Environment: IDEA2017.2.6, Tomcat8.5, Maven3.5
First, create a Maven project, [File] -> [New] -> [Project ...]
Next:
Then: test your Web project is not a project, and if so webapp-> New JSP option is the option, not the bottom right corner, then click on the [Log] import Changes
Detection: Click the Tools menu bar (top left corner) [File] -> [Project Structure ...] -> [Modules] that there is OK to Web
Next, start the project:
, Configured, and run the project
Project Results Figure:
Reference blog: