public IActionResult Authenticate(string name, string password)
        {
            // 此处需补充用户校验与用户具体信息获取

            var user            = new UserProviderDto(name, password);
            var tokenHandler    = new JwtSecurityTokenHandler();
            var key             = Encoding.ASCII.GetBytes(Const.SecurityKey);
            var tokenDescriptor = new SecurityTokenDescriptor
            {
                Audience           = Audiences.UpdateAudience(user.Name),
                Subject            = user.GetClaimsIdentity(),
                Expires            = DateTime.UtcNow.AddDays(0.5),
                SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
            };
            var token       = tokenHandler.CreateToken(tokenDescriptor);
            var tokenString = tokenHandler.WriteToken(token);

            return(Ok(new
            {
                access_token = tokenString
            }));
        }