Question

我已经创建了一个控制台应用程序，它作为信号r的主机并侦听端口8089.当我运行wpf应用程序并在localhost上运行该主机应用程序时，一切正常。现在我已在服务器上部署该控制台应用程序。现在我尝试连接时，它不通过wpf连接。那么我读到它只支持HTTP协议，在阅读之后我创建了一个连接到远程服务器上的服务器并且连接成功的网站。我的问题是，有什么方法可以使用wpf连接到该服务器。我想创建一个桌面聊天应用程序，其中所有客户端将连接到同一服务器，以便它可以广播。任何帮助将表示赞赏

StartUp.CS

     public class Startup
        {
            public void Configuration(IAppBuilder app)
            {
                // Branch the pipeline here for requests that start with "/signalr"
                app.Map("/signalr", map =>
                {
                    // Setup the CORS middleware to run before SignalR.
                    // By default this will allow all origins. You can 
                    // configure the set of origins and/or http verbs by
                    // providing a cors options with a different policy.
                    map.UseCors(CorsOptions.AllowAll);
                    var hubConfiguration = new HubConfiguration
                    {
                        // You can enable JSONP by uncommenting line below.
                        // JSONP requests are insecure but some older browsers (and some
                        // versions of IE) require JSONP to work cross domain
                        // EnableJSONP = true
                    };
                    // Run the SignalR pipeline. We're not using MapSignalR
                    // since this branch already runs under the "/signalr"
                    // path.

                    hubConfiguration.EnableDetailedErrors = true;
                    map.RunSignalR(hubConfiguration);
                });
            }
        }


**Program.CS**


     class Program
        {
            static void Main(string[] args)
            {
                // This will *ONLY* bind to localhost, if you want to bind to all addresses
                // use http://*:8080 to bind to all addresses. 
                // See http://msdn.microsoft.com/en-us/library/system.net.httplistener.aspx 
                // for more information.
                string url = "http://MyIpAddressOfServer:8089";
                using (WebApp.Start(url))
                {
                    Console.WriteLine("Server running on {0}", url);

                    Console.ReadLine();
                }
            }
        }

**MainWindowXaml.cs**

 public partial class MainWindow : Window
    {
        public System.Threading.Thread Thread { get; set; }
        public string Host = "http://MyIpAddressOfServer:8089/signalr";

        public IHubProxy Proxy { get; set; }
        public HubConnection Connection { get; set; }

        public bool Active { get; set; }

        public MainWindow()
        {
            InitializeComponent();
        }

        private async void ActionSendButtonClick(object sender, RoutedEventArgs e)
        {
            await SendMessage();
        }

        private async Task SendMessage()
        {
            await Proxy.Invoke("Addmessage", ClientNameTextBox.Text , MessageTextBox.Text);
        }
        private async void ActionWindowLoaded(object sender, RoutedEventArgs e)
        {
            Active = true;
            Thread = new System.Threading.Thread(() =>
            {
                Connection = new HubConnection(Host);
                Proxy = Connection.CreateHubProxy("MyHub");
                Proxy.On<string, string>("addmessage", (name, message) => OnSendData(name + ": " + message ));
                Connection.Start();

                while (Active)
                {
                    System.Threading.Thread.Sleep(10);
                }
            }) { IsBackground = true };
            Thread.Start();

        }

        private void OnSendData(string message)
        {
            try
            {
                Dispatcher.Invoke(DispatcherPriority.Normal, (Action)(() => MessagesListBox.Items.Insert(0, message)));
            }
            catch (Exception e)
            {
            }
        }

        private async void ActionMessageTextBoxOnKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter || e.Key == Key.Return)
            {
                await SendMessage();
                MessageTextBox.Text = "";
            }
        }
    }

Answer 1

嗨，有几个答案，

这是一个MS示例 https://code.msdn.microsoft.com/windowsdesktop/Using-SignalR-in-WinForms-f1ec847b

这是另一个关于wpf的例子 http://damienbod.wordpress.com/2013/11/20/signalr-a-complete-wpf-client-using-mvvm/

虽然第一个链接显示winforms，但它也涵盖了wpf。

如果链接出现故障，您需要使用此nugget包 Microsoft.AspNet.SignalR.Client

以上包支持该软件包支持.NET 4和.NET 4.5的WinRT，Silverlight，WPF，控制台应用程序和Windows Phone客户端。

您可以在此链接中找到有关该块包的更多信息 http://www.asp.net/signalr/overview/guide-to-the-api/hubs-api-guide-net-client

public partial class MainWindow : Window
{
    public System.Threading.Thread Thread { get; set; }
    public string Host = "http://x.x.x.x:8089/";

    public IHubProxy Proxy { get; set; }
    public HubConnection Connection { get; set; }

    public bool Active { get; set; }


    public MainWindow()
    {
        InitializeComponent();
    }

    private async void ActionHeartbeatButtonClick(object sender, RoutedEventArgs e)
    {
        await SendHeartbeat();
    }

    private async void ActionSendButtonClick(object sender, RoutedEventArgs e)
    {
        await SendMessage();
    }

    private async void ActionSendObjectButtonClick(object sender, RoutedEventArgs e)
    {
        await SendHelloObject();
    }

    private async Task SendMessage()
    {
        await Proxy.Invoke("Addmessage", ClientNameTextBox.Text, MessageTextBox.Text);
    }

    private async Task SendHeartbeat()
    {
        await Proxy.Invoke("Heartbeat");
    }

    private async Task SendHelloObject()
    {
        HelloModel hello = new HelloModel { Age = Convert.ToInt32(HelloTextBox.Text), Molly = HelloMollyTextBox.Text };
        await Proxy.Invoke("sendHelloObject", hello);
    }

    private async void ActionWindowLoaded(object sender, RoutedEventArgs e)
    {
        Active = true;
        Thread = new System.Threading.Thread(() =>
        {
            Connection = new HubConnection(Host);
            Proxy = Connection.CreateHubProxy("MyHub");

            Proxy.On<string, string>("addmessage", (name, message) => OnSendData("Recieved addMessage: " + name + ": " + message));
            Proxy.On("heartbeat", () => OnSendData("Recieved heartbeat"));
            Proxy.On<HelloModel>("sendHelloObject", hello => OnSendData("Recieved sendHelloObject " + hello.Molly + " " + hello.Age));

            Connection.Start();

            while (Active)
            {
                System.Threading.Thread.Sleep(10);
            }
        }) { IsBackground = true };
        Thread.Start();

    }

    private void OnSendData(string message)
    {
        Dispatcher.Invoke(DispatcherPriority.Normal, (Action)(() => MessagesListBox.Items.Insert(0, message)));
    }

    private async void ActionMessageTextBoxOnKeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Enter || e.Key == Key.Return)
        {
            await SendMessage();
            MessageTextBox.Text = "";
        }
    }

}



<Window x:Class="SignalRTest.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Loaded="ActionWindowLoaded"
    Title="MainWindow" Height="350" Width="525">
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="Auto" />
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="Auto" />
        <ColumnDefinition />
        <ColumnDefinition />
        <ColumnDefinition Width="Auto"
                          MinWidth="149" />
    </Grid.ColumnDefinitions>

    <Label Content="Message:"
           Grid.Column="0"
           Grid.Row="0"
           Margin="5" />
    <TextBox Width="Auto"
             Grid.Column="1"
             Grid.Row="0"
             Margin="5,5,10,5"
             x:Name="ClientNameTextBox" />
    <TextBox Width="Auto"
             Grid.Column="2"
             Grid.Row="0"
             Margin="5,5,10,5"
             x:Name="MessageTextBox"
             KeyDown="ActionMessageTextBoxOnKeyDown" />
    <Button Content="AddMessage"
            Grid.Column="3"
            Grid.Row="0"
            Margin="17,5"
            x:Name="SendButton"
            Click="ActionSendButtonClick" />

    <Label Content="Heartbeat:"
           Grid.Column="0"
           Grid.Row="1"
           Margin="5" />
    <Button Content="Send Heartbeat"
            Grid.Column="3"
            Grid.Row="1"
            Margin="17,5"
            x:Name="HeartbeatButton"
            Click="ActionHeartbeatButtonClick" />

    <Label Content="Age, Molly:"
           Grid.Column="0"
           Grid.Row="2"
           Margin="5" />
    <TextBox Width="Auto"
             Grid.Column="1"
             Grid.Row="2"
             Margin="5,5,10,5"
             x:Name="HelloTextBox" />
    <TextBox Width="Auto"
             Grid.Column="2"
             Grid.Row="2"
             Margin="5,5,10,5"
             x:Name="HelloMollyTextBox"
             KeyDown="ActionMessageTextBoxOnKeyDown" />
    <Button Content="Send Object"
            Grid.Column="3"
            Grid.Row="2"
            Margin="17,5"
            x:Name="HelloButton"
            Click="ActionSendObjectButtonClick" />

    <ListBox Grid.Column="0"
             Grid.Row="3"
             Grid.ColumnSpan="4"
             Margin="5"
             x:Name="MessagesListBox" />
</Grid>

public class HelloModel
{
    public string Molly { get; set; }

    public int Age { get; set; }

}

信号器：通过wpf连接到远程主机

1 个答案: