Validator框架问题

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE form-validation PUBLIC "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.0//EN" "http://jakarta.apache.org/commons/dtds/validator_1_0.dtd">
<form-validation>
  <global>
    <constant>
      <constant-name>name</constant-name>
      <constant-value>^\d{8}\d*$</constant-value>
    </constant>
  </global>
  <formset>
    <form name="adminIndexForm">
      <field property="t1">
      
        <arg0 key="label.phone"/>
        <var>
          <var-name>mask</var-name>
          <var-value>${name}</var-value>
        </var>
      </field>
    </form>
  </formset>
</form-validation>
这是我的Validator.xml,在jsp页面中用<html:errors/>
但每次提交后,却没有任何反应,请教各位大虾我错在哪里啊