Tomcat部署项目启动报错. start: org.apache.catalina.LifecycleException: Failed to start component

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.
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