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H5网页跳转微信小程序-nodeJs

iweb • 2021年5月9日 pm10:33 • 前端 • 阅读 45

注

微信中打开网页，可跳转微信小程序操作。

前期准备

  1. 目前仅支持在微信内打开H5页面；
  2. 已认证的服务号，服务号绑定“JS接口安全域名”下的网页可使用此标签跳转任意合法合规的小程序；
  3. 已认证的非个人主体的小程序，使用小程序云开发的静态网页托管绑定的域名下的网页，可以使用此标签跳转任意合法合规的小程序。

绑定安全域名：

登录微信公众平台进入【公众号设置】–>【功能设置】里设置好 “js接口安全域名”。

IP白名单设置：

登录微信公众平台进入【开发】–>【基本配置】，这里填写你服务器的IP。

前端代码

JavaScript
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<!DOCTYPE html>
<html lang="zh">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title></title>
        <script type="text/javascript" src="https://res2.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
        <script type="text/javascript" src="https://www.bestcyt.com/cyttest/sha.js"></script>
        <script type="text/javascript" src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
        <style>
            #app {
                width: 300px;
                height: 18.75rem;
                border: 2px solid red;
            }
 
            #launch-btn {
                z-index: 10;
                position: absolute;
                top: 0;
                right: 0;
                left: 0;
                bottom: 0;
                background: transparent;
                border: 2px solid blue;
            }
        </style>
    </head>
    <body>
        <div id="app">
 
            <wx-open-launch-weapp id="launch-btn" username="gh_c104b771629e" :path="pages/index/index.html">
                <template>
                    <style>
                        .btn {
                            padding: 12px;
                            width: 100px;
                            height: 100px;
                        }
                    </style>
                    <div style="text-align: center;align-items: center;margin: 8rem">
                        <button class="btn">打开小程序</button>
                    </div>
                </template>
            </wx-open-launch-weapp>
        </div>
        <script type="text/javascript">
            let href = location.href.split('#')[0];
            // href = encodeURIComponent(href.split('?')[0])
            
 
            // 随机字符串方法
            function randomString() {
                let len = 16;
                let chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';
                let maxPos = chars.length;
                let character = '';
                for (let i = 0; i < len; i++) {
                    character += chars.charAt(Math.floor(Math.random() * maxPos))
                }
                return character;
            }
 
            let timestamp = '';    // 时间戳
            
            $.ajax({
                url: "https://www.xxxxxxxt.com/api/user/wxLoginFWH",
                type: "get",
                dataType: "json",
                success: function(data) {
                    console.log('返回数据1---token---', data)
                    if (data.code === 200) {
 
                        let token = {
                            access_token: data.data.access_token
                        }
 
                        $.ajax({
                            url: "https://www.xxxxxx.com/api/user/wxTicket",
                            type: "post",
                            data: token,
                            dataType: "json",
                            success: function(dataToken) {
                                if (dataToken.code === 200) {
                                    timestamp = Math.round(new Date() / 1000);
                                    let noncestr = randomString();
                                    let ticket = dataToken.data.ticket;
 
                                    let signature =
                                        `jsapi_ticket=${ticket}&noncestr=${noncestr}&timestamp=${timestamp}&url=${href}`;
                                    
 
                                    wx.config({
                                        debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
                                        appId: 'wx287004cb8ad1a4f6', // 必填，公众号的唯一标识
                                        timestamp, // 必填，生成签名的时间戳
                                        nonceStr: noncestr, // 必填，生成签名的随机串
                                        signature: hex_sha1(signature),// 必填，签名
                                        jsApiList: ['onMenuShareTimeline', 'scanQRCode','chooseImage', 'previewImage','openLocation'],// 必填，需要使用的JS接口列表,
                                        openTagList: ['wx-open-launch-weapp','wx-open-launch-app']
                                    });
 
 
                                    wx.ready(function() {
                                        // alert('接口配置成功');
 
                                        $(".btn").trigger("click")
                                        $("#launch-btn").trigger("click")
                                        
                                    });
                                    var btn = document.getElementById('launch-btn');
                                    btn.addEventListener('launch', function(e) {
 
                                        alert('添加事件success');
                                    });
                                    btn.addEventListener('error', function(e) {
                                        console.log('fail', e.detail);
                                    });
 
                                    $(".btn").trigger("click")
                                    
                                    $("#btn").trigger("click")
 
 
                                }
 
                            }
                        })
                    }
 
                }
            })
        </script>
 
    </body>
</html>

nodejs接口代码

 

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