上代码
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>埋点示例</title>
</head><body><!-- 多种埋点触发元素 --><button id="track-button">点击事件埋点</button><form id="demo-form"><input type="text" placeholder="输入内容" name="username"><button type="submit">提交表单</button></form><div class="ad-banner" style="height: 1000px; margin-top: 1200px;">滚动到此处触发曝光埋点</div><script>// ====================== 核心工具函数 ======================// 生成唯一用户ID (持久化存储)const getUserId=() => {let userId=localStorage.getItem('userId');if(!userId) {userId=`user_${Math.random().toString(36).substr(2,9)}`;localStorage.setItem('userId',userId);}return userId;};// 获取页面基本信息const getPageContext=() => ({url: window.location.href,referrer: document.referrer,screen: `${window.screen.width}x${window.screen.height}`,userAgent: navigator.userAgent});// ====================== 埋点主函数 ======================function trackEvent (eventType,customData={}) {// 合并公共数据和自定义数据const eventData={// 基础信息event_type: eventType,timestamp: new Date().toISOString(),// 用户信息user_id: getUserId(),session_id: sessionStorage.getItem('sessionId')||(() => {const id=`session_${Date.now()}`;sessionStorage.setItem('sessionId',id);return id;})(),// 设备与页面信息...getPageContext(),// 自定义数据...customData};// 发送到测试API（实际项目替换为真实接口）fetch('https://httpbin.org/post',{method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify(eventData)}).then(res => res.json()).then(data => console.log('埋点成功:',data.json)).catch(err => console.error('埋点失败:',err));}// ====================== 多种埋点场景示例 ======================// 1. 点击事件埋点document.getElementById('track-button').addEventListener('click',() => {trackEvent('button_click',{button_id: 'track-button',button_text: '点击事件埋点'});});// 2. 表单提交埋点document.getElementById('demo-form').addEventListener('submit',(e) => {e.preventDefault();const formData=new FormData(e.target);trackEvent('form_submit',{form_id: 'demo-form',form_data: Object.fromEntries(formData)});});// 3. 广告曝光埋点（滚动到视口时触发）const adBanner=document.querySelector('.ad-banner');const observer=new IntersectionObserver((entries) => {entries.forEach(entry => {if(entry.isIntersecting) {trackEvent('ad_impression',{ad_id: 'banner_1',position: entry.boundingClientRect.y});observer.unobserve(adBanner); // 仅触发一次}});});observer.observe(adBanner);// 4. 页面生命周期埋点// 页面加载完成trackEvent('page_view',{page_type: 'homepage',load_time: performance.timing.loadEventEnd-performance.timing.navigationStart});// 页面离开时window.addEventListener('beforeunload',() => {trackEvent('page_leave',{time_spent: Date.now()-performance.timing.navigationStart});});</script>
</body></html>
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