android mp3文件播放功能，出现错误，求救各位大神

我试图在按播放键的时候，程序从WEB服务器上（自己主机上搭建的127.0.0.1/8080/Music/aa.mp3）编译没问题，运行时有错！不能播放，异常如下：
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): Permission denied
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): java.net.SocketException: Permission denied
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at org.apache.harmony.luni.platform.OSNetworkSystem.socket(Native Method)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at dalvik.system.BlockGuard$WrappedNetworkSystem.socket(BlockGuard.java:335)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:216)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at java.net.Socket.checkOpenAndCreate(Socket.java:802)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at java.net.Socket.connect(Socket.java:948)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:75)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at org.apache.harmoorg.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.makeConnection(HttpURLConnectionImpl.java:267)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:205)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at com.android.EX08.EX08_08Activity.setDataSource(EX08_08Activity.java:232)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at com.android.EX08.EX08_08Activity.access$10(EX08_08Activity.java:220)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at com.android.EX08.EX08_08Activity$9.run(EX08_08Activity.java:195)
09-22 13:11:38.303: E/Hippo_URL_MP3_Player(333): at java.lang.Thread.run(Thread.java:1019)
09-22 13:36:53.103: E/MediaPlayer(333): start called in state 1
09-22 13:36:53.103: E/MediaPlayer(333): error (-38, 0)
09-22 13:36:53.133: E/MediaPlayer(333): Error (-38,0)
09-22 13:36:55.323: E/MediaPlayer(333): Attempt to perform seekTo in wrong state: mPlayer=0x0, mCurrentState=0
09-22 13:36:56.633: E/MediaPlayer(333): Attempt to perform seekTo in wrong state: mPlayer=0x0, mCurrentState=0
09-22 13:36:58.463: E/MediaPlayer(333): start called in state 0
09-22 13:36:59.913: E/MediaPlayer(333): Attempt to perform seekTo in wrong state: mPlayer=0x0, mCurrentState=0
09-22 13:37:00.743: E/MediaPlayer(333): Attempt to perform seekTo in wrong state: mPlayer=0x0, mCurrentState=0
09-22 13:37:01.995: E/MediaPlayer(333): start called in state 0
09-22 13:37:03.063: E/MediaPlayer(333): Attempt to perform seekTo in wrong state: mPlayer=0x0, mCurrentState=0
09-22 13:37:03.063: E/MediaPlayer(333): pause called in state 0
09-22 13:37:03.063: E/MediaPlayer(333): stop called in state 0
09-22 13:37:04.673: E/AndroidRuntime(333): FATAL EXCEPTION: main
09-22 13:37:04.673: E/AndroidRuntime(333): java.lang.IllegalStateException
09-22 13:37:04.673: E/AndroidRuntime(333): at android.media.MediaPlayer._stop(Native Method)
09-22 13:37:04.673: E/AndroidRuntime(333): at android.media.MediaPlayer.stop(MediaPlayer.java:832)
09-22 13:37:04.673: E/AndroidRuntime(333): at com.android.EX08.EX08_08Activity.playVideo(EX08_08Activity.java:213)
09-22 13:37:04.673: E/AndroidRuntime(333): at com.android.EX08.EX08_08Activity.access$1(EX08_08Activity.java:136)
09-22 13:37:04.673: E/AndroidRuntime(333): at com.android.EX08.EX08_08Activity$1.onClick(EX08_08Activity.java:58)
09-22 13:37:04.673: E/AndroidRuntime(333): at android.view.View.performClick(View.java:2485)
09-22 13:37:04.673: E/AndroidRuntime(333): at android.view.View$PerformClick.run(View.java:9080)
09-22 13:37:04.673: E/AndroidRuntime(333): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-22 13:37:04.673: E/AndroidRuntime(333): at dalvik.system.NativeStart.main(Native Method)

关键代码贴上：

public class EX08_08Activity extends Activity
{
private TextView mTextView01;
private MediaPlayer mMediaPlayer01;
private ImageButton mPlay, mReset, mPause, mStop;
private boolean bIsReleased = false;
private boolean bIsPaused = false;
private static final String TAG = "Hippo_URL_MP3_Player";
// private SurfaceView mSurfaceView01;
// private SurfaceHolder mSurfaceHolder01;

private String currentFilePath = "";

private String currentTempFilePath = "";
private String strVideoURL = "";

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

//strVideoURL = "http://www.dubblogs.cc:8751/Android/Test/Media/mp3/test.mp3";
strVideoURL = "http://localhost/:8080/Music/aa.mp3";

mTextView01 = (TextView)findViewById(R.id.myTextView1);

getWindow().setFormat(PixelFormat.TRANSPARENT);

mPlay = (ImageButton)findViewById(R.id.play);
mReset = (ImageButton)findViewById(R.id.reset);
mPause = (ImageButton)findViewById(R.id.pause);
mStop = (ImageButton)findViewById(R.id.stop);

mPlay.setOnClickListener(new ImageButton.OnClickListener()
{
public void onClick(View view)
{
playVideo(strVideoURL);
mTextView01.setText
(
getResources().getText(R.string.str_play).toString()+
"\n"+ strVideoURL
);
}
});


private void playVideo(final String strPath)
{
try
{
if (strPath.equals(currentFilePath)&& mMediaPlayer01 != null)
{
mMediaPlayer01.start();
return;
}

currentFilePath = strPath;

mMediaPlayer01 = new MediaPlayer();
mMediaPlayer01.setAudioStreamType(2);

mMediaPlayer01.setOnErrorListener(new MediaPlayer.OnErrorListener()
{
public boolean onError(MediaPlayer mp, int what, int extra)
{
//TODO Auto-generated method stub
Log.i(TAG, "Error on Listener, what: " + what + "extra: " + extra);
return false;
}
});

mMediaPlayer01.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener()
{
public void onBufferingUpdate(MediaPlayer mp, int percent)
{
//TODO Auto-generated method stub
Log.i(TAG, "Update buffer: " + Integer.toString(percent)+ "%");
}
});

mMediaPlayer01.setOnCompletionListener(new MediaPlayer.OnCompletionListener()
{
public void onCompletion(MediaPlayer mp)
{
//TODO Auto-generated method stub
delFile(currentTempFilePath);
Log.i(TAG,"mMediaPlayer01 Listener Completed");
}
});

mMediaPlayer01.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
public void onPrepared(MediaPlayer mp)
{
//TODO Auto-generated method stub
Log.i(TAG,"Prepared Listener");
}
});

Runnable r = new Runnable()
{
public void run()
{
try
{
setDataSource(strPath);
Log.i(TAG, "Duration: " + mMediaPlayer01.getDuration());

mMediaPlayer01.start();
bIsReleased = false;
}
catch (Exception e)
{
Log.e(TAG, e.getMessage(), e);
}
}
};
new Thread(r).start();
}
catch(Exception e)
{
if (mMediaPlayer01 != null)
{
mMediaPlayer01.stop();
mMediaPlayer01.release();
}
e.printStackTrace();
}
}

private void setDataSource(String strPath) throws Exception
{
if (!URLUtil.isNetworkUrl(strPath))
{
mMediaPlayer01.setDataSource(strPath);
}
else
{
if(bIsReleased == false)
{
URL myURL = new URL(strPath);
URLConnection conn = myURL.openConnection();
conn.connect();

InputStream is = conn.getInputStream();
if (is == null)
{
throw new RuntimeException("stream is null");
}

File myTempFile = File.createTempFile("hippoplayertmp", "."+getFileExtension(strPath));
currentTempFilePath = myTempFile.getAbsolutePath();

// currentTempFilePath = "/sdcard/hippoplayertmp39327.mp3"


if(currentTempFilePath!="")
{
Log.i(TAG, currentTempFilePath);
}


FileOutputStream fos = new FileOutputStream(myTempFile);
byte buf[] = new byte[128];
do
{
int numread = is.read(buf);
if (numread <= 0)
{
break;
}
fos.write(buf, 0, numread);
}while (true);

mMediaPlayer01.setDataSource(currentTempFilePath);
try
{
is.close();
}
catch (Exception ex)
{
Log.e(TAG, "error: " + ex.getMessage(), ex);
}
}
}
}

private String getFileExtension(String strFileName)
{
File myFile = new File(strFileName);
String strFileExtension=myFile.getName();
strFileExtension=(strFileExtension.substring(strFileExtension.lastIndexOf(".")+1)).toLowerCase();
if(strFileExtension=="")
{
strFileExtension = "dat";
}
return strFileExtension;
}

private void delFile(String strFileName)
{
File myFile = new File(strFileName);
if(myFile.exists())
{
myFile.delete();
}
}


}

求大神指教，并告知错在何处