我创建了一个Struts2项目，我在其中使用了基于XML的验证。模型类RegistrationForm如下所示packagecom.projects;importcom.opensymphony.xwork2.ActionSupport;publicclassRegistrationFormimplementsSerializable{privatestaticfinallongserialVersionUID=1L;privateStringfname;privateStringlname;privateintnumbr;publicintgetNumbr(){returnnumbr