来自 WCF Restfull 服务的错​​误调用方法 - ERR_CONNECTION_RESET

Question

我遇到了 WCF Restfull Webservice 的问题，问题出在一种方法上，其他方法正常工作，那么我认为这不是一般的配置问题。 我知道可能是什么问题，但实际上我不知道如何解决它。 该方法可以访问第三方网络服务以检索以下类的对象：

[DataContract]
public class DeviceData
{
    [DataMember]
    public int DeviceDataFull { get; set; }
    [DataMember]
    public string DeviceDataVersion { get; set; }
    [DataMember]
    public string DeviceDataModel { get; set; }
    [DataMember]
    public int DeviceDataZWave_Heal { get; set; }
    [DataMember]
    public string DeviceDataTemperature { get; set; }
    [DataMember]
    public string DeviceDataSkin { get; set; }
    [DataMember]
    public string DeviceDataSerial_Number { get; set; }
    [DataMember]
    public string DeviceDataFWD1 { get; set; }
    [DataMember]
    public string DeviceDataFWD1Token { get; set; }
    [DataMember]
    public string DeviceDataFWD2 { get; set; }
    [DataMember]
    public string DeviceDataFWD2Token { get; set; }
    [DataMember]
    public int DeviceDataMode { get; set; }
    [DataMember]
    public List<Section> DeviceDataSections { get; set; }
    [DataMember]
    public List<Room> DeviceDataRooms { get; set; }
    [DataMember]
    public List<Scene> DeviceDataScenes { get; set; }
    [DataMember]
    public List<DeviceItem> DeviceDataItems { get; set; }
    [DataMember]
    public List<Category> DeviceDataCategories { get; set; }
    [DataMember]
    public int DeviceDataIr { get; set; }
    [DataMember]
    public string DeviceDataIrtx { get; set; }
    [DataMember]
    public int DeviceDataLoadTime { get; set; }
    [DataMember]
    public int DeviceDataState { get; set; }
    [DataMember]
    public string DeviceDataComment { get; set; }

}

我在方法代码中做的唯一一件事就是填充这个对象，在我试图获取的代码段中：public List<DeviceItem> DeviceDataItems { get; set; } 是问题所在，因为我在没有它的情况下测试了该方法并且工作正常。此 DeviceItem 列表具有继承 Device Item 类的对象：

DeviceItemPanel : DeviceItem
DeviceItemPanelPartition : DeviceItem
DeviceItemDimmable : DeviceItem
DeviceItemThermostat : DeviceItem
etc..

我的问题：服务架构是否有任何限制来返回我上面解释的对象类？ 因为当我执行该方法时它仍然处于加载状态，几秒钟后我收到消息：ERR_CONNECTION_RESET，我没有看到任何其他错误代码或其他任何内容，我还调试了该方法，一切正常问题是当它尝试以 JSON 格式返回对象时。 如果有人可以帮助我找到解决方案，我将不胜感激。 注意这个webservice方法的代码：

public ResultDeviceData GetDeviceData(string User, string Password, string DeviceNumber)
    {
        ResultDeviceData result = new ResultDeviceData();
        try
        {
            Identity identity = GetUserIdentityPrivate(User, Password);
            DeviceInfo info = GetDeviceInfoByNumber(User, Password, DeviceNumber);
            string url = "https://" + info.DeviceInfoServerRelay + "/relay/relay/relay/device/" + info.DeviceNumber + "/port_3480/data_request?id=lu_sdata&output_format=json";
            string jsonResult = Request_Get(url, null, null, info.DeviceInfoServerRelayToken);
            //Read Json
            var obj = JObject.Parse(jsonResult);
            DeviceData data = new DeviceData();
            data.DeviceDataFull = (int)obj.SelectToken("full");
            data.DeviceDataVersion = (string)obj.SelectToken("version");
            data.DeviceDataModel = (string)obj.SelectToken("model");
            data.DeviceDataZWave_Heal = (int)obj.SelectToken("zwave_heal");
            data.DeviceDataTemperature = (string)obj.SelectToken("temperature");
            data.DeviceDataSkin = (string)obj.SelectToken("skin");
            data.DeviceDataSerial_Number = (string)obj.SelectToken("serial_number");
            data.DeviceDataFWD1 = (string)obj.SelectToken("fwd1");
            data.DeviceDataFWD1Token = Request_Get("https://" + data.DeviceDataFWD1 + "/info/session/token", identity.IdentityFirm, identity.IdentitySignature, null);
            data.DeviceDataFWD2 = (string)obj.SelectToken("fwd2");
            data.DeviceDataFWD2Token = Request_Get("https://" + data.DeviceDataFWD2 + "/info/session/token", identity.IdentityFirm, identity.IdentitySignature, null);
            data.DeviceDataMode = (int)obj.SelectToken("mode");
            data.DeviceDataIr = (int)obj.SelectToken("ir");
            data.DeviceDataIrtx = (string)obj.SelectToken("irtx");
            data.DeviceDataLoadTime = (int)obj.SelectToken("loadtime");
            data.DeviceDataState = (int)obj.SelectToken("state");
            data.DeviceDataComment = (string)obj.SelectToken("comment");
            data.DeviceDataSections = new List<Section>();
            data.DeviceDataRooms = new List<Room>();
            data.DeviceDataScenes = new List<Scene>();
            data.DeviceDataCategories = new List<Category>();
            data.DeviceDataItems = new List<DeviceItem>();
            //Loading Sections
            var sections = JArray.Parse(obj.SelectToken("sections").ToString());
            for (int i = 0; i < sections.Count; i++)
            {
                Section section = new Section();
                section.SectionId = (int)sections[i].SelectToken("id");
                section.SectionName = (string)sections[i].SelectToken("name");
                data.DeviceDataSections.Add(section);
            }
            //Loading Rooms
            var rooms = JArray.Parse(obj.SelectToken("rooms").ToString());
            for (int i = 0; i < rooms.Count; i++)
            {
                Room room = new Room();
                room.RoomId = (int)rooms[i].SelectToken("id");
                room.RoomName = (string)rooms[i].SelectToken("name");
                room.SectionId = (int)rooms[i].SelectToken("section");
                data.DeviceDataRooms.Add(room);
            }
            //Loading Scenes
            var scenes = JArray.Parse(obj.SelectToken("scenes").ToString());
            for (int i = 0; i < scenes.Count; i++)
            {
                Scene scene = new Scene();
                scene.SceneId = (int)scenes[i].SelectToken("id");
                scene.SceneName = (string)scenes[i].SelectToken("name");
                scene.RoomId = (int)scenes[i].SelectToken("room");
                scene.SceneActive = ((int)scenes[i].SelectToken("active")) != 0;
                data.DeviceDataScenes.Add(scene);
            }
            //Loading Categories
            var categories = JArray.Parse(obj.SelectToken("categories").ToString());
            for (int i = 0; i < categories.Count; i++)
            {
                Category category = new Category();
                category.CategoryId = (int)categories[i].SelectToken("id");
                category.CategoryName = (string)categories[i].SelectToken("name");
                data.DeviceDataCategories.Add(category);
            }
            //Loading Devices
            var deviceItems = JArray.Parse(obj.SelectToken("devices").ToString());
            for (int i = 0; i < deviceItems.Count; i++)
            {
                int DeviceItemId = (int)deviceItems[i].SelectToken("id");
                string DeviceItemAltId = (string)deviceItems[i].SelectToken("altid");
                string DeviceItemName = (string)deviceItems[i].SelectToken("name");
                int RoomId = (int)deviceItems[i].SelectToken("room");
                int CategoryId = (int)deviceItems[i].SelectToken("category");
                int SubCategoryId = (int)deviceItems[i].SelectToken("subcategory");
                int DeviceItemParent = (int)deviceItems[i].SelectToken("parent");
                switch (CategoryId)
                {
                    case 1:
                        {
                            break;
                        }
                    case 2:
                        {
                            DeviceItemDimmable dimmable = new DeviceItemDimmable();
                            dimmable.DeviceItemId = DeviceItemId;
                            dimmable.DeviceItemAltId = DeviceItemAltId;
                            dimmable.DeviceItemName = DeviceItemName;
                            dimmable.RoomId = RoomId;
                            dimmable.CategoryId = CategoryId;
                            dimmable.SubCategoryId = 0;
                            dimmable.DeviceItemParent = DeviceItemParent;
                            dimmable.DeviceItemDimmableStatus = (string)deviceItems[i].SelectToken("status");
                            dimmable.DeviceItemDimmableLevel = (string)deviceItems[i].SelectToken("level");
                            dimmable.DeviceItemDimmableState = (int)deviceItems[i].SelectToken("state");
                            dimmable.DeviceItemDimmableComment = (string)deviceItems[i].SelectToken("comment");
                            data.DeviceDataItems.Add(dimmable);
                            break;
                        }
                    case 3:
                        {
                            break;
                        }
                    case 4:
                        {
                            break;
                        }
                    case 5:
                        {
                            switch (SubCategoryId)
                            {
                                case 1:
                                    {
                                        DeviceItemThermostat thermostat = new DeviceItemThermostat();
                                        thermostat.DeviceItemId = DeviceItemId;
                                        thermostat.DeviceItemAltId = DeviceItemAltId;
                                        thermostat.DeviceItemName = DeviceItemName;
                                        thermostat.RoomId = RoomId;
                                        thermostat.CategoryId = CategoryId;
                                        thermostat.SubCategoryId = 0;
                                        thermostat.DeviceItemParent = DeviceItemParent;
                                        thermostat.DeviceItemThermostatFanMode = (string)deviceItems[i].SelectToken("fanmode");
                                        thermostat.DeviceItemThermostatHvacState = (string)deviceItems[i].SelectToken("hvacstate");
                                        thermostat.DeviceItemThermostatMode = (string)deviceItems[i].SelectToken("mode");
                                        thermostat.DeviceItemThermostatSetPoint = (string)deviceItems[i].SelectToken("setpoint");
                                        thermostat.DeviceItemThermostatHeat = (string)deviceItems[i].SelectToken("heat");
                                        thermostat.DeviceItemThermostatCool = (string)deviceItems[i].SelectToken("cool");
                                        thermostat.DeviceItemThermostatStatus = (string)deviceItems[i].SelectToken("status");
                                        thermostat.DeviceItemThermostatBatteryLevel = (string)deviceItems[i].SelectToken("batterylevel");
                                        thermostat.DeviceItemThermostatTemperature = (string)deviceItems[i].SelectToken("temperature");
                                        thermostat.DeviceItemThermostatState = (int)deviceItems[i].SelectToken("state");
                                        thermostat.DeviceItemThermostatComment = (string)deviceItems[i].SelectToken("comment");
                                        data.DeviceDataItems.Add(thermostat);
                                        break;
                                    }
                                case 2:
                                    {
                                        break;
                                    }
                                case 3:
                                    {
                                        break;
                                    }
                                default:
                                    break;
                            }

                            break;
                        }
                    case 6:
                        {
                            DeviceItemCamera camera = new DeviceItemCamera();
                            camera.DeviceItemId = DeviceItemId;
                            camera.DeviceItemAltId = DeviceItemAltId;
                            camera.DeviceItemName = DeviceItemName;
                            camera.RoomId = RoomId;
                            camera.CategoryId = CategoryId;
                            camera.SubCategoryId = 0;
                            camera.DeviceItemParent = DeviceItemParent;
                            camera.DeviceItemCameraIP = (string)deviceItems[i].SelectToken("ip");
                            camera.DeviceItemCameraURL = (string)deviceItems[i].SelectToken("url");
                            camera.DeviceItemCameraStreamming = (string)deviceItems[i].SelectToken("streaming");
                            camera.DeviceItemCameraVideoUrl = (string)deviceItems[i].SelectToken("videourls");
                            camera.DeviceItemCameraCommands = ((string)deviceItems[i].SelectToken("commands")).Split(',');
                            data.DeviceDataItems.Add(camera);
                            break;
                        }

                    case 22:
                        {
                            DeviceItemPanel panel = new DeviceItemPanel();
                            panel.DeviceItemId = DeviceItemId;
                            panel.DeviceItemAltId = DeviceItemAltId;
                            panel.DeviceItemName = DeviceItemName;
                            panel.RoomId = RoomId;
                            panel.CategoryId = CategoryId;
                            panel.SubCategoryId = 0;
                            panel.DeviceItemParent = DeviceItemParent;
                            data.DeviceDataItems.Add(panel);
                            break;
                        }
                    case 23:
                        {
                            DeviceItemPanelPartition panelPartition = new DeviceItemPanelPartition();
                            panelPartition.DeviceItemId = DeviceItemId;
                            panelPartition.DeviceItemAltId = DeviceItemAltId;
                            panelPartition.DeviceItemName = DeviceItemName;
                            panelPartition.RoomId = RoomId;
                            panelPartition.CategoryId = CategoryId;
                            panelPartition.SubCategoryId = 0;
                            panelPartition.DeviceItemParent = DeviceItemParent;
                            panelPartition.DeviceItemPanelPartitionAlarm = (string)deviceItems[i].SelectToken("alarm");
                            panelPartition.DeviceItemPanelPartitionAlarmMemory = (string)deviceItems[i].SelectToken("alarmmemory");
                            panelPartition.DeviceItemPanelPartitionArmMode = (string)deviceItems[i].SelectToken("armmode");
                            panelPartition.DeviceItemPanelPartitionDetailedArmMode = (string)deviceItems[i].SelectToken("detailedarmmode");
                            data.DeviceDataItems.Add(panelPartition);
                            break;
                        }

                    default:
                        {

                        }
                        break;
                }
            }
            result.ResultMessage = "Data Retrieve";
            result.ResultObject = data;
            result.ResultValue = true;

        }
        catch (Exception e)
        {
            result.ResultMessage = e.Message;
            result.ResultObject = null;
            result.ResultValue = false;
        }

        return result;
    }

Answer 1

我解决了在方法中返回字符串的问题，并在代码中序列化对象。

return JsonConvert.SerializeObject(result);