利用Socket或TcpClient/TcpListener，编写一个HTTP服务器c++

好的，我可以为您提供一个简单的示例，使用C++语言利用Socket实现一个HTTP服务器：

#include <iostream>
#include <string>
#include <WS2tcpip.h>
#pragma comment (lib, "ws2_32.lib")

int main()
{
    // 初始化Winsock
    WSADATA data;
    WORD version = MAKEWORD(2, 2);
    int wsOk = WSAStartup(version, &data);
    if (wsOk != 0)
    {
        std::cerr << "Can't initialize Winsock! Quitting" << std::endl;
        return 1;
    }

    // 创建Socket
    SOCKET listening = socket(AF_INET, SOCK_STREAM, 0);
    if (listening == INVALID_SOCKET)
    {
        std::cerr << "Can't create a socket! Quitting" << std::endl;
        return 1;
    }

    // 绑定Socket到IP地址和端口
    sockaddr_in hint;
    hint.sin_family = AF_INET;
    hint.sin_port = htons(8080);
    hint.sin_addr.S_un.S_addr = INADDR_ANY;

    bind(listening, (sockaddr*)&hint, sizeof(hint));

    // 告诉Winsock这是一个监听Socket
    listen(listening, SOMAXCONN);

    // 等待连接
    sockaddr_in client;
    int clientSize = sizeof(client);

    SOCKET clientSocket = accept(listening, (sockaddr*)&client, &clientSize);

    char host[NI_MAXHOST];      // 远程名称
    char service[NI_MAXSERV];   // 远程端口

    ZeroMemory(host, NI_MAXHOST);     // 确保缓存区为空
    ZeroMemory(service, NI_MAXSERV);

    if (getnameinfo((sockaddr*)&client, sizeof(client), host, NI_MAXHOST, service, NI_MAXSERV, 0) == 0)
    {
        std::cout << host << " connected on port " << service << std::endl;
    }
    else
    {
        inet_ntop(AF_INET, &client.sin_addr, host, NI_MAXHOST);
        std::cout << host << " connected on port " << ntohs(client.sin_port) << std::endl;
    }

    // 关闭监听Socket
    closesocket(listening);

    // 循环接收和发送数据
    char buf[4096];

    while (true)
    {
        ZeroMemory(buf, 4096);

        // 等待客户端发送数据
        int bytesReceived = recv(clientSocket, buf, 4096, 0);
        if (bytesReceived == SOCKET_ERROR)
        {
            std::cerr << "Error in recv(). Quitting" << std::endl;
            break;
        }

        if (bytesReceived == 0)
        {
            std::cout << "Client disconnected" << std::endl;
            break;
        }

        // 处理请求
        std::string response = "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nContent-Length: 12\r\n\r\nHello world!";
        send(clientSocket, response.c_str(), response.size() + 1, 0);
    }

    // 关闭Socket
    closesocket(clientSocket);

    // 清理Winsock
    WSACleanup();

    return 0;
}

这是一个简单的HTTP服务器示例，它监听在本地8080端口，收到请求后会返回“Hello world!”。您可以根据自己的需求进行修改和扩展。