log4j用法

package lee;

import org.apache.log4j.Logger;

public class testLog {
	private static Logger logger = Logger.getLogger(testLog.class);
	public static void main(String[] args){
		logger.info("ok2");
	}
}

    log4j.rootLogger=INFO,toFile,console  
    ########   \u8F93\u51FA\u5230\u5230\u6587\u4EF6   ##########  
    log4j.appender.toFile=org.apache.log4j.FileAppender  
    log4j.appender.toFile.Threshold=INFO
    log4j.appender.toFile.layout=org.apache.log4j.PatternLayout  
    log4j.appender.toFile.file=test.log  
    ########  \u8F93\u51FA\u5230\u5230\u63A7\u5236\u53F0  ##########  
    log4j.appender.console=org.apache.log4j.ConsoleAppender
	log4j.appender.console.Threshold=INFO
	log4j.appender.console.ImmediateFlush=true
	log4j.appender.console.Target=System.err
	log4j.appender.console.layout=org.apache.log4j.PatternLayout
	log4j.appender.console.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss.SSS}] %p [%t] %c{1}.%M(%L) | %m%n
	
	log4j.appender.R=org.apache.log4j.RollingFileAppender  
	log4j.appender.R.File=e:/logs/douban.log
	log4j.appender.R.MaxBackupIndex=10  
	log4j.appender.R.layout=org.apache.log4j.PatternLayout  
	log4j.appender.R.layout.ConversionPattern=%d-[HL] %p %t %c - %m%n