public async Task WriteAsync(object o)
{
var s = XmlConvert.SerializeObject(o);
_logger.LogDebug("Response Body({0}): {1}", s?.Length, s);
//HttpContext.Response.Clear();
HttpContext.Response.ContentType = "text/plain;charset=utf-8";
var timestamp = WeixinTimestampHelper.FromUtcTime(DateTime.UtcNow);
var nonce = new Random().Next(123456789, 987654321);
var encrypted = _encryptor.Encrypt(s, timestamp.ToString(), nonce.ToString());
_logger.LogDebug("Encrypted Response Body({0}): {1}", encrypted?.Length, encrypted);
await HttpContext.Response.WriteAsync(encrypted);
}
