源碼下載地址：https://github.com/thingsboard/thingsboard-gateway
國內大神源碼地址：https://github.com/guodaxia103/thingsboard-gateway
目前在國內有文章寫出，Thingsboard Gateway是管理設備使用的，一個Thingsboard Gateway可以管理1000個設備，請參考：https://blog.csdn.net/Zzhou1990/article/details/100106995?tdsourcetag=s_pcqq_aiomsg
前提是Thingsboard開發環境搭建，請參考《Thingsboard開發環境搭建及編譯項目》，因為Thingsboard Gateway也跟它相關
為了對Thingsboard有個概念，可以參考官方文檔：https://thingsboard.io/docs/iot-gateway/what-is-iot-gateway/
下載源碼，git bash命令
git clone https://github.com/guodaxia103/thingsboard-gateway
使用管理員身份打開命令行工具，並進入到項目目錄
mvn clean install -Dmaven.test.skip=true
出現以下錯誤
E:\tb\thingsboard-gateway>mvn clean install -Dmaven.test.skip=true [INFO] Scanning for projects... [INFO] [INFO] ----------------------< org.thingsboard:gateway >----------------------- [INFO] Building Thingsboard Gateway 2.3.1-SNAPSHOT [INFO] --------------------------------[ jar ]--------------------------------- [WARNING] The POM for org.thingsboard.common:data:jar:2.4.1-SNAPSHOT is missing, no dependency information available [WARNING] The POM for org.thingsboard:netty-mqtt:jar:2.4.1-SNAPSHOT is missing, no dependency information available [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.575 s [INFO] Finished at: 2019-09-26T13:35:35+08:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal on project gateway: Could not resolve dependencies for project org.thingsboard:gateway:jar:2.3.1-SNAPSHOT: The following artifacts could not be resolved: org.thingsboard.common:data:jar:2.4.1-SNAPSHOT, org.thingsboard:netty-mqtt:jar:2.4.1-SNAPSHOT: Could not find artifact org.thingsboard.common:data:jar:2.4.1-SNAPSHOT -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
錯誤截圖
原因是Thingsboard Gateway依賴的Thingsboard的版本不匹配
解決方案參考官方Issue：https://github.com/thingsboard/thingsboard-gateway/issues/26#issuecomment-381832965
首先，我們已經有了Thingsboard的開發環境，查看一下Thingsboard版本，這里是2.3.1
修改Thingsboard Gateway源碼中的pom.xml文件，記得也修改為2.3.1
再次嘗試編譯
等待幾分鍾最終編譯成功
編譯成功后，在源碼的目錄下會生成target文件夾，里面的文件即是打包好的結果
其中tb-gateway-windows.zip是針對Windows平台的安裝包
目前的狀態如下
啟動Thingsboard（在運行Thingsboard Gateway前，假使你已經知道了Thingsboard平台是如何運行的，也已經正常的編譯成功源代碼了）
使用租戶管理員，登陸到系統，並創建一個設備，並指定為網關
進入到設備的屬性中，將Access Token復制出來備用
目前的狀態如下
Windows嘗試安裝Thingsboard Gateway，首先解壓文件
打開Thingsboard Gateway目錄下conf配置文件
修改配置文件內容
就使用剛才編譯代碼時的管理員身份打開的命令行窗口
#進入到指定的目錄 cd target\tb-gateway-windows\tb-gateway #安裝網關服務 install.bat #開始網關服務 net start tb-gateway
運行截圖
目前的狀態如下
進入到Thingsboard，查看網關的最后遙測數據，只要出現以下參數變為0，即Thingsboard Gateway與Thingsboard平台已經連接上了
#All values should be set to “0”（以下三個屬性應該都是0） devicesOnline：0 attributesUploaded：0 telemetryUploaded：0
瀏覽器界面
目前的狀態如下
嘗試一下Thingsboard Gateway的功能先，首先使用最常用的MQTT協議
為了測試，我在本機也搭建了一個mosquitto環境，另外，也修改了mosquitto的端口為1884（找到文件C:\Program Files\mosquitto\mosquitto.conf，找到節點port 1883，將1883修改成1884，並將前面的#刪除，重啟mosquitto服務讓配置生效）
官方參考配置文件地址：https://thingsboard.io/docs/iot-gateway/resources/mqtt-gui-extension-configuration.json
文件內容：
[ { "id": "mqtt", "type": "MQTT", "configuration": { "brokers": [ { "host": "127.0.0.1", "port": 1884, "ssl": false, "retryInterval": 3000, "credentials": { "type": "anonymous" }, "mapping": [ { "topicFilter": "sensors", "converter": { "type": "json", "filterExpression": "$", "deviceNameJsonExpression": "${$.serialNumber}", "deviceTypeJsonExpression": "${$.model}", "attributes": [ { "type": "string", "key": "model", "value": "${$.model}" } ], "timeseries": [ { "type": "double", "key": "temperature", "value": "${$.temperature}" } ] } }, { "topicFilter": "sensor/+/temperature", "converter": { "type": "json", "filterExpression": "$", "deviceNameTopicExpression": "(?<=sensor/)(.*?)(?=/temperature)", "timeout": 60000, "timeseries": [ { "type": "double", "key": "temperature", "value": "${$.value}" } ] } } ], "connectRequests": [ { "topicFilter": "sensors/connect", "deviceNameJsonExpression": "${$.serialNumber}" }, { "topicFilter": "sensor/+/connect", "deviceNameTopicExpression": "(?<=sensor/)(.*?)(?=/connect)" } ], "disconnectRequests": [ { "topicFilter": "sensors/disconnect", "deviceNameJsonExpression": "${$.serialNumber}" }, { "topicFilter": "sensor/+/disconnect", "deviceNameTopicExpression": "(?<=sensor/)(.*?)(?=/disconnect)" } ], "attributeRequests": [ { "topicFilter": "sensors/attributes", "deviceNameJsonExpression": "${$.serialNumber}", "attributeKeyJsonExpression": "${$.key}", "requestIdJsonExpression": "${$.requestId}", "clientScope": false, "responseTopicExpression": "sensors/${deviceName}/attributes/${responseId}", "valueExpression": "{\"${attributeKey}\":\"${attributeValue}\"}" }, { "topicFilter": "sensors/+/attributes/+/request/+", "deviceNameTopicExpression": "(?<=sensors/)(.*?)(?=/attributes)", "attributeKeyTopicExpression": "(?<=attributes/)(.*?)(?=/request)", "requestIdTopicExpression": "(?<=request/)(.*?)($)", "clientScope": false, "responseTopicExpression": "sensors/${deviceName}/attributes/${attributeKey}/response/${requestId}", "valueExpression": "${attributeValue}" } ], "attributeUpdates": [ { "deviceNameFilter": ".*", "attributeFilter": ".*", "topicExpression": "sensor/${deviceName}/${attributeKey}", "valueExpression": "{\"${attributeKey}\":\"${attributeValue}\"}" } ], "serverSideRpc": [ { "deviceNameFilter": ".*", "methodFilter": "echo", "requestTopicExpression": "sensor/${deviceName}/request/${methodName}/${requestId}", "responseTopicExpression": "sensor/${deviceName}/response/${methodName}/${requestId}", "responseTimeout": 10000, "valueExpression": "${params}" }, { "deviceNameFilter": ".*", "methodFilter": "no-reply", "requestTopicExpression": "sensor/${deviceName}/request/${methodName}/${requestId}", "valueExpression": "${params}" } ] } ] } } ]
進入到Thingsboard的網關中，查看配置，點擊上傳
將下載的json配置文件拖動到上傳框，並點擊上傳
可以看到網關的狀態為同步狀態
查看其中的配置內容，請留意，現在的MQTT服務器是127.0.0.1，端口是1884，使用的就是本機安裝mosquitto服務器
MQTTBox（下載地址：http://workswithweb.com/mqttbox.html）
創建一個連接，直接連接到本機的mosquitto上
然后在MQTTBox上發布一條消息，點擊發送
#主題 sensors #消息體 {"serialNumber":"SN-001", "model":"T1000", "temperature":36.6}
刷新Thingsboard設備的列表，可以看到多了一個SN-001的設備
並且新加入的設置也是有遙測值的
新設備與網關進行了關聯
如果需要設置設備在線或離線狀態，需要發送主題sensor/設備編號/connect（離線，需要發送主題sensor/設備編號/disconnect）
目前的狀態如下
即然本地MQTT Broker是可以的，那么遠程的MQTT Broker呢？是否可用呢
在Thingsboard中修改網關的MQTT設置，並保存
再次使用MQTTBox測試
在Thingsboard設備列表中又增加了SN-002的設備，且已經有了遙測值
提醒，這里提醒一下，Thingsboard Gateway需要與Thingsboard配套使用，如果版本不同，則無法進行處理
最終理想的狀態
