More than one fragment with the name [spring_web] was found
这个问题首先是Failed to start component [StandardEngine[Catalina].StandardHost[localhost]，然后通过寻找问题，找到了caused by More than one fragment with the name [spring_web] was found,然后去网上搜索More than one fragment with the name [spring_web] was found产生这个问题的原因。有一个大佬的网站：https://www.cnblogs.com/bobkingblog/p/10899545.html在这里标明了如何形成的。
总结就是
在web.xml加一个标签：<absolute-ordering />
只加这一行就可以了