<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>spring-boot-demo-session</title>
</head>
<body>
<h1 th:text="${message}" style="background-color: red"></h1>

<button><a th:href="@{'/page/doLogin'}">登录</a></button>
</body>
</html>