给一个使用Java或者C++编写WITSML通讯，server端的例子。

以下是一个使用Java编写WITSML通讯server端的例子：

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

public class WitsmlServer {
    public static void main (String[] args) {
        ServerSocket serverSocket = null;
        boolean listening = true;

        try {
            serverSocket = new ServerSocket(9000); // 监听9000端口
        } catch (IOException e) {
            System.err.println("Could not listen on port: 9000.");
            System.exit(-1);
        }

        System.out.println("Witsml server started on port 9000.");

        while (listening) {
            try {
                new WitsmlServerThread(serverSocket.accept()).start(); // 接收客户端连接
            } catch (IOException e) {
                System.err.println("Accept failed.");
                System.exit(-1);
            }
        }

        try {
            serverSocket.close(); // 关闭服务器连接
        } catch (IOException e) {
            System.err.println("Could not close port: 9000.");
            System.exit(-1);
        }
    }
}

class WitsmlServerThread extends Thread {
    private Socket socket = null;

    public WitsmlServerThread(Socket socket) {
        super("WitsmlServerThread");
        this.socket = socket;
    }

    public void run() {
        try {
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

            String inputLine, outputLine;
            while ((inputLine = in.readLine()) != null) {
                System.out.println("Received message: " + inputLine);

                // 在这里处理WITSML协议通讯

                out.println(outputLine);

                if (outputLine.equals("bye")) {
                    break;
                }
            }

            out.close();
            in.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

以上是一个简单的WITSML server端的Java示例。在实际应用中需要根据具体的需求进行修改。

以下是一个使用C++编写WITSML通讯server端的例子：

#include <iostream>
#include <string.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>

using namespace std;

#define PORT 9000

int main() {
    int server_fd, new_socket, valread;
    struct sockaddr_in address;
    int opt = 1;
    int addrlen = sizeof(address);
    char buffer[1024] = {0};
    char* hello = "Hello from server";

    // 创建socket
    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
        perror("socket failed");
        exit(EXIT_FAILURE);
    }

    // 设置socket选项
    if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
        perror("setsockopt");
        exit(EXIT_FAILURE);
    }

    address.sin_family = AF_INET;
    address.sin_addr.s_addr = INADDR_ANY;
    address.sin_port = htons(PORT);

    // 绑定socket到指定的端口
    if (bind(server_fd, (struct sockaddr*)&address, sizeof(address)) < 0) {
        perror("bind failed");
        exit(EXIT_FAILURE);
    }

    // 监听socket
    if (listen(server_fd, 3) < 0) {
        perror("listen");
        exit(EXIT_FAILURE);
    }

    cout << "Witsml server started on port " << PORT << "." << endl;

    while (true) {
        // 接收客户端连接
        if ((new_socket = accept(server_fd, (struct sockaddr*)&address, (socklen_t*)&addrlen)) < 0) {
            perror("accept");
            exit(EXIT_FAILURE);
        }

        valread = read(new_socket, buffer, 1024);
        printf("Received message: %s\n", buffer);

        // 在这里处理WITSML协议通讯

        send(new_socket, hello, strlen(hello), 0);
        printf("Hello message sent\n");

        // 关闭连接
        close(new_socket);
    }

    return 0;
}

以上是一个简单的WITSML server端的C++示例。在实际应用中需要根据具体的需求进行修改。