通过 js 调起微信官方的微信支付api

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function onBridgeReady() {WeixinJSBridge.invoke('getBrandWCPayRequest', { "appId": "wx2421b1c4370ec43b", // 公众号ID，由商户传入     "timeStamp": "1395712654", // 时间戳"nonceStr": "e61463f8efa94090b1f366cccfbbb444", // 随机串     "package": "prepay_id=wx21201855730335ac86f8c43d1889123400","signType": "RSA", // 微信签名方式"paySign": "oR9d8PuhnIc+YZ8cBHFCwfgpaK9gd7vaRvkYD7rthRAZ\/X+QBhcCYL21N7cHCTUxbQ+EAt6Uy+lwSN22f5YZvI45MLko8Pfso0jm46v5hqcVwrk6uddkGuT+Cdvu4WBqDzaDjnNa5UK3GfE1Wfl2gHxIIY5lLdUgWFts17D4WuolLLkiFZV+JSHMvH7eaLdT9N5GBovBwu5yYKUR7skR8Fu+LozcSqQixnlEZUfyE55feLOQTUYzLmR9pNtPbPsu6WVhbNHMS3Ss2+AehHvz+n64GDmXxbX++IOBvm2olHu3PsOUGRwhudhVf7UcGcunXt8cqNjKNqZLhLw4jq\/xDg==" // 微信签名 },function (res) {if (res.err_msg == "get_brand_wcpay_request:ok") {// 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。// 查看订单状态uni.showToast({title: '支付成功'})location.reload()} else {uni.showToast({icon: 'none',title: '支付失败'})uni.redirectTo({url: '/pages/xuanzhuang/xuanzhuang'})}})
}if (typeof WeixinJSBridge == "undefined") {if (document.addEventListener) {document.addEventListener('WeixinJSBridgeReady', onBridgeReady, false)} else if (document.attachEvent) {document.attachEvent('WeixinJSBridgeReady', onBridgeReady)document.attachEvent('onWeixinJSBridgeReady', onBridgeReady)}
} else {onBridgeReady()
}onBridgeReady()