I set servlet mapping
<servlet>
<servlet-name>Site</servlet-name>
<servlet-class>com.demo.controller.App</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Site</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
there is also an index.jsp in the webapp directory
< hr > so that when I visit http://localhost:8080/, I will still go index.jsp
without triggering the doGet method of my default App controller
unless I casually write a directory such as http://localhost:8080/a/ will trigger
Why is this?