您当前的位置：首页 >  边玩边学  >  log4cpp使用方法 网站首页 边玩边学

log4cpp使用方法

发布时间：2021-01-04 16:30:50编辑：阅读（）

•  上一篇文章已经教了大家如何编译log4cpp，下边就是教大家如何把log4cpp应用到具体的自己的项目中。

  头文件包含于lib库引入等操作默认大家都会，就不详细介绍了，如果大家有疑问欢迎大家留言

  1、配置文件准备

   # log4cpp.properties
  
  log4cpp.rootCategory=DEBUG, rootAppender
  log4cpp.category.sub1=DEBUG, A1, A2
  log4cpp.category.sub1.sub2=DEBUG, A3
  
  log4cpp.appender.rootAppender=ConsoleAppender
  log4cpp.appender.rootAppender.layout=PatternLayout
  log4cpp.appender.rootAppender.layout.ConversionPattern=%d [%p] %m%n 
  
  log4cpp.appender.A1=FileAppender
  log4cpp.appender.A1.fileName=A1.log
  log4cpp.appender.A1.layout=BasicLayout
  
  log4cpp.appender.A2=FileAppender
  log4cpp.appender.A2.threshold=WARN
  log4cpp.appender.A2.fileName=A2.log
  log4cpp.appender.A2.layout=PatternLayout
  log4cpp.appender.A2.layout.ConversionPattern=%d [%p] %m%n 
  
  log4cpp.appender.A3=RollingFileAppender
  log4cpp.appender.A3.fileName=A3.log
  log4cpp.appender.A3.maxFileSize=200
  log4cpp.appender.A3.maxBackupIndex=1
  log4cpp.appender.A3.layout=PatternLayout
  log4cpp.appender.A3.layout.ConversionPattern=%d [%p] %m%n 

  2、demo代码

  // main.cpp
  #include 
  #include 
  
  int main(int argc, char* argv[])
  {
  	std::string initFileName = "log4cpp.properties";
  	log4cpp::PropertyConfigurator::configure(initFileName);
  
  	log4cpp::Category& root = log4cpp::Category::getRoot();
  
  	log4cpp::Category& sub1 = 
  		log4cpp::Category::getInstance(std::string("sub1"));
  
  	log4cpp::Category& sub2 = 
  		log4cpp::Category::getInstance(std::string("sub1.sub2"));
  
  	root.warn("Storm is coming");
  
  	sub1.debug("Received storm warning");
  	sub1.info("Closing all hatches");
  
  	sub2.debug("Hiding solar panels");
  	sub2.error("Solar panels are blocked");
  	sub2.debug("Applying protective shield");
  	sub2.warn("Unfolding protective shield");
  	sub2.info("Solar panels are shielded");
  
  	sub1.info("All hatches closed");
  
  	root.info("Ready for storm.");
  
  	log4cpp::Category::shutdown();
  
  	return 0;
  }

  3、输出结果

   2012-11-14 18:44:58,163 [WARN] Storm is coming
  2012-11-14 18:44:58,166 [DEBUG] Received storm warning
  2012-11-14 18:44:58,170 [INFO] Closing all hatches
  2012-11-14 18:44:58,172 [DEBUG] Hiding solar panels
  2012-11-14 18:44:58,175 [ERROR] Solar panels are blocked
  A3.log.1
  2012-11-14 18:44:58,179 [DEBUG] Applying protective shield
  2012-11-14 18:44:58,183 [WARN] Unfolding protective shield
  2012-11-14 18:44:58,186 [INFO] Solar panels are shielded
  2012-11-14 18:44:58,190 [INFO] All hatches closed
  2012-11-14 18:44:58,192 [INFO] Ready for storm.

   

   

  4、相关文章链接

  1、windows下编译log4cpp
   
  2、log4cpp的使用方法
   
  3、log4cpp预编译文件下载