Created using IntelliJ and Spring Initializr plugin for Spring Boot web and Gradle. So, basic framework web configuration was generated by default.

Working with JSP

Step 1: Create index.jsp

If you want to work with JSPs, you need to create new directories under main:

• webapp
  • WEB-INF
    • jsp
      • index.jsp

Step 2: Edit (or create) application.properties

Add this to application.properties (you should create it inside resource directory if it isn't)

spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

Step 3: Add dependencies in build.gradle

You can copy these lines but you should use the packages versions that fits you. Check the links below and search what you want. However you've got to use providedCompile group instead of compile group

// https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-core
providedCompile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-core', version: '9.0.0.M22'
// https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api
providedCompile group: 'javax.servlet', name: 'javax.servlet-api', version: '3.0.1'

Step 4: Add proper controller

@Controller
public class MainController {
    @GetMapping("/")
    public String home(){
        return "index";
    }
}