struts-sandbox/mailreader-course/struts/lab-1-4-src/webapp/WEB-INF/Logon-validate.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE form-validation PUBLIC
        "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.2.0//EN"
        "http://jakarta.apache.org/commons/dtds/validator_1_2_0.dtd">

<form-validation>
    <formset>
        <form name="LogonForm">

            <field  property="username"
                    depends="required">
                <arg    key="username.label"/>
            </field>

            <field  property="password"
                    depends="required, minlength,maxlength">
                <arg   key="password.label"/>
                <arg    key="${var:minlength}"
                        name="minlength"
                        resource="false"/>
                <arg    key="${var:maxlength}"
                        name="maxlength"
                        resource="false"/>

                <var>
                    <var-name>
                        maxlength
                    </var-name>
                    <var-value>
                        16
                    </var-value>
                </var>
                <var>
                    <var-name>
                        minlength
                    </var-name>
                    <var-value>
                        3
                    </var-value>
                </var>
            </field>
        </form>
    </formset>
</form-validation>