BeanFactory not initialized or already closed

產生這個錯誤有兩個可能，
一、你沒有配置初始化文件,在web.xml中配置如下

<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
               classpath*:/applicationContext.xml
		</param-value>
</context-param>

二、tomcat已經在運行了，清理tomcat后重啟下