java.lang.NoClassDefFoundError: com/alibaba/druid/filter/Filter

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:195)

at com.jfinal.core.JFinalFilter.createJFinalConfig(JFinalFilter.java:100)

at com.jfinal.core.JFinalFilter.init(JFinalFilter.java:47)

at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)

at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)

at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)

at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4917)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5609)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)