uniapp调用微信支付功能

HTML

<template>
    <view class="content">
        <input v-model="val" />
        <button @click="clickPay">点我扣款</button>
    </view>
</template>

JavaScript

<script>
    export default {
        data() {
            return {
                title: 'Hello',
                val: 0.1
            };
        },
        methods: {
            clickPay() {
                let _this = this;

                //1.调用登录 获取code
                uni.login({
                    provider: 'weixin',
                    success(res) {
                        //2.调用微信官方接口,拿code去换openid
                        uni.request({
                            url: 'https://api.weixin.qq.com/sns/jscode2session',
                            data: {
                                appid: 'wx4f27fd51b9a7bfda',
                                secret: '1a9bfee5a8155f0020c5857cd9038674',
                                js_code: res.code,
                                grant_type: 'authorization_code' //固定值
                            },
                            success(obj) {
                                console.log(obj.data.openid, '用户真实openid............');
                                console.log({
                                    openId: obj.data.openid, //微信用户的openid!!!扣谁的钱
                                    name: '电吹风体验卷',
                                    money: _this.val,
                                    code: '851230012314156910598',
                                    payType: 1,
                                    clientIp: '127.0.0.1'
                                });

                                //3.调用后端接口 拿到所需要的数据
                                uni.request({
                                    url: 'http://api.100qhl.com:5024/v1/order/createOrder',
                                    method: 'POST',
                                    data: {
                                        openId: obj.data.openid, //微信用户的openid!!!扣谁的钱
                                        name: '好洗的地毯',
                                        money: Number(_this.val),
                                        code: '8512300123149105999015',
                                        payType: 1,
                                        clientIp: '127.0.0.1'
                                    },
                                    success(res) {
                                        console.log(res, '后端返回参数完毕.....');

                                        //4.调用官方接口扣钱!!!!

                                        uni.requestPayment({
                                            timeStamp: res.data.data.timeStamp,
                                            nonceStr: res.data.data.nonceStr,
                                            package: res.data.data.packageValue,
                                            signType: res.data.data.signType,
                                            paySign: res.data.data.paySign,
                                            complete(res) {
                                                console.log(res,
                                                    '扣款返回的结果.~~~~~~~~~~~~~~~~~');
                                            }
                                        });
                                    }
                                });
                            }
                        });
                    }
                });
            }
        }
    };
</script>