解决Socket通信中服务器端口冲突问题

public class SimpleServer {
public static void main(String[] args) throws IOException {
// 创建一个ServerSocket,用于监听客户端socket的连接请求
ServerSocket serverSocket = new ServerSocket(9999);
while (true) {
Socket clientSocket = serverSocket.accept();
OutputStream outputStream = clientSocket.getOutputStream();
outputStream.write("您好，您收到了服务器的新年祝福！\n".getBytes("UTF-8"));
System.out.println("消息已发送至客户端");
outputStream.close();
clientSocket.close();
}
}
}

public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Thread() {
@Override
public void run() {
try {
Socket socket = new Socket("你的IP地址", 9999);
socket.setSoTimeout(10000);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String message = bufferedReader.readLine();
System.out.println("来自服务器的数据: " + message);
bufferedReader.close();
socket.close();
} catch (UnknownHostException e) {
Log.e("UnknownHost", "无法解析主机名");
e.printStackTrace();
} catch (IOException e) {
Log.e("IOException", "I/O操作失败");
e.printStackTrace();
}
}
}.start();
}
}