private async Task ConnectMqttServerAsync()
{
if (mqttClient == null)
{
mqttClient = new MqttClientFactory().CreateMqttClient() as MqttClient;
mqttClient.ApplicationMessageReceived += MqttClient_ApplicationMessageReceived;
mqttClient.Connected += MqttClient_Connected;
mqttClient.Disconnected += MqttClient_Disconnected;
}
try
{
var options = new MqttClientTcpOptions
{
Server = "127.0.0.1",
ClientId = Guid.NewGuid().ToString().Substring(0, 5),
UserName = "******",
Password = "******",
CleanSession = true
};
await mqttClient.ConnectAsync(options);
}
catch (Exception ex)
{
Application.Current.Dispatcher.Invoke((new Action(() =>
{
txtReceiveMessage.AppendText($"连接到MQTT服务器失败！" + Environment.NewLine + ex.Message + Environment.NewLine);
})));
}
}
public static async Task ConnectMqttServerAsync()
{
if (mqttClient == null)
{
mqttClient = new MqttClientFactory().CreateMqttClient() as MqttClient;
//mqttClient.ApplicationMessageReceived += MqttClient_ApplicationMessageReceived;
mqttClient.Connected += MqttClient_Connected;
mqttClient.Disconnected += MqttClient_Disconnected;
}
try
{
var options = new MqttClientTcpOptions
{
Server = "114.55.171.95",
//Server = "127.0.0.1",
ClientId = Guid.NewGuid().ToString().Substring(0, 5),
UserName = "******",
Password = "******",
CleanSession = true
};
await mqttClient.ConnectAsync(options);
}
catch (Exception ex)
{
Console.WriteLine($"连接到MQTT服务器失败！" + Environment.NewLine + ex.Message + Environment.NewLine);
}
//Publish("[email protected]:App", "空调,false,off");
}
/// <summary>
///
/// </summary>
private static void Work()
{
running = true;
Console.WriteLine("Work >>Begin");
try
{
var factory = new MqttFactory();
mqttClient = factory.CreateMqttClient() as MqttClient;
options = new MqttClientOptionsBuilder()
.WithTcpServer(ServerUrl, Port)
.WithCredentials(UserId, Password)
.WithClientId(Guid.NewGuid().ToString().Substring(0, 5))
.Build();
mqttClient.ConnectAsync(options);
mqttClient.ConnectedHandler = new MqttClientConnectedHandlerDelegate(new Func <MqttClientConnectedEventArgs, Task>(Connected));
mqttClient.DisconnectedHandler = new MqttClientDisconnectedHandlerDelegate(new Func <MqttClientDisconnectedEventArgs, Task>(Disconnected));
mqttClient.ApplicationMessageReceivedHandler = new MqttApplicationMessageReceivedHandlerDelegate(new Action <MqttApplicationMessageReceivedEventArgs>(MqttApplicationMessageReceived));
while (runState)
{
System.Threading.Thread.Sleep(100);
}
}
catch (Exception exp)
{
Console.WriteLine(exp);
}
Console.WriteLine("Work >>End");
running = false;
runState = false;
}
/// <summary>
/// 发布
/// <paramref name="QoS"/>
/// <para>0 - 最多一次</para>
/// <para>1 - 至少一次</para>
/// <para>2 - 仅一次</para>
/// </summary>
/// <param name="Topic">发布主题</param>
/// <param name="Message">发布内容</param>
/// <returns></returns>
public static void Publish(string Topic, string Message)
{
try
{
if (mqttClient == null)
{
return;
}
if (mqttClient.IsConnected == false)
{
mqttClient.ConnectAsync(options);
}
if (mqttClient.IsConnected == false)
{
Console.WriteLine("Publish >>Connected Failed! ");
return;
}
Console.WriteLine("Publish >>Topic: " + Topic + "; QoS: " + QualityOfServiceLevel + "; Retained: " + Retained + ";");
Console.WriteLine("Publish >>Message: " + Message);
MqttApplicationMessageBuilder mamb = new MqttApplicationMessageBuilder()
.WithTopic(Topic)
.WithPayload(Message).WithRetainFlag(Retained);
if (QualityOfServiceLevel == 0)
{
mamb = mamb.WithAtMostOnceQoS();
}
else if (QualityOfServiceLevel == 1)
{
mamb = mamb.WithAtLeastOnceQoS();
}
else if (QualityOfServiceLevel == 2)
{
mamb = mamb.WithExactlyOnceQoS();
}
mqttClient.PublishAsync(mamb.Build());
}
catch (Exception exp)
{
Console.WriteLine("Publish >>" + exp.Message);
}
}
