@Valid 注解不生效

• 引入依赖包,spring-boot-start-web 包默认会引入,如果非springboot项目需要单独引入一下
• 

   

   

     <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.2.2.Final</version>
     </dependency>

• 　　多层包装对象要使用@valid注解

@Data
@ApiModel
@NoArgsConstructor
@AllArgsConstructor
public class CustDistPriceDetailDTO implements Serializable {

    @ApiModelProperty(value = "主表信息")
    @NotNull(message = "主表信息不能为空")
    private DistributionPO distributionPO;

    @ApiModelProperty(value = "从表信息")
    @NotNull(message = "从表信息不能为空")
    @Size(min = 1, message = "从表信息不能为空")
    @Valid
    private List<DistributionEntryPO> entryList;

}

• 集合入参,要重写List函数

// 用法示例
@PostMapping("/getCustomerRecAndReceiptByCustomerNumber")
public BaseResponse getCustomerRecAndReceiptByCustomerNumber(@RequestBody @Valid ValidList<String> customerNumbers) { return apiService.getCustomerRecAndReceiptByCustomerNumber(customerNumbers); }

@Data
public class ValidList<E> implements List<E>, Serializable { @Valid private List<E> list; public ValidList() { this.list = new ArrayList<>(); } @Override public int size() { return list.size(); } @Override public boolean isEmpty() { return list.isEmpty(); } @Override public boolean contains(Object o) { return list.contains(0); } @Override public Iterator<E> iterator() { return list.iterator(); } @Override public Object[] toArray() { return list.toArray(); } @Override public <T> T[] toArray(T[] a) { return list.toArray(a); } @Override public boolean add(E e) { return list.add(e); } @Override public boolean remove(Object o) { return list.remove(o); } @Override public boolean containsAll(Collection<?> c) { return list.containsAll(c); } @Override public boolean addAll(Collection<? extends E> c) { return list.addAll(c); } @Override public boolean addAll(int index, Collection<? extends E> c) { return list.addAll(index, c); } @Override public boolean removeAll(Collection<?> c) { return list.removeAll(c); } @Override public boolean retainAll(Collection<?> c) { return list.removeAll(c); } @Override public void clear() { list.clear(); } @Override public E get(int index) { return list.get(index); } @Override public E set(int index, E element) { return list.set(index, element); } @Override public void add(int index, E element) { list.add(index, element); } @Override public E remove(int index) { return list.remove(index); } @Override public int indexOf(Object o) { return list.indexOf(o); } @Override public int lastIndexOf(Object o) { return list.lastIndexOf(o); } @Override public ListIterator<E> listIterator() { return list.listIterator(); } @Override public ListIterator<E> listIterator(int index) { return list.listIterator(index); } @Override public List<E> subList(int fromIndex, int toIndex) { return list.subList(fromIndex, toIndex); } }