一个写Log日志的类，简单高效，多线程，有临界区保护，支持按日期，时间写日志.zip

#include "StdAfx.h" #include "Log.h" Log::Log(CString strFileName/* = ""*/, CString strPostfix/* = "log"*/) { m_logLevel = LOG_DEBUG; m_strFileName = strFileName; strPostfix.Replace(".", ""); m_strPostfix = strPostfix; m_nType = 0;//日志类型：0-按天生成，1-单个日志文件 //日志文件夹 m_strLogFolder.Format("%sLog\\",GetModulePath()); CreateDirectory(m_strLogFolder, NULL);//生成文件夹 ::InitializeCriticalSection(&m_criticalSection); } Log::~Log(void) { ::DeleteCriticalSection(&m_criticalSection); } bool Log::WriteLog(CString strLog,LogLevel logLevel) { if (logLevel > m_logLevel) { return false; } m_hMutex.Lock(); CString strLogDir = m_strLogFolder + GetDT() + "\\"; CreateDirectory(strLogDir, NULL); CString strLogFile; if (0 == m_nType)//日志类型：0-按天生成 { strLogFile.Format("%s%s%s.%s", strLogDir, m_strFileName, GetDT(), m_strPostfix); } else if (1 == m_nType)//日志类型：1-单个日志文件 { strLogFile.Format("%s%s.%s", strLogDir, m_strFileName, m_strPostfix); } //m_strFile = strLogFile; ::EnterCriticalSection(&m_criticalSection); //locale::global(locale(""));//将全局区域设为操作系统默认区域--用于中文文件夹 //m_fileLog.open(strLogFile, ios::app); //locale::global(locale("C"));//还原全局区域设定 m_pFile = fopen(strLogFile,"a+"); if(m_pFile) { CString strTemp; CString strDayTime = GetCurrentDateTime(); strTemp.Format("[%s]: \n%s\n", strDayTime, strLog); fputs(strTemp.GetBuffer(), m_pFile); fflush(m_pFile); fclose(m_pFile); //m_fileLog << strTemp;//write to log file } //m_fileLog.close(); ::LeaveCriticalSection(&m_criticalSection); m_hMutex.Unlock(); return true; } bool Log::WriteLog(CString strLog, CString strFile,LogLevel logLevel) { if (logLevel > m_logLevel) { return false; } m_hMutex.Lock(); CString strLogDir = m_strLogFolder + GetDT() + "\\"; CreateDirectory(strLogDir, NULL); CString strLogFile; strLogFile.Format("%s%s.%s", strLogDir, strFile, m_strPostfix); ::EnterCriticalSection(&m_criticalSection); //locale::global(locale(""));//将全局区域设为操作系统默认区域--用于中文文件夹 //m_fileLog.open(strLogFile, ios::app); //locale::global(locale("C"));//还原全局区域设定 m_pFile = fopen(strLogFile,"a+"); if(m_pFile) { CString strTemp; CString strDayTime = GetCurrentDateTime(); strTemp.Format("[%s]: \n%s\n", strDayTime, strLog); fputs(strTemp.GetBuffer(), m_pFile); fflush(m_pFile); fclose(m_pFile); //m_fileLog << strTemp;//write to log file } //m_fileLog.close(); ::LeaveCriticalSection(&m_criticalSection); m_hMutex.Unlock(); return true; } //获取系统当前日期，格式如：2010-06-22 CString Log::GetCurrentDay() { CString strDay;//2010-06-22 COleDateTime currentTime = COleDateTime::GetCurrentTime(); strDay = currentTime.Format("%Y-%m-%d"); return strDay; } //获取系统当前日期，格式如：20100622 CString Log::GetDT() { CString strDT;//20100622 COleDateTime currentTime = COleDateTime::GetCurrentTime(); strDT = currentTime.Format("%Y%m%d"); return strDT; } //获取系统当前日期与时间，格式如：2009-06-29 17:16:20 CString Log::GetCurrentDateTime() { CString strTime;//2009-06-29 17:16:20 COleDateTime currentTime = COleDateTime::GetCurrentTime(); strTime = currentTime.Format("%Y-%m-%d %H:%M:%S"); return strTime; } //获取执行程序所在路径 CString Log::GetModulePath() { CString strPath; //---------------------------------------------------------- char cFile[MAX_CHAR]; GetModuleFileName(NULL, cFile, sizeof(cFile)); CString strTemp = cFile; int nPos = strTemp.ReverseFind('\\'); strPath = strTemp.Left(nPos+1); //---------------------------------------------------------- return strPath; } //设置日志等级 void Log::SetLogLevel(LogLevel logLevel) { m_logLevel = logLevel; } //删除过期日志文件 void Log::DeleteLog(int nLogSaveDays) { CString strLogFile; strLogFile.Format("%s\\*.log", m_strLogFolder); CFileFind finder; BOOL bWorking = finder.FindFile(strLogFile); while (bWorking) { bWorking = finder.FindNextFile(); CTime currentTime = CTime::GetCurrentTime(); CTime timeFile; finder.GetLastAccessTime(timeFile); CTimeSpan ts = currentTime - timeFile; int nSecond = (int)ts.GetTotalSeconds(); if (nSecond > nLogSaveDays*24*60*60)//超时，过期 { CString strFile; strFile.Format("%s\\%s", m_strLogFolder, finder.GetFileName()); DeleteFile(strFile); } } }