Idea2019 writes a web project, puts the JSP page under WEB-INF, imports the css file, the path is ok, but this problem occurs
After various queries, I finally found that if the jsp page is under WEB-INF, then the css file cannot be placed under WEB-INF, and it can’t be placed under the static asking price folder under the web root directory, only for
specific reasons. I don't know why. Welcome to explain