微信支付需要监听WeixinJSBridgeReady

<script language="javascript">

var str = <?php echo $str;?>;

function callpay()

{

document.addEventListener(‘WeixinJSBridgeReady‘, function onBridgeReady() {

WeixinJSBridge.invoke(‘getBrandWCPayRequest‘,str,function(res){

WeixinJSBridge.log(res.err_msg);

//alert(res.err_code+res.err_desc+res.err_msg);

switch (res.err_msg){

case ‘get_brand_wcpay_request:cancel‘:

location.href="/?_a=fail&order_sn=<?php echo $order_sn;?>";

break;

case ‘get_brand_wcpay_request:fail‘:

location.href="/?_a=fail&order_sn=<?php echo $order_sn;?>";

break;

case ‘get_brand_wcpay_request:ok‘:

location.href="/?_a=done&order_sn=<?php echo $order_sn;?>&ac=<?php echo $authcode?>";

break;

}

});

}, false);

}

callpay();

</script>