在使用的时候后台报错。这个怎么解决呢。。错误如下
com.alibaba.excel.exception.ExcelAnalysisException: java.lang.NoClassDefFoundError: org/ehcache/config/ResourceUnit
at com.alibaba.excel.analysis.ExcelAnalyserImpl.(ExcelAnalyserImpl.java:51)
at com.alibaba.excel.ExcelReader.(ExcelReader.java:143)
at com.alibaba.excel.read.builder.ExcelReaderBuilder.build(ExcelReaderBuilder.java:270)
at com.jyd.serviceModule.taskinfo.controller.TaskInfoController.uploadExcelNew(TaskInfoController.java:294)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.jfinal.aop.Invocation.invoke(Invocation.java:75)
at com.jfinal.ext.interceptor.SessionInViewInterceptor.intercept(SessionInViewInterceptor.java:44)
at com.jfinal.aop.Invocation.invoke(Invocation.java:69)
at com.jyd.interceptors.LoginInterceptor.intercept(LoginInterceptor.java:63)
at com.jfinal.aop.Invocation.invoke(Invocation.java:69)
at com.jfinal.core.ActionHandler.handle(ActionHandler.java:81)
at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:89)
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:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: org/ehcache/config/ResourceUnit
at com.alibaba.excel.cache.selector.SimpleReadCacheSelector.readCache(SimpleReadCacheSelector.java:80)
at com.alibaba.excel.analysis.v07.XlsxSaxAnalyser.defaultReadCache(XlsxSaxAnalyser.java:93)
at com.alibaba.excel.analysis.v07.XlsxSaxAnalyser.(XlsxSaxAnalyser.java:67)
at com.alibaba.excel.analysis.ExcelAnalyserImpl.choiceExcelExecutor(ExcelAnalyserImpl.java:92)
at com.alibaba.excel.analysis.ExcelAnalyserImpl.(ExcelAnalyserImpl.java:45)
... 33 more
Caused by: java.lang.ClassNotFoundException: org.ehcache.config.ResourceUnit
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1364)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1185)
... 38 more