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我的應用程序檢查是否有更新版本要使用。該過程在版本2中運行良好，但版本4.1不起作用。發生Android中的失敗inputStream.getInputStream（）
private class ExecuteUpdate implements Runnable {
@Override
public void run() {
try {
updateIntent = Updater.executeUpdate(updateHandler);
updateHandler.sendEmptyMessage(0);
} catch (IOException e) {
Message msg = new Message();
msg.obj = e;
updateHandler.sendMessage(msg);
}
}
}
public static Intent executeUpdate(Handler updateHandler) throws IOException {
URL url = new URL(Application.getInstance().getURL()
+ "/Prisma3Mobile/Prisma3Mobile.apk");
HttpURLConnection urlConnection = (HttpURLConnection) url
.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.connect();
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard, "Prisma3Mobile.apk");
FileOutputStream fileOutput = new FileOutputStream(file);
InputStream inputStream = urlConnection.getInputStream();
byte[] buffer = new byte[1024];
int bufferLength = 0;
int contentLength = urlConnection.getContentLength();
// Determina valor máximo do ProgressDialog
Message msg = new Message();
msg.obj = contentLength;
updateHandler.sendMessage(msg);
while ((bufferLength = inputStream.read(buffer)) > 0) {
// Atualiza ProgressDialog
msg = new Message();
msg.obj = file.length();
updateHandler.sendMessage(msg);
fileOutput.write(buffer, 0, bufferLength);
}
fileOutput.close();
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(
Uri.fromFile(new File(Environment.getExternalStorageDirectory()
+ "/Prisma3Mobile.apk")),
"application/vnd.android.package-archive");
return intent;
}
以下問題：
07-23 08:04:24.625: W/System.err(14510): org.apache.http.conn.HttpHostConnectException: Connection to http://"192.168.1.30" refused
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:183)
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:670)
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:509)
07-23 08:04:24.655: W/System.err(14510): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
07-23 08:04:24.655: W/System.err(14510): at com.sisteplantbrasil.util.Updater.checkForUpdates(Updater.java:74)
07-23 08:04:24.655: W/System.err(14510): at com.sisteplantbrasil.Main$Checkcnn.doInBackground(Main.java:133)
07-23 08:04:24.655: W/System.err(14510): at com.sisteplantbrasil.Main$Checkcnn.doInBackground(Main.java:1)
07-23 08:04:24.655: W/System.err(14510): at android.os.AsyncTask$2.call(AsyncTask.java:287)
07-23 08:04:24.655: W/System.err(14510): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
07-23 08:04:24.660: W/System.err(14510): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
07-23 08:04:24.665: W/System.err(14510): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
07-23 08:04:24.665: W/System.err(14510): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
07-23 08:04:24.665: W/System.err(14510): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
07-23 08:04:24.665: W/System.err(14510): at java.lang.Thread.run(Thread.java:856)
07-23 08:04:24.665: W/System.err(14510): Caused by: java.net.ConnectException: failed to connect to /192.168.1.30 (port 80): connect failed: ENETUNREACH (Network is unreachable)
07-23 08:04:24.670: W/System.err(14510): at libcore.io.IoBridge.connect(IoBridge.java:114)
07-23 08:04:24.670: W/System.err(14510): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
07-23 08:04:24.670: W/System.err(14510): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
07-23 08:04:24.670: W/System.err(14510): at java.net.Socket.connect(Socket.java:842)
07-23 08:04:24.670: W/System.err(14510): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
07-23 08:04:24.670: W/System.err(14510): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
07-23 08:04:24.670: W/System.err(14510): ... 16 more
07-23 08:04:24.670: W/System.err(14510): Caused by: libcore.io.ErrnoException: connect failed: ENETUNREACH (Network is unreachable)
07-23 08:04:24.675: W/System.err(14510): at libcore.io.Posix.connect(Native Method)
07-23 08:04:24.675: W/System.err(14510): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
07-23 08:04:24.675: W/System.err(14510): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
07-23 08:04:24.675: W/System.err(14510): at libcore.io.IoBridge.connect(IoBridge.java:112)