VS2017实现Tcp socket通信（C++）

#include "winsock2.h" #include "stdio.h" #include "time.h" #include <iostream> #include <Ws2tcpip.h> #include "stdafx.h" #define MAX_BUFFER 1024 #define SERVER_PORT 5060 using namespace std; int main(int argc, char* argv[]) { SOCKET serverFd; int connectionFd, i = 1; struct sockaddr_in servaddr; int in = 0; char sendbuffer[MAX_BUFFER + 1]; char recvbuffer[MAX_BUFFER + 1]; WSADATA wsaData; if (WSAStartup(MAKEWORD(2, 2), &wsaData) == SOCKET_ERROR) { printf("Winsock error\n"); return -1; } serverFd = socket(AF_INET, SOCK_STREAM, 0); if (serverFd == -1) { printf("socket error!\n"); WSACleanup(); return -1; } memset(&servaddr, 0, sizeof(servaddr)); servaddr.sin_family = AF_INET; servaddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY); servaddr.sin_port = htons(SERVER_PORT); bind(serverFd, (struct sockaddr *)&servaddr, sizeof(servaddr)); listen(serverFd, 5); while (1) { connectionFd = accept(serverFd, (struct sockaddr *)NULL, NULL); if (connectionFd >= 0) { send(connectionFd, "HELLO", strlen("HELLO"), 0); cout << "send success！" << endl; } if ((in = recv(connectionFd, recvbuffer, MAX_BUFFER, 0)) > 0) { recvbuffer[in] = 0; cout << "recv from client：" << recvbuffer << endl; } } closesocket(connectionFd); closesocket(serverFd); WSACleanup(); return 0; }