小程序码 小程序二维码

 /// <summary>
    /// 小程序码   小程序接收需要用     /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Button1_Click(object sender, EventArgs e)
    {
        string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=****&secret=****";
        //请求url以获取数据
        string result = HttpService.Get(url);
        //保存access_token，用于收货地址获取
        LitJson.JsonData jd = LitJson.JsonMapper.ToObject(result);


        string access_token = (string)jd["access_token"];
        string _url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" + access_token;
        string strURL = _url;
        System.Net.HttpWebRequest request;
        request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
        request.Method = "POST";
        request.ContentType = "application/json;charset=UTF-8";
        JsonData _data = new JsonData();
        _data["page"] = "pages/ErWeiMa/ErWeiMa";
        _data["scene"] = "1";
        _data["width"] = "430";
        string _jso = _data.ToJson();
        //string paraUrlCoded = param;
        byte[] payload;
        //payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
        payload = System.Text.Encoding.UTF8.GetBytes(_jso);
        request.ContentLength = payload.Length;
        Stream writer = request.GetRequestStream();
        writer.Write(payload, 0, payload.Length);
        writer.Close();
        System.Net.HttpWebResponse response;
        response = (System.Net.HttpWebResponse)request.GetResponse();
        System.IO.Stream s;
        s = response.GetResponseStream();
        string StrDate = "";
        string strValue = "";
        byte[] tt = StreamToBytes(s);
        System.IO.File.WriteAllBytes(System.Web.HttpContext.Current.Server.MapPath("Upload/1.png"), tt);
       // xiaochengxuma("");
    }
    /// <summary>
    /// 小程序二维码
    /// </summary>
    /// <param name="path"></param>
    /// <returns></returns>
    public string xiaochengxuma(string path)
    {
        // string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=*****&secret=***";
        string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=****&secret=****";
        //请求url以获取数据
        string result = HttpService.Get(url);
        //保存access_token，用于收货地址获取
        LitJson.JsonData jd = LitJson.JsonMapper.ToObject(result);


        string access_token = (string)jd["access_token"];


        string _url = "https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=" + access_token;
        string strURL = _url;
        System.Net.HttpWebRequest request;
        request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
        request.Method = "POST";
        request.ContentType = "application/json;charset=UTF-8";
        JsonData _data = new JsonData();
        _data["path"] = "pages/ErWeiMa/ErWeiMa";//_data["path"] = "pages/index?query=1";
        _data["width"] = "430";
        string _jso = _data.ToJson();
        //string paraUrlCoded = param;
        byte[] payload;
        //payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
        payload = System.Text.Encoding.UTF8.GetBytes(_jso);
        request.ContentLength = payload.Length;
        Stream writer = request.GetRequestStream();
        writer.Write(payload, 0, payload.Length);
        writer.Close();
        System.Net.HttpWebResponse response;
        response = (System.Net.HttpWebResponse)request.GetResponse();
        System.IO.Stream s;
        s = response.GetResponseStream();
        string StrDate = "";
        string strValue = "";
        byte[] tt = StreamToBytes(s);
        //将流保存在c盘test.png文件下
        System.IO.File.WriteAllBytes(System.Web.HttpContext.Current.Server.MapPath("Upload/1.png"), tt);




        JavaScriptSerializer jss = new JavaScriptSerializer();
        return jss.Serialize("");
    }
    public static byte[] StreamToBytes(Stream stream)
    {
        List<byte> bytes = new List<byte>();
        int temp = stream.ReadByte();
        while (temp != -1)
        {
            bytes.Add((byte)temp);
            temp = stream.ReadByte();
        }
        return bytes.ToArray();
    }