一个pojo跟另外两个pojo是一对多关系，如何将这两个一对多关系一起插入数据库

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这家伙很懒，什么个性签名都没有留下。

blic class SaleActivityBo extends SaleActivity {
    /**
     * 生效区域的集合
     */
    @Many(field = "saleActivityId")
    private List<EffectiveAreaBo> effectiveAreaBoList;


    /**
     * 优惠内容的集合
     */
    @Many(field = "saleActivityId")
    private List<SaleContentBo> saleContentBoList;

   SaleActivityBo returnBo = saleRuleService.insertWith(saleActivityBo, "effectiveAreaBoList");

wendal

1楼•2455天前

insertWith的第二个参数是正则表达式，可以是null的

wx_7lk4hgerl7vdvt2aav1n 2楼•2455天前

那如果是下面的这种多层次的一对多关系映射呢，如何将SaleContentBo跟SaleRuleBo的一对多关系也一起保存到数据库中

public class SaleActivityBo extends SaleActivity {
    /**
     * 生效区域的集合
     */
    @Many(field = "saleActivityId")
    private List<EffectiveAreaBo> effectiveAreaBoList;


    /**
     * 优惠内容的集合
     */
    @Many(field = "saleActivityId")
    private List<SaleContentBo> saleContentBoList;

}

public class SaleContentBo extends SaleContent {

    /**
     * 保存营销规则的集合
     */
    @Many(field = "saleContentId")
    private List<SaleRuleBo> saleRuleBoList;
}

wendal

3楼•2455天前

如果是特例，可以先insertWith，然后对第二层的对象执行insertLinks

wx_7lk4hgerl7vdvt2aav1n 4楼•2455天前

具体怎么操作呢，下面的这个代码稚嫩插入到第二层次，第三层次的就不行了


    /**
     * 测试插入一对多关系
     * 如果要插入一对多的关系的话直接下面这种实现就可以了
     */
    @Test
    public void testManyInsert() {
        SaleActivityBo saleActivityBo = new SaleActivityBo();
        saleActivityBo.setCreatorId("11111111111111111111");

        List<EffectiveAreaBo> effectiveAreaList = new ArrayList<>();
        EffectiveAreaBo effectiveArea = new EffectiveAreaBo();
        effectiveArea.setEffectiveType(EnumEffectiveType.HOUSE_SPACE);
        effectiveArea.setEffectiveId("2222222222222222");
        effectiveAreaList.add(effectiveArea);

        effectiveArea = new EffectiveAreaBo();
        effectiveArea.setEffectiveType(EnumEffectiveType.HOUSE_SPACE);
        effectiveArea.setEffectiveId("3333333333333333");
        effectiveAreaList.add(effectiveArea);
        saleActivityBo.setEffectiveAreaBoList(effectiveAreaList);

        List<SaleContentBo> saleContentBoList = new ArrayList<>();
        SaleContentBo saleContentBo = new SaleContentBo();
        saleContentBo.setCurrentNumber(222);
        saleContentBo.setPreferentialValue(222);
        saleContentBoList.add(saleContentBo);
        List<SaleRuleBo> saleRuleBoList = new ArrayList<>();
        SaleRuleBo saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(111);
        saleRuleBo.setMaxValue(111);
        saleRuleBoList.add(saleRuleBo);
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(222);
        saleRuleBo.setMaxValue(222);
        saleRuleBoList.add(saleRuleBo);
        saleContentBo.setSaleRuleBoList(saleRuleBoList);


        saleContentBo = new SaleContentBo();
        saleContentBo.setCurrentNumber(111);
        saleContentBo.setPreferentialValue(111);
        saleContentBoList.add(saleContentBo);
        saleActivityBo.setSaleContentBoList(saleContentBoList);

        saleRuleBoList = new ArrayList<>();
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(333);
        saleRuleBo.setMaxValue(333);
        saleRuleBoList.add(saleRuleBo);
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(444);
        saleRuleBo.setMaxValue(444);
        saleRuleBoList.add(saleRuleBo);
        saleContentBo.setSaleRuleBoList(saleRuleBoList);


        saleRuleService.insertWith(saleActivityBo, "saleActivityId|saleActivityId|saleContentId");
    }

wendal

5楼•2455天前

dao.insertLinks(saleContentBo, null);

wx_7lk4hgerl7vdvt2aav1n 6楼•2455天前

貌似不行，像下面这样的代码，只能将EffectiveAreaBo、SaleContentBo插入，SaleActivityBo和SaleRuleBo都插入不进去

 @Test
    public void testManyInsert() {
        SaleActivityBo saleActivityBo = new SaleActivityBo();
        saleActivityBo.setCreatorId("11111111111111111111");

        List<EffectiveAreaBo> effectiveAreaList = new ArrayList<>();
        EffectiveAreaBo effectiveArea = new EffectiveAreaBo();
        effectiveArea.setEffectiveType(EnumEffectiveType.HOUSE_SPACE);
        effectiveArea.setEffectiveId("2222222222222222");
        effectiveAreaList.add(effectiveArea);
        saleActivityBo.setEffectiveAreaBoList(effectiveAreaList);

        List<SaleContentBo> saleContentBoList = new ArrayList<>();
        SaleContentBo saleContentBo = new SaleContentBo();
        saleContentBo.setCurrentNumber(222);
        saleContentBo.setPreferentialValue(222);

        List<SaleRuleBo> saleRuleBoList = new ArrayList<>();
        SaleRuleBo saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(111);
        saleRuleBo.setMaxValue(111);
        saleRuleBoList.add(saleRuleBo);
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(222);
        saleRuleBo.setMaxValue(222);
        saleRuleBoList.add(saleRuleBo);
        saleContentBo.setSaleRuleBoList(saleRuleBoList);

        saleContentBoList.add(saleContentBo);
        saleActivityBo.setSaleContentBoList(saleContentBoList);

        saleRuleService.insertLinks(saleActivityBo, null);
    }

wx_7lk4hgerl7vdvt2aav1n 7楼•2455天前

然后试了下，像这样子的实现就可以了，就能将三层的关系全部插入进去掉

 public void testManyInsert() {
        SaleActivityBo saleActivityBo = new SaleActivityBo();
        saleActivityBo.setCreatorId("11111111111111111111");

        List<EffectiveAreaBo> effectiveAreaList = new ArrayList<>();
        EffectiveAreaBo effectiveArea = new EffectiveAreaBo();
        effectiveArea.setEffectiveType(EnumEffectiveType.HOUSE_SPACE);
        effectiveArea.setEffectiveId("2222222222222222");
        effectiveAreaList.add(effectiveArea);
        saleActivityBo.setEffectiveAreaBoList(effectiveAreaList);

        List<SaleContentBo> saleContentBoList = new ArrayList<>();
        SaleContentBo saleContentBo = new SaleContentBo();
        saleContentBo.setCurrentNumber(222);
        saleContentBo.setPreferentialValue(222);

        List<SaleRuleBo> saleRuleBoList = new ArrayList<>();
        SaleRuleBo saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(111);
        saleRuleBo.setMaxValue(111);
        saleRuleBoList.add(saleRuleBo);
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(222);
        saleRuleBo.setMaxValue(222);
        saleRuleBoList.add(saleRuleBo);
        saleContentBo.setSaleRuleBoList(saleRuleBoList);

        saleContentBoList.add(saleContentBo);
        saleActivityBo.setSaleContentBoList(saleContentBoList);

        saleRuleService.insertWith(saleActivityBo, null);
        saleRuleService.insertLinks(saleContentBo, null);
    }

wx_7lk4hgerl7vdvt2aav1n 8楼•2455天前

上面的saleRuleService.insertLinks(saleContentBo, null);会存在一个问题就是只会将一个saleContentBo对应的saleRuleBoList关系保存到数据库，如果要将全部的saleContentBo跟对应的saleRuleBoList关系保存下来的会就需要像下面这样迭代saleContentBoList集合然后使用saleRuleService.insertLinks(saleContentBo, null);这样就能将全部的saleContentBo对应的saleRuleBoList关系保存下来

@Test
    public void testManyInsert() {
        SaleActivityBo saleActivityBo = new SaleActivityBo();
        saleActivityBo.setCreatorId("活动创建者id");

        List<EffectiveAreaBo> effectiveAreaList = new ArrayList<>();
        //第一个生效区域
        EffectiveAreaBo effectiveArea = new EffectiveAreaBo();
        effectiveArea.setEffectiveType(EnumEffectiveType.HOUSE_SPACE);
        effectiveArea.setEffectiveId("第一个生效区域");
        effectiveAreaList.add(effectiveArea);
        //第二个生效区域
        effectiveArea = new EffectiveAreaBo();
        effectiveArea.setEffectiveType(EnumEffectiveType.ZONE);
        effectiveArea.setEffectiveId("第二个生效区域");
        effectiveAreaList.add(effectiveArea);
        saleActivityBo.setEffectiveAreaBoList(effectiveAreaList);

        //第一个优惠内容
        List<SaleContentBo> saleContentBoList = new ArrayList<>();
        SaleContentBo saleContentBo = new SaleContentBo();
        saleContentBo.setCurrentNumber(111);
        saleContentBo.setPreferentialValue(111);
        //第一个优惠内容对应的规则
        List<SaleRuleBo> saleRuleBoList = new ArrayList<>();
        SaleRuleBo saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(111111);
        saleRuleBo.setMaxValue(111111);
        saleRuleBoList.add(saleRuleBo);
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(111222);
        saleRuleBo.setMaxValue(111222);
        saleRuleBoList.add(saleRuleBo);
        saleContentBo.setSaleRuleBoList(saleRuleBoList);
        //将第一个优惠内容添加到集合中
        saleContentBoList.add(saleContentBo);


        //第二个优惠内容
        saleContentBo = new SaleContentBo();
        saleContentBo.setCurrentNumber(222);
        saleContentBo.setPreferentialValue(222);
        //第二个优惠内容对应的规则
        saleRuleBoList = new ArrayList<>();
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(222111);
        saleRuleBo.setMaxValue(222111);
        saleRuleBoList.add(saleRuleBo);
        saleRuleBo = new SaleRuleBo();
        saleRuleBo.setMinValue(222222);
        saleRuleBo.setMaxValue(222222);
        saleRuleBoList.add(saleRuleBo);
        saleContentBo.setSaleRuleBoList(saleRuleBoList);
        //将第二个优惠内容添加到集合中
        saleContentBoList.add(saleContentBo);

        //保存优惠内容到优惠活动中
        saleActivityBo.setSaleContentBoList(saleContentBoList);

        //将所有的关系映射保存起来
        saleRuleService.insertWith(saleActivityBo, null);
        for (SaleContentBo contentBo : saleContentBoList) {
            saleRuleService.insertLinks(contentBo, null);
        }

    }

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