1.自定义注解类DigitsMustIn

@Constraint(validatedBy = DigitsMustInValidator.class) //具体的实现@Target({java.lang.annotation.ElementType.METHOD,        java.lang.annotation.ElementType.FIELD})@Retention(java.lang.annotation.RetentionPolicy.RUNTIME)@Documentedpublic @interface DigitsMustIn {    String message() default "{}不需在[{}]中"; //提示信息,可以写死,可以填写国际化的key    int[] inArr();    //下面这两个属性必须添加    Class
    [] groups() default {};    Class
    [] payload() default {};}

2.实现DigitsMustInValidator校验服务

public class DigitsMustInValidator implements ConstraintValidator
    
      {    Integer[] ints;    @Override    public void initialize(DigitsMustIn constraintAnnotation) {        int[] ints = constraintAnnotation.inArr();        this.ints = ArrayUtils.toObject(ints);    }    @Override    public boolean isValid(Integer integer, ConstraintValidatorContext constraintValidatorContext) {        if (ArrayUtils.contains(ints, integer)) {            return true;        }        constraintValidatorContext.disableDefaultConstraintViolation();//禁用默认的message的值        //重新添加错误提示语句        constraintValidatorContext.buildConstraintViolationWithTemplate("["+integer+"]" + "必须在" + Arrays.toString(ints) + "之内").addConstraintViolation();        return false;    }}
    

3.在需要校验的字段上加自定义注解

@DigitsMustIn(inArr = {7, 8, 18})private Integer sourceType;

4.验证

private void validate(Object validateObj) throws WMS3CheckedException {    for (ConstraintViolation