参考文章
https://www.jb51.net/article/123350.htm
添加页面管理功能（只能通过本地管理））
them. You will also need to set the passwords to something appropriate.
-->
<!--
<role rolename="tomcat"/>
<role rolename="role1"/>
<user username="tomcat" password="123456" roles="tomcat"/>
<user username="both" password="123456" roles="tomcat,role1"/>
<user username="role1" password="123456" roles="role1"/>
-->
<role rolename="manager-gui"/>
<user username="tomcat" password="123456" roles="manager-gui"/>
</tomcat-users>
本机登录
测试地址：
上传war包
http://localhost:8080/onlinestudy/videoMenu.html
原文：https://www.cnblogs.com/lvyunxiang/p/12950814.html