<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" th:with="lang=${#locale.language}" th:lang="${lang}">
<head>
    <meta charset="UTF-8">
    <title>i18n</title>
</head>
<body>
    <h1 th:text="'i18n Test'"></h1>

    <h4 th:text="#{language}"></h4>
    <h4 th:text="#{welcome('kim')}"></h4>

</body>
</html>