spring-context-support的用途

 <bean id="freemarkerConfig"
  class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">

spring 集成freemarker一直报 

Caused by: java.lang.ClassNotFoundException: org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer

但spring-webmvc.jar中确实有这个类，导入spring下的*context.support*.jar后就能加载到类了。

http://www.cnblogs.com/guanghuiqq/archive/2012/11/15/2771080.html