android在wifi下手机与电脑的socket通信

在wifi局域网下，手机可以和电脑通过socket通信。手机做服务端，电脑做客户端；也可以反过来，电脑做服务端，手机做客户端。

下面介绍的是手机作为服务端，电脑使用MFC编程作为客户端，原理是，手机建立一个ServerSocket，并获取自己的ip地址和端口port；然后电脑通过socket连接手机的ip：port。

代码下载地址：http://download.csdn.net/detail/menghnhhuan/4050488

手机建立socketServer代码

[html] private ServerSocket serverSocket = null;
private Runnable    mcreateRunnable = new Runnable()
{
    public void run()
    {
        try {
            serverSocket = new ServerSocket(0);//系统分配端口
            getLocalIpAddress();//获得手机的ip地址
                        //方法用于等待客服连接
                        mSocketServer = serverSocket.accept();
                        //接受客服端数据BufferedReader对象
                        mBufferedReaderServer = new BufferedReader(new InputStreamReader(mSocketServer.getInputStream()));
                        //给客服端发送数据
                        mPrintWriterServer = new PrintWriter(mSocketServer.getOutputStream(),true);

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
};
private ServerSocket serverSocket = null;
private Runnable mcreateRunnable = new Runnable()
{
public void run()
{
  try {
   serverSocket = new ServerSocket(0);//系统分配端口
   getLocalIpAddress();//获得手机的ip地址
                 //方法用于等待客服连接
                 mSocketServer = serverSocket.accept();
                 //接受客服端数据BufferedReader对象
                 mBufferedReaderServer = new BufferedReader(new InputStreamReader(mSocketServer.getInputStream()));
                 //给客服端发送数据
                 mPrintWriterServer = new PrintWriter(mSocketServer.getOutputStream(),true);

  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
}
};

手机上获取的ip地址代码

[html] public String getLocalIpAddress()
{
    try {
        for (Enumeration<NetworkInte易做图ce> en=NetworkInte易做图ce.getNetworkInte易做图ces(); en.hasMoreElements();)
        {
            NetworkInte易做图ce intf = en.nextElement();
            for (Enumeration<InetAddress> enumIpAddr=intf.getInetAddresses();enumIpAddr.hasMoreElements();)
            {
                InetAddress inetAddress = enumIpAddr.nextElement();
                //if (!inetAddress.isLoopbackAddress())
                {
                    //if(inetAddress.isSiteLocalAddress())
                    {
                        String ip = "请连接IP："+inetAddress.getHostAddress()+":"
                                + serverSocket.getLocalPort()+ "\n";
                    }
                }
            }
        }
    }
    catch (SocketException ex) {
        ex.printStackTrace();   }
}
public String getLocalIpAddress()
{
try {
  for (Enumeration<NetworkInte易做图ce> en=NetworkInte易做图ce.getNetworkInte易做图ces(); en.hasMoreElements();)
  {
   NetworkInte易做图ce intf = en.nextElement();
   for (Enumeration<InetAddress> enumIpAddr=intf.getInetAddresses();enumIpAddr.hasMoreElements();)
   {
    InetAddress inetAddress = e

补充：移动开发 , Android ,