BeanFactory not initialized or already closed

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

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

2、tomcat已經在運行了，清理tomcat後重啓下