一、功能梳理

app内前h5涉及到支付的功能,ios非实物商品实付需要使用ios原生支付方式,实物商品则可以三方支付,主要的实现思路为后端返回跳转支付宝或微信的支付scheme链接,前端进行跳转支付,同时需要实时查询用户的支付状态。

整个过程中复杂的部分在于查询用户支付状态的体验方面,需要保证用户在支付成功、支付失败、跳转支付宝、微信回来或者没有跳转支付宝微信等未知的行为下的用户体验。

组件内容为底部升起的支付选择弹窗,可以选择支付宝或者微信。

二、实现步骤

  1. 用户进行下单操作,前端调用下单接口,成功则返回三方支付app跳转链接,前端进行跳转

  1. 跳转三方app同时进行查询订单接口轮训,实时获取订单状态,轮训时间定位30s,依据需求调整

  1. 用户如果支付时间超过了30s未返回我们app的情况下,需要针对此种情况进行处理,捕捉用户返回我们app的情况

三、组件可支配参数&事件设置

设置支持参数2个、事件4个,分别为

参数:

successStatus: {default: '1'}, // 支付成功的状态码,默认1errorStatus: {default: '2'} // 支付失败的状态码,默认2

事件:

@payMoney="payMoney" // 下单事件@payStatus="payStatus" //查询支付状态事件@succcessFunction="succcessFunction" // 成功支付操作@errorFunction="errorFunction" // 失败实付操作

四、从支付app返回,事件捕获方法

为了防止用户在支付时间超过我们设置轮训时长情况,需要监听用户从支付app返回当前页面,来进行查询支付状态操作。方法为监听页面显示or隐藏事件

reloadState () {// 添加监听器if (typeof document.hidden !== 'undefined') {this.hidden = 'hidden';this.visibilityChange = 'visibilitychange';} else if (typeof document.mozHidden !== 'undefined') {this.hidden = 'mozHidden';this.visibilityChange = 'mozvisibilitychange';} else if (typeof document.msHidden !== 'undefined') {this.hidden = 'msHidden';this.visibilityChange = 'msvisibilitychange';} else if (typeof document.webkitHidden !== 'undefined') {this.hidden = 'webkitHidden';this.visibilityChange = 'webkitvisibilitychange';}document.addEventListener(this.visibilityChange, this.forceUpdate);},forceUpdate () {if (document.visibilityChange === this.hidden) {} else {this.searchTimer();}},

五、组件源码

 支付宝支付 微信支付支付支付中 export default {data () {return {isApp: !!browers.appUA,timer: null,loadingPay: false,orderNo: '', // 订单号payStatus: '' // 订单支付状态};},props: {successStatus: {default: '1'}, // 支付成功的状态码,默认1errorStatus: {default: '2'} // 支付失败的状态码,默认2},mounted () {this.$once('hook:beforeDestroy', () => {clearInterval(this.timer);this.timer = null;});},methods: {reloadState () {// 添加监听器if (typeof document.hidden !== 'undefined') {this.hidden = 'hidden';this.visibilityChange = 'visibilitychange';} else if (typeof document.mozHidden !== 'undefined') {this.hidden = 'mozHidden';this.visibilityChange = 'mozvisibilitychange';} else if (typeof document.msHidden !== 'undefined') {this.hidden = 'msHidden';this.visibilityChange = 'msvisibilitychange';} else if (typeof document.webkitHidden !== 'undefined') {this.hidden = 'webkitHidden';this.visibilityChange = 'webkitvisibilitychange';}document.addEventListener(this.visibilityChange, this.forceUpdate);},forceUpdate () {if (document.visibilityChange === this.hidden) {} else {this.searchTimer();}},payFun () {this.$emit('payMoney', (res) => {this.reloadState();// 下单接口的回调,执行轮训结果this.orderNo = res.order_no;this.loadingPay = true;this.searchPay();// 监听从其他app返回,为了解决从支付宝回来不轮训的问题setTimeout(() => {location.href = res.pay_address;}, 200);});},searchPay () {this.$emit('payStatus', (res) => {if (this.payStatus === '') {this.searchTimer();}// 下单接口的回调,执行轮训结果this.payStatus = res;});},searchTimer() {if (this.timer) {return;}if (this.orderNo) {let times = 0;this.searchPay();if (this.payStatus === '') {this.timer = setInterval(res => {times++;this.searchPay();if (this.payStatus === this.$props.successStatus) {clearInterval(this.timer);this.timer = null;this.loadingPay = false;document.removeEventListener(this.visibilityChange, this.forceUpdate);// 支付成功事件this.$emit('succcessFunction', (res) => {});}if (this.payStatus === this.$props.errorStatus) {clearInterval(this.timer);this.timer = null;this.loadingPay = false;document.removeEventListener(this.visibilityChange, this.forceUpdate);// 支付失败事件this.$emit('errorFunction', (res) => {});}if (times > 30) {this.$toast('未查询到支付状态,请重新支付');clearInterval(this.timer);this.timer = null;this.loadingPay = false;document.removeEventListener(this.visibilityChange, this.forceUpdate);}}, 1000);}}}}};.pay-info {.pay-content {background: #fff;display: flex;align-items: center;justify-content: space-between;padding: 8px 0;font-size: 28px;color: #222;.pay-left {display: flex;align-items: center;}.pay-icon {width: 60px;height: 60px;margin-right: 10px}.radio-icon {width: 34px;height: 34px;}}.pay-button {width: 100%;text-align: center;margin-top: 30px;span {display: inline-block;background: #4e88f6;color: #fff;width: 100%;font-size: 32px;height: 88px;line-height: 88px;border-radius: 50px;display: inline-block;}}.loading-dom {width: 100%;height: 100vh;background: rgba(0,0,0,.5);color: #fff;text-align: center;font-size: 34px;font-weight: 500;position: fixed;display: flex;align-items: center;justify-content: center;top: 0;left: 0}}

六、父组件调用

// 下单事件payMoney (callback) {this.$axios.post(`url`, params).then((res) => {let data = res.data;if (Number(data.code) === 0) {// 执行支付操作,跳转url,结果回调给收银台组件this.currentOrder = data.data.order_no;callback(data.data);} else {this.$toast(data.message);}}).catch((e) => {});},// 轮训状态接口payStatus (callback) {this.$axios.get(`url`).then((res) => {let data = res.data;if (Number(data.code) === 0) {// 执行支付结果查询,结果回调给收银台组件callback(data.data.pay_result);if (data.data.list && data.data.list.length) {this.resultData = data.data.list;}} else {this.$toast(data.message);}}).catch((e) => {});},succcessFunction () {// 支付成功父组件操作事件this.$toast('支付成功');// 先弹出支付成功提示,延时1秒出结果弹窗setTimeout(() => {// 支付成功后刷新一下接口}, 1000);},errorFunction () {// 支付失败父组件操作事件this.$toast('支付失败,请重新发起支付');},