【毕设进行时】Struts2的输入校验

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN"
        "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">


<validators>
    
    <!-- 必填校验 -->
    <field name="字段名">
        <field-validator type="required" [short-circuit="true"]>
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 必填字符串校验 -->
    <field name="字段名">
        <field-validator type="requiredstring" [short-circuit="true"]>
            <param name="trim">默认为true</param>  <!-- 是否在检验前截断被检验属性值前后的空白 -->
            <message key="没有填写密码！" />
        </field-validator>        
    </field>
    
    <!-- 整数校验 -->
    <field name="字段名">
        <field-validator type="int" [short-circuit="true"]>
            <param name="min">最小值</param>
            <param name="max">最大值</param>
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 日期校验 -->
    <field name="字段名">
        <field-validator type="date" [short-circuit="true"]>
            <param name="min">1990-01-01</param>
            <param name="max">2010-01-01</param>
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 表达式校验 -->
    <validator type="expression" [short-circuit="true"]>
            <param name="expression">逻辑表达式</param>  <!-- 返回false则校验失败，输出信息 -->
            <message>错误提示信息</message>
    </validator>
    
    <!-- 字段表达式校验 -->
    <field name="字段名">
        <field-validator type="fieldexpression" [short-circuit="true"]>
            <param name="expression">逻辑表达式</param>  <!-- 返回false则校验失败，输出信息 -->
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 邮件地址校验 -->
    <field name="字段名">
        <field-validator type="email" [short-circuit="true"]>
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 网址校验 -->
    <field name="字段名">
        <field-validator type="url" [short-circuit="true"]>
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- Visitor校验：校验Action类里的非基本属性 -->
    <field name="字段名">
        <field-validator type="visitor" [short-circuit="true"]>
            <param name="context">字段名Context</param>  <!-- 调用Action-字段名Context-validation.xml -->
            <param name="appendPrefix">true</param>  <!-- 指定检验失败后提示信息是否添加下面的前缀 -->
            <message>提示信息前缀</message>
        </field-validator>
    </field>
    
    <!-- 转换校验 -->
    <field name="字段名">
        <field-validator type="conversion" [short-circuit="true"]>
            <param name="repopulateField">true</param>  <!-- 转换失败后，返回输入页仍保留原来的错误输入 -->
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 字符串长度校验 -->
    <field name="字段名">
        <field-validator type="stringlength" [short-circuit="true"]>
            <param name="minLength">最小值</param>
            <param name="maxLength">最大值</param>
            <param name="trim">默认为true</param>
            <message>错误提示信息</message>
        </field-validator>
    </field>
    
    <!-- 正则表达式校验 -->
    <field name="字段名">
        <field-validator type="regex" [short-circuit="true"]>
            <param name="expression">正则表达式</param>
            <param name="caseSensitive">默认为true</param>  <!-- 是否区分大小写 -->
            <message>错误提示信息</message>
        </field-validator>    
    </field>    

</validators>