清理日志

void checkLogsDir()
{
    QDir dir("logs");   //创建一个dir对象
    if (QDir().exists ("logs"))
    {
        QString dateDir=QDateTime::currentDateTime ().toString ("yyyyMMdd");
        QDate currentDate=QDate::fromString (dateDir,"yyyyMMdd");
       // List directories that match the filters.
        dir.setFilter (QDir::Dirs);
        QFileInfoList dirInfoList=dir.entryInfoList ();

        int count=dirInfoList.count ();
        //获取清理时间
        uint intervalTime=settingValue ("clearLogsTime","interval",10,"common.ini").toUInt ()*24*60*60;

        for (int i=0; i<count; i++)
        {   //文件信息
            QFileInfo fileInfo=dirInfoList[i];

            QString logsDirName=fileInfo.fileName (); //获取文件夹名称
            if (logsDirName.length () < 8)
            {
                continue;
            }
            QDate lastDate=QDate::fromString (logsDirName,"yyyyMMdd");
            if (QDateTime(currentDate).toTime_t () - QDateTime(lastDate).toTime_t () >= intervalTime)
            {
                QString cmd="rm -rf logs/"+logsDirName;  //命令
                ::system (cmd.toStdString ().c_str ());  //执行命令
            }
        }
    }
}