Dynamic <s:form> action in Struts 2

Question

Is there a way of specifying a dynamic action attribute in the <s:form> tag in Struts 2? I want something like the below.

<c:set var="formAction" value="baseAction" />
<c:if test="${someCondition}">
     <c:set var="formAction" value="childAction" />Ac

<s:form method="post" action="${formAction}">
    <s:input....../>
    <s:select...../>
</s:form>

I know this can be achieved using JavaScript, but I want to avoid refactoring.

I have tried achieving this using scriptlets, but the issue is that Struts 2 tags doesn't take runtime attributes. I tried even with OGNL, but it didn't help either.

Answer 1

Use Struts2 tags to set values and check condition and then use OGNL to put action attribute.

<s:set var="formAction" value="'baseAction'" />
<s:if test="some_condition">
  <s:set var="formAction" value="'childAction'" />
</s:if>

<s:form method="post" action="%{#formAction}">
  <s:input....../>
  <s:select...../>
</s:form>