IDEA 配置xml或者使用webservlet注解之后运行项目出现Artifact OrderSystem1:war exploded: Error during artifact deployment. See server log for details.

IDEA
配置xml或者使用webservlet注解之后运行项目出现Artifact OrderSystem1:war exploded: Error during artifact deployment. See server log for details.
如果去掉这些东西就能正常启动
求大神帮解决，几个小时了毫无头绪a
这是web.xml

启动日志太少了，web.xml怎么全部注释了？

同问，如果把那些注释删了，意义何在呢