一个支持中文的日志类
在网上看到了这个类，稍微做了修改，支持中文日志，并且重新排版，添加了部分函数，感谢原作者的分享。
#pragma once #include <afxdlgs.h> //打开文件 #include <ShlObj.h> //浏览文件夹 #include <string> //std::string class CLOG { public: CLOG(); virtual ~CLOG(); public: //-日志文件- //----如果没有指定，则为exe所在路径下的log.log文件---- static CString GetLogFile(); static short SetLogFile(LPCTSTR strPath); static short ViewLogFile(); //-前缀- //----如果多个进程往同一个文件输出日志，可以为每个进程设置一个前缀---- //----前缀出现在日期时间之前---- static short SetPrefix(LPCTSTR strPrefix); //-日志信息- //-获取日志字符串,可以另外- static CString sOutV(LPCTSTR strType, LPCTSTR strFormat = NULL, va_list valist = NULL); static CString sOut0(LPCTSTR strType, LPCTSTR strFormat = NULL,...); static CString sOut ( LPCTSTR strFormat = NULL,...); //-将日志信息输出到文件- static short OutV(LPCTSTR strType, LPCTSTR strFormat = NULL, va_list valist = NULL); static short Out0(LPCTSTR strType, LPCTSTR strFormat = NULL,...); static short Out(const char* pInfo); static short Out(LPCTSTR strFormat = NULL, ...); protected: static CString s_strLogFile; static CString s_strLogPrefix; static HANDLE s_hWriteEvent; };
然后是cpp文件
#include "Log.h" // 得到可执行程序所在目录 // BOOL bIncludeSep -- 是否包含最后的分隔符"\" CString GetExePath(BOOL bIncludeSep) { // 得到当前的文件名 CString strFileName; GetModuleFileName(AfxGetInstanceHandle(),strFileName.GetBuffer(_MAX_PATH),_MAX_PATH); strFileName.ReleaseBuffer(); // 得到当前目录 strFileName=strFileName.Left(strFileName.ReverseFind(_T('\\'))+1); if(bIncludeSep) return strFileName; else return strFileName.Left(strFileName.GetLength()-1); } //-获取最后的文件名 如果给定文件不是全路径，就是相对于exe- CString GetFileForExePath(LPCTSTR strCurFileName) { CString strPath = strCurFileName; if(!strPath.IsEmpty()) { //-相对路径- if(strPath.Find(_T(":"))<=0) { strPath.Format(_T("%s%s"), GetExePath(TRUE), strCurFileName); } } return strPath; } #define LOG_EVENT _T("ChyLogWrite") CString CLOG::s_strLogFile = _T(""); CString CLOG::s_strLogPrefix = _T(""); HANDLE CLOG::s_hWriteEvent = NULL; CLOG::CLOG() { } CLOG::~CLOG() { } short CLOG::SetLogFile(LPCTSTR strPath) { if(strPath==NULL || strPath[0]==0) s_strLogFile = GetFileForExePath(_T("log.log")); else s_strLogFile = GetFileForExePath(strPath); return 1; } CString CLOG::GetLogFile() { return s_strLogFile; } short CLOG::ViewLogFile() { CString strLogFile = GetLogFile(); ShellExecute(NULL, _T("open"), strLogFile, NULL, NULL, SW_SHOW); return strLogFile.IsEmpty()?0:1; } short CLOG::SetPrefix(LPCTSTR strPrefix) { if(strPrefix && strPrefix[0]) { s_strLogPrefix = strPrefix; } return 1; } CString CLOG::sOutV(LPCTSTR strType, LPCTSTR strFormat, va_list valist) { CString strPart_Prefix; if(!s_strLogPrefix.IsEmpty()) { strPart_Prefix.Format(_T("[%s]"), s_strLogPrefix); } CString strPart_Time; { SYSTEMTIME sysTime = {0}; GetLocalTime(&sysTime); strPart_Time.Format(_T("[%2d-%2d %2d:%2d:%2d_%3d]"), sysTime.wMonth, sysTime.wDay, sysTime.wHour, sysTime.wMinute, sysTime.wSecond, sysTime.wMilliseconds); } CString strPart_Type; if(strType && strType[0]) { strPart_Type.Format(_T("[%s]"), strType); } CString strPart_Info; { strPart_Info.FormatV(strFormat, valist); } CString str = strPart_Prefix + strPart_Time + strPart_Type+ strPart_Info; return str; } CString CLOG::sOut0(LPCTSTR strType, LPCTSTR strFormat,...) { va_list valist; va_start(valist, strFormat); CString strInfo = sOutV(strType, strFormat, valist); va_end(valist); return strInfo; } CString CLOG::sOut(LPCTSTR strFormat,...) { va_list valist; va_start(valist, strFormat); CString strInfo = sOutV(NULL, strFormat, valist); va_end(valist); return strInfo; } short CLOG::OutV(LPCTSTR strType, LPCTSTR strFormat, va_list valist) { //-- if(s_hWriteEvent==NULL) { s_hWriteEvent = OpenEvent(0, FALSE,LOG_EVENT); if(s_hWriteEvent==NULL) s_hWriteEvent = CreateEvent(NULL, FALSE, TRUE, LOG_EVENT); } WaitForSingleObject(s_hWriteEvent, INFINITE); //-打开关闭文件- if(s_strLogFile.IsEmpty()) SetLogFile(NULL); CStdioFile file; if(file.Open(s_strLogFile, CFile::modeCreate|CFile::modeNoTruncate|CFile::modeWrite)) { setlocale(LC_CTYPE, "chs");//设定f CString strPart_NewLine = _T("\n"); CString strInfo = sOutV(strType, strFormat, valist); CString str = strInfo + strPart_NewLine; file.SeekToEnd(); file.WriteString(str); file.Close(); setlocale(LC_ALL, "C"); //还原区域设定 } SetEvent(s_hWriteEvent); return 1; } short CLOG::Out0(LPCTSTR strType, LPCTSTR strFormat,...) { va_list valist; va_start(valist, strFormat); short rtn = OutV(strType, strFormat, valist); va_end(valist); return rtn; } short CLOG::Out(const char* pInfo) { if (s_hWriteEvent == NULL) { s_hWriteEvent = OpenEvent(0, FALSE, LOG_EVENT); if (s_hWriteEvent == NULL) s_hWriteEvent = CreateEvent(NULL, FALSE, TRUE, LOG_EVENT); } WaitForSingleObject(s_hWriteEvent, INFINITE); //-打开关闭文件- if (s_strLogFile.IsEmpty()) SetLogFile(NULL); CStdioFile file; if (file.Open(s_strLogFile, CFile::modeCreate | CFile::modeNoTruncate | CFile::modeWrite)) { setlocale(LC_CTYPE, "chs");//设定f CString strPart_NewLine = _T("\n"); CString strPart_Prefix; if (!s_strLogPrefix.IsEmpty()) { strPart_Prefix.Format(_T("[%s]"), s_strLogPrefix); } CString strPart_Time; { SYSTEMTIME sysTime = { 0 }; GetLocalTime(&sysTime); strPart_Time.Format(_T("[%2d-%2d %2d:%2d:%2d_%3d]"), sysTime.wMonth, sysTime.wDay, sysTime.wHour, sysTime.wMinute, sysTime.wSecond, sysTime.wMilliseconds); } CString str = strPart_Prefix + strPart_Time + pInfo + strPart_NewLine; file.SeekToEnd(); file.WriteString(str); file.Close(); setlocale(LC_ALL, "C"); //还原区域设定 } SetEvent(s_hWriteEvent); return 1; } short CLOG::Out(LPCTSTR strFormat,...) { va_list valist; va_start(valist, strFormat); short rtn = OutV(NULL, strFormat, valist); va_end(valist); return rtn; }
使用范例：
/-设定日志文件，建议在Exe初始化时设定- //-设置相对路径则表示exe所在路径下- //-如果不设定则为exe所在路径下的log.log文件- CLOG::SetLogFile("bbb.log"); //-获取日志文本串，可以自行处理，例如输出到界面- CString str; str = CLOG::sOut0("debug", "hello"); str = CLOG::sOut0("warn5", "hello %d", 25); str = CLOG::sOut0("warn3", "hello %s, you have %d apples!", "libai", 10); str = CLOG::sOut ("hello %s, you have %d apples!", "libai", 10); //-输出到文件- CLOG::Out0("debug", "hello"); CLOG::Out0("warn5", "hello %d", 25); CLOG::Out0("warn3", "hello %s, you have %d apples!", "libai", 10); CLOG::Out ("hello %s, you have %d apples!", "libai", 10); //-查看日志文件- CLOG::ViewLogFile();
原文地址：http://tiannanyi.blog.163.com/blog/static/1873593442013489035280/
