WEB-INF/classes目录下新建一个文件叫logging.properties
handlers = org.apache.juli.FileHandler, java.util.logging.ConsoleHandler
############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################
org.apache.juli.FileHandler.level = FINE
org.apache.juli.FileHandler.directory = ${catalina.base}/logs
org.apache.juli.FileHandler.prefix = error-debug.
java.util.logging.ConsoleHandler.level = FINE
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
我们再启动tomcat时，就会在logs目录下生成一个更详细的日志error-debug.xxx.log
查看运行日志
、先切换到：cd tomcat/logs 2、tail -f catalina.out 3、这样运行时就可以实时查看运行日志了
原文：http://www.cnblogs.com/wujixing/p/5830504.html