先附上代码

web.xml

页面：

ProductAction：

ProductDao：

ProductService：

applicationContext.xml：

struts.xml：

控制台输出：

严重: Exception sending context initialized event to listener instance of class [org.springframework.web.context.ContextLoaderListener]

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productService' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'productDao' while setting bean property 'productDao'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [cn.muke.ssh.service.ProductDao] for bean with name 'productDao' defined in class path resource [applicationContext.xml]; nested exception is java.lang.ClassNotFoundException: cn.muke.ssh.service.ProductDao

at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)

at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)

at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4770)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5236)

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

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:744)

at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1135)

at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1869)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

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)

Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [cn.muke.ssh.service.ProductDao] for bean with name 'productDao' defined in class path resource [applicationContext.xml]; nested exception is java.lang.ClassNotFoundException: cn.muke.ssh.service.ProductDao

at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1263)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:438)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)

at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)

... 28 more

Caused by: java.lang.ClassNotFoundException: cn.muke.ssh.service.ProductDao

at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1364)

at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1185)

at org.springframework.util.ClassUtils.forName(ClassUtils.java:258)

at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:415)

at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1284)

at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1255)

... 34 more

七月 14, 2019 12:53:28 上午 org.apache.catalina.core.StandardContext startInternal

严重: One or more listeners failed to start. Full details will be found in the appropriate container log file

七月 14, 2019 12:53:28 上午 org.apache.catalina.core.StandardContext startInternal

严重: Context [/ssh] startup failed due to previous errors

七月 14, 2019 12:53:28 上午 org.apache.catalina.core.ApplicationContext log

信息: Closing Spring root WebApplicationContext

七月 14, 2019 12:53:28 上午 org.apache.catalina.startup.HostConfig deployDirectory

信息: Deployment of web application directory [D:\Tomcat\webapps\ssh] has finished in [3,112] ms

七月 14, 2019 12:53:28 上午 org.apache.coyote.AbstractProtocol start

信息: Starting ProtocolHandler ["http-nio-8080"]

七月 14, 2019 12:53:28 上午 org.apache.coyote.AbstractProtocol start

信息: Starting ProtocolHandler ["ajp-nio-8009"]

七月 14, 2019 12:53:28 上午 org.apache.catalina.startup.Catalina start

信息: Server startup in 3735 ms

页面输出：

控制台最后输出：

七月 14, 2019 12:54:05 上午 org.apache.tomcat.util.http.parser.Cookie logInvalidHeader

信息: A cookie header was received [1561474792,1562239112] that contained an invalid cookie. That cookie will be ignored.Note: further occurrences of this error will be logged at DEBUG level.

烦请大家帮忙看下原因，谢谢