Java 验证:验证对象中的对象
Java Validation: Validate an object within an object
我有两个对象:
public class CancelRequest{
@NotEmpty
private String id;
@NotNull
private BookingDetails;
}
预订详情对象:
public class BookingDetails{
@NotEmpty
private String bookingId;
}
我负责验证请求的 class 是 CancelRequestValidator
...
import javax.validation.Validator;
...
public class CancelRequestValidator{
...
public void check(CancelRequest request){
Set<ConstraintViolation<NorthAmericaCancelTripRequest>> violations =
validator.validate(request);
...
}
}
我如何执行验证?
CancelRequest request = new CancelRequest("id",new BookingDetails(""));
CancelValidator validator = new CancelValidator();
violations = validator.check(request);
违规行为中应该有一项指出 bookingId 不能为空,而是认为该对象有效。我需要以这种方式进行验证,因为我需要对此对象执行一些其他业务验证,因此我混合使用了 javax 和自定义验证。
谢谢
要执行嵌套 bean 验证,需要在嵌套对象上使用 @Valid
注解:
public class CancelRequest{
@NotEmpty
private String id;
@NotNull
@Valid
private BookingDetails;
}
正如 Eamon Scullion 所说,@Valid 将用于嵌套验证,但不要忘记将 @NotNull 用于对象,如日期,@NotBlank 用于文本字段,@NotEmpty 用于可迭代对象
public class CancelRequest{
@NotBlank
private String id;
@NotEmpty
private List<E> myList;
@NotNull
@Valid
private BookingDetails;
}
我有两个对象:
public class CancelRequest{
@NotEmpty
private String id;
@NotNull
private BookingDetails;
}
预订详情对象:
public class BookingDetails{
@NotEmpty
private String bookingId;
}
我负责验证请求的 class 是 CancelRequestValidator
...
import javax.validation.Validator;
...
public class CancelRequestValidator{
...
public void check(CancelRequest request){
Set<ConstraintViolation<NorthAmericaCancelTripRequest>> violations =
validator.validate(request);
...
}
}
我如何执行验证?
CancelRequest request = new CancelRequest("id",new BookingDetails(""));
CancelValidator validator = new CancelValidator();
violations = validator.check(request);
违规行为中应该有一项指出 bookingId 不能为空,而是认为该对象有效。我需要以这种方式进行验证,因为我需要对此对象执行一些其他业务验证,因此我混合使用了 javax 和自定义验证。
谢谢
要执行嵌套 bean 验证,需要在嵌套对象上使用 @Valid
注解:
public class CancelRequest{
@NotEmpty
private String id;
@NotNull
@Valid
private BookingDetails;
}
正如 Eamon Scullion 所说,@Valid 将用于嵌套验证,但不要忘记将 @NotNull 用于对象,如日期,@NotBlank 用于文本字段,@NotEmpty 用于可迭代对象
public class CancelRequest{
@NotBlank
private String id;
@NotEmpty
private List<E> myList;
@NotNull
@Valid
private BookingDetails;
}