How to print a specific actionerror message with Struts2 validation?

Question

When using Struts2 validation, when you put the <s:actionerror> tag in your JSP, the default behavior is to display all the action errors at that point in the page.

Is there a way to display only specific error messages at that point? For example, in the case of fielderror one only needs to add the fieldName attribute. Is there an attribute of actionerror that accomplishes similar behavior?

Answer 1

For field specific error the function is : hasFieldErrors()

You can use it like this:

<s:if test="hasFieldErrors()">
    <div class="fieldErrors">
        <!-- iterate through the fields errors, customize what you need -->
        <s:iterator value="fieldErrors">
            <s:property value="key"/>:
            <s:iterator value="value">
                <s:property/>
            </s:iterator>
        </s:iterator>
    </div>
</s:if>

References:

• Struts 2 documentation.

Interesting reading:

• Why are my actionErrors and fieldErrors displayed with braces []?
• https://www.mkyong.com/struts2/working-with-struts-2-theme-template/