Thymeleaf - How to compare string with request parameter in html in Thymeleaf tag “th:if”?

Question

How to compare string with request parameter in html in Thymeleaf tag \"th:if\" ? right now i am using this

Answer 1

It's not working because param.error is array of strings. You must retrieve first element of array (param.error[0]) to get first value of parameter (see documentation). Besides that you can access request parameter via Web context object method #httpServletRequest.getParameter that returns first value when parameter is multivalued (see documentation).

1. Usage of Web context namespaces for request attributes

2. Usage of Web context object