MqttServer 类

public class MqttServer : NetworkServerBase, IDisposable

Public Class MqttServer
	Inherits NetworkServerBase
	Implements IDisposable

public ref class MqttServer : public NetworkServerBase, 
	IDisposable

type MqttServer =  
    class
        inherit NetworkServerBase
        interface IDisposable
    end

MqttServer server;
public void Start( )
{
    try
    {
        server = new MqttServer( );
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}

MqttServer server;
public void Start( )
{
    try
    {
        server = new MqttServer( );
        server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
        {
            if (userName == "admin" && passwrod == "123456") return 0;
            return 4;

            // 返回错误码说明 Return error code description
            // 1: unacceptable protocol version
            // 2: identifier rejected
            // 3: server unavailable
            // 4: bad user name or password
            // 5: not authorized
        };
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}

server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
{
    if (userName == "admin" && passwrod == "123456") { session.ClientId = "admin"; return 0; }
    if (userName == "hsl" && passwrod == "123456") { session.ClientId = "GM"; return 0; }  // 也可以写入中文总经理，方便后续其他接口的权限限制
    return 4;

    // 返回错误码说明 Return error code description
    // 1: unacceptable protocol version
    // 2: identifier rejected
    // 3: server unavailable
    // 4: bad user name or password
    // 5: not authorized
};

server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
{
    if (userName == "admin" && passwrod == "123456") { return 0; } // admin 账户允许发布  admin Account allows posting
    if (userName == "hsl" && passwrod == "123456") { session.ForbidPublishTopic = true; return 0; } // 禁止发布 Prohibit posting
    return 4; // 其他账户不允许登录 Other accounts are not allowed to log in

    // 返回错误码说明 Return error code description
    // 1: unacceptable protocol version
    // 2: identifier rejected
    // 3: server unavailable
    // 4: bad user name or password
    // 5: not authorized
};

MqttServer server;
public void Start( )
{
    try
    {
        server = new MqttServer( );
        server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
        {
            if (userName == "admin" && passwrod == "123456") return 0;
            return 4;
        };
        server.OnClientApplicationMessageReceive += ( MqttSession session, MqttClientApplicationMessage message ) =>
        {
            // 此处举例是打印，当然了，你也可以做一些其他的处理，当所有的客户端进行发布操作的时候，就会触发当前的方法
            // The example here is printing. Of course, you can also do some other processing. When all clients perform publishing operations, the current method will be triggered.
            Console.WriteLine( $"ClientId:[{message.ClientId}] Topic:[{message.Topic}] Payload: {Encoding.UTF8.GetString( message.Payload )}" );

            // 如果你想阻止当前的消息推送给客户端，那么可以按照下面的操作
            // If you want to prevent the current message from being pushed to the client, then you can follow
            message.IsCancelPublish = true;
        };
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}

MqttServer server;
public void Start( )
{
    try
    {
        server = new MqttServer( );
        server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
        {
            if (userName == "admin" && passwrod == "123456") return 0;
            return 5;
        };
        server.OnClientApplicationMessageReceive += ( MqttSession session, MqttClientApplicationMessage message ) =>
        {
            // 此处举例是打印，当然了，你也可以做一些其他的处理，当所有的客户端进行发布操作的时候，就会触发当前的方法
            // The example here is printing. Of course, you can also do some other processing. When all clients perform publishing operations, the current method will be triggered.
            Console.WriteLine( $"ClientId:[{message.ClientId}] Topic:[{message.Topic}] Payload: {Encoding.UTF8.GetString( message.Payload )}" );

            // 如果你想阻止当前的消息推送给客户端，那么可以按照下面的操作
            // If you want to prevent the current message from being pushed to the client, then you can follow
            message.IsCancelPublish = true;
        };
        server.OnClientConnected += ( MqttSession session ) =>
        {
            // 当客户端连接上服务器的时候触发，你可以做一些额外的数据处理，或是情况处理。比如发送一条消息出去
            // Triggered when the client connects to the server, you can do some additional data processing or situation processing. Such as sending a message out
            server.PublishTopicPayload( session, "Online", Encoding.UTF8.GetBytes( "Thank you for use hsl" ) );
        };
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}

public void button1_Click( object sender, EventArgs e )
{
    // 此处示例是发布给指定的主题
    // The example here is posted to the specified topic
    server.PublishTopicPayload( "Topic", Encoding.UTF8.GetBytes( "Test Data" ) );

    // 此处示例是发布给指定的clientId
    // The example here is posted to the specified clientId
    server.PublishTopicPayload( "ClientId1", "Topic", Encoding.UTF8.GetBytes( "Test Data" ) );

    // 此处的示例是发布给所有的客户端，不管这个客户端有没有订阅相关的主题
    // The example here is published to all clients, regardless of whether the client is subscribed to related topics
    server.PublishAllClientTopicPayload( "Topic", Encoding.UTF8.GetBytes( "Test Data" ) );




    // 如果要消息驻留，意思就是当其他的客户端订阅了驻留的主题，会立即收到一条最后更新的数据内容，那么上面的代码可以修改成下面的形式
    // If you want the message to reside, it means that when other clients subscribe to the resident topic, they will immediately receive a last updated data content, then the above code can be modified into the following form
    server.PublishTopicPayload( "Topic", Encoding.UTF8.GetBytes( "Test Data" ), true );
    server.PublishTopicPayload( "ClientId1", "Topic", Encoding.UTF8.GetBytes( "Test Data" ), true );
    server.PublishAllClientTopicPayload( "Topic", Encoding.UTF8.GetBytes( "Test Data" ), true );
}

MqttServer server;
public void Start( )
{
    try
    {
        server = new MqttServer( );
        server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
        {
            if (userName == "admin" && passwrod == "123456") return 0;
            return 4;
        };
        server.OnClientApplicationMessageReceive += ( MqttSession session, MqttClientApplicationMessage message ) =>
        {
            if (session.Protocol == "MQTT")
            {
                // 正常的MQTT协议的内容，进行发布订阅操作

                // 此处举例是打印，当然了，你也可以做一些其他的处理，当所有的客户端进行发布操作的时候，就会触发当前的方法
                // The example here is printing. Of course, you can also do some other processing. When all clients perform publishing operations, the current method will be triggered.
                Console.WriteLine( $"ClientId:[{message.ClientId}] Topic:[{message.Topic}] Payload: {Encoding.UTF8.GetString( message.Payload )}" );

                // 如果你想阻止当前的消息推送给客户端，那么可以按照下面的操作
                // If you want to prevent the current message from being pushed to the client, then you can follow
                message.IsCancelPublish = true;
            }
            else
            {
                // 同步网络的情况，正常情况都是需要返回信息的，否则客户端就会引发接收超时的异常
                // In the case of synchronous network, the normal situation is to return information, otherwise the client will cause an exception of receiving timeout
                if (message.Topic == "GetA")
                {
                    server.PublishTopicPayload( session, "Success", Encoding.UTF8.GetBytes( "这是你获取的数据A" ) );
                }
                else if (message.Topic == "GetB")
                {
                    server.PublishTopicPayload( session, "Success", Encoding.UTF8.GetBytes( "这是你获取的数据B" ) );
                }
                else
                {
                    // 如果需要返回错误的信息，客户端直接IsSuccess为False，然后这个Message就是下面的字符串
                    // If you need to return wrong information, the client directly IsSuccess is False, and then this Message is the following string
                    server.ReportOperateResult( session, "当前的操作不支持" );
                }
            }
        };
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}

MqttServer server;
SiemensS7Net siemens;

public void Start( )
{
    try
    {
        siemens = new SiemensS7Net( SiemensPLCS.S1200, "127.0.0.1" );

        server = new MqttServer( );
        server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
        {
            if (userName == "admin" && passwrod == "123456") return 0;
            return 4;
        };
        server.OnClientApplicationMessageReceive += ( MqttSession session, MqttClientApplicationMessage message ) =>
        {
            if (session.Protocol == "MQTT")
            {
                // 正常的MQTT协议的内容，进行发布订阅操作

                // 此处举例是打印，当然了，你也可以做一些其他的处理，当所有的客户端进行发布操作的时候，就会触发当前的方法
                // The example here is printing. Of course, you can also do some other processing. When all clients perform publishing operations, the current method will be triggered.
                Console.WriteLine( $"ClientId:[{message.ClientId}] Topic:[{message.Topic}] Payload: {Encoding.UTF8.GetString( message.Payload )}" );

                // 如果你想阻止当前的消息推送给客户端，那么可以按照下面的操作
                // If you want to prevent the current message from being pushed to the client, then you can follow
                message.IsCancelPublish = true;
            }
            else
            {
                // 同步网络的情况，正常情况都是需要返回信息的，否则客户端就会引发接收超时的异常
                // In the case of synchronous network, the normal situation is to return information, otherwise the client will cause an exception of receiving timeout
                if (message.Topic == "GetA")
                {
                    server.PublishTopicPayload( session, "Success", Encoding.UTF8.GetBytes( "这是你获取的数据A" ) );
                }
                else if (message.Topic == "GetB")
                {
                    server.PublishTopicPayload( session, "Success", Encoding.UTF8.GetBytes( "这是你获取的数据B" ) );
                }
                else
                {
                    // 如果需要返回错误的信息，客户端直接IsSuccess为False，然后这个Message就是下面的字符串
                    // If you need to return wrong information, the client directly IsSuccess is False, and then this Message is the following string
                    server.ReportOperateResult( session, "当前的操作不支持" );
                }
            }
        };

        // 注册当前的服务，当下面所有的带特性HslMqttApi的方法都暴露出来，其中，设备温度仅支持admin账户设定
        // Register the current service, when all the following methods with characteristic HslMqttApi are exposed, 
        // the device temperature only supports the admin account setting
        server.RegisterMqttRpcApi( this );
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}

[HslMqttApi( "启动设备" )]
public OperateResult StartDevice( ) => siemens.Write( "M100.0", true );

[HslMqttApi( "停止设备" )]
public OperateResult StopDevice( ) => siemens.Write( "M100.0", false );

[HslMqttApi( "设置设备的温度信息，当设备处于非工作状态才有效，仅允许admin账户设置" )]
[HslMqttPermission( UserName = "admin" )]
public OperateResult SetTemperature( float temp )
{
    // 此处假设设置PLC的温度，当设备停止的时候才能设备
    var check = siemens.ReadBool( "M100.0" ).Check( m => m == false, "当前的设备状态在运行中，无法设置！" );
    if (!check.IsSuccess) return OperateResult.CreateFailedResult<string>( check );

    return siemens.Write( "M200", temp );
}

[HslMqttApi( "读取设备的温度信息" )]
public OperateResult<float> ReadTemperature( ) => siemens.ReadFloat( "M200" );

MqttServer server;
public void Start( )
{
    try
    {
        server = new MqttServer( );
        server.ClientVerification += ( MqttSession session, string clientId, string userName, string passwrod ) =>
        {
            if (userName == "admin" && passwrod == "123456") return 0;
            return 4;

            // 返回错误码说明 Return error code description
            // 1: unacceptable protocol version
            // 2: identifier rejected
            // 3: server unavailable
            // 4: bad user name or password
            // 5: not authorized
        };
        // 启用文件管理服务  Enable file management service
        server.UseFileServer( System.IO.Path.Combine( AppDomain.CurrentDomain.BaseDirectory, "FileServer" ) );
        // 如果需要启用文件管理的权限，就编写 FileOperateVerification 事件
        server.FileOperateVerification += ( MqttSession session, byte code, string[] groups, string[] fileNames ) =>
        {
            // 此处举个例子，如果用户名为空，不允许删除操作，当然了，你可以自定义任何的规则
            if (string.IsNullOrEmpty( session.UserName ))
            {
                if (code == MqttControlMessage.FileDelete) return new OperateResult( "Null name not allowed delete!" );
            }
            return OperateResult.CreateSuccessResult( );
        };
        server.ServerStart( 1883 );
    }
    catch (Exception ex)
    {
        Console.WriteLine( "Start Failed: " + ex.Message );
    }
}