在服务器端实现SignalR的Token认证逻辑。

通过使用SignalR的JwtBearer认证提供程序，配置服务器端SignalR发送授权令牌。

在客户端上使用JwtInterceptor拦截器，将Jwt令牌添加到每个SignalR请求的标头中。 示例： [Authorize] public class ChatHub : Hub { // 必须与前端代码一致 private const string HUB_PATH = "/mychat";

public async Task SendMessage(string message) { await Clients.All.SendAsync("ReceiveMessage", message); } public override async Task OnConnectedAsync() { // 通过获取JWT令牌，验证并处理请求 var httpContext = Context.GetHttpContext(); var header = httpContext.Request.Headers["Authorization"].ToString();

 // 获取JWT令牌
 var token = header.Split(" ")[1];

 // 验证JWT令牌
 var validatedToken = new JwtSecurityToken(token);

 // 处理请求，没有问题才能继续
 if (validatedToken.ValidTo > DateTime.Now)
 {
    await base.OnConnectedAsync();
 }
 else
 {
    // 鉴定没过就断开连接
    Context.Abort();
 }

} }

在Angular app.module.ts文件中，添加JwtInterceptor拦截器： import { HTTP_INTERCEPTORS } from '@angular/common/http'; import { JwtInterceptor } from './jwt.interceptor'; @NgModule({ ... providers: [ ... { provide: HTTP_INTERCEPTORS, useClass: JwtInterceptor, multi: true } ] }) export class AppModule { } 示例： import { Injectable } from '@angular/core'; import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http'; import { AuthService } from './auth.service'; import { Observable } from 'rxjs'; @Injectable() export class JwtInterceptor implements HttpInterceptor { constructor(private authService: AuthService) { } intercept(request: HttpRequest, next: Http