Qt实现QTcpClient实现客户端

Qt实现QTcpClient实现客户端

//初始化对象，并定义Socket读写信号处理方法

MyTcpClient::MyTcpClient(QWidget *parent) : QMainWindow(parent) { QTcpSocket tcpClient=new QTcpSocket(); tcpClient->abort(); //取消原有连接 connect(tcpClient, &QTcpSocket::readyRead,this, &MyTcpClient::ReadData); //获取数据 void (QAbstractSocket::*p)(QAbstractSocket::SocketError) =&QAbstractSocket::error; //函数指针 connect(tcpClient, p, this, &MyTcpClient::ReadError); //检测异常

}

//连接server void MyTcpClient::connectServer() { tcpClient->connectToHost(“192.168.170.1”, 8951); if(tcpClient->waitForConnected(1000)) { qDebug()<<“connect success”; } else { qDebug()<<“connect fail”; }

}

//断开连接

void MyTcpClient::disconnect() { tcpClient->disconnectFromHost(); qDebug()<<“disconnect”; }

//发送数据

void MyTcpClient::sendData() { QString data=”Hello World\n”; tcpClient->write(data.toLatin1()); }

//接受数据

void MyTcpClient::ReadData() { QByteArray buffer=tcpClient->readAll(); if(!buffer.isEmpty()) { qDebug()<<buffer; } }

//接受异常

void MyTcpClient::ReadError(QAbstractSocket::SocketError e) { tcpClient->disconnectFromHost(); qDebug()<<“socket error: “<<e; qDebug()<<tcpClient->errorString(); }

原文链接：https://blog.csdn.net/quietbxj/article/details/106575812