A concept
Two principles
Three use
File 1) set up a website page resource storage folder
Need to mark pages stored in the project files inside the folder, otherwise not visit the project page
2) home page settings
Set the home page in the web.xml file
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
3) home storage location
Do not put web-INF below, or home settings fail
4)index.html和index.jsp
The former do not need to configure web.xml home page, which requires
