windowsC++创建一个server端的类，ip为127.0.0.1，端口7799。这个server端用于接收client的信息,写成.h和.cpp的格式

在Windows上使用C++创建一个服务器端程序，通常会涉及套接字编程。首先，你需要包含必要的头文件，并定义一个Server类。这里是一个简单的.h和.cpp文件示例：

**Server.h**

#pragma once
#include <winsock2.h>
#include <ws2tcpip.h>
#include <iostream>
#include <string>

class Server {
public:
    Server(std::string ipAddress, int port);
    void start();
private:
    sockaddr_in serverAddr;
    SOCKET serverSocket;
};

**Server.cpp**

#include "Server.h"
#include <cstring>
#include <thread>
#include <vector>

Server::Server(const std::string& ipAddress, int port) {
    WSADATA wsaData;
    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
        throw std::runtime_error("Failed to initialize Winsock");
    }

    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(port);
    inet_pton(AF_INET, ipAddress.c_str(), &serverAddr.sin_addr);

    if ((serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET) {
        closesocket(serverSocket);
        WSACleanup();
        throw std::runtime_error("Failed to create a socket");
    }

    if (bind(serverSocket, reinterpret_cast<SOCKADDR*>(&serverAddr), sizeof(serverAddr)) != 0) {
        closesocket(serverSocket);
        WSACleanup();
        throw std::runtime_error("Failed to bind to the address");
    }

    listen(serverSocket, SOMAXCONN); // Max connections
}

void Server::start() {
    std::cout << "Server started on " << inet_ntoa(serverAddr.sin_addr) << ":" << ntohs(serverAddr.sin_port) << std::endl;

    while (true) {
        sockaddr_in clientAddr;
        socklen_t addrSize = sizeof(clientAddr);
        SOCKET clientSocket = accept(serverSocket, (struct sockaddr*)&clientAddr, &addrSize);

        if (clientSocket == INVALID_SOCKET) {
            perror("accept failed");
            continue;
        }

        std::thread handler([this, clientSocket] {
            char buffer[1024];
            DWORD bytesRead = recv(clientSocket, buffer, sizeof(buffer), 0);
            if (bytesRead > 0) {
                std::cout << "Received from client: " << buffer << std::endl;
            }
            closesocket(clientSocket);
        });

        handler.detach(); // Detach thread for efficient handling
    }
}

// 示例如何创建并启动服务器
int main() {
    try {
        Server server("127.0.0.1", 7799);
        server.start();
    } catch (const std::exception& e) {
        std::cerr << "Error: " << e.what() << std::endl;
    }

    return 0;
}

在这个例子中，`Server`类包含了创建socket、绑定到指定地址、监听连接以及处理客户端请求的功能。当你运行`main`函数时，它会启动一个服务器。