带有 MVC 5 的 Angular 6 Signalr

本文介绍了带有 MVC 5 的 Angular 6 Signalr的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

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我在 mvc 5 中的当前项目中使用 angular 6，所有其他事情都运行良好，我在实现 SignalR 时面临的唯一问题，这是我的 signalr.service.ts 代码:

I am using angular 6 with my current project which is in mvc 5 , all other things are working perfect, the only problem i am facing in implementing SignalR, this is my signalr.service.ts code:

export class SignalRService {
dataReceived = new EventEmitter<myData>();
connectionEstablished = new EventEmitter<Boolean>();

private connectionIsEstablished = false;
private _hubConnection: HubConnection;

constructor() {
    this.createConnection();
    this.registerOnServerEvents();
    this.startConnection();
}


private createConnection() {
    this._hubConnection = new HubConnectionBuilder()
        .withUrl(window.location.href+'testHub')
        .build();
       
}

private startConnection(): void {
    this._hubConnection
        .start()
        .then(() => {
            this.connectionIsEstablished = true;
            console.log('Hub connection started');
            this.connectionEstablished.emit(true);
        })
        .catch(err => {
            console.log('Error while establishing connection, retrying...');
            //setTimeout(this.startConnection(), 5000);
        });
}

private registerOnServerEvents(): void {
    this._hubConnection.on('sendProgressTrackerAlert', (data: any) => {
        this.dataReceived.emit(data);
    });
}

}

但它给了我这个错误:

     Utils.js:148 Error: Failed to complete negotiation with the server: Error: Not Found
 push../node_modules/@aspnet/signalr/dist/esm/Utils.js.ConsoleLogger.log
 @ Utils.js:148 14:55:10.842 Utils.js:148 Error: Failed to start the
 connection: Error: Not Found

顺便说一句；MVC5 可以使用 angular 6 Signalr 吗?因为根据我的知识和搜索，我发现 angular 6 signalr 只能与 Core 一起使用?

Btw; angular 6 Signalr is possible with MVC5? because as per my knowledge and search i have found that angular 6 signalr can be used only with Core?

推荐答案

如果您希望使用 MVc5 解决方案来使用 SignalR，那么您需要将 jQuery.signalR 模块与您的 angular 客户端一起使用，而不是 @aspnet.信号R.

if you looking to user signalR with a MVc5 solution, then you'll need to use the jQuery.signalR module with your angular client instead of the @aspnet.SignalR.

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