JSONObject转集合List
String jsonObjString = responseJsonObj.getString("Result");
List<PurchaseOrder> purchaseOrders = (List<PurchaseOrder>) JSONArray.parseArray(jsonObjString, PurchaseOrder.class);
String jsonObjString = responseJsonObj.getString("Result");
List<PurchaseOrder> purchaseOrders = (List<PurchaseOrder>) JSONArray.parseArray(jsonObjString, PurchaseOrder.class);