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README
MIT

mqtt

管理MQTT的连接,以及消息的订阅。

使用

首先生成配置:

import "gitee.com/xiaochengtech/mqtt"

conf := mqtt.Config{
	Broker:   "tcp://127.0.0.1:1883",
	ClientID: "client001",
}

然后生成一个全局的实例,注册需要订阅的消息,连接后会自动订阅:

import (
    "gitee.com/xiaochengtech/mqtt"
    gomqtt "github.com/eclipse/paho.mqtt.golang"
)

var instance = mqtt.Client{}

func init() {
    instance.Subscribe(mqtt.SubscribeType{ // 消息订阅
        Topic:      "topic/test",
        Qos:        byte(0),
        Callback:   TestMessageHandler,
        RetryTimes: 0,
    })
}

// TestMessageHandler函数定义格式如下
func TestMessageHandler(client gomqtt.Client, message gomqtt.Message) {
    // ...
}

其中RetryTimes表示订阅失败后的重试次数,如果为0,则表示一直重试下去。

最后使用初始化方法连接到MQTT的Broker上:

opts := mqtt.GetClientOptions(&conf)
opts.Username = "username"
opts.Password = "password"
opts.SetWill(topic, "client_dead", 0, true)
opts.SetKeepAlive(10 * time.Second)
opts.SetPingTimeout(5 * time.Second)
// ...
opts.SetOnConnectHandler(...) // 设置自定义的连接后处理方法
opts.SetConnectionLostHandler(...) // 设置自定义的断开连接后处理方法
if err := instance.Init(opts); err != nil {
    log.Fatal("初始化失败")
} else {
    log.Println("初始化成功")
}
MIT License Copyright (c) 2019 XiaochengTech Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

简介

MQTT封装库,自动订阅,事件分发。 展开 收起
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MIT
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