Socket test project

// Server.cpp : This file contains the 'main' function. Program execution begins and ends there. // #include <winsock2.h> #include <ws2tcpip.h> #include <iostream> #pragma comment(lib, "Ws2_32.lib") #define PORT 8080 int main() { WSADATA wsaData; int iResult; // 初始化 Winsock iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); if (iResult != 0) { std::cerr << "WSAStartup failed: " << iResult << std::endl; return 1; } SOCKET serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (serverSocket == INVALID_SOCKET) { std::cerr << "Socket creation failed: " << WSAGetLastError() << std::endl; WSACleanup(); return 1; } sockaddr_in serverAddr; serverAddr.sin_family = AF_INET; serverAddr.sin_addr.s_addr = INADDR_ANY; serverAddr.sin_port = htons(PORT); // 绑定套接字 if (bind(serverSocket, (sockaddr*)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) { std::cerr << "Bind failed: " << WSAGetLastError() << std::endl; closesocket(serverSocket); WSACleanup(); return 1; } // 监听 if (listen(serverSocket, SOMAXCONN) == SOCKET_ERROR) { std::cerr << "Listen failed: " << WSAGetLastError() << std::endl; closesocket(serverSocket); WSACleanup(); return 1; } std::cout << "Waiting for a connection..." << std::endl; // 接受客户端连接 SOCKET clientSocket = accept(serverSocket, nullptr, nullptr); if (clientSocket == INVALID_SOCKET) { std::cerr << "Accept failed: " << WSAGetLastError() << std::endl; closesocket(serverSocket); WSACleanup(); return 1; } // 接收客户端消息 char buffer[1024] = { 0 }; int bytesReceived = recv(clientSocket, buffer, 1024, 0); if (bytesReceived > 0) { std::cout << "Message from client: " << buffer << std::endl; } // 发送消息给客户端 const char* hello = "Hello from server"; send(clientSocket, hello, strlen(hello), 0); // 关闭套接字 closesocket(clientSocket); closesocket(serverSocket); WSACleanup(); // 等待用户按下回车 std::cout << "Press Enter to exit..."; std::cin.get(); // 等待用户输入 return 0; }