The difference between Url-pattern configured as "/" and "/*" in MVC

First, everyone knows that "/*" can match all URLs, including those with extensions , which are generally used only on filters .

and "/" many people understand that can not intercept with the extension, this understanding is wrong! It can also block access to static resources such as ". js", ". css", ". png".

Looking at the official documentation, it is the default servlet for Tomcat, and will walk the servlet when other url-pattern are not matched. It can handle HTTP cache requests , media (audio/video) data streams , and files to download resumes , in addition to handling static resources . So if "/" is configured in our project, it will overwrite the default servlet in Tomcat.

Ref: 62883466

The difference between Url-pattern configured as "/" and "/*" in MVC