RecvDataObject *recv_obj = new RecvDataObject;QThread* backgroundRecvThread = new QThread;recv_obj->moveToThread(backgroundRecvThread);connect(recv_obj, &RecvDataObject::dataRecved,this, &TerminalStatusWidget::slotDataRecved,Qt::QueuedConnection);backgroundRecvThread->start();
class RecvDataObject : public QObject{Q_OBJECTpublic:RecvDataObject();~RecvDataObject();signals:void dataRecved(std::vectorlist) ;public slots:void slotRecvTask();private:QTimer m_RecvTask;};
Q_DECLARE_METATYPE(RunTimeInfo)Q_DECLARE_METATYPE(std::vector) class RecvDataObject : public QObject{Q_OBJECTpublic:RecvDataObject(){qRegisterMetaType("RunTimeInfo"); qRegisterMetaType<std::vector>("std::vector " );m_RecvTask.setInterval(5000);connect(&m_RecvTask, SIGNAL(timeout()), this, SLOT(slotRecvTask()));m_RecvTask.start();}~RecvDataObject();signals:void dataRecved(std::vectorlist) ;public slots:void slotRecvTask();private:QTimer m_RecvTask;};
qRegisterMetaType("RunTimeInfo"); qRegisterMetaType<std::vector>("std::vector " );这样信号槽函数才能正确工作，通过信号槽机制跨线程的数据传递完成了，完美运行。 references: https://stackoverflow.com/questions/638251/how-to-emit-cross-thread-signal-in-qt http://www.qtcentre.org/threads/54409-signal-slot-with-std-string-How https://stackoverflow.com/questions/14083599/signals-and-slots-passing-data
Qt5中运行后台网络读取线程与主UI线程互交 - foo__hack - 博客园 (cnblogs.com)
原文始发于微信公众号（汇编语言）：Qt5中运行后台网络读取线程与主UI线程互交
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