Android连接到tethering socket

Question

我有2个Android设备,一个充当处于网络共享模式的服务器,并接受与端口的连接.另一个设备充当连接到服务器热点的客户端,并通过端口建立与服务器的连接.(一切都是在中间没有路由器的情况下完成的).

服务器代码如下所示:(当android服务器执行代码时,设备处于网络共享模式)

ServerSocket server = new ServerSocket(PORT);

while (true) {
    Socket client;
    client = server.accept();
    ClientThread com = new ClientThread(client, this);
    Thread t = new Thread(com);
    t.start();
}

客户端代码如下所示:(当android客户端执行此代码时,设备连接到访问点)

Socket client = new Socket();
int serverIP = wifiManager.getDhcpInfo().serverAddress;
String stringIP = android.text.format.Formatter.formatIpAddress(serverIP);
InetAddress address = InetAddress.getByName(stringIP);
SocketAddress socketAddress = new InetSocketAddress(address, PORT);
client.connect(socketAddress);

我在客户端上收到以下错误

java.net.ConnectException: failed to connect to /192.168.43.1 (port 12345): connect failed: ENETUNREACH (Network is unreachable)
  at libcore.io.IoBridge.connect(IoBridge.java:114)
  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
  at java.net.Socket.connect(Socket.java:842)
  at java.net.Socket.connect(Socket.java:785)
  at com.alternatewifimeshmessaging.HostManager.clientConnect(HostManager.java:283)
  at com.alternatewifimeshmessaging.HostManager.client(HostManager.java:189)
  at com.alternatewifimeshmessaging.HostManager.run(HostManager.java:59)
  at java.lang.Thread.run(Thread.java:856)
Caused by: libcore.io.ErrnoException: connect failed: ENETUNREACH (Network is unreachable)
  at libcore.io.Posix.connect(Native Method)
  at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
  at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
  at libcore.io.IoBridge.connect(IoBridge.java:112)
... 8 more

服务器没有错误.

我在android清单文件中设置了以下权限:

<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >
</uses-permission>

理想情况下,我需要将一些数据从服务器传输到客户端.

我究竟做错了什么？

Answer 1

通过测试证明,无法在网络共享设备上建立连接.

但是,如果我们反转该过程并在连接的客户端上打开serversocket.并从绑定设备连接到它,它将工作.

所以扭转沟通就是答案.