JWTCore3.1JWTClient-如何将.Net令牌字符串添加到SignalR连接配置？

// 导入所需的命名空间
using Microsoft.AspNetCore.SignalR;
using Microsoft.IdentityModel.Tokens;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using System.Text;

// 创建自定义的令牌提供程序
public class JwtTokenProvider : ITokenProvider
{
    public string GenerateToken(string userId)
    {
        // 创建JWT令牌的声明
        var claims = new[]
        {
            new Claim(ClaimTypes.NameIdentifier, userId)
        };

        // 生成JWT令牌
        var tokenHandler = new JwtSecurityTokenHandler();
        var key = Encoding.ASCII.GetBytes("your-secret-key");
        var tokenDescriptor = new SecurityTokenDescriptor
        {
            Subject = new ClaimsIdentity(claims),
            Expires = DateTime.UtcNow.AddDays(7),
            SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
        };
        var token = tokenHandler.CreateToken(tokenDescriptor);
        return tokenHandler.WriteToken(token);
    }
}

// 在Startup.cs文件中的ConfigureServices方法中配置SignalR连接
public void ConfigureServices(IServiceCollection services)
{
    // 添加SignalR服务
    services.AddSignalR();

    // 添加JWT验证
    services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes("your-secret-key")),
            ValidateIssuer = false,
            ValidateAudience = false
        };
        options.Events = new JwtBearerEvents
        {
            OnMessageReceived = context =>
            {
                // 从请求中获取JWT令牌
                var token = context.Request.Query["access_token"];

                // 将JWT令牌添加到SignalR连接配置
                if (!string.IsNullOrEmpty(token))
                {
                    context.Token = token;
                }

                return Task.CompletedTask;
            }
        };
    });
}