protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
WxConfig = EasyWeixin.CommonAPIs.CommonApi.GetWxConfigResult(appid, appsecert, Request.Url.ToString());
QRCodeEncoder encoder = new QRCodeEncoder();
Bitmap bt = encoder.Encode(Request.Url.ToString());
var md5 = new MD5CryptoServiceProvider();
var start = Encoding.Default.GetBytes(Request.Url.ToString());
byte[] output = md5.ComputeHash(start);
var result = BitConverter.ToString(output).Replace("-", "");
var direName = "~/tmpQrImg/";
var filename = direName + result + ".png";
var filepath = Server.MapPath(filename);
if (!Directory.Exists(direName))
{
Directory.CreateDirectory(direName);
}
if (!File.Exists(filename))
{
bt.Save(filename, ImageFormat.Png);
}
ImgSrc = filename;
}
}
protected void InitWeixinConfig()
{
WxConfigResult result = CommonApi.GetWxConfigResult(ActivityConfig.MHalloweenAppId,
ActivityConfig.MHalloweenAppSecrect, Request.Url.ToString());
WxConfig = result;
}
/// <summary>
///
/// </summary>
/// <param name="appid"></param>
/// <param name="secret"></param>
/// <param name="url">要分享的url(从http开始，如果有参数，包含参数）</param>
/// <returns></returns>
public static WxConfigResult GetWxConfigResult(string appid, string secret, string url)
{
url = url.IndexOf("#", StringComparison.Ordinal) >= 0 ? url.Substring(0, url.IndexOf("#", StringComparison.Ordinal)) : url;
var jsapiTicket = JsApiTicketContainer.TryGetTicket(appid, secret);
var timestamp = CommonHelper.GetTimeStamp();
var noncestr = CommonHelper.GuidTo16String(Guid.NewGuid());
var str = string.Format("jsapi_ticket={0}&noncestr={1}×tamp={2}&url={3}", jsapiTicket, noncestr, timestamp, url);
var hash = CommonHelper.Sha1(str);
var wxConfigResult = new WxConfigResult()
{
appid = appid,
timestamp = timestamp,
noncestr = noncestr,
signature = hash,
ticket = jsapiTicket,
url = str
};
return wxConfigResult;
}