请问各位如何在controller中获取application-context.xml的bean

Question

这是webxml中的配置 <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:application-context.xml </param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>example</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>example</servlet-name> <url-pattern>/api/*</url-pattern> </servlet-mapping> 如何通过controller中获取bean，如果使用ClassPathApplicationContext获取会报错，请问该怎么办啊？各位大哥谁能帮一下啊