ChannelHandlerSub (yyds-mqtt-starter 2.0.20.RELEASE API)

```
public class ChannelHandlerSub
extends Object
```
Created by mystoxlol on 2019/8/20, 10:09. company: mystox description: 处理一些mqtt的接口操作 update record:

Constructors
Constructor and Description
`ChannelHandlerSub(org.springframework.integration.core.MessageProducer messageProducer)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addSubTopic(String... topics)`
`void`	`addSubTopic(String topic, int qos)`
`boolean`	`isExists(String topic)`
`void`	`removeSubTopic(String... topic)`

public ChannelHandlerSub(@Qualifier(value="inbound")
                         org.springframework.integration.core.MessageProducer messageProducer)

public void addSubTopic(String topic,
                        int qos)

public void addSubTopic(String... topics)

public void removeSubTopic(String... topic)

public boolean isExists(String topic)

Class ChannelHandlerSub