反序列化 HTTP 响应答案

【问题标题】：Deserializing HTTP response反序列化 HTTP 响应
【发布时间】：2019-10-28 08:33:00
【问题描述】：

我无法反序列化我的 HTTP 响应。谁能告诉我具体怎么做？

我最初使用 List 来反序列化响应，但由于响应是一个 json 数组，所以它抛出了一个 null 异常。

int count=0;
var obj = JsonConvert.DeserializeObject<List<getAllDevices.Class1>>(receivedData);
Console.WriteLine("\n\nReceived Data________________\n" + receivedData + "\n");
 foreach (var item in obj)
     {
        if(item.name=="device")
        Console.WriteLine(item.name);
        foreach(var item2 in item)
           {
             if(item2.action_def.id=="increase")
                count++;
           }
      }

我的 getAllDevices 类具有以下内容：

class getAllDevices
{
    public class Rootobject
    {
        public Class1[] Property1 { get; set; }
    }

    //public Class1[] Property1 { get; set; }
    public class Class1
    {
        public string _id { get; set; }
        public Discovery discovery { get; set; }
        public bool is_authorized { get; set; }
        public bool is_available { get; set; }
        public bool is_enabled { get; set; }
        public bool is_visible { get; set; }
        public bool deleted { get; set; }
        public string name { get; set; }
        public string vendor_name { get; set; }
        public string type { get; set; }
        public Hardware_Id[] hardware_id { get; set; }
        public DateTime created { get; set; }
        public string user_id { get; set; }
        public Datastream[] datastreams { get; set; }
        public Trigger[] triggers { get; set; }
        public Condition[] conditions { get; set; }
        public Action[] actions { get; set; }
        public DateTime last_updated { get; set; }
        public DateTime authorization_updated_on { get; set; }
        public Credentials credentials { get; set; }
        public object[] preferences { get; set; }
        public string[] parent_ids { get; set; }
        public string classification { get; set; }
        public object[] states { get; set; }
        public string subtype { get; set; }
        public string description { get; set; }
        public Metadata metadata { get; set; }
    }
    public class Value
    {
        public bool visible { get; set; }
        public string id { get; set; }
        public string label { get; set; }
        public string datastream_key { get; set; }
    }

    public class Action
    {
        public string _id { get; set; }
        public object last_executed { get; set; }
        public Action_Def action_def { get; set; }
        public Param2[] _params { get; set; }
    }
    public class Discovery
    {
        public bool fake_discovery { get; set; }
    }

    public class Action_Def
    {
        public bool hidden { get; set; }
        public bool show_as_manual_action { get; set; }
        public string _id { get; set; }
        public string id { get; set; }
        public string name { get; set; }
        public int order { get; set; }
        public bool requires_push_message { get; set; }
        public string simple_name { get; set; }
    }

    public class Param2
    {
        public Ui2 ui { get; set; }
        public Value1[] values { get; set; }
        public string id { get; set; }
        public string label { get; set; }
        public string type { get; set; }
        public object default_value { get; set; }
        public int limit_lower { get; set; }
        public int limit_upper { get; set; }
        public string values_datastream_key { get; set; }
        public string values_datastream_type_id { get; set; }
        public string substitution_type { get; set; }
    }

    public class Ui2
    {
        public object presentation_value { get; set; }
        public string _interface { get; set; }
        public int step_size { get; set; }
        public int step_hold_size { get; set; }
    }

    public class Value1
    {
        public bool visible { get; set; }
        public string id { get; set; }
        public string label { get; set; }
        public string datastream_key { get; set; }
        public string _id { get; set; }
    }
    public class Credentials
    {
        public string token { get; set; }
        public string refresh_token { get; set; }
        public int expires_in { get; set; }
        public bool connected { get; set; }
        public long last_updated { get; set; }
    }

    public class Metadata
    {
        public string modelNumber { get; set; }
        public string thermostatRev { get; set; }
        public string runtimeRev { get; set; }
        public string type { get; set; }
        public string thermostat_id { get; set; }
        public string id { get; set; }
        public string code { get; set; }
        public int house_id { get; set; }
        public int dev_cat { get; set; }
        public int sub_cat { get; set; }
    }

    public class Hardware_Id
    {
        public string type { get; set; }
        public object id { get; set; }
    }

    public class Datastream
    {
        public string _id { get; set; }
        public Current_Value current_value { get; set; }
        public DateTime last_updated { get; set; }
        public Datastream_Def datastream_def { get; set; }
    }

    public class Current_Value
    {
        public object value { get; set; }
        public Away away { get; set; }
        public Home home { get; set; }
        public Sleep sleep { get; set; }
    }

    public class Away
    {
        public string name { get; set; }
        public string climateRef { get; set; }
    }

    public class Home
    {
        public string name { get; set; }
        public string climateRef { get; set; }
    }

    public class Sleep
    {
        public string name { get; set; }
        public string climateRef { get; set; }
    }

    public class Datastream_Def
    {
        public bool log_update { get; set; }
        public bool log_duplicate_update { get; set; }
        public string _id { get; set; }
        public string id { get; set; }
        public string name { get; set; }
    }

    public class Trigger
    {
        public string _id { get; set; }
        public object last_triggered { get; set; }
        public string datastream_id { get; set; }
        public Trigger_Def trigger_def { get; set; }
        public Param[] _params { get; set; }
    }

    public class Trigger_Def
    {
        public bool repeatedly_trigger { get; set; }
        public bool hidden { get; set; }
        public string _id { get; set; }
        public string datastream_id { get; set; }
        public string default_condition { get; set; }
        public string default_value { get; set; }
        public string id { get; set; }
        public string name { get; set; }
        public int order { get; set; }
        public string simple_name { get; set; }
    }

    public class Param
    {
        public object[] values { get; set; }
        public string id { get; set; }
        public string label { get; set; }
        public string type { get; set; }
        public string substitution_type { get; set; }
        public string default_condition { get; set; }
        public object default_value { get; set; }
        public string values_datastream_key { get; set; }
        public Ui ui { get; set; }
        public int limit_lower { get; set; }
        public int limit_upper { get; set; }
    }

    public class Ui
    {
        public string _interface { get; set; }
        public int step_size { get; set; }
        public int step_hold_size { get; set; }
    }

    public class Condition
    {
        public string _id { get; set; }
        public object last_state_change { get; set; }
        public string datastream_id { get; set; }
        public Condition_Def condition_def { get; set; }
        public Param1[] _params { get; set; }
    }

    public class Condition_Def
    {
        public bool hidden { get; set; }
        public string _id { get; set; }
        public string datastream_id { get; set; }
        public string default_condition { get; set; }
        public string default_value { get; set; }
        public string id { get; set; }
        public string name { get; set; }
        public int order { get; set; }
        public string simple_name { get; set; }
    }

    public class Param1
    {
        public Value[] values { get; set; }
        public string id { get; set; }
        public string label { get; set; }
        public string type { get; set; }
        public string substitution_type { get; set; }
        public string default_condition { get; set; }
        public object default_value { get; set; }
        public string values_datastream_key { get; set; }
        public Ui1 ui { get; set; }
        public int limit_lower { get; set; }
        public int limit_upper { get; set; }
    }

    public class Ui1
    {
        public string _interface { get; set; }
        public int step_size { get; set; }
        public int step_hold_size { get; set; }
    }
    }
}

当我使用时

 var obj = JsonConvert.DeserializeObject<getAllDevices.Rootobject>(receivedData);
    CrestronConsole.PrintLine("\n\nReceived Data________________\n" + receivedData + "\n");
    foreach (var item in obj.Property1)
    {
    }

我明白了：

 Cannot deserialize JSON array into type 
    'yonomi_one_test_one.getAllDevices+Rootobject'.-----   at 
    Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureArrayContrac (Type objectType, JsonContract contract) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String reference)

我的 JSON 响应如下所示。我在线使用 JSON 到 c# 转换器工具来获取我的 getAllDevices 类。

[ {
    "_id": "5cf528969bcb5a0069cb6039",
    "discovery": {
        "fake_discovery": false
    },
    "is_authorized": true,
    "name": "Plug In Module",
    "conditions": [],
    "actions": [
        {
            "_id": "5cf528969bcb5a0069cb603c",
            "last_executed": "2019-06-13T14:31:56.302Z",
            "action_def": {
                "hidden": false,
                "show_as_manual_action": true,
                "_id": "5a317841ac537b0013a2a7cc",
                "id": "turn_on",
                "name": "Turn On to {level}%",
                "order": 0,
                "requires_push_message": false,
                "simple_name": "Turn On to Brightness%"
            },

        {
            "_id": "5cf528969bcb5a0069cb603e",
            "last_executed": null,
            "action_def": {
                "hidden": false,
                "show_as_manual_action": true,
                "_id": "5a317899ac537b0013a2a7ce",
                "id": "set_brightness",
                "name": "Set Brightness to {level}%",
                "order": 3,
                "requires_push_message": false,
                "simple_name": "Set Brightness to Level%"
            },
            "params": [
                {
                    "ui": {
                        "interface": "slider",
                        "step_size": 5,
                        "step_hold_size": 10,
                        "presentation_value": 10
                    },
                    "values": [],
                    "id": "level",
                    "label": "Percent",
                    "type": "Number",
                    "default_value": 10,
                    "limit_lower": 0,
                    "limit_upper": 100
                }
            ]
        }
    ],
    "last_updated": "2019-06-13T14:32:05.413Z",
    "parent_ids": [
        "5cf03e05aa4d770038167dfd"
    ],
    "classification": "device",
    "states": []
}
]

【问题讨论】：

看起来你应该反序列化为getAllDevices.Rootobject，而不是Class1。如果您也发布 JSON 响应会有所帮助，但我猜您会得到一组对象，而不是单个 Class1... 然后您需要将您的 for 循环修改为 foreach (var item in obj.Property1) { ... }
@RonBeyer 我确实尝试过并获得了上述异常。
请提供您收到的 JSON 响应示例。
@RossBush 他们是否在单个编译程序集中使用它真的没关系。未标记为public 的类自动为internal，对程序集公开。这不是这里的问题。
@V_stack 您的 JSON 响应字符串格式不正确。能否请您发布正确的 JSON 响应字符串？

标签： c# json http deserialization

【解决方案1】：

我决定使用 JArray.parse 来解决这个问题。

 parsedArray = JArray.Parse(receivedData);
 foreach (JObject ob in parsedArray.Children<JObject>())
                        {

                                var name = (string)ob["name"];

                                if (name == "My ecobee")
                                {
                                    device_id = (string)ob["_id"];

                                    var json = (JArray)ob["actions"];
                                    foreach (JObject ob1 in json.Children<JObject>())
                                    {
                                        var actionname = (string)ob1["action_def"]["id"];
                                        if (actionname == "increase_temp_by")
                                        {
                                            action_id = (string)ob1["_id"];
                                            strname = (string)ob1["params"][0]["id"];

                                        }
                                    }
                            }

【讨论】：