Disclaimer: This article is a blogger original article, shall not be reproduced without the bloggers allowed. https://blog.csdn.net/God_V/article/details/80837773
The javaweb project packaged into war
Inside the webapps tomcat war copied to the server
Web.xml to your project's WEB-INF folder inside,
在<welcome-file-list>节点之间加一个<welcome-file>节点，这就是你的默认首页，如<welcome-file>index.jsp<welcome-file>
In web.xml under tomcat conf directory should also be added.
打开web.xml在里面找到<welcome-file-list>,然后加上<welcome-file>index.jsp<welcome-file>
In server.xml in the tomcat directory
，找到<Connector>节点,把里面的port="8080"，改成"80"。找到<host>节点，把它的name="localhost"
改成你的域名,如www.aa.com。
Then the host node inside, plus one child, says:
<Context path="" docBase="" reloadable="true" />, do not control path, the path inside docBase direct path into your project
I remember 80 ports open