C++

Log4c 实现配置文件动态参数。

 string rootPath = StringUtil::getProjectPath();
 string path = rootPath+"config/log4j/log4cxx.properties";
 FileInputStreamPtr propFile = new FileInputStream(path);
 helpers::Properties props;
 props.load(propFile); 
 vector<LogString> keys =props.propertyNames(); 
 for (vector<LogString>::iterator iter = keys.begin(); iter != keys.end(); ++iter){
  LogString key = *iter; LogString val = props.get(key);
  LogString::iterator iterF1,iterL1;
  int index = val.find(_T("{root_path}"),0);
  //wcout<<val<<"   -----------   "<<index<<endl;
  if(index>=0){
   iterF1 = val.begin()+index;  iterL1 = iterF1+12;
   val.replace(iterF1,iterL1,StringUtil::s2ws(rootPath));
   props.setProperty(key,val);
   wcout<<__FUNCTION__<<val<<"----- "<<index<<" ---- "<<props.get(key)<< endl;
  }
  index=val.find(_T("{investorid}"),0);
  if(index>=0){
   iterF1 = val.begin()+index;  iterL1 = iterF1+12;
   val.replace(iterF1,iterL1,StringUtil::s2ws(name));
   props.setProperty(key,val);
   //wcout<<__FUNCTION__<<val<<"----- "<<index<<" ---- "<<props.get(key)<< endl;
  }
 }
 PropertyConfigurator::configure(props);
 this->logger= Logger::getLogger("SQtrading"); 
 LOG4CXX_INFO(logger,__FUNCTION__<<"[" << name.c_str() << "] rootpath=" << getenv("ROOT_PATH")<<" logfile=" << getenv("LOG_FILE"));

配置文件如下：

#modify
#Wed Jan 23 15:56:21 CST 2019
log4j.logger.PtradeTrading=DEBUG,fileAppender
log4j.appender.fileAppender.layout.ConversionPattern=%d [%p] [%t] %m%n
log4j.appender.fileAppender.Append=true
log4j.appender.fileAppender.File={root_path}/{investorid}.log
log4j.appender.fileAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fileAppender.datePattern='.'yyyy-MM-dd
log4j.appender.fileAppender.layout=org.apache.log4j.PatternLayout
#sqtrading
log4j.logger.SQtrading=DEBUG,fileAppender2
log4j.appender.fileAppender2.layout.ConversionPattern=%d [%p] [%t] %m%n
log4j.appender.fileAppender2.Append=true
log4j.appender.fileAppender2.File= {root_path}/log/dll/{investorid}.log
log4j.appender.fileAppender2=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fileAppender2.datePattern='.'yyyy-MM-dd
log4j.appender.fileAppender2.layout=org.apache.log4j.PatternLayout