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Specify what and how to validate

Here is an example for SimpleAction-validation.xml:

Code Block
xml
xml
<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0//EN"
        "http://www.opensymphony.com/xwork/xwork-validator-1.0.dtd">
<validators>
    <field name="bar">
        <field-validator type="required">
            <message>You must enter a value for bar.</message>
        </field-validator>
        <field-validator type="int">
            <param name="min">6</param>
            <param name="max">10</param>
            <message>bar must be between ${min} and ${max}, current value is ${bar}.</message>
        </field-validator>
    </field>
    <field name="date">
        <field-validator type="date">
            <param name="min">12/22/2002</param>
            <param name="max">12/25/2002</param>
            <message>The date must be between 12-22-2002 and 12-25-2002.</message>
        </field-validator>
    </field>
    <field name="foo">
        <field-validator type="int">
            <param name="min">0</param>
            <param name="max">100</param>
            <message key="foo.range">Could not find foo.range!</message>
        </field-validator>
    </field>
    <validator type="expression">
        <param name="expression">foo > bar</param>
        <message>Foo must be greater than Bar. Foo = ${foo}, Bar = ${bar}.</message>
    </validator>
</validators>