springmvc使用@notNull注解验证请求参数方式

Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};

@Target(value= {METHOD, FIELD, ANNOTATION_TYPE})
@Retention(RUNTIME)
@Constraint(validatedBy = CheckEvaluationKeyValidator.class)
@Documented
public @interface CheckEvaluationKey {
    String message() default "{CheckEvaluationKey}";

    Class<?>[] groups() default {};
    
    Class<? extends Payload>[] payload() default {};

    String evaluationKey() default "";
}

@Constraint(validatedBy = CheckEvaluationKeyValidator.class)

public class CheckEvaluationKeyValidator implements ConstraintValidator<CheckEvaluationKey, String> {

    private String checkEvaluationKey;
    
    @Override
    public void initialize(CheckEvaluationKey constraintAnnotation) {
        this.checkEvaluationKey = constraintAnnotation.evaluationKey();
    }
    
    @Override
    public boolean isValid(String value, ConstraintValidatorContext context) {
        
        if (JudgeUtil.isNull(checkEvaluationKey)) {
            String evaluationName = EvaluationEnum.getEvaluationNameWithOutAssert(value);
            return JudgeUtil.isPresent(evaluationName);
            
        } else {
            return JudgeUtil.equals(value, checkEvaluationKey);
        }
    }
}