注册时后台验证UserAction-regUser-validation.xml

<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.2//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">


<validators>
<field name="ns_1.name">
<field-validator type="requiredstring">
<message>用户名不能为空</message>
</field-validator>
<field-validator type="stringlength">
<param name="trim">true</param>
<param name="maxLength">10</param>
<message>用户名不能多于10位</message>
</field-validator>
</field>

<field name="ns_1.pad">
<field-validator type="requiredstring">
<message>密码不能为空</message>
</field-validator>
<field-validator type="stringlength">
<param name="trim">true</param>
<param name="minLenth">6</param>
<param name="maxLenth">10</param>
<message>密码必须为6-10位</message>
</field-validator>
<field-validator type="regex">
<param name="regex">^[A-Za-z0-9]+$</param>
<message>密码必须为数字或字母</message>
</field-validator>
</field>

<field name="twoPad">
<field-validator type="fieldexpression">
<param name="expression"><![CDATA[ns_1.pad==twoPad]]></param>
<message>两次密码不一致</message>
</field-validator>
</field>
</validators>