java.lang.ClassNotFoundException: org.apache.commons.collections.FastHashMap

zhanghong

　　七月 26, 2017 1:52:15 上午 org.apache.catalina.core.StandardWrapperValve invoke
　　严重: Servlet.service() for servlet [com.itheima.register.RegisterServlet] in context with path [/WEB15] threw exception [Servlet execution threw an exception] with root cause
　　java.lang.ClassNotFoundException: org.apache.commons.collections.FastHashMap
　　at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)
　　at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
　　at org.apache.commons.beanutils.PropertyUtilsBean.getPropertyDescriptor(PropertyUtilsBean.java:963)
　　at org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:935)
　　at org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:823)
　　at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:431)
　　at com.itheima.register.RegisterServlet.doGet(RegisterServlet.java:53)
　　at com.itheima.register.RegisterServlet.doPost(RegisterServlet.java:79)
　　at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
　　at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
　　at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
　　at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
　　at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
　　at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
　　at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
　　at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
　　at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
　　at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
　　at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
　　at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
　　at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
　　at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
　　at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
　　at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
　　at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
　　at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
　　at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
　　at java.lang.Thread.run(Unknown Source)
　　解决办法：
　　1 除了导入包Apache Commons Collections 4.1，还需要导入包Apache Commons Collections 3.2.2
　　2 路径/WebContent/WEB-INF/lib/，还需要放入commons-collections-3.2.2.jar