RegisterAction-validation.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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="userid">

        <field-validator type="requiredstring">
            <param name="trim">true</param>


            <message>Please input userid</message>
        </field-validator>

    </field>

    <field name="userpassword">

        <field-validator type="requiredstring">

            <param name="trim">true</param>


            <message>Please input password</message>
        </field-validator>


        <field-validator type="stringlength">
            <param name="minLength">6</param>
            <param name="maxLength">20</param>
            <message> The password letter length is 6-20  </message>
        </field-validator>

        <field-validator type="regex">
            <param name="regexExpression">(.*)?d+(.*)?</param>
            <!-- <param name ="expression"><![CDATA[(w{4,25})]]></param> -->
            <message> lack digit   </message>
        </field-validator>

        <field-validator type="regex">
            <param name="regexExpression">(.*)?[a-z]+(.*)?</param>
            <!-- <param name ="expression"><![CDATA[(w{4,25})]]></param> -->
            <message> lack little letter   </message>
        </field-validator>
        
        <field-validator type="regex">
            <param name="regexExpression">(.*)?[A-Z]+(.*)?</param>
            <!-- <param name ="expression"><![CDATA[(w{4,25})]]></param> -->
            <message> lack big letter   </message>
        </field-validator>
    </field>
</validators>
  
  
  
  
  

验证密码 规则：

长度：6-10

大写字母，小写字母，数字至少各出现一次。

正则：

/d+    数字至少一次

[a-z]+ 小写字母至少一次

[A-Z]+  大写字母至少一次

(.*)?     .代表通配符 * 代表出现0次或多次， ? 代表有或者无