利用ServletContextListener 获取spring上下文

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import javax.servlet.ServletContextEvent;import javax.servlet.ServletContextListener;import org.springframework.context.ApplicationContext;import org.springframework.web.context.support.WebApplicationContextUtils;public class SpringContextListener implements ServletContextListener {private ApplicationContext applicationContext;public void contextDestroyed(ServletContextEvent arg0) {// TODO Auto-generated method stub}public void contextInitialized(ServletContextEvent event) {applicationContext = WebApplicationContextUtils.getWebApplicationContext(event.getServletContext()); //获取spring上下文//applicationContext.getBean("userDao");}}

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web.xml

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<listener>    <listener-class>com.SpringContextListener</listener-class>  </listener>

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