validation.xml中配置如下： 

<form name="loginform"> 
<field property="username" depends="required"> 
<msg name="required" key="error.username.null"/> 
</field> 
<field property="password" depends="required"> 
<msg name="required" key="error.password.null"/> 
</field> 
</form>

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学习，接分！

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探讨

不喜欢用Struts的标签，都是直接用jstl。 
帮顶吧


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位置写错了 ？？

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<html:javascript formName="loginform" dynamicJavascript="true" staticJavascript="true"/>
再给你个参考
XML code
<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE form-validation PUBLIC
          "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN"
          "http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd">

<form-validation>

<!--
     This is a minimal Validator form file with a couple of examples.
-->

    <global>

        <!-- An example global constant
        <constant>
            <constant-name>postalCode</constant-name>
            <constant-value>^\d{5}\d*$</constant-value>
        </constant>
        end example-->

    </global>

    <formset>

        <!-- An example form -->
        <form name="logonForm">
            <field
                property="username"
                depends="require