Question

java.lang.NoClassDefFoundError: org/springframework/core/MethodIntrospector$

javax.servlet.ServletException: Servlet.init() for servlet money threw exception
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)

root cause
java.lang.NoClassDefFoundError: org/springframework/core/MethodIntrospector$MetadataLookup
java.lang.Class.getDeclaredMethods0(Native Method)
java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
java.lang.Class.getDeclaredMethods(Class.java:1975)
org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:606)
org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:518)
org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:504)

...

Answer 1

我也遇到类四问题，显示缺少
org.springframework.core.io包，我就从原来的项目重新复制了所有的spring的包
然后把spring.web.release.xxxxx包放到tomcat/lib下
可能是你原来的包损坏了吧

Answer 2

有spring 的包没导吧。

Answer 3

spring的core包没有导入

Answer 4

1、可能是spring的core包没有导入，下载相应JAR包导入工程。
2、工程BUILDER错误，可以从新CLEAR以下，然后从新编译。