home.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Good Thymes Virtual Grocery</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <link rel="stylesheet" type="text/css" media="all"
          href="../../css/gtvg.css" th:href="@{/css/gtvg.css}" />
</head>
<body>
<p th:text="#{home.welcome}">Welcome to our grocery store!</p>
</body>
</html>



HomeController.java

@Controller
public class HomeController{

    @GetMapping("/home")
    public String process(){
        return "home";
    }
}


home_es.properties

home.welcome=¡Bienvenido a nuestra tienda de comestibles!



GeneralConfig.java

@Configuration
public class GeneralConfig {
    @Bean
    public ResourceBundleMessageSource messageSource() {
        ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
        messageSource.setBasename("home");
        return messageSource;
    }
}