log4j相关

 1、手工加载配置

   java.util.Properties properties=new Properties();
   properties.load(new FileInputStream(new File(...log4j.properties)));
   org.apache.log4j.PropertyConfigurator.configure(properties); 
   PropertyConfigurator.configure("D:\\workspace\\xx\\conf\\log4j.properties");

 

2 、例子

//调试阶段用debug,服务器用info
log4j.rootLogger=info, stdout,R
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = %d %-5p [%c] %m%n

log4j.appender.R = org.apache.log4j.DailyRollingFileAppender
log4j.appender.R.File = ../logs/xx.log
log4j.appender.R.Append = true
log4j.appender.R.DatePattern = '.'yyy-MM-dd
log4j.appender.R.layout = org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern = %d %-5p [%c:%L] %m%n
//其它配置会走rootLogger的配置，打入控制台和文件
log4j.logger.org.springframework=warn
log4j.logger.org.mybatis=warn

 

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java.lang.Object
  java.util.Dictionary<K,V>
      java.util.Hashtable<Object,Object>    //Hashtable<String,Object> map=new Hashtable<String,Object>();
          java.util.Properties