如何使用jooby-hbv验证

Question

我想使用jooby验证，我在https://jooby.org/doc/hbv/中查找过，但我不能使用它

Answer 1

1. 你需要在App类中初始化Hibernate Validator。

    use(new Hbv(ClassUtils.getClasses("com.package.of.classes.validate")));

1. 使用验证器注释您的类。注意:这些类必须在上面的包中。示例：

    public class SampleRequest {
        @NotNull
        private Long id;
        @NotBlank
        String name;
        private @NotBlank
        String description;
        private @Min(1)
        double amount;
    }

然后，您可以在

1. 类中使用通用错误处理程序。

     err((req, rsp, err) -> {
                Throwable cause = err.getCause();
                if (cause instanceof ConstraintViolationException) {
                    Set<ConstraintViolation<?>> constraints = ((ConstraintViolationException) cause)
                            .getConstraintViolations();

                    // handle errors, return error response 
                } else {
                   // ......
                }
            });

1. 或您可以在您的服务中手动验证：

    private void validateRequest(SampleRequest sampleRequest) {
            Validator validator = factory.getValidator();
            Set<ConstraintViolation<SampleRequest>> constraintViolations =
                    validator.validate(sampleRequest);
            if (!constraintViolations.isEmpty()) {
                StringBuilder builder = new StringBuilder();
                for (ConstraintViolation<SampleRequest> error : constraintViolations) {
                    logger.error(error.getPropertyPath() + "::" + error.getMessage());
                    builder.append(error.getPropertyPath() + "::" + error.getMessage());
                }
                throw new IllegalArgumentException(builder.toString());
            }
    }