使用C++制作简单的web服务器

前端技术 2023/09/02 C++

仅仅实现了web的功能，局限性比较大，由于只是想要理解web服务器的原理，所以地址和端口是固定的，也不支持多线程，每次访问的页面也是一致的，后面自己会慢慢改进这些

//@ProjectName      ZYhttpd
//@Description      my http server
//@Author           NicoleRobin
//@Date             2015/02/09
//*****************************************************************************
#include <cstdio>
#include <WinSock2.h>
using namespace std;
#define BUFFER_SIZE 1024
#define HOST \"127.0.0.1\"
#define PORT 81
#define HEADER \"\\
HTTP/1.1 200 OK\\r\\n\\
Content-Type: text/html; charset=UTF-8\\r\\n\\
Server: ZYhttp_v1.0.1\\r\\n\\
Content-Length: %d\\r\\n\\r\\n%s\\
\"
#define HTML \"\\
<html>\\
    <head>\\
        <title>ZYhttp</title>\\
    <head>\\
    <body>\\
        <h1>Hello ZYhttp!</h1>\\
    </body>\\
</html>\\
\"
#pragma comment(lib, \"WS2_32\")
int main(int argc, char **argv)
{
    // define and init an server sockaddr
    sockaddr_in addrServer;
    addrServer.sin_family = AF_INET;
    addrServer.sin_addr.S_un.S_addr = INADDR_ANY;
    addrServer.sin_port = htons(PORT);
    // init socket dll
    WSADATA wsaData;
    WORD socketVersion = MAKEWORD(2, 0);
    if (WSAStartup(socketVersion, &wsaData) != 0)
    {
        printf(\"Init socket dll error!\");
        exit(1);
    }
    // create socket
    SOCKET socketServer = socket(AF_INET, SOCK_STREAM, 0);
    if (SOCKET_ERROR == socketServer)
    {
        printf(\"Create socket error!\");
        exit(1);
    }
    // bind server socket host
    if (SOCKET_ERROR == bind(socketServer, (LPSOCKADDR)&addrServer, sizeof(addrServer)))
    {
        printf(\"Bind server host failed!\");
        exit(1);
    }
    // listen
    if (SOCKET_ERROR == listen(socketServer, 10))
    {
        printf(\"Listen failed!\");
        exit(1);
    }
    while (true)
    {
        printf(\"Listening ... \\n\");
        sockaddr_in addrClient;
        int nClientAddrLen = sizeof(addrClient);
        SOCKET socketClient = accept(socketServer, (sockaddr*)&addrClient, &nClientAddrLen);
        if (SOCKET_ERROR == socketClient)
        {
            printf(\"Accept failed!\");
            break;
        }
        char buffer[BUFFER_SIZE];
        memset(buffer, 0, BUFFER_SIZE);
        if (recv(socketClient, buffer, BUFFER_SIZE, 0) < 0)
        {
            printf(\"Recvive data failed!\");
            break;
        }
        printf(\"Recv data : \\n%s\", buffer);
        // response
        memset(buffer, 0, BUFFER_SIZE);
        sprintf_s(buffer, HEADER, strlen(HTML), HTML);
        if (send(socketClient, buffer, strlen(buffer), 0) < 0)
        {
            printf(\"Send data failed!\");
            break;
        }
        printf(\"Send data : \\n%s\", buffer);
        closesocket(socketClient);
    }
    closesocket(socketServer);
    WSACleanup();
    return 0;
}

演示图

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