spring项目启动报错BeanFactory not initialized or already closed

spring项目启动的时候报如下错误：

java.lang.IllegalStateException: BeanFactory not initialized or already closed - call 'refresh' before accessing beans via the ApplicationContext
at org.springframework.context.support.AbstractRefreshableApplicationContext.getBeanFactory(AbstractRefreshableApplicationContext.java:171)
at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1090)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1064)
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1010)
at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:559)
at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:143)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4011)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4615)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4512)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

我的解决方法：在web.xml中加入如下的就可以正常启动了

		contextConfigLocation
		
        classpath*:/applicationContext.xml
		
	

也不知道包这个错误是什么原因，反正加了这个就可以了，如果大家有新的好的方法，希望能跟我分享下，这里先谢谢了