uni-app吊起微信公众号支付

let data = result.data;是从后端接口中获取的

let data = result.data;
        WeixinJSBridge.invoke('getBrandWCPayRequest', {
          "appId": data.appId, //公众号名称，由商户传入
          "timeStamp": data.timeStamp, //时间戳
          "nonceStr": data.nonceStr, //随机串
          "package": data.package, //扩展包
          "signType": data.signType, //微信签名方式:MD5
          "paySign": data.paySign //微信签名
        }, function(respay) {
          if (respay.err_msg === "get_brand_wcpay_request:ok") {
            that.page = 1;
            that.list = [];
            that.getData();
          } else if (respay.err_msg === "get_brand_wcpay_request:cancel") {
            uni.showToast({
              title: "取消支付",
              icon: "none",
              duration: 2000
            });
            that.isClick = true;
          } else if (respay.err_msg === "get_brand_wcpay_request:fail") {
            uni.showToast({
              title: "支付失败",
              icon: "none",
             duration: 2000
            })
            that.isClick = true;
          }
        }, function(err) {
          uni.showToast({
            title: res.data.msg,
            icon: "none",
            duration: 2000
          });
        });