package io.github.web.springmvc;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class GreetingController {

    @RequestMapping("/greeting")
    public ModelAndView greeting() {

        return new ModelAndView("greeting_template").addObject("name", "World");
    }
}

package io.github.web.springmvc;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class GreetingController {

    @RequestMapping("/")
    public ModelAndView greeting() {

        return new ModelAndView("greeting_template").addObject("name", "World");
    }
}

Change request mapping in spring-mvc-hello-world example