所以,我安装了信号器库,一切都很好,除了远程连接。 我的客户端很容易在本地连接到服务器,但当我尝试远程连接时,我收到下一个错误:无法连接远程服务器。
关闭防火墙
StartUp.cs
[assembly: OwinStartup(typeof(PushNotifier.StartUp))]
namespace PushNotifier
{
public class StartUp
{
public void Configuration(IAppBuilder appBuilder)
{
appBuilder.Map("/signalr", map =>
{
var hubConfiguration = new HubConfiguration
{
EnableDetailedErrors = true,
};
map.UseCors(CorsOptions.AllowAll);
map.RunSignalR(hubConfiguration);
});
}
}
}
Program.cs的
public static void Main(string[] args)
{
try
{
using (WebApp.Start("http://*:8734"))
{
while (true)
{
var pressedKey = Console.ReadKey(true).Key;
switch (pressedKey)
{
case ConsoleKey.P:
{
var hubEntity = new HubEntity();
hubEntity.SendNotification("hidden", JsonConvert.DeserializeObject<VersionEntity>(FileHelper.OpenFile(filePath)).Version);
}
break;
case ConsoleKey.Escape:
return;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "|" + ex.StackTrace);
}
}
Client.cs
var connection = new HubConnection("http://10.0.0.18:8734/signalr");
var hubProxy = connection.CreateHubProxy("HubEntity");
hubProxy.On<string, string>("addMessage", (message, version) =>
{
try
{
Console.WriteLine("Connected");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
});
try
{
await connection.Start();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, string.Empty, MessageBoxButton.OK, MessageBoxImage.Error);
Application.Current.Shutdown();
}
答案 0 :(得分:3)
我最近帮助了另一位在网络上关注类似或相同示例的用户,我之所以这么说,是因为代码非常相似且方法几乎相同。
我发现在远程部署服务器时尝试连接时出现的一个问题。只是这个,
var connection = new HubConnection("http://10.0.0.18:8734/signalr");
只是改为
var connection = new HubConnection("http://10.0.0.18:8734/");
拼图的下一部分可能是端口,但是基于以下事实:当您浏览到地址时,您会收到未知的传输错误,这在这种情况下很好,因此端口是打开的,通信正在工作。< / p>
另一个常见问题是实际的集线器名称,有些人认为是错误的,但是对于我们来检查这一点,您需要向我们提供集线器实现,或者您可以简单地尝试阅读有关名称和在某些情况下,方法需要在信号器客户端中更改大小写。
使用时的另一个问题 await connection.Start();
我看不到包含此代码的函数,但如果它没有标记为异步,则上述调用将同步运行并会产生一些问题,这只有在客户端和服务器位于不同的计算机上时才真正可见,当延迟开始发挥作用。为了消除这种情况,我建议尝试
hubConnection.Start().Wait();
进一步提供帮助,很难确定你接下来要做什么,但我会假设你没有超过连接点,这就是你没有放置其余代码的原因。
我只是想参考我要知道的代码是针对一个类似的例子,代码是针对该示例的控制台版本。
{
static void Main(string[] args)
{
Console.WriteLine("Starting client http://10.0.0.18:8734/");
var hubConnection = new HubConnection("http://10.0.0.18:8734/");
//hubConnection.TraceLevel = TraceLevels.All;
//hubConnection.TraceWriter = Console.Out;
IHubProxy myHubProxy = hubConnection.CreateHubProxy("MyHub");
myHubProxy.On<string, string>("addMessage", (name, message) => Console.Write("Recieved addMessage: " + name + ": " + message + "\n"));
myHubProxy.On("heartbeat", () => Console.Write("Recieved heartbeat \n"));
myHubProxy.On<HelloModel>("sendHelloObject", hello => Console.Write("Recieved sendHelloObject {0}, {1} \n", hello.Molly, hello.Age));
hubConnection.Start().Wait();
while (true)
{
string key = Console.ReadLine();
if (key.ToUpper() == "W")
{
myHubProxy.Invoke("addMessage", "client message", " sent from console client").ContinueWith(task =>
{
if (task.IsFaulted)
{
Console.WriteLine("!!! There was an error opening the connection:{0} \n", task.Exception.GetBaseException());
}
}).Wait();
Console.WriteLine("Client Sending addMessage to server\n");
}
if (key.ToUpper() == "E")
{
myHubProxy.Invoke("Heartbeat").ContinueWith(task =>
{
if (task.IsFaulted)
{
Console.WriteLine("There was an error opening the connection:{0}", task.Exception.GetBaseException());
}
}).Wait();
Console.WriteLine("client heartbeat sent to server\n");
}
if (key.ToUpper() == "R")
{
HelloModel hello = new HelloModel { Age = 10, Molly = "clientMessage" };
myHubProxy.Invoke<HelloModel>("SendHelloObject", hello).ContinueWith(task =>
{
if (task.IsFaulted)
{
Console.WriteLine("There was an error opening the connection:{0}", task.Exception.GetBaseException());
}
}).Wait();
Console.WriteLine("client sendHelloObject sent to server\n");
}
if (key.ToUpper() == "C")
{
break;
}
}
}
}