setColor(QPalette::WindowText, Qt::blue); ui->label_Socket_Server_Status->setPalette(pe); ui->label_Socket_Server_Status->setText("服务器未打开"); // 关联客户端连接信号newConnection connect(server, &QTcpServer::newConnection, this, &MainWindow::server_New_Connect); //创建一...
QTcpSocket* tcpSocket = tcpServer->nextPendingConnection(); connect(tcpSocket,SIGNAL(readyRead()),this,SLOT(showMeassage())); list.append(tcpSocket); ui->cb_clientList->addItem("tcpSocket"+ QString::number(i)); i++; } 如果我们需要查看是哪一个客户端发来的信息,则需要通过sender()函数进...
QObject::connect(this->server,SIGNAL(newConnection()),this,SLOT(newconnectslot())); } void myserver::newconnectslot() { this->socket=this->server->nextPendingConnection(); connect(this->socket,SIGNAL(readyRead()),this,SLOT(getData())); } void myserver::getData() { QByteArray by=this-...
客户端socket断开时发射此信号 connect(tcpSocket,SIGNAL(stateChanged(QAbstractSocket::SocketState)),...
connect(server,&QTcpServer::newConnection,[=]() { QTcpSocket* tcpSocket=server->nextPendingConnection();//接收新的客户端连接,用于实际的收发处理 //4.收发处理, //4.1 当收到数据请求时,tcpSocket会发射readyread信号 connect(tcpSocket,&QTcpSocket::readyRead,[=]() ...
client = new QTcpSocket(this); client->connectToHost(QHostAddress("10.21.11.66"), 6665); client->write(data); TCP server端 #include <QtNetwork> QTcpServer *server; QTcpSocket *clientConnection; server = new QTcpServer(); server->listen(QHostAddress::Any, 6665); ...
QUdpSocket *receiver; //信号槽 private slots: void readPendingDatagrams(); receiver = new QUdpSocket(this); receiver->bind(QHostAddress::LocalHost, 6665); connect(receiver, SIGNAL(readyRead()),this, SLOT(readPendingDatagrams()));
1):建立QTcpSocket类的对象 建立Socket的套接字: QTcpSocket* mp_clientSocket; mp_clientSocket = new QTcpSocket(); 2):连接服务端 客户端通过connectToHost(IP, Port)函数连接服务端 mp_clientSocket->connectToHost(ip, port); 1. 3):接收数据 ...
qDebug() << "connect faild !"; } while(1) { qDebug() << "___"; mp_clsTcpSocket->write("test\n"); mp_clsTcpSocket->flush(); qDebug() << "couldReadData" << couldReadData; if (true == couldReadData) { QByteArray buffer = ...
此时用socket调用connectToHost方法连接服务器并不会立即触发QTcpSocket的error信号,而是经过40s+的连接等待超时发出error信号,见下图。 回到顶部 已经连接上服务器 1、 客户端网线断开 此时socket不会发送error信号,也不会发送disconnect信号,查询资料是因为网线断开是属于物理链路层,tcp无法察觉到,socket仍处于连接状态。