Spring Boot: Controllers

The component where you map routes to the model and view

In Spring, a controller class starts with the annotation @Controller right before the start of the class, like this:

@Controller
public class UserInterfaceApplication {

The import that defines @Controller is:

import org.springframework.stereotype.Controller;

Inside, you’ll see methods such as this one for using Mustache templates:

@RequestMapping("/index.html")
    public String index(final Map<String, Object> map) throws HttpAction {
        map.put("fname", "Phill");
        map.put("lname", "Conrad");
        return "index";
    }

Or this one for using Freemarker templates:

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