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:\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

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\tb-gateway-windows\tb-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 Files\mosquitto\mosquitto.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}"
            }
          ]
        }
      ]
    }
  }
]

View Code

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