How can I do the same with thymeleaf in Spring Boot? I just want to set a default attribute for the page if the one is missing Here is an example how I do this in JSP.

<c:set var="sortField" value="${(empty requestScope.sortField) ? 'categpry' : requestScope.sortField}"/>

CodePudding user response：

Considering that you need this into your html template, then you can declare a variable as you want with the following expression

<div id="firstDiv" th:with="sortField= (${sortField} != null) ? ${sortField} : 'category'" >

...here you can access the var sortField

</div>

but as indicated the variable will be available only inside this block of html.