windows_tcp简单代码

文章内容：
一个简单的显示windows平台下c++tcp的代码

客户端代码已上传
服务器代码未验证
方便自己日后使用

客户端：
#if _MSC_VER >=1600 //VS2010版本号是1600#pragma execution_character_set("utf-8")
#endif
#include "mynetdump.h"using namespace std;MyNetDump::MyNetDump(QObject *parent): QThread(parent)
{}MyNetDump::~MyNetDump()
{closesocket(clientSocket);WSACleanup();this->wait();
}void MyNetDump::InitWincap(QString IP, int port, int ui_count)
{m_count = ui_count;WSADATA wsaData;if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0){qDebug() << "Failed to initialize winsock";return;}clientSocket = socket(AF_INET, SOCK_STREAM, 0);if (clientSocket == INVALID_SOCKET){qDebug() << "Failed to create socket";return;}serverAddress.sin_family = AF_INET;serverAddress.sin_port = htons(port);serverAddress.sin_addr.s_addr = inet_addr(IP.toStdString().c_str());// // 设置连接超时时间// int timeout = 5000; // 5秒// setsockopt(clientSocket, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout));// setsockopt(clientSocket, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(timeout));if (::connect(clientSocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress)) == SOCKET_ERROR){qDebug() << "Failed to connect to server";return;}this->start();
}void MyNetDump::run()
{while(isRunning()){char buffer[4096];memset(buffer, 0, sizeof(buffer));int len = recv(clientSocket, buffer, sizeof(buffer), 0);if (len == SOCKET_ERROR){qDebug() << "Failed to receive data from server";return;}QString str = QString(QLatin1String(buffer));emit sigRecvMsg(str, m_count);msleep(5);}
}

服务器代码
#include <iostream>
#include <winsock2.h>#pragma comment(lib, "ws2_32.lib")int main() {WSADATA wsaData;if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {std::cout << "Failed to initialize winsock" << std::endl;return -1;}SOCKET serverSocket = socket(AF_INET, SOCK_STREAM, 0);if (serverSocket == INVALID_SOCKET) {std::cout << "Failed to create socket" << std::endl;return -1;}sockaddr_in serverAddress;serverAddress.sin_family = AF_INET;serverAddress.sin_port = htons(8080);serverAddress.sin_addr.s_addr = INADDR_ANY;if (bind(serverSocket, (struct sockaddr*)&serverAddress, sizeof(serverAddress)) == SOCKET_ERROR) {std::cout << "Failed to bind socket" << std::endl;return -1;}if (listen(serverSocket, SOMAXCONN) == SOCKET_ERROR) {std::cout << "Failed to listen on socket" << std::endl;return -1;}std::cout << "Waiting for incoming connections..." << std::endl;SOCKET clientSocket;sockaddr_in clientAddress;int clientAddressSize = sizeof(clientAddress);while ((clientSocket = accept(serverSocket, (struct sockaddr*)&clientAddress, &clientAddressSize)) != INVALID_SOCKET) {std::cout << "Client connected" << std::endl;char buffer[4096];memset(buffer, 0, sizeof(buffer));if (recv(clientSocket, buffer, sizeof(buffer), 0) == SOCKET_ERROR) {std::cout << "Failed to receive data from client" << std::endl;break;}std::cout << "Received data from client: " << buffer << std::endl;const char* response = "Hello from server!";if (send(clientSocket, response, strlen(response), 0) == SOCKET_ERROR) {std::cout << "Failed to send data to client" << std::endl;break;}closesocket(clientSocket);std::cout << "Client disconnected" << std::endl;}closesocket(serverSocket);WSACleanup();return 0;
}