Log4j: Warn please initialize the log4j system properly problem solved

When Tomcat is started, the following warning is displayed:

Log4j: warn no appenders cocould be found for logger (Org. Apache. commons. digester. digester. Sax ).
Log4j: Warn please initialize the log4j system properly.

Solution:

The log4j. properties file must be placed under the web-INF/class directory and placed under the src directory in eclipse. The file will be automatically copied to the class directory.

The content in the file is as follows:

Log4j. rootlogger = warn, console

Log4j. appender. Console = org. Apache. log4j. leleappender
Log4j. appender. Console. layout = org. Apache. log4j. patternlayout
Log4j. appender. Console. layout. conversionpattern = (% r ms) [% T] %-5 p: % C # % m % x: % m % N

Log4j.logger.com. genuitec. Eclipse. sqlexplorer = debug
Log4j.logger.org. Apache = warn
Log4j.logger.org. hibernate = warn