SpringBoot关于List集合的校验

1. List集合失效的校验

    @PostMapping("saveBatch")
    @ApiOperation("批量保存")
    @LogOperation("批量保存")
    public Result saveBatch(@RequestBody @Validated List<ResultFieldDTO> list) {
        (list);
        return ();
    }

2. 针对List集合的校验有两种方案

2.1 第一种方案

重新定义一个集合ValidList，需继承集合List，并且定义一个List集合属性，并添加@Valid注解

@Data
public class ValidList<E> implements List<E> {
    @Valid // 这里是关键
    private List<E> list = new ArrayList<>();

    @Override
    public int size() {
        return ();
    }

    @Override
    public boolean isEmpty() {
        return ();
    }

    @Override
    public boolean contains(Object o) {
        return (o);
    }

    @Override
    public Iterator<E> iterator() {
        return ();
    }

    @Override
    public Object[] toArray() {
        return ();
    }

    @Override
    public <T> T[] toArray(T[] a) {
        return (a);
    }

    @Override
    public boolean add(E e) {
        return (e);
    }

    @Override
    public boolean remove(Object o) {
        return (o);
    }

    @Override
    public boolean containsAll(Collection<?> c) {
        return (c);
    }

    @Override
    public boolean addAll(Collection<? extends E> c) {
        return (c);
    }

    @Override
    public boolean addAll(int index, Collection<? extends E> c) {
        return (index, c);
    }

    @Override
    public boolean removeAll(Collection<?> c) {
        return (c);
    }

    @Override
    public boolean retainAll(Collection<?> c) {
        return (c);
    }

    @Override
    public void clear() {
        ();
    }

    @Override
    public E get(int index) {
        return (index);
    }

    @Override
    public E set(int index, E element) {
        return (index, element);
    }

    @Override
    public void add(int index, E element) {
        (index, element);
    }

    @Override
    public E remove(int index) {
        return (index);
    }

    @Override
    public int indexOf(Object o) {
        return (o);
    }

    @Override
    public int lastIndexOf(Object o) {
        return (o);
    }

    @Override
    public ListIterator<E> listIterator() {
        return ();
    }

    @Override
    public ListIterator<E> listIterator(int index) {
        return (index);
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
        return (fromIndex, toIndex);
    }

}

集合的校验则变成如下方式

	@PostMapping("saveBatch")
    @ApiOperation("批量保存")
    @LogOperation("批量保存")
    public Result saveBatch(@RequestBody @Validated ValidList<ResultFieldDTO> list) {
        (list);
        return ();
    }

2.2 第二种方案

controller上添加@Validated

@RestController
@RequestMapping("search")
@Validated
public class ResultFieldController {
......
}

则集合校验变成如下方式

	@PostMapping("saveBatch")
    @ApiOperation("批量保存")
    @LogOperation("批量保存")
    public Result saveBatch(@RequestBody @Valid List<ResultFieldDTO> list) {
        (list);
        return ();
    }