1 function startWxPay(url) {
 2    var idx = layer.msg("正在启动微信支付", {time: 0});
 3    var prepayId = false;
 4 
 5    $.post("{{URL::to(‘chat/prepay/‘.$order->id)}}", function (resp) {
 6       if (resp.success) {
 7          prepayId = resp.prepay_id;
 8 
 9          if (typeof WeixinJSBridge == "undefined"){
10             if( document.addEventListener ){
11                document.addEventListener(‘WeixinJSBridgeReady‘, onBridgeReady, false);
12             }else if (document.attachEvent){
13                document.attachEvent(‘WeixinJSBridgeReady‘, onBridgeReady);
14                document.attachEvent(‘onWeixinJSBridgeReady‘, onBridgeReady);
15             }
16          }else{
17             onBridgeReady();
18          }
19       } else {
20          alert(resp.message);
21       }
22    });
23 
24    function onBridgeReady() {
25       $.post("{{URL::to(‘wxpay/js-api‘)}}/" + prepayId, function (resp) {
26          if (resp.success) {
27             WeixinJSBridge.invoke(‘getBrandWCPayRequest‘, {
28                      appId: resp.param.appId,
29                      timeStamp: resp.param.timeStamp.toString(),
30                      nonceStr: resp.param.nonceStr,
31                      package: resp.param.package,
32                      signType: resp.param.signType,
33                      paySign: resp.param.paySign
34                   }, function (res) {
35 //             alert(res.err_code+res.err_msg+res.err_desc);
36                      if (res.err_msg && res.err_msg.match(/cancel/)) {
37                         alert("交易取消");
38                         location.reload();
39                      } else if (res.err_msg && res.err_msg.match(/ok/)) {
40                         location.href = url;
41                      }else if (res.err_msg && res.err_msg.match(/fail/)){
42                         alert(res.err_code+res.err_msg+res.err_desc);
43 //                      alert("交易失败");
44                         location.reload();
45                      }
46                   }
47             );
48          }
49       });
50    }
51 }