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微信的sdk文檔要求接入方緩存兩個(gè)參數(shù)：access_token和jsapi_ticket，在一定時(shí)間內(nèi)這兩個(gè)參數(shù)的值是不會(huì)過期的，不需要每次請(qǐng)求微信服務(wù)器獲取。
參考以下文檔獲取access_token（有效期7200秒，開發(fā)者必須在自己的服務(wù)全局緩存access_token）
用第一步拿到的access_token采用http GET方式請(qǐng)求獲得jsapi_ticket（有效期7200秒，開發(fā)者必須在自己的服務(wù)全局緩存jsapi_ticket）：https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="appId" value="" />
<add key="appSecret" value="" />
<add key="payApi" value="http://pay.53bk.com/" />
<add key="cacheApi" value="http://www.asiacable.com.cn/Api/WeixinCache" />
<add key="enableIP" value="127.0.0.1;127.0.0.1" />
</appSettings>
</configuration>

<!--http://www.asiacable.com.cn/Api/WeixinCache 微信accesstoken、ticket跨域服務(wù)器全局緩存(公共緩存)接口-->

全局緩存接口如：http://www.asiacable.com.cn/Api/WeixinCache

文章后臺(tái)代碼:

 #region WeixinCache() 服務(wù)器公共緩存接口 ---僅服務(wù)器端用 
 // /Api/WeixinCache?cachekey=accesstoken&hl=utf-8 /Api/WeixinCache?cachekey=ticket&hl=utf-8 
 public ActionResult WeixinCache() 
 { 
Response.Cache.SetOmitVaryStar(true);
 // Request.ContentEncoding = Encoding.GetEncoding("utf-8");
 string cachekey = "";
 if (Request.QueryString["cachekey"] != null)
 cachekey = Request.QueryString["cachekey"].ToString();
 if (Request.Form["cachekey"] != null)
 cachekey = Request.Form["cachekey"].ToString();
 string charset = "utf-8";
 if (Request.QueryString["hl"] != null)
 charset = Request.QueryString["hl"].ToString();
 if (Request.Form["hl"] != null)
 charset = Request.Form["hl"].ToString();
 if (charset == "utf-8")
 {
 Request.ContentEncoding = Encoding.GetEncoding("utf-8");
 Response.ContentEncoding = Encoding.GetEncoding("utf-8");
 }
 if (charset == "gb2312")
 {
 Request.ContentEncoding = Encoding.GetEncoding("gb2312");
 Response.ContentEncoding = Encoding.GetEncoding("gb2312");
 }
 if (charset == "gbk")
 {
 Request.ContentEncoding = Encoding.GetEncoding("gbk");
 Response.ContentEncoding = Encoding.GetEncoding("gbk");
 }
 string json1 = "";
 Weixinbll wxbll = new Weixinbll();
 if (cachekey=="accesstoken")
 {
 json1 = wxbll.getAccessTokenJsonstring();
 }
 if (cachekey == "ticket")
 {
 json1 = wxbll.getJsApiTicketJsonstring();
 }
 Response.Write(json1);
 return new EmptyResult();
 }
 #endregion 

最后程序后臺(tái)形成接口post代碼:

http://www.asiacable.com.cn/Api/WeixinCache?cachekey=accesstoken&hl=utf-8

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