微信开发

/// <summary>
        /// 
        /// </summary>
        /// <param name="signature"></param>
        /// <param name="timestamp"></param>
        /// <param name="nonce"></param>
        /// <param name="echostr"></param>
        /// <returns></returns>
        [HttpGet]
        [ActionName("Index")]
        public ActionResult Index(string signature, string timestamp, string nonce, string echostr)
        {
            if (CheckSignature.Check(signature, timestamp, nonce, Token))
            {
                return Content(echostr); //返回随机字符串则表示验证通过
            }
            else
            {
                return Content("failed:" + signature + "," + CheckSignature.GetSignature(timestamp, nonce, Token) + "。如果您在浏览器中看到这条信息，表明此Url可以填入微信后台。");
            }
        }