使用Gson上传集合数据到服务器，1.最外层用 ArrayMap<String, Object> 封装；2.通过 mRequestParam.put("cmdLineIds", cmdLineIds);存入集合数据；3.用GSON.toJson转换成标准Json字符串传到服务器上。
@Override public Flowable<String> uploadCollectionData(String businessType, List<CmdLineId> cmdLineIds) { ????// ArrayMap<String, Object> mRequestParam; ????mRequestParam.clear(); ????mRequestParam.put("businessType", businessType); ??? mRequestParam.put("cmdLineIds", cmdLineIds); ????Log.v("yff", "up: " + JsonUtil.map2Json(mRequestParam));// 即 new Gson().toJson(map); ????return mRequestApi.uploadCollectionData(JsonUtil.map2Json(mRequestParam)).compose(TransformerHelper.MapTransformer); }Log：
{ ???"cmdLineIds": [ ???????{ ???????????"cmdLineId": "20180823002001" ???????}, ???????{ ???????????"cmdLineId": "201808280041" ???????} ???], ???"businessType": "E4"}JSON
原文地址：https://www.cnblogs.com/jooy/p/9552401.html