@validated 验证 List 参数

川长思鸟来 2022-05-11 03:38 176阅读 0赞

### 写了个接口： ###

@GetMapping("/do") public int doSth(@RequestBody @Validated(MyGroup.class) List<Bean> myBean)

发现`@validated`完全没用，但是用`@valid`可以，但是我要用分组功能必须用`@validated`，在stackOverflow上找到了解决方案：  
[https://stackoverflow.com/questions/28150405/validation-of-a-list-of-objects-in-spring][https_stackoverflow.com_questions_28150405_validation-of-a-list-of-objects-in-spring]

在项目里添加一个`ValidList`类即可，此类通用，可以在全部由此需求的项目（`jdk1.8`）中添加，无需改动，有ValidList类之后只要将接口方法参数中的List改成ValidList即可：

@GetMapping("/do") public int doSth(@RequestBody @Validated(MyGroup.class) ValidList<Bean> myBean)

### 注意： ###

*  如果你不用lombok，就把`@Data`注解去掉，给类中的`list`成员加上`getter`，`setter`方法即可

### ValidList： ###

import lombok.Data; import javax.validation.Valid; import java.util.*; @Data public class ValidList<E> implements List<E> { @Valid private List<E> list = new LinkedList<>(); @Override public int size() { return list.size(); } @Override public boolean isEmpty() { return list.isEmpty(); } @Override public boolean contains(Object o) { return list.contains(o); } @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.retainAll(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); } }

[https_stackoverflow.com_questions_28150405_validation-of-a-list-of-objects-in-spring]: https://stackoverflow.com/questions/28150405/validation-of-a-list-of-objects-in-spring