我在使用Android时看到了一些关于SocketException的问题,但是他们都没有覆盖我在清单中指定的INTERNET权限的BindException。请求INTERNET权限的BindException
这里是我的清单的一部分:
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.READ_OWNER_DATA"></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<uses-permission android:name="android.permission.ACCOUNT_MANAGER"></uses-permission>
<uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS"></uses-permission>
这里是我的logcat输出的相关部分:
04-22 14:49:06.117: DEBUG/MyLibrary(4844): Address to bind: 192.168.1.14 port: 843 04-22 14:49:06.197: WARN/System.err(4844): java.net.BindException: Permission denied (maybe missing INTERNET permission) 04-22 14:49:06.207: WARN/System.err(4844): at org.apache.harmony.luni.platform.OSNetworkSystem.socketBindImpl(Native Method) 04-22 14:49:06.207: WARN/System.err(4844): at org.apache.harmony.luni.platform.OSNetworkSystem.bind(OSNetworkSystem.java:107) 04-22 14:49:06.217: WARN/System.err(4844): at org.apache.harmony.luni.net.PlainSocketImpl.bind(PlainSocketImpl.java:184) 04-22 14:49:06.217: WARN/System.err(4844): at java.net.ServerSocket.bind(ServerSocket.java:414) 04-22 14:49:06.227: WARN/System.err(4844): at org.apache.harmony.nio.internal.ServerSocketChannelImpl$ServerSocketAdapter.bind(ServerSocketChannelImpl.java:213) 04-22 14:49:06.227: WARN/System.err(4844): at java.net.ServerSocket.bind(ServerSocket.java:367) 04-22 14:49:06.237: WARN/System.err(4844): at org.apache.harmony.nio.internal.ServerSocketChannelImpl$ServerSocketAdapter.bind(ServerSocketChannelImpl.java:283) 04-22 14:49:06.237: WARN/System.err(4844): at mylibrary.net.PolicyConnection$PolicyServerWorker.(PolicyConnection.java:201)
我真的希望这是一个简单的问题,不是由事实复杂化绑定发生在小于1024的端口上的工作线程内。
更新
看起来好像这是一个特权端口问题,任何人都知道如何在Android中绑定到低于1024的端口?
SelectorProvider provider = SelectorProvider.provider();
try {
ServerSocketChannel channel = provider.openServerSocketChannel();
policySocket = channel.socket();
Log.d("MyLibrary", "Address to bind: " + device.getAddress().getAddress() + " port: 843");
InetSocketAddress addr = new InetSocketAddress(InetAddress.getByName(device.getAddress().getAddress()), 843);
policySocket.bind(addr);
policySocket.setReuseAddress(true);
policySocket.setReceiveBufferSize(256);
} catch (Exception e) {
e.printStackTrace();
}
似乎不幸言:( – 2010-04-22 23:13:47
嗯...如何在扎根的环境做到这一点。我们建立我们自己的Android平台的嵌入式设备。我需要什么权限才能让android服务获得绑定到端口24的权限? – videoguy 2011-10-24 02:43:38
@videoguy:没有权限,进程必须以root用户身份运行(或者作为一个拥有管理员权限的用户帐户运行) – CommonsWare 2011-10-24 05:30:04