正文
Qt 日志宏
提示：扫一扫查出行【扫一扫了解最新限行尾号】
复制提示
随便写了一个日志帮助的宏，既可以如同qDebug（）一般在调试时输出信息，也可以在输出文本文件
#ifndef LOG_H
#define LOG_H#include <QDir>
#include <QFile>
#include <QString>
#include <QDebug>
#include <QDate>
#include <QTime>
#include <QDateTime>
#include <QTextStream>#define WRITE_LOG_FILE(type,msg)(\
{QString err;\
switch(type){\
case QtDebugMsg:{err = "调试信息：";}break;\
case QtWarningMsg:{err = "警告信息：";}break;\
case QtCriticalMsg:{err = "严重错误：";}break;\
case QtFatalMsg:{err = "致命错误：";}break;\
default:{err = "常规信息：";}break;}\
QString text = QString("%1\r\n 所在文件：%2 \r\n 所在位置：%3 \r\n 记录时间：%4 \r\n 记录信息：%5 \r\n").arg (err).arg (__FILE__).arg (__LINE__).arg (QDateTime::currentDateTime ().toString ("yyyy-MM-dd hh:mm:ss ddd")).arg (msg);qDebug() << text;\
QDir dir;\
QString path = dir.currentPath () + "\\log\\";\
QDateTime dt = QDateTime::currentDateTime ();\
QTime t = dt.time ();\
QDate d = dt.date ();\
QString name = QString("%1%2%3%4").arg (QString::number (d.year ())).arg (QString::number (d.month ())).arg (QString::number (d.day ())).arg (QString::number (t.hour ())) + QString(".txt");\
QString filePath = path + name;\
if(!dir.exists(path))\
{\
dir.mkpath(path);\
}\
QFile file(filePath);\
if(!file.exists ())\
{\
file.open (QIODevice::WriteOnly);\
file.close ();\
}\
if(file.open(QIODevice::WriteOnly | QIODevice::Append))\
{\
QTextStream stream(&file);\
stream << text << "\r\n";\
file.flush();file.close();\
}\
})
#define DEBUG_LOG(msg)(WRITE_LOG_FILE(QtDebugMsg,msg))
#define WARNING_LOG(msg)(WRITE_LOG_FILE(QtWarningMsg,msg))
#define CRITICAL_LOG(msg)(WRITE_LOG_FILE(QtCriticalMsg,msg))
#define FATAL_LOG(msg)(WRITE_LOG_FILE(QtFatalMsg,msg))
#define LOG(msg)(WRITE_LOG_FILE(-1,msg))#endif // LOG_H
