nested exception is java.lang.NoClassDefFoundError

来源：4-9 店铺注册之前端设计

慕粉1556544580

2021-01-05

类型异常报告

消息 Servlet[spring-dispatcher]的Servlet.init（）引发异常

描述服务器遇到一个意外的情况，阻止它完成请求。

例外情况

javax.servlet.ServletException: Servlet[spring-dispatcher]的Servlet.init（）引发异常
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:544)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:616)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol $C o n n e c t i o n H a n d l e r . p r o c e s s (A b s t r a c t P r o t o c o l . j a v a : 831) o r g . a p a c h e . t o m c a t . u t i l . n e t . N i o E n d p o i n t$ SocketProcessor.doRun(NioEndpoint.java:1634)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor $W o r k e r . r u n (U n k n o w n S o u r c e) o r g . a p a c h e . t o m c a t . u t i l . t h r e a d s . T a s k T h r e a d$ WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Unknown Source)
根本原因。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘shopDao.ShopDao’ defined in file [F:\eclipse.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\o2o\WEB-INF\classes\com\imooc\o2o\dao\shopDao$ShopDao.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: Shop
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778)
根本原因。

java.lang.ClassNotFoundException: Shop
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1358)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1180)
图片描述
4-9前端sui-Mobile那报错，网上自己找了找答案：https://blog.csdn.net/weixin_44943631/article/details/99845098
我写的也没错