C++日志类

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//Log.h头文件

/*简单日志类  */#ifndef LOGGER_H_#define LOGGER_H_#include <string>#include <time.h>#include <Windows.h>using namespace std;//日志级别枚举  typedef enum LogLevel  {  信息 = 0,  //什么都不记录  错误,     //只记录严重错误  警告,     //记录严重错误，普通错误  致命,   //记录严重错误，普通错误，警告  };  class CLog{public:CLog();~CLog();//写日志方法void Log(string msg,LogLevel level );protected://初始化void GetExeName();//获取当前系统时间string GetCurrentTime();string m_Name;string m_Path;};#endif

//Log.cpp文件

#include "stdafx.h"#include "Log.h"#include <fstream>  CLog::CLog(){if (m_Name.size()>0) m_Name.clear();if (m_Path.size()>0) m_Path.clear();this->GetExeName();}CLog::~CLog(){}void CLog::GetExeName(){    // 取进程执行文件名称char szExeName[MAX_PATH ]={0};  //GetModuleFileNameA(NULL, szExeName, MAX_PATH);if ( ::GetModuleFileNameA(NULL, szExeName, MAX_PATH) > 0)//获取当前进程已加载模块的文件的完整路径{char* pBegin = szExeName;char* pTemp  = szExeName;while ( *pTemp != 0 ){if ( *pTemp == '\\' ){pBegin = pTemp + 1;}pTemp++;}//(strrchr(szExeName, '\\'))[0] = 0; // 删除文件名，只获得路径字串  m_Path.insert(0,szExeName);m_Name.insert(0,pBegin);int a = m_Name.find('.');m_Name.erase(a);ZeroMemory(szExeName,sizeof(szExeName));sprintf_s(szExeName,"%s%s",m_Name.c_str(),".log");m_Name.clear();m_Name.insert(0,szExeName);}}void CLog::Log(string msg,LogLevel level ){ofstream outfile;  outfile.open(m_Name.c_str(),ios::out|ios::app|ios::ate);  switch(level)  {  case 信息:  if (outfile.is_open()) outfile<<this->GetCurrentTime().c_str()<<m_Path.c_str()<<": "<<msg.c_str()<<" -->信息"<<endl;  break;  case 错误:  if (outfile.is_open()) outfile<<this->GetCurrentTime().c_str()<<m_Path.c_str()<<": "<<msg.c_str()<<" -->错误"<<endl;  break;  case 警告:  if (outfile.is_open()) outfile<<this->GetCurrentTime().c_str()<<m_Path.c_str()<<": "<<msg.c_str()<<" -->警告"<<endl;  break;  case 致命:  if (outfile.is_open()) outfile<<this->GetCurrentTime().c_str()<<m_Path.c_str()<<": "<<msg.c_str()<<" -->致命"<<endl;  break;  }  outfile.close();}string CLog::GetCurrentTime(){struct tm t;   //tm结构指针time_t now;  //声明time_t类型变量time(&now);      //获取系统日期和时间localtime_s(&t, &now);   //获取当地日期和时间char temp[50] = {0};sprintf_s(temp,"[%d-%d-%d %d:%d:%d]" ,t.tm_year + 1900,t.tm_mon + 1,t.tm_mday,t.tm_hour,t.tm_min,t.tm_sec);std::string  pTemp=temp;return pTemp;}

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