java日志

    <dependency>  
        <groupId>org.slf4j</groupId>  
        <artifactId>slf4j-log4j12</artifactId>  
        <version>1.7.2</version>  
    </dependency>  

#config root logger
log4j.rootLogger=INFO,R,stdout  
  
log4j.appender.stdout=org.apache.log4j.ConsoleAppender  
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=Logger-->%5p{%F\:%L}-%m%n 
  
log4j.appender.R=org.apache.log4j.DailyRollingFileAppender  
log4j.appender.R.File=logs/log.txt
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=Logger-->%5p{%F\:%L}-%m%n 


#config this Project.file logger
log4j.logger.thisProject.file=INFO,thisProject.file.out

log4j.appender.thisProject.file.out=org.apache.log4j.DailyRollingFileAppender
log4j.appender.thisProject.file.out.File=logContentFile.log
log4j.appender.thisProject.file.out.layout=org.apache.log4j.PatternLayout

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


public class App 
{
    private static final Logger logger = LoggerFactory.getLogger(App.class);
    
    public static void main( String[] args )
    {
        logger.info("now {}" , "starting server");  
    }
}