过滤查询后,Azure路由未转发到端点

时间:2017-02-23 13:11:14

标签: json azure endpoints custom-routes

我开始使用Azure IoT中心,我配置了我的端点和servicehub,以便通过路由学习它。 在此路由中,我指定当消息显示level = critical时,它会将消息转发到我的端点,如以下链接中所述:https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-csharp-csharp-process-d2c

不同之处在于我使用自己的代码为我的温度传感器编程了DTO,并将其作为一个大的json消息发送(参见代码)

DTO课程:

[DataContract]
class Bmp280DTO
{
    [DataMember]
    public Guid guid { get; set; }
    [DataMember]
    public string deviceName { get; set; }
    [DataMember]
    public float tempSensorValue { get; set; }
    [DataMember]
    public float pressureSensorValue { get; set; }
    [DataMember]
    public float altitudeSensorValue { get; set; }
    [DataMember]
    public DateTime measurementTime { get; set; }
    [DataMember]
    public string measurename { get; set; }
    [DataMember]
    public string level { get; set; }

    public Bmp280DTO() { }

    public Bmp280DTO(Guid id, String Device, float TmpSensorValue, float PrSensorValue, float AlSensorValue)
    {
        this.guid = id;
        this.deviceName = Device;
        this.tempSensorValue = TmpSensorValue;
        this.pressureSensorValue = PrSensorValue;
        this.altitudeSensorValue = AlSensorValue;

        this.measurementTime = DateTime.Now;
        this.measurename = "LightSensor";
        this.level = DetermineMessageLevel(TmpSensorValue);
    }

    public string ToJson()
    {
        DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Bmp280DTO));
        MemoryStream ms = new MemoryStream();
        ser.WriteObject(ms, this);
        string json = Encoding.UTF8.GetString(ms.ToArray(), 0, (int)ms.Length);

        return json;

    }

    public string DetermineMessageLevel(float temperaturesensorvalue)
    {
        if(temperaturesensorvalue > 22)
        {
            return "critical";
        }
        return "normal";
    }

}

消息发送:

    private void SendBmp280Data(Bmp280DTO AzureBmp280Data)
    {
        System.Text.StringBuilder Bmp280JsonMessage = new System.Text.StringBuilder();
        Bmp280JsonMessage.Append(AzureBmp280Data.ToJson());

        MessageCommands.SendMessage(Bmp280JsonMessage.ToString());

    }

消息示例: {" GUID":" XXXX"" DEVICENAME":" Bmp280Sensor"" tempSensorValue":23.59763&# 34; pressureSensorValue":98792.11," altitudeSensorValue":213.046539," measurementTime":" 2017-02-23T05:34:00.4544388-08:00&#34 ;, " measurename":" LightSensor""电平":"临界"}

消息在IOT集线器中接收,但不会转发到端点。 我究竟做错了什么?你无法查询json对象消息吗?如果是这样的话你怎么做呢?我不想发送不必要的消息。

1 个答案:

答案 0 :(得分:0)

发送邮件时,这似乎是编码问题。

我在UTF8中对消息进行编码,而需要在ASCII值中完成。 我还可以添加消息属性以使其更加明显。

如下:

 AdditionalInfo><Code>GLW51</Code><Lang>GLW51</LangCode><TzCode>GLW51</TzCode></AdditionalInfo>