Question

struts2 validation.xml需要在struts文件中配置么

Answer 1

我以前写过一次这个文件如下:
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.2//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd"> <validators> <field name="name"><!-- 要对哪个属性进行验证 --> <field-validator type="requiredstring"><!-- 验证规则 --> <message>姓名不能为空!</message><!-- 违反规则的提示 --> </field-validator> </field> <field name="age"> <field-validator type="required"> <message>年龄不能为空</message> </field-validator> <field-validator type="int"> <param name="min">1</param> <param name="max">200</param> <message >年龄必须在${min}和${max}之间</message> </field-validator> </field> </validators>

<field name="age">中age为控制层中的一个属性名,切具有setter和getter方法
<field-validator type="required">中required为验证规则,struts2有15种验证规则可以写
conversion validator
date validator 日期验证
double validator 浮点数验证
email validator 邮箱格式验证
expression validator
fieldexpression validator
int validator 整型验证
regex validator
required validator 不为空验证
requiredstring validator 字符串不为空验证
short validator 短整型验证
stringlength validator 字符串长度验证
url validator
visitor validator
conditionalvisitor validator
<message>姓名不能为空!</message>为违反验证规则的错误提示