Struts - Validator 集成注意事项

• 在struts主配置文件struts-config.xml中加入Validator plug-in
<plug-in classname="org.apache.struts.validator.ValidatorPlugIn"><set-property property="pathnames" value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"></plug-in>
• 改变form对象所继承的父类为ValidatorForm或其子类
Once you have configured the Validator Plug-In, so that it can load your Validator Resources you just have to extend org.apache.struts.validator.action.ValidatorForm instead of org.apache.struts.action.ActionForm
• validator的前台javascript验证默认采用commons-validator中的定义
Starting in Struts 1.2.0 the default javascript definitions have been consolidated to commons-validator. The default can be overridden by supplying a element with a CDATA section, just as in struts 1.1.
如 <validator name="mask" classname="org.apache.struts.validator.FieldChecks" method="validateMask" methodParams="java.lang.Object, org.apache.commons.validator.ValidatorAction, org.apache.commons.validator.Field, org.apache.struts.action.ActionMessages, javax.servlet.http.HttpServletRequest" depends="" msg="errors.invalid"> <javascript><![CDATA[ function validateMask(form) { return true } ]]> </javascript> </validator>
• field定义中的msg,arg子元素中的属性name指的是对应验证器名称:mask,...