这个怎么感觉不用ajax去请求什么啊?WeixinJSBridge不是已经封装好公众号支付的方法了吗?如果你已经在php里面完成统一下单过程了,那直接调用WeixinJSBridge的支付方法就行了:
var jsApiParamObj = <?php echo $jsApiParamList; ?>;
payBill: function () {
var _this = this;
if (typeof WeixinJSBridge === "undefined") {
alert("页面尚未加载完毕请稍后再试");
} else {
WeixinJSBridge.invoke("getBrandWCPayRequest", jsApiParamObj, function (retObj) {
if(retObj["err_msg"] === "get_brand_wcpay_request:ok" ) {
self.location.href = "paySuccess.php?payMode=wechat&amount=" + _this.totalAmount;
} else {
alert("支付遇到问题,请稍后再试");
}
});
}
}
其中jsApiParamObj是统一下单完成后拿到的结果,其实也就是预付单的prepay_id。统一下单过程可以在PHP里完成,可以自己按照微信文档实现,也可以直接用微信提供的PHP SDK:
// 统一下单
$unifiedOrder = new WxPayUnifiedOrder();
$unifiedOrder->SetBody($pageTitle . '-' . $productName);
$unifiedOrder->SetOut_trade_no($outTradeNo);
$unifiedOrder->SetTotal_fee(floatval($totalFee) * 100);
$unifiedOrder->SetNotify_url(WECHAT_H5_NOTIFY_URL);
$unifiedOrder->SetTrade_type("JSAPI");
$unifiedOrder->SetOpenid($openId);
$startTime = time();
$unifiedOrder->SetTime_start(date('YmdHis', $startTime));
$unifiedOrder->SetTime_expire(date('YmdHis', $startTime + 300));
$orderResult = WxPayApi::unifiedOrder($unifiedOrder);
if (!isset($orderResult['result_code']) || !isset($orderResult['return_code']) ||
$orderResult['result_code'] != 'SUCCESS' || $orderResult['return_code'] != 'SUCCESS') {
exit('微信支付调用失败,请尝试重新下单');
}
// 获取JS参数
$jsApiPay = new JsApiPay();
$jsApiParamList = $jsApiPay->GetJsApiParameters($orderResult);