#annotation

4 messages · Page 1 of 1 (latest)

warm thicket
#

Code:
@Documented
@Constraint(validatedBy = StringContainsValidator.class)
@Target({ElementType.PARAMETER, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface StringContains {

String message() default "字符串不符合规则";

String[] limitValues() default {};

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

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

}

public class StringContainsValidator implements ConstraintValidator<StringContains, String> {

private Set<String> limitValues;

@Override
public void initialize(StringContains constraintAnnotation) {
    limitValues = Arrays.stream(constraintAnnotation.limitValues()).collect(Collectors.toSet());
}

@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
    if (StrUtil.isBlank(value)) {
        return true;
    }
    return limitValues.contains(value.trim());
}

}

problem:How is the value in the message called when a string that does not meet the requirements is detected?

tacit fractalBOT
#

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