如何在集线器外获取SignalR核心中的当前ClaimsPrincipal

services.AddAuthentication()
    .AddJwtBearer(options =>
    {
        // 配置JWT认证选项
    });

services.AddAuthorization();

using Microsoft.AspNetCore.SignalR;
using System.Security.Claims;

public class MyHub : Hub
{
    public override async Task OnConnectedAsync()
    {
        ClaimsPrincipal user = Context.User;
        // 可以在这里获取和使用当前的ClaimsPrincipal对象
        await base.OnConnectedAsync();
    }
}

using Microsoft.AspNetCore.SignalR;
using System.Security.Claims;

public class MyController : Controller
{
    private readonly IHubContext<MyHub> _hubContext;

    public MyController(IHubContext<MyHub> hubContext)
    {
        _hubContext = hubContext;
    }

    public async Task MyMethod()
    {
        ClaimsPrincipal user = User;
        // 可以在这里获取和使用当前的ClaimsPrincipal对象

        await _hubContext.Clients.All.SendAsync("MethodName", parameter1, parameter2);
        // 调用SignalR客户端方法
    }
}