Qt 日志宏

#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