tomcat 启动失败：SEVERE: Context [] startup failed due to previous errors

查看pox.xml 有spring-web依赖

查看tomcat日志： ContextLoaderListener not find

由于IDEA 无法自动将MAVEN的依赖包直接加载，需要在project structure 中手动添加spring - web 包到lib 下

IDEA +maven+ ContextLoaderListener not find