log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API. 下载地址

也可以看出Java/C++是互相借鉴的，没有好坏之分。

很详细的介绍在

本文记录在项目中的一个常用实例。

定义工具文件

Util.h

#include 
    
     #include 
     
      #include 
      
       #include 
       
        using namespace log4cplus;using namespace log4cplus::helpers;inline void InitLogger(  const string& name = "PINGLOG",  const string& path = "./log",  const string& loglevel = "DEBUG",  const string& pattern = "%-10D{%H:%M:%S.%q} : [%p] : %m%n"){  log4cplus::SharedAppenderPtr append_1(new log4cplus::DailyRollingFileAppender(path, log4cplus::HOURLY , 1, true));  append_1->setName(name);  append_1->setLayout( std::auto_ptr
        
         (new log4cplus::PatternLayout(pattern)) );  log4cplus::Logger::getInstance(name).addAppender(append_1);  log4cplus::Logger::getInstance(name).setLogLevel(log4cplus::LogLevelManager().fromString(loglevel));}#define LOG_DEBUG(msg) \  LOG4CPLUS_DEBUG(log4cplus::Logger::getInstance("PINGLOG"), msg)#define LOG_INFO(msg) \  LOG4CPLUS_INFO(log4cplus::Logger::getInstance("PINGLOG"), msg) #define LOG_WARN(msg) \  LOG4CPLUS_WARN(log4cplus::Logger::getInstance("PINGLOG"), msg)
        
       
      
     
    

使用

#include "Util.h"InitLogger();LOG_INFO("test");LOG_WARN("test" << " WARN");

注意：保存路径要具体到文件，如./log，就是保存到当前路径log文件中。