Postman传递Json字符串型数组转List，并存入父类的List属性中

╰+攻爆jí腚メ 2022-02-27 11:36 1471阅读 0赞

一、Postman传递Json字符串型数组到服务器

1.1选择Body--->raw--->JSON(application/json)

1.2Json数组格式：\{"list":\[\{"plateNo":"京A88888","flag":"1"\},\{"plateNo":"京A66666","flag":"3"\}\]\}

1.3自定义接收前端传递到后台服务器的参数：reqBO.getList()--->该数值为Json字符串型数组;

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI3MjU2MjM_size_16_color_FFFFFF_t_70][]

二、定义实体类

2.1定义接受Json数组的实体类——\*\*\*ReqListBO

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI3MjU2MjM_size_16_color_FFFFFF_t_70 1][]

2.2定义包含\*\*\*ReqListBO实体类的父类——\*\*\*ReqBO

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI3MjU2MjM_size_16_color_FFFFFF_t_70 2][]

三、具体传递及转换方式

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI3MjU2MjM_size_16_color_FFFFFF_t_70 3][]

3.1

字符串型JSON数组reqBO.getList()--->转换为Json数组对象jsonarray

Array jsonarray = JSONArray.fromObject(reqBO.getList());

3.2

Json数组对象jsonarray--->转换为list集合

List list = (List) JSONArray.toCollection(jsonarray, NotifyOpenVehPlatePayReqListBO.class);

3.3

①迭代list集合--->把list集合，对应放入\*\*\*ReqListBO实体类对象中

②把\*\*\*ReqListBO实体类对象，放入\*\*\*ReqListBOS集合对象中

Iterator it = list.iterator();
    List<NotifyOpenVehPlatePayReqListBO> notifyOpenVehPlatePayReqListBOS = new ArrayList<>();
    while (it.hasNext()) {
        NotifyOpenVehPlatePayReqListBO notifyOpenVehPlatePayReqListBO = (NotifyOpenVehPlatePayReqListBO) it.next();
        notifyOpenVehPlatePayReqListBOS.add(notifyOpenVehPlatePayReqListBO);
    }

3.4

把\*\*\*ReqListBOS集合对象，放入父类ReqListBO实体类的集合中

reqBO.setNotifyOpenVehPlatePayReqListBO(notifyOpenVehPlatePayReqListBOS);

\---------------------------------------------------------------大功告成！

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