No appenders could be found for logger(log4j)?

Question

I have put log4j to my buildpath, but I get the following message when I run my application:

log4j:WARN No appenders could be found for logger (dao.hsqlmanag         


        

Answer 1

Quick solution:

1. add code to main function:

   String log4jConfPath = "/path/to/log4j.properties";
   PropertyConfigurator.configure(log4jConfPath);
   

2. create a file named log4j.properties at /path/to

   log4j.rootLogger=INFO, stdout
   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{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n