=======================【基本信息设置】====================/* 微信公众号信息配置* APPID：绑定支付的APPID（必须配置）* MCHID：商户号（必须配置）* KEY：商户支付密钥，参考开户邮件设置（必须配置）* APPSECRET：公众帐号secert（仅JSAPI支付的时候需要配置）*/public const string APPID = AuthConnect.WeChat_AppId;public const string MCHID = "0000000";public const string KEY = AuthConnect.WeChat_AppPayKey;public const string APPSECRET = AuthConnect.WeChat_AppKey;

UnifiedOrder order = new UnifiedOrder();order.appid = AppId;order.mch_id = partnerId;order.nonce_str = TenpayUtil.getNoncestr();order.body = body;order.out_trade_no = orderNumber;order.total_fee = Price;order.spbill_create_ip = Page.Request.UserHostAddress;order.notify_url = "Notify.aspx";order.trade_type = "JSAPI";if (ViewState["OpenID"] != null){order.openid = ViewState["OpenID"].ToString();  //JSAPI必须传入openid
        }TenpayUtil tu = new TenpayUtil();PrepayId = tu.getPrepay_id(order, key);string package = "prepay_id=" + PrepayId;NonceStr = order.nonce_str;TimeStamp = TenpayUtil.getTimestamp();SortedDictionary<string, string> sParams = new SortedDictionary<string, string>();sParams.Add("appId", AppId);sParams.Add("nonceStr", NonceStr);sParams.Add("package", package);sParams.Add("signType", "MD5");sParams.Add("timeStamp", TimeStamp);Sign = tu.getsign(sParams, key);Json = "{\"code\":\"1\",\"data\":{\"appId\":\"" + AppId + "\",\"nonceStr\":\"" + NonceStr + "\",\"package\":\"" + package + "\",\"timeStamp\":\"" + TimeStamp + "\",\"signType\":\"MD5\",\"paySign\":\"" + Sign + "\"}}";

$.post("/Pay/PayApi.aspx", ret, function (result) {var result = JSON.parse(result); //后台获取到的参数if (result.code == 1) {WeixinJSBridge.invoke('getBrandWCPayRequest', result.data,function (res) {// 使用以上方式判断前端返回,微信团队郑重提示：res.err_msg将在用户支付成功后返回    ok，但并不保证它绝对可靠。switch (res.errMsg) {case "get_brand_wcpay_request:ok":alert("支付成功");break;case "get_brand_wcpay_request:cancel":alert("支付取消");break;default:alert("支付失败");break;}});}}