qt tcp udp 工具示例代码

#include "tcp_server_win.h" #include <qplaintextedit.h> #include <QTextEdit> #include <QLineEdit> #include <qcheckbox.h> #include <qpushbutton.h> #include <QLayout> #include <QComboBox> #include <QCheckBox> #include <QLabel> #include <QTimer> // 定时器刷新时间 #define TIME_UPDATE 1000 CTcpServerWin::CTcpServerWin(CTcpServer* tcp_server_class) { m_object = tcp_server_class; m_timeID = -1; initUI(); } CTcpServerWin::~CTcpServerWin() { } /** * @brief CTcpServerWin::timerEvent 定时器显示网络消息 * @param event */ void CTcpServerWin::timerEvent(QTimerEvent *event) { /* 判断是哪个定时器 event->timerId() */ QPlainTextEdit * edtRecv = this->findChild<QPlainTextEdit *>("edtRecv"); QCheckBox * chk16Format = this->findChild<QCheckBox *>("chk16Format"); QString data; if(m_object->isOpen()){ QComboBox* cbbClient = this->findChild<QComboBox *>("cbbClient"); qintptr desc = cbbClient->currentData().toLongLong(); if(0 < m_object->read(desc, data, chk16Format->isChecked())) { edtRecv->appendPlainText(data); } } else { clickBtnClose(); } } /** * @brief CTcpServerWin::clickBtnOpen 连接 */ void CTcpServerWin::clickBtnOpen() { //QLineEdit * edtIP = this->findChild<QLineEdit *>("edtIP"); QLineEdit * edtPort = this->findChild<QLineEdit *>("edtPort"); QPushButton * btnOpen = this->findChild<QPushButton *>("btnOpen"); QPushButton * btnClose = this->findChild<QPushButton *>("btnClose"); QPushButton * btnSend = this->findChild<QPushButton *>("btnSend"); if( 0 == m_object->open(/*edtIP->text()*/"", edtPort->text().toInt())) { btnOpen->setEnabled(false); btnClose->setEnabled(true); btnSend->setEnabled(true); if(m_timeID == -1) m_timeID = startTimer(TIME_UPDATE); } } /** * @brief CTcpServerWin::clickBtnClose 断开 */ void CTcpServerWin::clickBtnClose() { QPushButton * btnOpen = this->findChild<QPushButton *>("btnOpen"); QPushButton * btnClose = this->findChild<QPushButton *>("btnClose"); QPushButton * btnSend = this->findChild<QPushButton *>("btnSend"); if(m_timeID != -1) { killTimer(m_timeID); m_timeID = -1; } m_object->close(); btnOpen->setEnabled(true); btnClose->setEnabled(false); btnSend->setEnabled(false); } /** * @brief CTcpServerWin::clickBtnSend 发送 */ void CTcpServerWin::clickBtnSend() { QPlainTextEdit * edtSend = this->findChild<QPlainTextEdit *>("edtSend"); QCheckBox * chk16Format = this->findChild<QCheckBox *>("chk16Format"); QComboBox* cbbClient = this->findChild<QComboBox *>("cbbClient"); QString data = edtSend->toPlainText(); qintptr desc = cbbClient->currentData().toLongLong(); m_object->send(desc, data, chk16Format->isChecked()); } /** * @brief CTcpServerWin::clickBtnClear 清空接收窗口 */ void CTcpServerWin::clickBtnClear() { QPlainTextEdit * edtRecv = this->findChild<QPlainTextEdit *>("edtRecv"); edtRecv->clear(); } /** * @brief CTcpServerWin::closeEvent 窗口关闭事件 * @param event * @note 不断开网络 */ void CTcpServerWin::closeEvent(QCloseEvent *event) { if(m_timeID != -1) { killTimer(m_timeID); m_timeID = -1; } deleteUI(); QWidget::closeEvent(event); } /** * @brief CTcpServerWin::slot_clientChanged 客户端连接数发生变化 */ void CTcpServerWin::slot_clientChanged() { // TODO BUG QComboBox* cbbClient = this->findChild<QComboBox *>("cbbClient"); if(nullptr == cbbClient) { qDebug()<<"slot_clientChanged error occur"; return; } //QString lastStr = cbbClient->currentText(); int index = cbbClient->currentIndex(); qDebug()<<"index"<<index; qintptr lastDesc; if(index!=-1) lastDesc= cbbClient->currentData().toLongLong(); //if(index) cbbClient->clear(); // 添加项目，并保存自定义项目 QMap<qintptr, QString> map = m_object->getClientList(); foreach(const qintptr desc, map.keys()) { // QVariant useVar; // useVar.setValue(s1); cbbClient->addItem(map.value(desc), desc); } if(index!=-1) { index = cbbClient->findData(lastDesc); cbbClient->setCurrentIndex(index); } } /** * @brief CTcpServerWin::initUI 初始化界面元素和布局 */ void CTcpServerWin::initUI() { // 布局 QHBoxLayout *hLay=new QHBoxLayout(this); QVBoxLayout *vLay1=new QVBoxLayout(this); QVBoxLayout *vLay2=new QVBoxLayout(this); // 水平布局 vLay2->setContentsMargins(0,0,0,0); hLay->addLayout(vLay1); hLay->addSpacing(10); hLay->addLayout(vLay2); // IP输入框 //QLineEdit* edtIP = new QLineEdit(this); //edtIP->setObjectName(QString::fromUtf8("edtIP")); //QRegExp rx("\\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\b"); //edtIP->setValidator(new QRegExpValidator(rx,this)); // port输入框 QLineEdit* edtPort = new QLineEdit(this); edtPort->setObjectName(QString::fromUtf8("edtPort")); // 复选框 16进制 QCheckBox* chk16Format = new QCheckBox (QStringLiteral("16进制"), this); chk16Format->setObjectName(QString::fromUtf8("chk16Format")); // 按钮 QPushButton* btnOpen = new QPushButton(QStringLiteral("打开"), this); btnOpen->setObjectName(QString::fromUtf8("btnOpen")); QPushButton* btnClose = new QPushButton(QStringLiteral("关闭"), this); btnClose->setObjectName(QString::fromUtf8("btnClose")); // 选择客户端 QComboBox* cbbClient = new QComboBox(this); cbbClient->setObjectName(QString::fromUtf8("cbbClient")); // cbbClient->clear(); // // 添加项目，并保存自定义项目 // QMap<qintptr, QString> map = m_object->getClientList(); // foreach(const qintptr desc, map.keys()) // { //// QVariant useVar; //// useVar.setValue(s1); // cbbClient->addItem(map.value(desc), desc); // } slot_clientChanged(); QPushButton* btnSend = new QPushButton(QStringLiteral("发送"), this); btnSend->setObjectName(QString::fromUtf8("btnSend")); QPushButton* btnClear = new QPushButton(QStringLiteral("清空"), this); btnClear->setObjectName(QString::fromUtf8("btnClear")); //btnClear->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); // 文本框 QPlainTextEdit* edtRecv=new QPlainTextEdit(this); edtRecv->setObjectName(QString::fromUtf8("edtRecv")); edtRecv->setReadOnly(true); edtRecv->document()->setMaximumBlockCount(100);// 限制最大存储行数 QPlainTextEdit* edtSend=new QPlainTextEdit(this); edtSend->setObjectName(QString::fromUtf8("edtSend")); // label QLabel* labRecv = new QLabel(QStringLiteral("接收窗口"), this); QLabel* labSend = new QLabel(QStringLiteral("发送窗口"), this); //QLabel* labIP = new QLabel(QStringLiteral("IP"), this); QLabel* labPort = new QLabel(QStringLiteral("Port"), this); // 垂直布局1 vLay1->setSpacing(5); vLay1->setContentsMargins(0,0,0,0); vLay1->addWidget(labRecv); vLay1->addWidget(edtRecv); vLay1->addWidget(labSend); vLay1->addWidget(edtSend); // 垂直布局2 vLay2->setSpacing(5); vLay2->setContentsMargins(0,0,0,0); //vLay2->addWidget(labIP); //vLay2->addWidget(edtIP); vLay2->addSpacing(10); vLay2->addWidget(labPort); vLay2->addWidget(edtPort); vLay2->addWidget(chk16Format); vLay2->addWidget(btnOpen); vLay2->addWidget(btnClose); vLay2->addWidget(cbbClient); vLay2->addWidget(btnSend); vLay2->addWidg