参考链接
需求:从外部浏览器,点击H5链接跳转打开微信小程序;以及在微信内直接点击H5链接打开微信小程序;
步骤1: 小程序开发需要使用云开发创建项目,使用云开发生成的项目会自带云函数文件夹;
步骤2: 项目开启云开发
步骤3: 下载官方的H5静态html和public文件进行配置,下载地址(点击下载HTML 即可下载全部文件);下载后文件夹有两个位置需要修改:
下载的文件夹:
步骤3.1:更改静态的html:替换6项云开发字段:(直接搜索replace 将对象位置的信息改成你的云开发配置)
步骤3.2:更改public文件,跳转打开路径
上面静态html和public的index修改文件,我放在了末尾,可以详细看下;
步骤4:更改好上述两个文件后,回到微信开发者工具,将刚才修改好的public文件添加到cloudfunctions文件夹下(只需要public下的文件,静态文件html不用放进来)
步骤5:public文件夹右键上传并部署:(如报云端安装依赖和没有上传并部署问题,看下面截图)
问题5.1:如云函数右键没有上传,可能是没有连接上云函数环境。可以修改project.config.json文件,修改对应的目录cloudfunctionRoot为云开发的目录;
"miniprogramRoot": "miniprogram/",
"cloudfunctionRoot": "cloudfunctions/",
**问题5.2:**上传并部署-报问题缺少依赖:安装依赖即可;
npm install --production
步骤6:开启两个权限:
开启6.1:开启 未登录用户访问云资源权限设置:
开启6.2:云函数的权限设置:开启 允许所有用户访问
步骤7:上传之前修改好的云环境参数的静态H5文件:jump-mp.html
上传成功后,点击详情,复制链接在微信和浏览器地址栏都可以打开小程序了;
8.此时操作完,按理来说就可以通过链接打开微信小程序了;但实际操作中,发现在微信端可以打开,但是外部浏览器输入链接后,没有跳转微信打开,没反应了,直接如下图:
**问题8.1:**查看jump-mp.html代码,将原方法注释,使用try catch方法 alert(res),看看到底什么原因导致,再具体修改即可。
代码:
async function openWeapp(onBeforeJump) {var c = window.cconst res = await c.callFunction({name: 'public',data: {action: 'getUrlScheme',},})console.warn(res)if (onBeforeJump) {onBeforeJump()}location.href = res.result.openlink}/* async function openWeapp(onBeforeJump) {alert('静态')var c = window.ctry {const res = await c.callFunction({name: 'public',data: {action: 'getUrlScheme',},})alert(res)alert(res.result.openlink)console.warn(res)//跳转地址alert(res.result.openlink)if (onBeforeJump) {onBeforeJump()}alert(res.result.openlink)location.href = res.result.openlink} catch (error) {alert(error)}} */
我当时问题报的:Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID , cloud function service error code -501023, error message Unauthenticated access is denied (callid 1626072949050-0.6283798683396115); at cloud.callFunction api;
步骤9:打开链接成功跳转到小程序
微信端打开链接:
外部浏览器打开链接:
步骤10.部分代码:
10.1生成静态H5连接的文件:jump-mp.html
<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 = falsevar isDesktop = falseif (navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|IEMobile)/i)) {isMobile = true} else {isDesktop = true}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) {console.log('开放标签 ready')})launchBtn.addEventListener('launch', function (e) {console.log('开放标签 success')})launchBtn.addEventListener('error', function (e) {console.log('开放标签 fail', e.detail)})wx.config({// debug: true, // 调试时可开启appId: 'wxf6be280b0bb', // <!-- 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 AppIDresourceAppid: 'wxf6be280b0bb', // <!-- replace -->// 资源方环境 IDresourceEnv: 'zuihuibaomarket-1gerisnfx', // <!-- replace -->})await c.init()window.c = cvar 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}}})// 如果在外部浏览器链接中打开,不跳转微信小程序,可能是返回的res有问题;可以把这个方法注释掉 把下方的注释方法打开,根据具体的报错进行修改async function openWeapp(onBeforeJump) {var c = window.cconst res = await c.callFunction({name: 'public',data: {action: 'getUrlScheme',},})console.warn(res)if (onBeforeJump) {onBeforeJump()}location.href = res.result.openlink}/* async function openWeapp(onBeforeJump) {alert('静态')var c = window.ctry {const res = await c.callFunction({name: 'public',data: {action: 'getUrlScheme',},})alert(res)alert(res.result.openlink)console.warn(res)//跳转地址alert(res.result.openlink)if (onBeforeJump) {onBeforeJump()}alert(res.result.openlink)location.href = res.result.openlink} catch (error) {alert(error)}} */</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 “惠多保”...</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"><iclass="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 “惠多保”</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_bafb9bdb0517" path="pages/index/index"><!-- replace --><template><buttonstyle="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>
10.2:public文件夹下的index.js云函数:
// 云函数入口文件
const cloud = require('wx-server-sdk')cloud.init()// 云函数入口函数
exports.main = async (event, context) => {const wxContext = cloud.getWXContext()switch (event.action) {case 'getUrlScheme': {return getUrlScheme()}}return 'action not found'
}async function getUrlScheme() {return cloud.openapi.urlscheme.generate({jumpWxa: {// path: '/page/component/index', // <!-- replace -->// 外部浏览器打开的小程序页面地址path: '/pages/index/index', // <!-- replace -->query: '',},// 如果想不过期则置为 false,并可以存到数据库isExpire: false,// 一分钟有效期expireTime: parseInt(Date.now() / 1000 + 60),})
}
10.3public下的另外两个文件config.json和package.json无需修改