spring容器找不到类的可能

1.application.xml里面没有添加扫描

（1）dao层扫描

(2)service层扫描

2.springmvc配置文件配置扫描controller层

>      base-package="com.logistics.controller"/>  
>     id="internalResourceViewResolver"
> >
>     
>        

3.web.xml文件的配置

org.springframework.web.context.ContextLoaderListener contextConfigLocation classpath:applicationContext.xml

springmvc
			org.springframework.web.servlet.DispatcherServlet

  contextConfigLocation
  classpath:springmvc.xml

1   
   

	
		>     springmvc
		>     /   

4.相对应的jar包未导入