CZGL.AliIoTClient 有7个委托事件，设置了默认的方法。 你可以通过下面的方法使用默认的方法绑定到委托事件中。
public void UseDefaultEventHandler()
1）默认的方法
收到服务器下发属性设置时：
public void Default_PubPropertyEventHandler(object sender, MqttMsgPublishEventArgs e)
收到服务器调用服务命令时：
public void Default_PubServiceEventHandler(object sender, MqttMsgPublishEventArgs e)
收到普通Topic、上传数据的响应等其它情况：
public void Default_PubCommonEventHandler(object sender, MqttMsgPublishEventArgs e)
收到服务器QOS为1的推送
public void Default_PubedEventHandler(object sender, MqttMsgPublishedEventArgs e)
当向服务器发送消息成功时：
public void Default_SubedEventHandler(object sender, MqttMsgSubscribedEventArgs e)
向服务器推送消息失败时：
public void Default_UnSubedEventHandler(object sender, MqttMsgUnsubscribedEventArgs e)
连接断开时
public void Default_ConnectionClosedEventHandler(object sender, System.EventArgs e)
2）方法的写法
不同的委托参数不同，有好几种类型，参考笔者的方法使用参数。
/// 一般的推送 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_PubCommonEventHandler(object sender, MqttMsgPublishEventArgs e) { // handle message received string topic = e.Topic; string message = Encoding.ASCII.GetString(e.Message); Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("get topic message,Date: " + DateTime.Now.ToLongTimeString()); Console.WriteLine("topic: " + topic); Console.WriteLine("get messgae :\n" + message); } /// <summary> /// 收到属性设置 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_PubPropertyEventHandler(object sender, MqttMsgPublishEventArgs e) { // handle message received string topic = e.Topic; string message = Encoding.ASCII.GetString(e.Message); Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("get topic message,Date: " + DateTime.Now.ToLongTimeString()); Console.WriteLine("topic: " + topic); Console.WriteLine("get messgae :\n" + message); } /// <summary> /// 收到服务调用 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_PubServiceEventHandler(object sender, MqttMsgPublishEventArgs e) { // handle message received string topic = e.Topic; string message = Encoding.ASCII.GetString(e.Message); Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("get topic message,Date: " + DateTime.Now.ToLongTimeString()); Console.WriteLine("topic: " + topic); Console.WriteLine("get messgae :\n" + message); } /// <summary> /// 收到服务器QOS为1的推送 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_PubedEventHandler(object sender, MqttMsgPublishedEventArgs e) { Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("published,Date: " + DateTime.Now.ToLongTimeString()); Console.WriteLine("MessageId: " + e.MessageId + " Is Published: " + e.IsPublished); } /// <summary> /// 向服务器推送成功 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_SubedEventHandler(object sender, MqttMsgSubscribedEventArgs e) { Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("Sub topic,Date: " + DateTime.Now.ToLongTimeString()); Console.WriteLine("MessageId: " + e.MessageId); Console.WriteLine("List of granted QOS Levels: " + Encoding.UTF8.GetString(e.GrantedQoSLevels)); } /// <summary> /// 推送失败 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_UnSubedEventHandler(object sender, MqttMsgUnsubscribedEventArgs e) { Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("Sub topic error,Date: " + DateTime.Now.ToLongTimeString()); Console.WriteLine("MessageId: " + e.MessageId); } /// <summary> /// 连接发生异常，断网等 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public void Default_ConnectionClosedEventHandler(object sender, EventArgs e) { Console.WriteLine("- - - - - - - - - - "); Console.WriteLine("Connect Closed error,Date: " + DateTime.Now.ToLongTimeString()); }
