<%@ WebHandler Language="C#" Class="getqr" %>

using System;
using System.Web;
using System.Web.SessionState;

public class getqr : IHttpHandler,IRequiresSessionState {

    public void ProcessRequest(HttpContext context)
    {
        string id = ZWL.Common.PublicMethod.GetSessionValue("UserID");
        string url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" + globle.Global.getAccessToken.access_token;
        var wc = new System.Net.WebClient();
        string res = wc.UploadString(url, "{\"expire_seconds\": 120, \"action_name\": \"QR_SCENE\", \"action_info\": {\"scene\": {\"scene_id\": " + id + "}}}");
        var qr = Newtonsoft.Json.JsonConvert.DeserializeObject<wxQR_SCENE>(res);
        string result = "";
        if (qr == null || qr.ticket == null || qr.ticket == "")
        {
            result = Newtonsoft.Json.JsonConvert.SerializeObject(new { State = 0, Message = "获取参数二维码失败" });
        }
        else
        {
            result = Newtonsoft.Json.JsonConvert.SerializeObject(new { State = 1, Message = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=" + qr.ticket }); 
        }

        context.Response.ContentType = "text/plain";
        context.Response.Write(result);
    }

    public bool IsReusable {
        get {
            return false;
        }
    }

    private class wxQR_SCENE
    {
        public string ticket { get; set; }
        public int expire_seconds { get; set; }
        public string url { get; set; }
    }
}