org.springframework.beans.factory.BeanCreationException: Scope 'request' is not active for the current thread

如果你要使用request or session scope bean，那么在web.xml里需要加上下面这段设置：

 <listener>
      <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
 </listener>

 否则就会出现org.springframework.beans.factory.BeanCreationException: Scope 'request' is not active for the current thread