) {
String newName = naame;
naame = relooper(files, newName);
if (newName.equals(naame))
break;
}
return naame;
}
public String relooper(File[] files, String name) {
int send = files.length;
for (int i = 0; i < send; i++) {
File file = files[i];
String myfile = file
.getPath()
.substring(file.getPath().lastIndexOf("/") + 1,
file.getPath().length()).toLowerCase();
if (name.equalsIgnoreCase(myfile))
return "copy_of_" + name;
}
return name;
}
private boolean verifyFromSD(String naame) {
File f = new File(Environment.getExternalStorageDirectory().toString()
+ "/Music");
File[] files = f.listFiles();
if (files == null) {
return false;
}
int send = files.length;
for (int i = 0; i < send; i++) {
File file = files[i];
String myfile = file
.getPath()
.substring(file.getPath().lastIndexOf("/") + 1,
file.getPath().length()).toLowerCase();
if (naame.equalsIgnoreCase(myfile))
return true;
}
return false;
}
}
编辑：我从logcat找到了问题：
01-07 11:47:37.313: W/DownloadManager(18893): Exception for id 285: Illegal character in path at index 115: http://dj-videos.us/Music/XclusiveSinGleTrack/320%20Kbps/November%202013/Yo%20Yo%20Honey%20Singh%20-%20Blue%20Eyes-[DJKANG.Com].mp3
01-07 11:47:37.313: W/DownloadManager(18893): java.lang.IllegalArgumentException: Illegal character in path at index 115: http://dj-videos.us/Music/XclusiveSinGleTrack/320%20Kbps/November%202013/Yo%20Yo%20Honey%20Singh%20-%20Blue%20Eyes-[DJKANG.Com].mp3
01-07 11:47:37.313: W/DownloadManager(18893): at java.net.URI.create(URI.java:727)
01-07 11:47:37.313: W/DownloadManager(18893): at android.net.Proxy.getProxy(Proxy.java:113)
01-07 11:47:37.313: W/DownloadManager(18893): at android.net.Proxy.getPreferredHttpHost(Proxy.java:218)
01-07 11:47:37.313: W/DownloadManager(18893): at com.android.providers.downloads.DownloadThread.run(DownloadThread.java:174)
但我仍然需要知道使用哪种格式来解析DownloadManager的URL。
答案 0 :(得分：0)
当网址包含 [ ] 等非法字符时，会发生IllegalArgumentException。如评论中所述，您需要使用URLEncoder对这些字符进行编码。
我在我的代码中以这种方式实现了它 -
private String checkUrl(String url) {
if(url.contains("[")) {
String[] a = url.split("\\[");
String b = "[" + a[1]; //contains text after [ e.g. [DJKANG.Com].mp3
url = a[0] + URLEncoder.encode(b, "UTF-8"); // encodes illegal characters
}
return url;
}