ERROR org.springframework.web.servlet.DispatcherServlet - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.handler.MappedInterceptor#1': Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.handler.MappedInterceptor]: Constructor threw exception; nested exception is org.springframework.web.util.pattern.PatternParseException: No more pattern data allowed after {*...} or ** pattern element

    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**/"/>
            <mvc:exclude-mapping path="/"/>
            <ref bean="firstInterceptor"></ref>
        </mvc:interceptor>
    </mvc:interceptors>

 * 此处path="/**/"错误，改为"/**"。此报错完全看不懂