Unity实现MQTT服务器
首先下载MqttNet：MqttNet下载地址
解压好后使用vs打开，并生成.dll文件（我这里下载的是4.1.2.350版本）
然后再/Source/MQTTnet/bin/Debug/net452 文件夹中找到生成的文件
新建unity工程，创建Plugins文件夹，将文件复制到该文件夹内
然后新建脚本MyMqttServer，代码内带有注释
using MQTTnet.Adapter;
using MQTTnet.Server;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using MQTTnet;
using System.Threading.Tasks;
using System;
using System.Diagnostics.Tracing;
using System.Net;
using MQTTnet.Diagnostics;
using System.Text;
using MQTTnet.Protocol;
using static UnityEditor.ObjectChangeEventStream;
namespace MQTT.Server
{
///
/// 客户端信息
///
public class MqttClientObject
{
public MqttClientObject(string clientID, string userName = "", string password = "")
{
this.ClientID = clientID;
this.UserName = userName;
this.PassWord = password;
}
public string ClientID { get; set; }
public string UserName { get; set; }
public string PassWord { get; set; }
}
///
/// MQTT服务
///
public class MyMqttServer
{
///
/// 服务器对象
///
private MqttServer m_MqttServer = null;
///
/// Mqtt服务器选项生成器
///
MqttServerOptionsBuilder optionbuilder = null;
///
/// 连接的客户端
///
private List m_MqttClientObject = new List();
///
/// 开启服务器
///
///
public void StartMqttServer(int port = 1883)
{
//1.创建服务器对象
if (m_MqttServer == null)
{
//创建Mqtt服务器选项生成器
optionbuilder = new MqttFactory().CreateServerOptionsBuilder();
//设置带有默认终端
optionbuilder.WithDefaultEndpoint();
//设置终端端口号
optionbuilder.WithDefaultEndpointPort(port);
//设置具有持续会话
optionbuilder.WithPersistentSessions(true);
//设置无默认通信超时
optionbuilder.WithDefaultCommunicationTimeout(TimeSpan.FromMilliseconds(60000));
m_MqttServer = new MqttFactory().CreateMqttServer(optionbuilder.Build());
}
//监测服务器 开启/关闭
m_MqttServer.StartedAsync += ServerStarted;
m_MqttServer.StoppedAsync += ServerStoped;
//监测客户端 连接/断开连接
m_MqttServer.ClientConnectedAsync += ClientConnected;
m_MqttServer.ClientDisconnectedAsync += ClientDisconnected;
//监测客户端 订阅/取消订阅
m_MqttServer.ClientSubscribedTopicAsync += ClientSubscribedTopic;
m_MqttServer.ClientUnsubscribedTopicAsync += ClientUnSubscribedTopic;
//客户端连接信息验证
m_MqttServer.ValidatingConnectionAsync += ValidatingConnection;
//获取客户端发送的消息
m_MqttServer.InterceptingPublishAsync += InterceptingPublish;
//开启服务器
m_MqttServer.StartAsync();
}
///
/// 关闭服务
///
public void StopMqttServer()
{
if (m_MqttServer != null)
{
m_MqttServer.StopAsync();
}
}
///
/// 获取服务器状态--开启/关闭
///
///
/// 服务器完成开启
///
///
///
/// 服务器完成关闭
///
///
///
/// 客户端连接完成
///
///
///
/// 客户端订阅主题完成
///
///
///
/// 客户端取消订阅主题完成
///
///
///
/// 客户端断开连接完成
///
///
///
/// 客户端连接信息验证
///
///
///
/// 获取客户端发送的消息
///
///
///
/// 服务器广播消息
///
/// 主题
/// 信息
public void ServerPublich(string topic, string message, bool isRetain = false, MqttQualityOfServiceLevel level = MqttQualityOfServiceLevel.ExactlyOnce)
{
var builder = new MqttApplicationMessageBuilder().WithTopic(topic).WithPayload(message).WithRetainFlag(isRetain).WithQualityOfServiceLevel(level).Build();
var data = new InjectedMqttApplicationMessage(builder);
data.SenderClientId = "1";
m_MqttServer.InjectApplicationMessage(data);
}
}
}
创建脚本MyMqttClient，代码内带有注释
using MQTTnet;
using MQTTnet.Client;
using MQTTnet.Diagnostics;
using MQTTnet.Protocol;
using MQTTnet.Server;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using UnityEngine;
///
/// MQTT客户端
///
public class MyMqttClient
{
private IMqttClient m_MqttClient = null;
private string m_ClientID;
///
/// 创建客户端并连接服务器
///
///
///
///
public MyMqttClient(string clientID, string ip = "127.0.0.1", int port = 1883)
{
m_ClientID = clientID;
//客户端选项生成器
var options = new MqttClientOptionsBuilder()
.WithClientId(m_ClientID)
.WithTcpServer(ip, port)
.Build();
//创建客户端
m_MqttClient = new MqttFactory().CreateMqttClient();
//监测客户端 连接/断开连接 完成
m_MqttClient.ConnectedAsync += ClientConnected;
m_MqttClient.DisconnectedAsync += ClientDisConnected;
//客户端接收到消息
m_MqttClient.ApplicationMessageReceivedAsync += ReceiveMsg;
//连接服务器
m_MqttClient.ConnectAsync(options);
}
///
/// 接收到消息
///
///
///
/// 断开连接完成
///
///
///
/// 连接完成
///
///
///
/// 发布消息
///
public void PublishMsg(string topic, string message, MqttQualityOfServiceLevel level = MqttQualityOfServiceLevel.ExactlyOnce, bool isRetain = false)
{
m_MqttClient.PublishStringAsync(topic, message, level, isRetain);
}
///
/// 订阅主题
///
public void Subscribe(string topic)
{
m_MqttClient.SubscribeAsync(new MqttTopicFilterBuilder().WithTopic(topic).Build());
}
}
到这服务器与客户端脚本完成，接下来只需要写一些测试脚本，调用上面脚本的接口，即可完成服务器的开启/关闭，客户端连接，收发消息等功能。