#include<iostream>
#include<Windows.h>
using namespace std;int main()
{//初始化ws2_32.dllWORD ver = MAKEWORD(2, 2);WSADATA wsaData;WSAStartup(ver, &wsaData);//对应WSACleanup的调用//1.建立一个socketSOCKET _sock = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);if (_sock == INVALID_SOCKET){cout<<"创建socket失败" << endl;WSACleanup();return 0;}else{cout << "创建socket成功" << endl;}//填充sockaddr_in结构sockaddr_in sin;sin.sin_family = AF_INET;sin.sin_port = htons(1234);sin.sin_addr.S_un.S_addr = INADDR_ANY;//2.绑定端口if (bind(_sock, (sockaddr*)&sin, sizeof(sin)) == SOCKET_ERROR){cout << "绑定端口失败" << endl;WSACleanup();return 0;}else{cout << "绑定端口成功" << endl;}//3.Listen监听网络端口if (listen(_sock, 10) == SOCKET_ERROR){cout << "监听端口失败" << endl;WSACleanup();return 0;}else{cout << "监听端口成功" << endl;}//4.accept等待客户端连接sockaddr_in clientAddr;int nAddrLen= sizeof(clientAddr);SOCKET client;client = accept(_sock, (sockaddr*)&clientAddr, &nAddrLen);if (client == INVALID_SOCKET){cout << "接受到无效客户端" << endl;WSACleanup();return 0;}else{cout << "接受客户端连接成功" << endl;}cout << "新客户端连接IP： " << inet_ntoa(clientAddr.sin_addr) << endl;char Hc[128] = {};while (true){//5.接受客户端请求数据int nVen=recv(client, Hc,128,0);if (nVen <= 0){cout << "客户端已退出,任务结束" << endl;break;}else{cout << "接受到来自客户端的请求:  " << Hc << endl;}//6.处理客户端发来的命令if (0 == strcmp(Hc, "getname"))  //用strcmp函数对比发送来的命令{char Name[] = "诸葛亮";//7.send向客户端发送一条数据send(client, Name, strlen(Name) + 1, 0);}else if (0 == strcmp(Hc, "getage")){char Age[] = "50";send(client, Age, strlen(Age) + 1, 0);}else{char Yichang[] = "未找到该命令，请重新输入命令请求";send(client, Yichang, strlen(Yichang) + 1, 0);}}//6.关闭套接字closesocketclosesocket(client);closesocket(_sock);//清楚windows socket环境WSACleanup();cout << "已退出" << endl;system("pause");return 0;
}