使用C++制作简单的web服务器

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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