web.xml中 
<context-param> 
<param-name>contextConfigLocation</param-name> 
<param-value>/WEB-INF/applicationContext.xml</param-value> 
</context-param> 
<listener> 
<listener-class> 
org.springframework.web.context.ContextLoaderListener 
</listener-class> 
</listener> 
总是报错,总提示是否注册了ContextLoaderPlugIn,在servletcontext中没有applicationContext(bean工厂)实例所对应得属性