public SubscribeClient(MqttEntity model)
{
string topic = model.topic;
string host = model.host;
// 实例化Mqtt客户端
MqttClient client = new MqttClient(host);
// 注册接收消息事件
client.MqttMsgPublishReceived += client_MqttMsgPublishReceived;
client.Connect(model.groupId + "@@@" + model.clientId, model.userName, model.password);
// 订阅主题 "/home/temperature"， 订阅质量 QoS 2
client.Subscribe(new string[] { topic }, new byte[] { MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE });
}
public MqttClientMain(IMqttService mqttService)
{
this.mqttService = mqttService;
mqttClient = new MqttFactory().CreateMqttClient();
var option = new MqttClientOptionsBuilder()
.WithCleanSession(true)
.WithClientId("Main client")
.WithCommunicationTimeout(TimeSpan.FromSeconds(5))
.WithKeepAlivePeriod(TimeSpan.FromSeconds(5))
.WithProtocolVersion(MqttProtocolVersion.V311)
.WithTcpServer("127.0.0.1", Convert.ToInt32(1883));
mqttClient.ConnectAsync(option.Build());
mqttClient.Connected += (sender, e) =>
{
string str = string.Format("Main Client connected");
Console.WriteLine(str);
};
mqttClient.Disconnected += (sender, e) =>
{
string str = string.Format("Main Client disconnected");
Console.WriteLine(str);
};
mqttClient.ApplicationMessageReceived += (sender, e) =>
{
string result = System.Text.Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
string str = string.Format("Main Client received message: {0}", result);
Console.WriteLine(str);
if (e.ApplicationMessage.Topic == "scale")
{
MqttEntity mqttEntity = JsonConvert.DeserializeObject <MqttEntity>(result);
mqttService.UpdateWeightFromScale(mqttEntity);
}
if (e.ApplicationMessage.Topic.ToLower().Contains("state"))
{
mqttService.UpdateOpenCabinet(e.ApplicationMessage.Topic.ToLower());
}
};
listTopic = new List <string>();
}
