在java中通过wifi将数据从笔记本电脑传输到Android手机。

import java.io.*;
import java.net.*;

public class Server {
    public static void main(String[] args) {
        try {
            // 创建ServerSocket对象，并绑定端口
            ServerSocket serverSocket = new ServerSocket(8888);
            
            // 监听连接请求
            Socket socket = serverSocket.accept();
            
            // 获取输入流，用于接收数据
            InputStream inputStream = socket.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            
            // 读取数据
            String data = reader.readLine();
            System.out.println("Received data: " + data);
            
            // 关闭连接
            socket.close();
            serverSocket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.*;
import java.net.*;

public class Client {
    public static void main(String[] args) {
        try {
            // 创建Socket对象，并指定服务器的IP地址和端口
            Socket socket = new Socket("服务器IP地址", 8888);
            
            // 获取输出流，用于发送数据
            OutputStream outputStream = socket.getOutputStream();
            PrintWriter writer = new PrintWriter(outputStream);
            
            // 发送数据
            writer.println("Hello, server!");
            writer.flush();
            
            // 关闭连接
            writer.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}