求助java.lang.ClassNotFoundException: org.jfree.data.DefaultCategoryDataset
2013-10-12 14:20:33 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet action threw exception
java.lang.ClassNotFoundException: org.jfree.data.DefaultCategoryDataset
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getDeclaredMethods(Class.java:1791)
at java.beans.Introspector$1.run(Introspector.java:1272)
at java.security.AccessController.doPrivileged(Native Method)
at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1270)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1136)
at java.beans.Introspector.getBeanInfo(Introspector.java:387)
at java.beans.Introspector.getBeanInfo(Introspector.java:222)
at java.beans.Introspector.getBeanInfo(Introspector.java:208)
at com.kenoah.base.util.BeanUtil.searchPropertyDescriptors(BeanUtil.java:337)
at com.kenoah.base.util.BeanUtil.getPropertyDescriptors(BeanUtil.java:322)
at com.kenoah.base.util.BeanUtil.setProperties(BeanUtil.java:196)
at com.kenoah.base.util.BeanUtil.setProperties(BeanUtil.java:388)
at com.kenoah.base.action.factory.ActionFactory.getAction(ActionFactory.java:91)
at com.kenoah.base.action.factory.ActionFactory.getAction(ActionFactory.java:67)
at com.kenoah.base.controller.ServletController.service(ServletController.java:118)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
2013-10-12 14:21:05 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet action threw exception
java.lang.ClassNotFoundException: org.jfree.data.DefaultCategoryDataset
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.lo