zhuoSir1998的博客

/** * 银行卡校验 */@Target({METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER})@Retention(RUNTIME)@Documented@Constraint(validatedBy = {StringChecker.class, ObjectChecker.class})public @interface BankCard { String message() default "银行卡号格式错误";

1. 开闭原则（Open Closed Principle，OCP）软件实体应当对扩展开放，对修改关闭（Software entities should be open for extension，but closed for modification）合成复用原则、里氏替换原则相辅相成，都是开闭原则的具体实现规范扩展新类而不是修改旧类2. 里氏替换原则（Liskov Substitution Principle，LSP）继承必须确保超类所拥有的性质在子类中仍然成立（Inheritance