win7下。C++实现多人聊天室上

来源：互联网发布：软件架构师薪水编辑：程序博客网时间：2024/05/22 08:04

.这个是服务端。

#define _WINSOCK_DEPRECATED_NO_WARNINGS #define  _CRT_SECURE_NO_WARNINGS#ifndef _H_H_#define _H_H_#include <thread>#include <iostream>#include <string>#include <WinSock2.h>#include <stdlib.h>#pragma  comment(lib,"ws2_32.lib")using namespace std;static struct MyStruct{SOCKET sock;int empt;}soc[4];class Server{ public:Server();~Server();static void talk(int id);private:SOCKET s;};#endif // _H_H_

#include "h.h"Server::Server(){WSADATA wsadata;WORD v = MAKEWORD(2, 2);if (::WSAStartup(v, &wsadata) < 0)exit(0);s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);sockaddr_in sin;sin.sin_family = AF_INET;sin.sin_port = htons(4567);sin.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");if (::bind(s, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)return;if (::listen(s, 5) == SOCKET_ERROR)return;cout << "The server has been started " << endl;while (1){int i;for ( i = 0; i < 4; i++){if (soc[i].empt==0){soc[i].empt = 1;break;}}sockaddr_in re;int n = sizeof(re);soc[i].sock = ::accept(s, (SOCKADDR*)&re, &n);if (soc[i].sock==INVALID_SOCKET){return;}std::thread t(talk, i);t.detach();}closesocket(s);}Server::~Server(){::WSACleanup();}void Server::talk(int id){char hello[] = "Welcome";::send(soc[id].sock, hello, 7, 0);while (true){char buff[255];int nR = ::recv(soc[id].sock, buff, 256, 0);if (nR>0){buff[nR] = '\0';char buf[300];           _itoa(id, buf, 10);   strcat(buf, buff);for (int i = 0; i < 4; i++){if (soc[i].empt){::send(soc[i].sock, buf, strlen(buf), 0);}}}else{closesocket(soc[id].sock);soc[id].empt = 0;return;}}}

#include "h.h"int main(){Server server;return 0;}

想法是接收数据。收到以后。把信息发给所有连接在线的人。

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