微信小程序与webview交互实现支付功能

<script type="text/javascript" src="https://www.gxlcms.com//res.wx.qq.com/open/js/jweixin-1.3.2.js"></script>

<!--webview中(小程序page)-->

//pages/lnyc2019/index.wxml

 <web-view class='page_web' src="{{url}}"></web-view>

 

//pages/lnyc2019/index.js

Page({ 

　　data: { 

　　　　url:'https://xxxxxxxx/wxmini/index.html'//h5地址 

　　} 

})

<!--wxPay中(小程序page)-->

// pages/wxPay/index.js

Page({

 data: {

 payTempcode:'',

 ordercode:'',

 payParam:{}

 },

 onLoad: function (options) {

 console.log('支付开始');

 console.log(options);

 this.setData({

 ordercode: options.ordercode

 });

 this.getTempcode();

 },

 // 换取支付临时code

 getTempcode:function(){

 wx.login({

 success: res => {

 // 发送 res.code 到后台换取 openId, sessionKey, unionId

 this.setData({

 payTempcode:res.code

 });

 console.log('支付code:', this.data.payTempcode);

 

 this.getPayinfo();

 }

 })

 },

 // 换取支付参数

 getPayinfo:function(){

 var self=this;

 wx.request({

 url: 'https://xxxxxx/pay/xcxpay',//后台接口地址

 data: {

 'wxcode': self.data.payTempcode,

 'ordercode': self.data.ordercode,

 'gid': x,

 },

 method: 'POST',

 success: function (res) {

 console.log(res.data.data.payinfo);

 self.setData({

 payParam: res.data.data.payinfo

 });

 console.log('支付的订单====',self.data.ordercode);

 // 调起支付

 wx.requestPayment({

 'timeStamp': self.data.payParam.time,//为字符串，否则报错

 'nonceStr': self.data.payParam.nonce_str,

 'package': `prepay_id=${self.data.payParam.prepay_id}`,

 'signType': 'MD5',

 'paySign': self.data.payParam.paysign,

 'success': function (res) {

 console.log(res)

 console.log('=======支付成功==========');

 wx.navigateTo({

 url: `/pages/lnyc2019/detail?ordercode=${self.data.ordercode}`

 })

 },

 'fail': function (res) {

 console.log(res)

 console.log('=======支付失败==========')

 wx.navigateBack({

 delta: 1//返回1个页面

 })

 }

 })

 }

 })

 }
})