I would like to use GSP views instead of JSP/JSTL views in a plain old Spring MVC application. I have added a groovy.servlet.TemplateServlet to web.xml like this:
Today GSP for Spring Boot was just released. This provides the ability to use GSP instead of JSP in a regular Spring web application. You can see an example here: https://github.com/grails/grails-boot/blob/master/sample-apps/gsp/script/templates/index.gsp