idea里启动项目，总报java.lang.ClassNotFoundExcep?报错

2016-07-06 20:25:36.222 ERROR 28034 --- [  restartedMain] o.s.boot.SpringApplication              handleRunFailure 821 : Application startup failed

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.springboot.Sample2SpringApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardConfiguration
	at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:519)
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:278)
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:232)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:168)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:321)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98)
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:678)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:520)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:760)
	at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:360)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
	at com.springboot.Sample2SpringApplication.main(Sample2SpringApplication.java:295)
	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:497)
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardConfiguration
	at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163)
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:292)
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:232)
	at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:510)
	... 19 common frames omitted
Caused by: java.lang.NoClassDefFoundError: javax/servlet/Servlet
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
	at java.lang.Class.getDeclaredMethods(Class.java:1975)
	at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152)
	... 22 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.servlet.Servlet
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 26 common frames omitted

这个包是有的，我也清理过缓存了，还不行

并且这个项目在eclipse里启动就没问题