prism 写一个通信模块

好的，这里我给您提供一个简单的通信模块的实现，使用了 Java 语言和 Socket 编程。

1. 服务端代码：

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

public class Server {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = null;

        try {
            // 创建 ServerSocket 对象并绑定端口号
            serverSocket = new ServerSocket(8888);
        } catch (IOException e) {
            System.err.println("Could not listen on port: 8888.");
            System.exit(-1);
        }

        Socket clientSocket = null;
        System.out.println("等待客户端连接...");
        try {
            // 等待客户端连接
            clientSocket = serverSocket.accept();
        } catch (IOException e) {
            System.err.println("Accept failed.");
            System.exit(-1);
        }
        System.out.println("客户端已连接！");

        // 获取输入流和输出流
        PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
        BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));

        // 读取客户端发送的消息并回复
        String inputLine;
        while ((inputLine = in.readLine()) != null) {
            System.out.println("客户端: " + inputLine);
            out.println("服务端已接收到消息: " + inputLine);
            if (inputLine.equals("exit"))
                break;
        }

        out.close();
        in.close();
        clientSocket.close();
        serverSocket.close();
    }
}

2. 客户端代码：

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

public class Client {
    public static void main(String[] args) throws IOException {
        Socket socket = null;
        PrintWriter out = null;
        BufferedReader in = null;

        try {
            // 创建 Socket 对象并连接服务器
            socket = new Socket("localhost", 8888);
            out = new PrintWriter(socket.getOutputStream(), true);
            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Don't know about host: localhost.");
            System.exit(1);
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for the connection to: localhost.");
            System.exit(1);
        }

        BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
        String userInput;

        // 发送消息到服务器并读取回复
        while ((userInput = stdIn.readLine()) != null) {
            out.println(userInput);
            System.out.println("服务端: " + in.readLine());
            if (userInput.equals("exit"))
                break;
        }

        out.close();
        in.close();
        stdIn.close();
        socket.close();
    }
}

这个通信模块的实现比较简单，它只能在本地运行，并且没有进行错误处理和安全性考虑。但是，它可以作为一个基础的 Socket 编程示例，帮助您更好地理解通信模块的工作原理。