**我尝试了很多，但是代码无法正常工作，您能帮我吗** 总是显示验证消息，而不要去actoin类
<s:checkbox key="agreetc" name="acceptTermsCheckBox" fieldValue="acceptTermsCheckBox" id="acceptTermsCheckBox" />
<field name="agreetc">
<field-validator type="fieldexpression">
<param name="expression">agreetc</param>
<message>You must agree to the terms and conditions</message>
</field-validator>
</field>