C++|C++ 实现即时通信的示例代码(直接运行) C++实现即时通信的示例代码(直

题目
软件：VS
服务器端
客户端

题目由于本学期上了网络编程课程，老师要求写使用Socke实现网络编程。于是参考 C++多线程实现即时通信软件写出了简单版本的没有界面的即时通信软件。

软件：VS 直接上代码，需要讲解原理的，可以参考 C++多线程实现即时通信软件

服务器端

//TcpServer_plus.exe#include#include #include#pragma comment(lib,"ws2_32.lib")#includeusing namespace std; #includeSOCKADDR_IN cAddr = { 0 }; int len = sizeof cAddr; SOCKET clientSocket[1001]; //同时最多容纳1000人在线void chat(int n) { char buff[1024]; int r; while (1) {r = recv(clientSocket[n], buff, 1023, NULL); if (r > 0) {buff[r] = 0; //cout << inet_ntoa(cAddr.sin_addr) << "发来的消息: " << buff; printf("%s发来的信息：%s\n", inet_ntop(AF_INET, (void*)&cAddr.sin_addr, buff, 1023), buff); } }}int main() { //1.确定协议版本 WSADATA wsadata; WSAStartup(MAKEWORD(2, 2), &wsadata); //2.2版本 if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 2) {cout << "确认版本失败!\n" << endl; return -1; } cout << "确认版本成功!" << endl; //2.创建Socket SOCKET serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); //参数：协议类型、通信载体（字节流）、ip保护方式 if (serverSocket == SOCKET_ERROR) {cout << "创建socket失败!" << GetLastError() << endl; //9.清楚版本信息WSACleanup(); return -1; } cout << "socket创建成功！" << endl; //3.创建服务器协议地址族 //就是一个结构体 SOCKADDR_IN addr = { 0 }; addr.sin_family = AF_INET; inet_pton(AF_INET, "192.168.31.100", (void*)&addr.sin_addr.S_un.S_addr); //addr.sin_addr.S_un.S_addr = inet_addr("192.168.31.100"); //局域网地址 addr.sin_port = htons(9999); //设置端口号小端转大端 //4.绑定 int r = bind(serverSocket, (struct sockaddr*)&addr, sizeof addr); if (r == -1) {cout << "绑定失败!" << GetLastError() << endl; //8.关闭socketclosesocket(serverSocket); //9.清除版本信息WSACleanup(); return -1; } cout << "绑定成功！" << endl; //5.监听 r = listen(serverSocket, 10); if (r == -1) {cout << "监听失败!" << GetLastError() << endl; //8.关闭socketclosesocket(serverSocket); //9.清除版本信息WSACleanup(); return -1; } cout << "监听成功！" << endl; //6.等待客户端连接（多客户端连接） for (int i = 0; i < 1001; i++) {clientSocket[i] = accept(serverSocket, (sockaddr*)&cAddr, &len); //获取客户端的socketif (clientSocket[i] == SOCKET_ERROR) {cout << "客户端连接失败：" << GetLastError() << endl; //关闭socketclosesocket(serverSocket); //9.清楚版本信息WSACleanup(); return -1; }cout << "客户端连接成功！" << endl; //7 通信多线程实现 chat函数实现CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)chat, (LPVOID)i, NULL, NULL); //多线程实现 } //8.关闭socket closesocket(serverSocket); //9.清理协议版本信息 WSACleanup(); while (1); //停顿 return 0; }

【C++|C++ 实现即时通信的示例代码(直接运行)】
客户端多次点击TcpClient.exe可以产生多个窗口

//TcpClient.exe#include#include #include#pragma comment(lib,"ws2_32.lib")#includeusing namespace std; #includeint main() { //1.确定协议版本 WSADATA wsadata; WSAStartup(MAKEWORD(2, 2), &wsadata); //2.2版本 if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 2) {cout << "确认版本失败!\n" << endl; return -1; } cout << "确认版本成功!" << endl; //2.创建Socket SOCKET clientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); //参数：协议类型、通信载体（字节流）、ip保护方式 if (clientSocket == SOCKET_ERROR) {cout << "创建socket失败!" << GetLastError() << endl; //9.清楚版本信息WSACleanup(); return -1; } cout << "socket创建成功！" << endl; //3.获取服务器协议地址族 //就是一个结构体 SOCKADDR_IN addr = { 0 }; addr.sin_family = AF_INET; inet_pton(AF_INET, "192.168.31.100", (void*)&addr.sin_addr.S_un.S_addr); //addr.sin_addr.S_un.S_addr = inet_addr("192.168.31.100"); //局域网地址 addr.sin_port = htons(9999); //设置端口号小端转大端 //4.连接服务器 int r = connect(clientSocket, (sockaddr*)&addr,sizeof addr); if (r == -1) {cout << "连接服务器失败：" << GetLastError() << endl; //6.关闭socketclosesocket(clientSocket); //7 清理版本信息WSACleanup(); return -1; } cout << "服务器连接成功!" << endl; //5.通信 char buff[1024]; while (1) {cin >> buff; //用户输入信息send(clientSocket, buff, strlen(buff), NULL); //发送信息 } //6.关闭socket closesocket(clientSocket); //7.清理协议版本信息 WSACleanup(); while (1); //停顿 return 0; }

运行效果：