Unity的MQTT简单的Demo以及简单的代码介绍

Unity的MQTT简单的Demo以及简单的代码介绍

Github下载地址

https://github.com/laurentva/Pozyx-Unity-MQTT

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连接代码

1. 下载之后使用UnityHub打开项目
2. 打开Mqtt_Test

using UnityEngine;
using System.Net;
using uPLibrary.Networking.M2Mqtt;
using uPLibrary.Networking.M2Mqtt.Messages;
using System;

public class mqttTest : MonoBehaviour {
	private MqttClient client;
	// Use this for initialization
	void Start () {
		// create client instance 
		client = new MqttClient(IPAddress.Parse("143.185.118.233"),8080 , false , null ); //创建一个MQTT客户端连接

		// register to message received 
		client.MqttMsgPublishReceived += client_MqttMsgPublishReceived; //接收数据
		
		string clientId = Guid.NewGuid().ToString(); //随机一个ClientID
		client.Connect(clientId); //连接到MQTT服务器
		
		// subscribe to the topic "/home/temperature" with QoS 2 
		client.Subscribe(new string[] { "hello/world" }, new byte[] { MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE }); //订阅主题并设置订阅的方式
		//主题是hello/world

	}
	///接收到消息推送
	void client_MqttMsgPublishReceived(object sender, MqttMsgPublishEventArgs e) 
	{ 
		Debug.Log("Received: " + System.Text.Encoding.UTF8.GetString(e.Message)  );
	} 


	void OnGUI(){
		if ( GUI.Button (new Rect (20,40,80,20), "Level 1")) {
			Debug.Log("sending...");
			client.Publish("hello/world", System.Text.Encoding.UTF8.GetBytes("Sending from Unity3D!!!"), MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE, true);//发送消息
			
			Debug.Log("sent");
		}
	}
}

代码修改

代码修改了IP，这样就可以使用公开的MQTT服务进行测试了

using UnityEngine;
using System.Net;
using uPLibrary.Networking.M2Mqtt;
using uPLibrary.Networking.M2Mqtt.Messages;
using System;

public class mqttTest : MonoBehaviour {
	private MqttClient client;
	// Use this for initialization
	void Start () {
	
        IPHostEntry host = Dns.GetHostByName("test.ranye-iot.net");//根据域名获取ip，这里使用的是一个免费的MQTT服务器
        IPAddress ip = host.AddressList[0];
       string ipStr= ip.ToString();
       
		client = new MqttClient(IPAddress.Parse(ipStr), 1883, false, null);//连接



		// register to message received 
		client.MqttMsgPublishReceived += client_MqttMsgPublishReceived; //接收数据
		
		string clientId = Guid.NewGuid().ToString(); //随机一个ClientID
		client.Connect(clientId); //连接到MQTT服务器
		
		// subscribe to the topic "/home/temperature" with QoS 2 
		client.Subscribe(new string[] { "hello/world" }, new byte[] { MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE }); //订阅主题并设置订阅的方式
		//主题是hello/world

	}
	///接收到消息推送
	void client_MqttMsgPublishReceived(object sender, MqttMsgPublishEventArgs e) 
	{ 
		Debug.Log("Received: " + System.Text.Encoding.UTF8.GetString(e.Message)  );
	} 


	void OnGUI(){
		if ( GUI.Button (new Rect (20,40,80,20), "Level 1")) {
			Debug.Log("sending...");
			client.Publish("hello/world", System.Text.Encoding.UTF8.GetBytes("Sending from Unity3D!!!"), MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE, true);//发送消息
	
		}
	}
}

具体的东西在Github的下载地址里面有作者写的更加详细的说明。

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。