递归删除分类树菜单

@Service

public class ContentcategoryServiceImpl

extends BaseServiceImpl<Contentcategory>

implements ContentcategoryService{

    @Autowired

    private ContentcategoryMapper contentcategoryMapper;

 

    @Override

    publicvoid deleteContentcategoryById(Contentcategory contentcategory) {

       List<Object> deleteIds = new ArrayList<Object>();

        deleteIds.add(contentcategory.getId());

        //递归查询所有子类目

        findSubNode(deleteIds,contentcategory.getId());    

        //执行批量删除

        this.deleteByIds(deleteIds);

    }

 

    privatevoid findSubNode(List<Object> deleteIds,Long id) {

       Contentcategory contentcategory = new Contentcategory();

        contentcategory.setParentid(id);

        //查询当前分类的子类目

        List<Contentcategory> list= this.contentcategoryMapper.select(contentcategory);   

        for (Contentcategory contentcategory2 : list) {

            //把子类目的id放入集合中

            deleteIds.add(contentcategory2.getId());           

            findSubNode(deleteIds, contentcategory2.getId());  

        }       

    }

}