一个简单的Socket网络编程程序

转载自 https://www.bilibili.com/video/BV1ms41137De?spm_id_from=pageDriver

感谢up主的分享

//服务端

#include <stdio.h>
#include <stdlib.h>
#include <WinSock2.h>//Windows Socket编程头文件
#include <iostream>
#include <WS2tcpip.h>
#include <cstring>

#pragma comment(lib, "ws2_32.lib")//链接ws2_32.lib库文件到此项目中
using namespace std;

//全局常量
const int BUF_SIZE = 2048;



//全局变量
SOCKET sockSer, sockCli;
SOCKADDR_IN addrSer, addrCli;//address
int naddr = sizeof(SOCKADDR_IN);

char sendbuf[BUF_SIZE];
char inputbuf[BUF_SIZE];
char recvbuf[BUF_SIZE];


int main()
{
    //加载socket库
    WSADATA wsadata;
    if (WSAStartup(MAKEWORD(2,2), &wsadata) != 0)
    {
        //输出出错信息
        cout << "载入socket库失败" << endl;
        system("pause");
        return 0;
    }

    //创建Socket
    sockSer = socket(AF_INET, SOCK_STREAM, 0);

    //初始化地址包
    addrSer.sin_addr.s_addr = inet_addr("192.168.0.1");//ip地址
    addrSer.sin_family = AF_INET;
    addrSer.sin_port = htons(12248);//端口号

    //绑定Socket和本地地址
    bind(sockSer, (SOCKADDR*)&addrSer, sizeof(SOCKADDR));

    while (1)
    {
        //监听连接请求
        listen(sockSer, 5);
        //接受连接请求
        sockCli = accept(sockSer, (SOCKADDR*)&addrCli, &naddr);
        if (sockCli != INVALID_SOCKET)//客户端套接口,连接成功
        {
            cout << "连接成功！" << endl;
            strcpy(sendbuf, "hello!");
            send(sockCli, sendbuf, sizeof(sendbuf), 0);
        }
    }

    //关闭套接字
    closesocket(sockSer);
    closesocket(sockCli);
    WSACleanup();

    return 0;
}

//客户端

#include <stdio.h>
#include <stdlib.h>
#include <WinSock2.h>//Windows Socket编程头文件
#include <iostream>
#include <WS2tcpip.h>
#include <cstring>

#pragma comment(lib, "ws2_32.lib")//链接ws2_32.lib库文件到此项目中
using namespace std;

//全局常量
const int BUF_SIZE = 2048;



//全局变量
SOCKET sockSer, sockCli;
SOCKADDR_IN addrSer, addrCli;//address
int naddr = sizeof(SOCKADDR_IN);

char sendbuf[BUF_SIZE];
char inputbuf[BUF_SIZE];
char recvbuf[BUF_SIZE];

int main()
{
    //加载socket库
    WSADATA wsadata;
    if (WSAStartup(MAKEWORD(2, 2), &wsadata) != 0)
    {
        //输出出错信息
        cout << "载入socket库失败" << endl;
        system("pause");
        return 0;
    }

    //创建Socket
    sockCli = socket(AF_INET, SOCK_STREAM, 0);

    //初始化客户端地址包
    addrCli.sin_addr.s_addr = inet_addr("129.0.0.1");//ip地址
    addrCli.sin_family = AF_INET;
    addrCli.sin_port = htons(12248);//端口号

    //初始化服务器地址
    addrSer.sin_addr.s_addr = inet_addr("192.168.0.1");//ip地址
    addrSer.sin_family = AF_INET;
    addrSer.sin_port = htons(12248);//端口号

    while (1)
    {
        if (connect(sockCli, (SOCKADDR*)&addrSer,sizeof(addrSer)) != SOCKET_ERROR)
        {
            recv(sockCli, recvbuf, sizeof(recvbuf), 0);
            cout << recvbuf << endl;
        }
    }

    //关闭套接字
    closesocket(sockSer);
    closesocket(sockCli);
    WSACleanup();

    return 0;
}

问题记录 https://blog.csdn.net/weixin_42731241/article/details/96143934

Caesar卢尚宇

2021年2月16日