自定义校验功能

/**
	 * 显示状态[0-不显示；1-显示]
	 */
@NotNull(groups = {AddGroup.class, UpdateStatusGroup.class})
@ListValue(vals = {0,1}, groups = {AddGroup.class, UpdateGroup.class, UpdateStatusGroup.class})
private Integer showStatus;

<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>2.0.1.Final</version>
</dependency>

@Documented
@Constraint(validatedBy = { ListValueConstraintValidator.class})
@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE })
@Retention(RUNTIME)
public @interface ListValue {
    // 使用该属性去Validation.properties中取
    String message() default "{com.atguigu.common.valid.ListValue.message}";

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

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

    int[] value() default {};
}

该属性值取哪里取呢？
    common创建文件ValidationMessages.properties
    里面写上com.atguigu.common.valid.ListValue.message=必须提交指定的值 [0,1]

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set=new HashSet<>();
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] value = constraintAnnotation.value();
        for (int i : value) {
            set.add(i);
        }

    }

    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {


        return  set.contains(value);
    }
}

@Constraint(validatedBy = { ListValueConstraintValidator.class})

/**
	 * 显示状态[0-不显示；1-显示]
	 */
	@ListValue(value = {0,1},groups ={AddGroup.class})
	private Integer showStatus;