加入
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
如果有權限就顯示isAuthenticated
<div sec:authorize="isAuthenticated()"><a href="/user/edit" class="btn btn-primary btn-sm">添加用戶</a></div>
如果有hasAuthority('user:add')權限就顯示
<div sec:authorize="hasAuthority('user:add')" id="idadd"><a href="/user/edit" class="btn btn-primary btn-sm">添加用戶2</a></div>