重构qDebug()<<，使log输出到文件
#include <QProcessEnvironment> #include <QDateTime> #include <QFile> #include <QIODevice> class HSDbg { public: HSDbg& operator<<(const QString& str) { QTextStream txtOutput(&qtLogfile); if(qtLogfile.open(QIODevice::Append | QIODevice::Text)) { qDebug() << str; txtOutput << str << "\n"; qtLogfile.close(); } return *this; } HSDbg& operator<<(const QByteArray& str) { QTextStream txtOutput(&qtLogfile); if(qtLogfile.open(QIODevice::Append | QIODevice::Text)) { qDebug() << str; txtOutput << str << "\n"; qtLogfile.close(); } return *this; } HSDbg& operator<<(const char* str) { QTextStream txtOutput(&qtLogfile); if(qtLogfile.open(QIODevice::Append | QIODevice::Text)) { qDebug() << QString(str); txtOutput << str << "\n"; qtLogfile.close(); } return *this; } HSDbg& operator<<(const int& i) { QTextStream txtOutput(&qtLogfile); if(qtLogfile.open(QIODevice::Append | QIODevice::Text)) { qDebug() << i; txtOutput << i << "\n"; qtLogfile.close(); } return *this; } HSDbg(QString fileName) { qtLogfile.setFileName(fileName); } private: QFile qtLogfile; }; #define LOG_FILE_PATH QProcessEnvironment::systemEnvironment().value("APPDATA") + "\\test\\logs\\" #define LOG_FILE_NAME "Qt_" + QDateTime::currentDateTime().toString("yyyy-MM-dd_hh-mm-ss") + ".txt" static HSDbg sHSDbg(LOG_FILE_PATH + LOG_FILE_NAME); //用此QDBG输出到log文件中 #define QDBG sHSDbg<<"==="+QString(__FILE__)+" "+QString(__FUNCTION__)+"():"+QString::number(__LINE__) //用此QDBG输出到consloe上 //#define QDBG qDebug()<<__FILE__<<__FUNCTION__<<"():"<<__LINE__
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