Due to project requirements, you need to invoke the small program on the H5 page to make the paymentCopy the code

The official link: developers.weixin.qq.com/miniprogram…

Implementation idea:

  • The configuration of the applets development account is omitted
  • Applets cloud development configuration

  • Click static website — > Unopened click open

  • After opening the wechat official HTML file upload

  • Development access

  • Configure cloud function permissions

  • Develop cloud function code

// const cloud = require('wx-server-sdk') cloud.init() // cloud function exports.main = async (event, event) context) => { const wxContext = cloud.getWXContext() switch (event.action) { case 'getUrlScheme': { return getUrlScheme(event.params) } } return 'action not found' } async function getUrlScheme(params) { return cloud.openapi.urlscheme.generate({ jumpWxa: { path: `pages/member-pay/member-pay`, // <! -- replace --> query: params } }) }Copy the code
  • If the H5 interface is run in a public account environment, you need to set the PATH attribute in WX-open-launch-pervasive p for paramete r transfer schemes

The code is as follows:

<html>
  <head>
    <title>打开小程序</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1">
    <script>
      window.onerror = e => {
        console.error(e)
        alert('发生错误' + e)
      }
    </script>
    <!-- weui 样式 -->
    <link rel="stylesheet" href="https://res.wx.qq.com/open/libs/weui/2.4.1/weui.min.css"></link>
    <!-- 调试用的移动端 console -->
    <!-- <script src="https://cdn.jsdelivr.net/npm/eruda"></script> -->
    <!-- <script>eruda.init();</script> -->
    <!-- 公众号 JSSDK -->
    <script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
    <!-- 云开发 Web SDK -->
    <script src="https://res.wx.qq.com/open/js/cloudbase/1.1.0/cloud.js"></script>
    <script>
      function docReady(fn) {
        if (document.readyState === 'complete' || document.readyState === 'interactive') {
          fn()
        } else {
          document.addEventListener('DOMContentLoaded', fn);
        }
      }

      docReady(async function() {
        var ua = navigator.userAgent.toLowerCase()
        var isWXWork = ua.match(/wxwork/i) == 'wxwork'
        var isWeixin = !isWXWork && ua.match(/micromessenger/i) == 'micromessenger'
        var isMobile = false
        var isDesktop = false
        if (navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|IEMobile)/i)) {
          isMobile = true
        } else {
          isDesktop = true
        }
        var path = `pages/member-pay/member-pay${location.search}` // 设置小程序换起界面及参数
        if (isWeixin) {
          var containerEl = document.getElementById('wechat-web-container')
          containerEl.classList.remove('hidden')
          containerEl.classList.add('full', 'wechat-web-container')

          var launchBtn = document.getElementById('launch-btn')
          launchBtn.addEventListener('ready', function (e) {
            launchBtn.setAttribute("path", path);  // 为path属性进行负值
            console.log('开放标签 ready')
          })
          launchBtn.addEventListener('launch', function (e) {
            console.log('开放标签 success')
            history.back()
          })
          launchBtn.addEventListener('error', function (e) {
            console.log('开放标签 fail', e.detail)
            history.back()
          })

          wx.config({
            // debug: true, // 调试时可开启
            appId: 'wx456721c015491920', // <!-- replace -->
            timestamp: 0, // 必填，填任意数字即可
            nonceStr: 'nonceStr', // 必填，填任意非空字符串即可
            signature: 'signature', // 必填，填任意非空字符串即可
            jsApiList: ['chooseImage'], // 必填，随意一个接口即可 
            openTagList:['wx-open-launch-weapp'], // 填入打开小程序的开放标签名
          })
        } else if (isDesktop) {
          // 在 pc 上则给提示引导到手机端打开
          var containerEl = document.getElementById('desktop-web-container')
          containerEl.classList.remove('hidden')
          containerEl.classList.add('full', 'desktop-web-container')
        }  else {
          var containerEl = document.getElementById('public-web-container')
          containerEl.classList.remove('hidden')
          containerEl.classList.add('full', 'public-web-container')
          var c = new cloud.Cloud({
            // 必填，表示是未登录模式
            identityless: true,
            // 资源方 AppID
            resourceAppid: 'wx456721c015491920', // <!-- replace -->
            // 资源方环境 ID
            resourceEnv: 'h5-pay-1g71duxu35ace864', // <!-- replace -->
          })
          await c.init()
          window.c = c

          var buttonEl = document.getElementById('public-web-jump-button')
          var buttonLoadingEl = document.getElementById('public-web-jump-button-loading')
          try {
            await openWeapp(() => {
              buttonEl.classList.remove('weui-btn_loading')
              buttonLoadingEl.classList.add('hidden')
            })
          } catch (e) {
            buttonEl.classList.remove('weui-btn_loading')
            buttonLoadingEl.classList.add('hidden')
            throw e
          }
        }
      })

      async function openWeapp(onBeforeJump) {
        var c = window.c
        let subSearch = location.search.substr(1)
        const res = await c.callFunction({
          name: 'public',
          data: {
            action: 'getUrlScheme',
            params: subSearch
          },
        })
        console.warn(res)
        if (onBeforeJump) {
          onBeforeJump()
        }
        // let launchBtn = document.getElementById('launch-btn')
        // launchBtn.setAttribute("path", `pages/member-pay/member-pay${location.search}`);  //HTML 属性
        location.assign(res.result.openlink)
        console.warn(location)
      }

    </script>
    <style>
      .hidden {
        display: none;
      }

      .full {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
      }

      .public-web-container {
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .public-web-container p {
        position: absolute;
        top: 40%;
      }

      .public-web-container a {
        position: absolute;
        bottom: 40%;
      }

      .wechat-web-container {
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .wechat-web-container p {
        position: absolute;
        top: 40%;
      }

      .wechat-web-container wx-open-launch-weapp {
        position: absolute;
        bottom: 40%;
        left: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .desktop-web-container {
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .desktop-web-container p {
        position: absolute;
        top: 40%;
      }
    </style>
  </head>
  <body>
    <div class="page full">
      <div id="public-web-container" class="hidden">
        <p class="">正在打开 “云财收银台”...</p> <!-- replace -->
        <a id="public-web-jump-button" href="javascript:" class="weui-btn weui-btn_primary weui-btn_loading" onclick="openWeapp()">
          <span id="public-web-jump-button-loading" class="weui-primary-loading weui-primary-loading_transparent"><i class="weui-primary-loading__dot"></i></span>
          打开小程序
        </a>
      </div>
      <div id="wechat-web-container" class="hidden">
        <p class="">点击以下按钮打开 “云财收银台”</p> <!-- replace -->
        <!-- 跳转小程序的开放标签。文档 https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_Open_Tag.html -->

        <wx-open-launch-weapp id="launch-btn" username="gh_3eef4dde7ae3"> 
          <template>
            <button style="width: 200px; height: 45px; text-align: center; font-size: 17px; display: block; margin: 0 auto; padding: 8px 24px; border: none; border-radius: 4px; background-color: #07c160; color:#fff;">打开小程序</button>
          </template>
        </wx-open-launch-weapp>

      </div>
      <div id="desktop-web-container" class="hidden">
        <p class="">请在手机打开网页链接</p>
      </div>
    </div>
  </body>
</html>
Copy the code

Note: h5 run in the browser and WeChat public side, the scheme for small programs and parameters adopted different, special attention should be paid Resources: developers.weixin.qq.com/community/d…