项目运行，一值报找不到DelegatingFilterProxy类，

java.lang.ClassNotFoundException: org.springframework.web.filter.DelegatingFilterProxy

at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)

at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)

at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:512)

at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:493)

at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:119)

at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:264)

at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)

at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4590)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5233)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)

at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1702)

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 org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)

at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)

at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:482)

at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431)

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 org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)

at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)

at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)

at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)

at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)

at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)

at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)

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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:324)

at sun.rmi.transport.Transport$1.run(Transport.java:200)

at sun.rmi.transport.Transport$1.run(Transport.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.Transport.serviceCall(Transport.java:196)

at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)