SignalR不允许在方法中使用Autorize

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.SignalR;
using System.Threading.Tasks;

public class CustomAuthorizeAttribute : AuthorizeAttribute
{
    public override async Task<bool> AuthorizeHubConnection(HubConnectionContext connection)
    {
        // 在此处实现连接的身份验证和授权逻辑
        // 返回true表示连接被授权，返回false表示连接被拒绝
        return await base.AuthorizeHubConnection(connection);
    }

    public override async Task<bool> AuthorizeHubMethodInvocation(HubInvocationContext hubContext, bool appliesToMethod)
    {
        // 在此处实现方法调用的身份验证和授权逻辑
        // 返回true表示方法调用被授权，返回false表示方法调用被拒绝
        return await base.AuthorizeHubMethodInvocation(hubContext, appliesToMethod);
    }
}

public class MyHub : Hub
{
    [CustomAuthorize]
    public async Task SendMessage(string user, string message)
    {
        // 在此处实现方法的逻辑
        await Clients.All.SendAsync("ReceiveMessage", user, message);
    }
}