微信中使用支付宝不能直接使用，由于微信内置浏览器的原因，在微信中使用支付宝时无法跳转出去，支付宝官网给出了实例文档
支付宝官网地址
下载后
将其例子融入到vue中使用
步骤：
第一步：将ap.js放在vue项目中
第二步：在需要使用的页面引入ap.js
第三步：使用ap.js里面的方法
注意事项：
在引入ap.js的时候需要注意，这个跟引入的方式有关联，经测试使用
import '../../../src/assets/js/ap';
引入没有问题，使用
import '@/assets/js/ap';
这样引用会有问题，
如果没有引用点击支付的时候不会进行任何操作
在页面中使用
在响应的点击事件中执行如下方法即可
这里的this.urlon是传入地址，及后端返回的支付地址
_AP.pay(this.urlon);
编译打包后再同一目录下放入pay.htm
完整例子
支付的vue文件
<div class="login-btn"><el-button type="primary" @click="alipay()">支付宝</el-button></div><script>import '../../../src/assets/js/ap';export default {data: function () {return {localurl: '',urlon: ''};},mounted() {},methods: {login_info() {this.$axios({url: ':9100/api/payinfo/',// url: ':8000/api/login',method: 'post',data: {openid: '041v9G0003ZcUK1GOd400Bwpo13v9G0K'}}).then((response) => {console.log(response.data, 'res');if (response.data.status == 200) {sessionStorage.setItem('user', this.param.username);sessionStorage.setItem('type', response.data.type);sessionStorage.setItem('permissions0', response.data.permissions0);sessionStorage.setItem('permissions1', response.data.permissions1);sessionStorage.setItem('permissions2', response.data.permissions2);sessionStorage.setItem('permissions3', response.data.permissions3);this.$router.push('/dashboard');} else {alert('您好！用户名或密码错误，请重试!');}}).catch(function (error) {});},alipay() {this.$axios({url: '后端地址',method: 'post',data: {out_trade_no: '这个订单编号随意写，不能重复（例如：041v9G0003ZcUK1GOd400Bwpo13v9G0K3）',total_fee: '0.01',subject: '99预约'}}).then((response) => {if (response.data.return == 'SUCESS') {let ids = response.data.return1;let ua = window.navigator.userAgent.toLowerCase();if (ua.match(/MicroMessenger/i) == 'micromessenger') {// alert('您好！微信内置浏览器');this.urlon = ids;_AP.pay(this.urlon);}} else {alert('您好！用户名或密码错误，请重试!');}});},}};</script>
到此成功
方式二：使用静态html
将demo_get.htm中的a标签地址修改成支付回调地址即可
完整代码
<!DOCTYPE html><html><head><meta charset="utf-8"/><title>确认订单</title><meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0"/><meta name="apple-mobile-web-app-capable" content="yes"><meta name='apple-touch-fullscreen' content='yes'><meta name="apple-mobile-web-app-status-bar-style" content="black"><meta name="format-detection" content="telephone=no"><meta name="format-detection" content="address=no"><style>body{margin:0}a:active,a:hover{outline:0}button,input,optgroup,select,textarea{color:inherit;font:inherit;margin:0}button,html input[type=button],input[type=reset],input[type=submit]{-webkit-appearance:button;cursor:pointer}table{border-collapse:collapse;border-spacing:0}td,th{padding:0}img{vertical-align:middle;border:0}@-ms-viewport{width:device-width}html{font-size:312.5%;-webkit-tap-highlight-color:transparent;height:100%;min-width:320px;overflow-x:hidden}body{font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;font-size:.28em;line-height:1;color:#333;background-color:#F0EFED}h1,h2,h3,h4,h5,h6,.h1,.h2,.h3,.h4,.h5,.h6{font-weight:500;line-height:1.2;line-height:1.1}h1 small,h1 .small,h2 small,h2 .small,h3 small,h3 .small,h4 small,h4 .small,h5 small,h5 .small,h6 small,h6 .small,.h1 small,.h1 .small,.h2 small,.h2 .small,.h3 small,.h3 .small,.h4 small,.h4 .small,.h5 small,.h5 .small,.h6 small,.h6 .small{font-weight:400;line-height:1}h1,.h1,h2,.h2,h3,.h3{margin-top:.28rem;margin-bottom:.14rem}h1 small,h1 .small,.h1 small,.h1 .small,h2 small,h2 .small,.h2 small,.h2 .small,h3 small,h3 .small,.h3 small,.h3 .small{font-size:65%}h4,.h4,h5,.h5,h6,.h6{margin-top:.14rem;margin-bottom:.14rem}h4 small,h4 .small,.h4 small,.h4 .small,h5 small,h5 .small,.h5 small,.h5 .small,h6 small,h6 .small,.h6 small,.h6 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.dd-padding,dl.list dt,dl.list dd > .react{padding:.28rem .2rem}dl.list dt{font-size:.34rem;padding-bottom:.2rem;color:#333}dl.list .db{height:.88rem;line-height:.88rem;font-size:.3rem}dl.list dd dl{margin:0;margin-bottom:-1px;padding-left:.2rem;border:0}dl.list dd dl > .dd-padding,dl.list dd dl dd > .react,dl.list dd dl > dt{padding-left:0}dl.list .db > .react{color:#2BB2A3;padding:0 .2rem}dl.list-in{margin:0;border-top:0}dl.list:first-child{margin:0;border-top:0}dl.list dd > .input-weak{width:100%;display:block}dl.list dd > .btn{margin-top:-.15rem;margin-bottom:-.15rem}.kv-line > h6,.kv-line > .kv-k{display:block;width:5em;font-size:inherit;font-weight:400}.kv-line > .kv-v,.kv-line > p{display:block;-webkit-box-flex:1;-moz-box-flex:1;-ms-flex:1}.kv-line-r{display:-webkit-box;display:-ms-flexbox;margin:.2rem 0}.kv-line-r > h6,.kv-line-r > .kv-k{-webkit-box-flex:1;-moz-box-flex:1;-ms-flex:1;font-size:inherit;font-weight:400;margin-right:.2rem;display:block}.kv-line-r > .kv-v,.kv-line-r > p{display:block}ul.tab-strong{border-color:#2BB2A3;color:#2BB2A3}.tab-strong li{border-right-color:#2BB2A3}.tab-strong li.active{background:#2BB2A3}.taba li{display:block;text-align:center;-webkit-box-flex:1;-ms-flex:1;position:relative}.taba.noslide li.active:after{content:null}.taba li.active:after{content:"";display:block;position:absolute;bottom:-.08rem;border-bottom:.08rem solid #2BB2A3;width:100%}.taba li a.react{padding-top:.28rem;padding-bottom:.2rem}.taba.noslide li.active:after{content:none}.navbar{height:1.01rem;color:#FFF;background:#FE6000;display:-webkit-box;display:-ms-flexbox;position:relative}.navbar h1.nav-header{-webkit-box-flex:1;-ms-flex:1;font-size:.36rem;font-weight:lighter;text-align:center;line-height:1rem;margin:0;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}</style></head><body id="order-check" data-com="pagecommon"><header class="navbar"><h1 class="nav-header">确认订单</h1></header><div class="wrapper-list"><h4>分水农家菜代金券</h4><dl class="list"><dd><dl><dd class="kv-line-r dd-padding"><h6>购买数量：</h6><p>1</p></dd><dd class="kv-line-r dd-padding"><h6>项目单价：</h6><p>0.01元</p></dd><dd class="kv-line-r dd-padding"><h6>总额：</h6><p><strong class="color-stronger highlight-price">0.01元</strong></p></dd></dl></dd></dl><div id="pay-methods-panel" class="pay-methods-panel"><div class="wrapper buy-wrapper"><!-- 该链接是拼接的请求，需要做urlEncode --><a id="links" class="J-btn-submit btn mj-submit btn-strong btn-larger btn-block">确认支付</a> </div></div></div><script type="text/javascript" src="ap.js"></script><script>var btn = document.querySelector(".J-btn-submit");btn.addEventListener("click", function (e) {document.getElementById("links").href=这里是回调地址;e.preventDefault();e.stopPropagation();e.stopImmediatePropagation();//ele.href 是GET到支付宝收银台的URL_AP.pay(e.target.href);return false;}, false);</script></body></html>
