我有一个简单的类,其中一个属性是字符串数组。根据这个文档,对数组、集合等使用@Valid将递归地验证数组/集合中的每个元素。
@Valid
@Pattern(regexp="^[_ A-Za-z0-9]+$")
public String[] defaultAppAdminRoles;
属性上面的注解会生成以下异常:
Exception in thread "main" javax.validation.UnexpectedTypeException: No validator could be found for type java.lang.String[]. See: @Pattern at public java.lang.String[] com.hm.vigil.platform.ops.model.Application.defaultAppAdminRoles
at org.apache.bval.jsr303.AnnotationProcessor.checkOneType(AnnotationProcessor.java:326)
at org.apache.bval.jsr303.AnnotationProcessor.getConstraintValidator(AnnotationProcessor.java:301)
at org.apache.bval.jsr303.AnnotationProcessor.applyConstraint(AnnotationProcessor.java:241)
at org.apache.bval.jsr303.AnnotationProcessor.processAnnotation(AnnotationProcessor.java:149)
at org.apache.bval.jsr303.AnnotationProcessor.processAnnotations(AnnotationProcessor.java:90)
at org.apache.bval.jsr303.Jsr303MetaBeanFactory.processClass(Jsr303MetaBeanFactory.java:134)
at org.apache.bval.jsr303.Jsr303MetaBeanFactory.buildMetaBean(Jsr303MetaBeanFactory.java:95)
at org.apache.bval.MetaBeanBuilder.buildForClass(MetaBeanBuilder.java:131)
at org.apache.bval.MetaBeanManager.findForClass(MetaBeanManager.java:102)
at org.apache.bval.jsr303.ClassValidator.validate(ClassValidator.java:140)
at com.hm.vigil.platform.commons.AbstractValidatable.isValid(AbstractValidatable.java:33)
at com.hm.vigil.platform.ops.model.Application.main(Application.java:54)
我正在使用Apache BVal作为验证提供程序。
问题是,上述方法是否正确?
如果不正确,那么使用bean验证验证数组/集合的正确方法是什么?
如果它是正确的,那么这是Apache BVal的某些限制吗?