错误信息:
org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/dbutils/ResultSetHandler
错误原因:有包没有加载到.重新部署项目即可.