Ternary expression format" '事件' ? '事件' : '事件' "
Case:
th:action=" '*{id}==null' ? '@{/admin/types}' : '@{/admin/types/{id}(id=*{id})' " class="ui form">
Problems:
th:action=" '*{id}==null' ? '/admin/types' : '/admin/types/{id}(id=*{id})' " class="ui form">