struts2中的数据校验文件配置

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

<!DOCTYPE validators PUBLIC
  "-//OpenSymphony Group//XWork Validator 1.0//EN"
  "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
 
<!-- START SNIPPET: fieldValidatorsExample --> 
 
<validators>

对必填校验

<field name="requiredValidatorField">
<field-validator type="required">
<message >必填内容</message>
</field-validator>
</field>

必填字符串校验

<field name="requiredStringValidatorField">
<field-validator type="requiredstring">
<param name="trim">true</param>
<message  >字符串必填校验</message>
</field-validator>
</field>

对int类型的校验

<field name="integerValidatorField">
<field-validator type="int">
<param name="min">1</param>
<param name="max">10</param>
<message key="validate.integerValidatorField" />
</field-validator>
</field>

对日期的校验

<field name="dateValidatorField">
<field-validator type="date">
<param name="min">01/01/1990</param>
<param name="max">01/01/2000</param>
<message key="validate.dateValidatorField" />
</field-validator>
</field>

对email的校验

<field name="emailValidatorField">
<field-validator type="email">
<message key="validate.emailValidatorField" />
</field-validator>
</field>

对URL的校验

<field name="urlValidatorField">
<field-validator type="url">
<message key="validate.urlValidatorField" />
</field-validator>
</field>

对字符串长度的校验

<field name="stringLengthValidatorField">
<field-validator type="stringlength">
<param name="maxLength">4</param>
<param name="minLength">2</param>
<param name="trim">true</param>
<message key="validate.stringLengthValidatorField" />
</field-validator>
</field>

对正则表达式的校验

<field name="regexValidatorField">
<field-validator type="regex">
<param name="expression">.*\.txt</param>
<message key="validate.regexValidatorField" />
</field-validator>
</field>

对字段表达式的校验

<field name="fieldExpressionValidatorField">
<field-validator type="fieldexpression">
<param name="expression">(fieldExpressionValidatorField == requiredValidatorField)</param>
<message key="validate.fieldExpressionValidatorField" />
</field-validator>
</field>
</validators>