上海网站搜索排名优化哪家好,重庆商城网站建设,seo网络优化招聘信息,菲律宾菠菜网站开发C TCP 服务端和客户端通信的例子
在此基础上#xff0c;要修改服务端代码#xff0c;使其能够每秒向客户端发送当前时间#xff0c;你需要添加一个循环#xff0c;每次循环发送当前时间给客户端。同时#xff0c;你需要在客户端代码中添加接收服务端发送的数据的逻辑。
…C TCP 服务端和客户端通信的例子
在此基础上要修改服务端代码使其能够每秒向客户端发送当前时间你需要添加一个循环每次循环发送当前时间给客户端。同时你需要在客户端代码中添加接收服务端发送的数据的逻辑。
以下是修改后的代码
服务端代码
#include iostream
#include winsock2.h
#include Ws2tcpip.h // for inet_ntop
#include ctime // for time and localtime_s#pragma comment(lib, Ws2_32.lib)#define PORT 8080int main() {WSADATA wsaData;SOCKET serverSocket, newSocket;struct sockaddr_in serverAddr, clientAddr;int clientAddrLen sizeof(clientAddr);char buffer[1024] { 0 };const char* message Hello from server;// 初始化 Winsockif (WSAStartup(MAKEWORD(2, 2), wsaData) ! 0) {std::cerr WSAStartup failed. std::endl;return 1;}// 创建服务器套接字if ((serverSocket socket(AF_INET, SOCK_STREAM, 0)) INVALID_SOCKET) {std::cerr Socket creation failed. std::endl;WSACleanup();return 1;}// 设置服务器地址serverAddr.sin_family AF_INET;serverAddr.sin_addr.s_addr INADDR_ANY;serverAddr.sin_port htons(PORT);// 将套接字绑定到服务器地址if (bind(serverSocket, (struct sockaddr*)serverAddr, sizeof(serverAddr)) SOCKET_ERROR) {std::cerr Bind failed. std::endl;closesocket(serverSocket);WSACleanup();return 1;}// 监听连接if (listen(serverSocket, 5) SOCKET_ERROR) {std::cerr Listen failed. std::endl;closesocket(serverSocket);WSACleanup();return 1;}std::cout Server listening on port PORT std::endl;// 接受客户端连接if ((newSocket accept(serverSocket, (struct sockaddr*)clientAddr, clientAddrLen)) INVALID_SOCKET) {std::cerr Accept failed. std::endl;closesocket(serverSocket);WSACleanup();return 1;}// Convert client IP address to stringchar clientIP[INET_ADDRSTRLEN];inet_ntop(AF_INET, clientAddr.sin_addr, clientIP, INET_ADDRSTRLEN);std::cout Connection accepted from clientIP : ntohs(clientAddr.sin_port) std::endl;// 每秒向客户端发送当前时间while (true) {// 获取当前时间time_t currentTime time(nullptr);struct tm localTime;localtime_s(localTime, currentTime);std::string timeString asctime(localTime);// 发送当前时间给客户端if (send(newSocket, timeString.c_str(), timeString.size(), 0) SOCKET_ERROR) {std::cerr Send failed. std::endl;closesocket(newSocket);closesocket(serverSocket);WSACleanup();return 1;}std::cout Message sent to client: timeString;Sleep(1000); // 等待1秒钟}// 关闭套接字closesocket(newSocket);closesocket(serverSocket);WSACleanup();return 0;
}客户端代码
#include iostream
#include winsock2.h
#include Ws2tcpip.h // for inet_pton#pragma comment(lib, Ws2_32.lib)#define PORT 8080
#define SERVER_IP 127.0.0.1int main() {WSADATA wsaData;SOCKET clientSocket;struct sockaddr_in serverAddr;char buffer[1024] { 0 };// 初始化 Winsockif (WSAStartup(MAKEWORD(2, 2), wsaData) ! 0) {std::cerr WSAStartup failed. std::endl;return 1;}// 创建客户端套接字if ((clientSocket socket(AF_INET, SOCK_STREAM, 0)) INVALID_SOCKET) {std::cerr Socket creation failed. std::endl;WSACleanup();return 1;}// 设置服务器地址serverAddr.sin_family AF_INET;inet_pton(AF_INET, SERVER_IP, (serverAddr.sin_addr));serverAddr.sin_port htons(PORT);// 连接到服务器if (connect(clientSocket, (struct sockaddr*)serverAddr, sizeof(serverAddr)) SOCKET_ERROR) {std::cerr Connect failed. std::endl;closesocket(clientSocket);WSACleanup();return 1;}std::cout Connected to server. std::endl;// 接收来自服务器的消息int valread;while ((valread recv(clientSocket, buffer, sizeof(buffer), 0)) 0) {std::cout Message from server: buffer std::endl;memset(buffer, 0, sizeof(buffer)); // 清空缓冲区}if (valread 0) {std::cout Server disconnected. std::endl;} else {std::cerr Recv failed. std::endl;}// 关闭套接字closesocket(clientSocket);WSACleanup();return 0;
}这样修改后服务端每秒钟向客户端发送当前时间而客户端接收并打印出来。
