设备影子功能的例程运行后，您可以在设备端和物联网平台查看日志信息。

背景信息

已配置C Link SDK的设备影子功能例程，详细信息，请参见使用示例。

设备端日志

您可以在设备端查看运行结果。

  • 连接日志：

    [1626317181.277][LK-0313] MQTT user calls aiot_mqtt_connect api, connect
[1626317181.277][LK-0317] LightSwitch&a1wP******
[1626317181.277][LK-0318] 97B797D367BF307A0573979CF6CCA5675719F6790B361F2596E01B72AC******
core_sysdep_network_establish host iot-06******.mqtt.iothub.aliyuncs.comuncs.com port 1883, type 0
establish tcp connection with server(host='iot-06******.mqtt.iothub.aliyuncs.comuncs.com', port=[1883])
success to establish tcp, fd=3
local port: 38522
[1626317181.300][LK-1000] establish mbedtls connection with server(host='iot-06******.mqtt.iothub.aliyuncs.comuncs.com', port=[1883])
[1626317181.388][LK-1000] success to establish mbedtls connection， (cost 44947 bytes in total, max used 47859 bytes)
[1626317181.388][LK-0319] a1wP******.LightSwitch|timestamp=2524608000000,_ss=1,_v=sdk-c-4.1.0,securemode=2,signmethod=hmacsha256,ext=3,_conn=tls_6b|
[1626317181.433][LK-0313] MQTT connect success in 161 ms
AIOT_MQTTEVT_CONNECT

  • 设备主动上报状态：

    1. 设备上报状态到设备影子的日志：

      [1626317187.433][LK-0309] pub: /shadow/update/a1wP******/LightSwitch

[LK-030A] > 7B 22 6D 65 74 68 6F 64  22 3A 22 75 70 64 61 74 | {"method":"update",
[LK-030A] > 65 22 2C 22 73 74 61 74  65 22 3A 7B 22 72 65 70 | "state":{"rep
[LK-030A] > 6F 72 74 65 64 22 3A 7B  22 4C 69 67 68 74 53 77 | orted":{"LightSw
[LK-030A] > 69 74 63 68 22 3A 31 7D  7D 2C 22 76 65 72 73 69 | itch":1}},"versi
[LK-030A] > 6F 6E 22 3A 30 7D                                | on":0}

    2. 应答报文日志：

      [1626317187.477][LK-0309] pub: /shadow/get/a1wP******/LightSwitch

[LK-030A] < 7B 22 6D 65 74 68 6F 64  22 3A 22 72 65 70 6C 79 | {"method":"reply
[LK-030A] < 22 2C 22 70 61 79 6C 6F  61 64 22 3A 7B 22 73 74 | ","payload":{"st
[LK-030A] < 61 74 75 73 22 3A 22 73  75 63 63 65 73 73 22 2C | atus":"success",
[LK-030A] < 22 76 65 72 73 69 6F 6E  22 3A 30 7D 2C 22 63 6C | "version":0},"cl
[LK-030A] < 69 65 6E 74 54 6F 6B 65  6E 22 3A 22 6E 75 6C 6C | ientToken":"null
[LK-030A] < 22 2C 22 74 69 6D 65 73  74 61 6D 70 22 3A 31 36 | ","timestamp":16
[LK-030A] < 32 36 33 31 37 31 38 37  7D                      | 26317187}

[1626317187.477][LK-1304] SHADOW recv get_reply message
demo_shadow_recv_handler, type = 0, productKey = a1wP******, deviceName = LightSwitch
payload = "{"status":"success","version":0}", status = success, timestamp = 1626317187
  • 应用程序改变设备状态：
    1. 物联网平台下发的期望属性日志：

      例如，从物联网平台下发了一条期望属性为{"LightSwitch":0}的消息，设备接收消息后，打印日志如下。 

      [1626319658.166][LK-0309] pub: /shadow/get/a1wP******/LightSwitch

[LK-030A] < 7B 22 6D 65 74 68 6F 64  22 3A 22 63 6F 6E 74 72 | {"method":"contr
[LK-030A] < 6F 6C 22 2C 22 70 61 79  6C 6F 61 64 22 3A 7B 22 | ol","payload":{"
[LK-030A] < 73 74 61 74 65 22 3A 7B  22 64 65 73 69 72 65 64 | state":{"desired
[LK-030A] < 22 3A 7B 22 4C 69 67 68  74 53 77 69 74 63 68 22 | ":{"LightSwitch"
[LK-030A] < 3A 30 7D 7D 2C 22 6D 65  74 61 64 61 74 61 22 3A | :0}},"metadata":
[LK-030A] < 7B 22 64 65 73 69 72 65  64 22 3A 7B 22 4C 69 67 | {"desired":{"Lig
[LK-030A] < 68 74 53 77 69 74 63 68  22 3A 7B 22 74 69 6D 65 | htSwitch":{"time
[LK-030A] < 73 74 61 6D 70 22 3A 31  36 32 36 33 31 39 36 35 | stamp":162631965
[LK-030A] < 38 7D 7D 7D 7D 2C 22 74  69 6D 65 73 74 61 6D 70 | 8}}}},"timestamp
[LK-030A] < 22 3A 31 36 32 36 33 31  39 36 35 38 2C 22 76 65 | ":1626319658,"ve
[LK-030A] < 72 73 69 6F 6E 22 3A 34  7D                      | rsion":0}

[1626319658.166][LK-1304] SHADOW recv control message
demo_shadow_recv_handler, type = 1, productKey = a1wP******, deviceName = LightSwitch
payload = "{"state":{"desired":{"LightSwitch":0}},"metadata":{"desired":{"LightSwitch":{"timestamp":1626319658}}}}", version = 4

    2. 上报更新过期望属性后的最新属性日志：

      重要 示例代码仅做演示，实际业务中，您需自行编写处理逻辑，实现自动更新接收的期望属性。 
      [1626317203.433][LK-0309] pub: /shadow/update/a1wP******/LightSwitch

[LK-030A] > 7B 22 6D 65 74 68 6F 64  22 3A 22 75 70 64 61 74 | {"method":"update",
[LK-030A] > 65 22 2C 22 73 74 61 74  65 22 3A 7B 22 72 65 70 | "state":{"rep
[LK-030A] > 6F 72 74 65 64 22 3A 7B  22 4C 69 67 68 74 53 77 | orted":{"LightSw
[LK-030A] > 69 74 63 68 22 3A 31 7D  7D 2C 22 76 65 72 73 69 | itch":0}},"versi
[LK-030A] > 6F 6E 22 3A 30 7D                                | on":1}

    3. 删除期望属性的日志：

      [1626320515.566][LK-0309] pub: /shadow/update/a1wP******/LightSwitch

[LK-030A] > 7B 22 6D 65 74 68 6F 64  22 3A 22 75 70 64 61 74 | {"method":"update",
[LK-030A] > 65 22 2C 22 73 74 61 74  65 22 3A 7B 22 64 65 73 | "state":{"des
[LK-030A] > 69 72 65 64 22 3A 22 6E  75 6C 6C 22 7D 2C 22 76 | ired":"null"},"v
[LK-030A] > 65 72 73 69 6F 6E 22 3A  35 7D                   | ersion":2}

    4. 删除期望属性的应答报文：

      [1626320515.600][LK-0309] pub: /shadow/get/a1wP******/LightSwitch

[LK-030A] < 7B 22 6D 65 74 68 6F 64  22 3A 22 72 65 70 6C 79 | {"method":"reply
[LK-030A] < 22 2C 22 70 61 79 6C 6F  61 64 22 3A 7B 22 73 74 | ","payload":{"st
[LK-030A] < 61 74 75 73 22 3A 22 73  75 63 63 65 73 73 22 2C | atus":"success",
[LK-030A] < 22 76 65 72 73 69 6F 6E  22 3A 35 7D 2C 22 63 6C | "version":5},"cl
[LK-030A] < 69 65 6E 74 54 6F 6B 65  6E 22 3A 22 6E 75 6C 6C | ientToken":"null
[LK-030A] < 22 2C 22 74 69 6D 65 73  74 61 6D 70 22 3A 31 36 | ","timestamp":16
[LK-030A] < 32 36 33 32 30 35 31 35  7D                      | 26320515}

[1626320515.600][LK-1304] SHADOW recv get_reply message
demo_shadow_recv_handler, type = 0, productKey = a1wP******, deviceName = LightSwitch
payload = "{"status":"success","version":5}", status = success, timestamp = 1626320515
  • 设备主动获取设备影子内容：

    • 发送查询属性的请求日志：

      [1626320690.499][LK-0309] pub: /shadow/update/a1wP******/LightSwitch

[LK-030A] > 7B 22 6D 65 74 68 6F 64  22 3A 22 67 65 74 22 7D | {"method":"get"}

    • 返回应答报文日志：

      该日志表示设备影子中，期望属性和上报属性均为空。

      [1626320690.522][LK-0309] pub: /shadow/get/a1wP******/LightSwitch

[LK-030A] < 7B 22 6D 65 74 68 6F 64  22 3A 22 72 65 70 6C 79 | {"method":"reply
[LK-030A] < 22 2C 22 70 61 79 6C 6F  61 64 22 3A 7B 22 73 74 | ","payload":{"st
[LK-030A] < 61 74 75 73 22 3A 22 73  75 63 63 65 73 73 22 2C | atus":"success",
[LK-030A] < 22 73 74 61 74 65 22 3A  7B 22 72 65 70 6F 72 74 | "state":{"report
[LK-030A] < 65 64 22 3A 7B 7D 7D 2C  22 6D 65 74 61 64 61 74 | ed":{}},"metadat
[LK-030A] < 61 22 3A 7B 22 72 65 70  6F 72 74 65 64 22 3A 7B | a":{"reported":{
[LK-030A] < 7D 7D 7D 2C 22 74 69 6D  65 73 74 61 6D 70 22 3A | }}},"timestamp":
[LK-030A] < 31 36 32 36 33 32 30 36  39 30 2C 22 76 65 72 73 | 1626320690,"vers
[LK-030A] < 69 6F 6E 22 3A 35 2C 22  63 6C 69 65 6E 74 54 6F | ion":5,"clientTo
[LK-030A] < 6B 65 6E 22 3A 22 6E 75  6C 6C 22 7D             | ken":"null"}

[1626320690.522][LK-1304] SHADOW recv generic_reply message
demo_shadow_recv_handler, type = 2, productKey = a1wP******, deviceName = LightSwitch
payload = "{"status":"success","state":{"reported":{}},"metadata":{"reported":{}}}", version = 5
  • 设备主动删除影子属性：

    1. 发送删除属性的请求日志：

      该请求日志表示删除所有属性。

      [1626321049.222][LK-0309] pub: /shadow/update/a1wP******/LightSwitch

[LK-030A] > 7B 22 6D 65 74 68 6F 64  22 3A 22 64 65 6C 65 74 | {"method":"delete",
[LK-030A] > 65 22 2C 22 73 74 61 74  65 22 3A 7B 22 72 65 70 | "state":{"rep
[LK-030A] > 6F 72 74 65 64 22 3A 7B  22 4C 69 67 68 74 53 77 | orted":{"LightSw
[LK-030A] > 69 74 63 68 22 3A 22 6E  75 6C 6C 22 7D 7D 2C 22 | itch":"null"}},"
[LK-030A] > 76 65 72 73 69 6F 6E 22  3A 39 7D                | version":2}

    2. 返回应答报文日志：

      该日志表示删除指令已发送成功。

      [1626321049.255][LK-0309] pub: /shadow/get/a1wP******/LightSwitch

[LK-030A] < 7B 22 6D 65 74 68 6F 64  22 3A 22 72 65 70 6C 79 | {"method":"reply
[LK-030A] < 22 2C 22 70 61 79 6C 6F  61 64 22 3A 7B 22 73 74 | ","payload":{"st
[LK-030A] < 61 74 75 73 22 3A 22 73  75 63 63 65 73 73 22 2C | atus":"success",
[LK-030A] < 22 76 65 72 73 69 6F 6E  22 3A 39 7D 2C 22 63 6C | "version":2},"cl
[LK-030A] < 69 65 6E 74 54 6F 6B 65  6E 22 3A 22 6E 75 6C 6C | ientToken":"null
[LK-030A] < 22 2C 22 74 69 6D 65 73  74 61 6D 70 22 3A 31 36 | ","timestamp":16
[LK-030A] < 32 36 33 32 31 30 34 39  7D                      | 26321049}

[1626321049.255][LK-1304] SHADOW recv get_reply message
demo_shadow_recv_handler, type = 0, productKey = a1wP******, deviceName = LightSwitch
payload = "{"status":"success","version":2}", status = success, timestamp = 1626321049

物联网平台日志

您可以在物联网平台控制台，查看设备的状态和运行日志。

  • 在线状态：

    在左侧导航栏，选择设备管理 > 设备，找到设备，查看设备状态。设备状态显示为在线，则表示设备与物联网平台成功连接。查看设备状态

  • 运行日志：

    在左侧导航栏，选择监控运维 > 日志服务，选择产品后，查看设备影子相关日志。设备影子日志