MqttSubscribeMessage 类 |
订阅的消息类，用于客户端向服务器请求订阅的信息
Subscribed message class, used by the client to request subscription information from the server
Subscribed message class, used by the client to request subscription information from the server
继承层次SystemObject
HslCommunication.MQTTMqttSubscribeMessage
HslCommunication.MQTTMqttSubscribeMessage
命名空间： HslCommunication.MQTT
程序集： HslCommunication (在 HslCommunication.dll 中) 版本：12.1.2.0 (12.1.2.0)
语法MqttSubscribeMessage 类型公开以下成员。
构造函数| 名称 | 说明 | |
|---|---|---|
 | MqttSubscribeMessage |
实例化一个默认的对象 Instantiate a default object |
属性| 名称 | 说明 | |
|---|---|---|
 | Identifier |
当前的消息的标识符，当质量等级为0的时候，不需要重发以及考虑标识情况 The identifier of the current message, when the quality level is 0, do not need to retransmit and consider the identification situation |
| QualityOfServiceLevel |
这个字段表示应用消息分发的服务质量等级保证。分为，最多一次，最少一次，正好一次 This field indicates the quality of service guarantee for application message distribution. Divided into, at most once, at least once, exactly once |
| Topics |
当前订阅的所有的主题的数组信息 Array information of all topics currently subscribed |
方法| 名称 | 说明 | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (继承自 Object。) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (继承自 Object。) |
| GetHashCode | Serves as the default hash function. (继承自 Object。) |
| GetType | Gets the Type of the current instance. (继承自 Object。) |
| MemberwiseClone | Creates a shallow copy of the current Object. (继承自 Object。) |
| ToString | Returns a string that represents the current object. (重写 ObjectToString.) |
扩展方法| 名称 | 说明 | |
|---|---|---|
 | ToJsonString |
获取当前对象的JSON格式表示的字符串。 (由 HslExtension 定义。)Gets the string represented by the JSON format of the current object. |
参见