int 整数;
double 实数;
date 日期;
expression 两数的关系比较;
email Email地址;
url web地址;
visitor 访问;
conversion 转换;
regex 正则表达式验证;
required 是否为空;
requiredstring 必须字符;
stringlength 输入字符长度限制;
<validators>
- <field name="user.userName">
- <!-- 验证字符串不能为空 -->
- <field-validator type="requiredstring">
- <!-- 去空格 -->
- <param name="trim">true</param>
- <!-- 错误提示信息 -->
- <message>用户名不能为空</message>
- </field-validator>
- <!-- 验证字符串长度 -->
- <field-validator type="stringlength">
- <param name="minLength">2</param>
- <param name="maxLength">20</param>
- <message>用户名长度应在2到18个字符间</message>
- </field-validator>
- </field>
- <field name="user.password">
- <field-validator type="requiredstring">
- <param name="trim">true</param>
- <message>密码不能为空</message>
- </field-validator>
- <field-validator type="stringlength">
- <param name="minLength">6</param>
- <param name="maxLength">18</param>
- <message>密码长度应在6到18个字符之间</message>
- </field-validator>
- </field>
- <field name="user.age">
- <field-validator type="int">
- <param name="min">1</param>
- <param name="max">150</param>
- <message>年龄应在1到150之间</message>
- </field-validator>
- </field>
- <!-- 验证字符串为日期类型 -->
- <field name="user.birthday">
- <field-validator type="date">
- <param name="min">1900-01-01</param>
- <param name="max">2008-10-16</param>
- <message>出生日期应在1900-01-01到2008-10-16</message>
- </field-validator>
- </field>
- </validators>
struts2校验框架预设的类在包com.opensymphony.xwork2.validator.validators中,同一目录下的default.xml中定义了field-validator中type的名称和对应的处理类。
default.xml
<!-- START SNIPPET: validators-default -->
<validators>
<!-- 必须输入 -->
<validator name="required" class="com.opensymphony.xwork2.validator.validators.RequiredFieldValidator"/>
<!-- 必须输入字符串 -->
<validator name="requiredstring" class="com.opensymphony.xwork2.validator.validators.RequiredStringValidator"/>
<!-- 校验int型 -->
<validator name="int" class="com.opensymphony.xwork2.validator.validators.IntRangeFieldValidator"/>
<validator name="double" class="com.opensymphony.xwork2.validator.validators.DoubleRangeFieldValidator"/>
<validator name="date" class="com.opensymphony.xwork2.validator.validators.DateRangeFieldValidator"/>
<!-- -->
<validator name="expression" class="com.opensymphony.xwork2.validator.validators.ExpressionValidator"/>
<!-- -->
<validator name="fieldexpression" class="com.opensymphony.xwork2.validator.validators.FieldExpressionValidator"/>
<validator name="email" class="com.opensymphony.xwork2.validator.validators.EmailValidator"/>
<validator name="url" class="com.opensymphony.xwork2.validator.validators.URLValidator"/>
<!-- -->
<validator name="visitor" class="com.opensymphony.xwork2.validator.validators.VisitorFieldValidator"/>
<!-- -->
<validator name="conversion" class="com.opensymphony.xwork2.validator.validators.ConversionErrorFieldValidator"/>
<validator name="stringlength" class="com.opensymphony.xwork2.validator.validators.StringLengthFieldValidator"/>
<validator name="regex" class="com.opensymphony.xwork2.validator.validators.RegexFieldValidator"/>
</validators>
<!-- END SNIPPET: validators-default -->