tomcat 报错

tomcat 报错不明显的时候 可以在 WEB-INF/classes 添加 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