源码下载地址：https://github.com/thingsboard/thingsboard-gateway
国内大神源码地址：https://github.com/guodaxia103/thingsboard-gateway
目前在国内有文章写出，Thingsboard Gateway是管理设备使用的，一个Thingsboard Gateway可以管理1000个设备，请参考：https://blog.csdn.net/Zzhou1990/article/details/100106995?tdsourcetag=s_pcqq_aiomsg
前提是Thingsboard开发环境搭建，请参考《Thingsboard开发环境搭建及编译项目》，因为Thingsboard Gateway也跟它相关
为了对Thingsboard有个概念，可以参考官方文档：https://thingsboard.io/docs/iot-gateway/what-is-iot-gateway/
下载源码，git bash命令
git clone https://github.com/guodaxia103/thingsboard-gateway
使用管理员身份打开命令行工具，并进入到项目目录
mvn clean install -Dmaven.test.skip=true
出现以下错误
E: b hingsboard-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
错误截图
原因是Thingsboard Gateway依赖的Thingsboard的版本不匹配
解决方案参考官方Issue：https://github.com/thingsboard/thingsboard-gateway/issues/26#issuecomment-381832965
首先，我们已经有了Thingsboard的开发环境，查看一下Thingsboard版本，这里是2.3.1
修改Thingsboard Gateway源码中的pom.xml文件，记得也修改为2.3.1
再次尝试编译
等待几分钟最终编译成功
编译成功后，在源码的目录下会生成target文件夹，里面的文件即是打包好的结果
其中tb-gateway-windows.zip是针对Windows平台的安装包
目前的状态如下
启动Thingsboard（在运行Thingsboard Gateway前，假使你已经知道了Thingsboard平台是如何运行的，也已经正常的编译成功源代码了）
使用租户管理员，登陆到系统，并创建一个设备，并指定为网关
进入到设备的属性中，将Access Token复制出来备用
目前的状态如下
Windows尝试安装Thingsboard Gateway，首先解压文件
打开Thingsboard Gateway目录下conf配置文件
修改配置文件内容
就使用刚才编译代码时的管理员身份打开的命令行窗口
#进入到指定的目录 cd target b-gateway-windows b-gateway #安装网关服务 install.bat #开始网关服务 net start tb-gateway
运行截图
目前的状态如下
进入到Thingsboard，查看网关的最后遥测数据，只要出现以下参数变为0，即Thingsboard Gateway与Thingsboard平台已经连接上了
#All values should be set to “0”（以下三个属性应该都是0） devicesOnline：0 attributesUploaded：0 telemetryUploaded：0
浏览器界面
目前的状态如下
尝试一下Thingsboard Gateway的功能先，首先使用最常用的MQTT协议
为了测试，我在本机也搭建了一个mosquitto环境，另外，也修改了mosquitto的端口为1884（找到文件C:Program Filesmosquittomosquitto.conf，找到节点port 1883，将1883修改成1884，并将前面的#删除，重启mosquitto服务让配置生效）
官方参考配置文件地址：https://thingsboard.io/docs/iot-gateway/resources/mqtt-gui-extension-configuration.json
文件内容：
[ { "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}" } ] } ] } } ]
进入到Thingsboard的网关中，查看配置，点击上传
将下载的json配置文件拖动到上传框，并点击上传
可以看到网关的状态为同步状态
查看其中的配置内容，请留意，现在的MQTT服务器是127.0.0.1，端口是1884，使用的就是本机安装mosquitto服务器
MQTTBox（下载地址：http://workswithweb.com/mqttbox.html）
创建一个连接，直接连接到本机的mosquitto上
然后在MQTTBox上发布一条消息，点击发送
#主题 sensors #消息体 {"serialNumber":"SN-001", "model":"T1000", "temperature":36.6}
刷新Thingsboard设备的列表，可以看到多了一个SN-001的设备
并且新加入的设置也是有遥测值的
新设备与网关进行了关联
如果需要设置设备在线或离线状态，需要发送主题sensor/设备编号/connect（离线，需要发送主题sensor/设备编号/disconnect）
目前的状态如下
即然本地MQTT Broker是可以的，那么远程的MQTT Broker呢？是否可用呢
在Thingsboard中修改网关的MQTT设置，并保存
再次使用MQTTBox测试
在Thingsboard设备列表中又增加了SN-002的设备，且已经有了遥测值
提醒，这里提醒一下，Thingsboard Gateway需要与Thingsboard配套使用，如果版本不同，则无法进行处理
最终理想的状态
