允许在Spring验证中使用数值

public class User {
    @Min(18)
    private int age;

    // getter和setter方法
}

public class Product {
    @DecimalMin("0.01")
    private BigDecimal price;

    // getter和setter方法
}

public class Order {
    @Digits(integer = 5, fraction = 2)
    private BigDecimal amount;

    // getter和setter方法
}

public class Transaction {
    @Positive
    private BigDecimal amount;

    // getter和setter方法
}

public class CustomValidator implements ConstraintValidator<CustomValidation, String> {
    @Override
    public void initialize(CustomValidation constraintAnnotation) {
    }

    @Override
    public boolean isValid(String value, ConstraintValidatorContext context) {
        // 自定义验证逻辑
        return value != null && value.startsWith("prefix");
    }
}