Azure Maps

<!--
  说明：订阅式商业底图接入的中文示例，数据在页面内生成，可独立运行。
  核心逻辑：ol.source.XYZ 模板参数 + layer opacity + 密钥参数拼接
  依赖：OpenLayers 10.3.1 · jsDelivr CDN
-->
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta name="robots" content="noindex,follow">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>订阅式商业底图接入</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@10.3.1/ol.css">
<style>
  html,body{height:100%;margin:0}
  body{display:flex;flex-direction:column;overflow:hidden;
       font:13px/1.6 -apple-system,"Segoe UI","PingFang SC",sans-serif}
  .bar{flex:0 0 auto;padding:8px 12px;background:#f6f7f9;border-bottom:1px solid #e3e6ea;
       display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:12px;color:#58606e}
  .bar label{display:flex;gap:5px;align-items:center;cursor:pointer}
  .bar button{font:inherit;padding:3px 9px;border:1px solid #c9ced6;background:#fff;
       border-radius:5px;cursor:pointer;color:#333}
  .bar button:hover{background:#eef2f8}
  .bar input[type=range]{width:110px;vertical-align:middle}
  .bar input[type=text]{font:inherit;padding:2px 6px;border:1px solid #c9ced6;border-radius:4px}
  #map{flex:1 1 auto;min-height:0;background:#eef0f3;position:relative}
  .panel{flex:0 0 auto;max-height:34%;overflow:auto;padding:8px 12px;font-size:12px;
       background:#fff;border-top:1px solid #e3e6ea;color:#3d4451}
  .panel pre{margin:0;font-family:Consolas,"Courier New",monospace;font-size:11px;
       white-space:pre-wrap;word-break:break-all;line-height:1.5}
  .ol-attribution{font-size:11px}
  .tint canvas{filter:saturate(.25) contrast(1.2) brightness(.92)}
</style>
</head>
<body>
<div class="bar">
<label><input type="checkbox" id="extra"> 叠加订阅底图（示意）</label>
<label>不透明度 <input type="range" id="op" min="0" max="10" value="6"></label>
<span id="info">—</span>
</div>
<div id="map"></div>

<script src="https://cdn.jsdelivr.net/npm/ol@10.3.1/dist/ol.js"></script>
<script>
(function () {
  'use strict';

  if (typeof ol === 'undefined') {
    var errBox = document.getElementById('map');
    if (errBox) {
      errBox.innerHTML = '<div style="padding:20px;color:#b42318">OpenLayers 加载失败，请检查能否访问 cdn.jsdelivr.net</div>';
    }
    return;
  }

  var fromLonLat = ol.proj.fromLonLat;
  /* 订阅式底图的通用封装：模板 + 版权 + 最大级别 + 图层类名，密钥按服务要求拼进查询串 */
  function createXyzLayer(template, attributions, maxZoom, className) {
    return new ol.layer.Tile({
      source: new ol.source.XYZ({
        url: template,
        attributions: attributions,
        maxZoom: maxZoom
      }),
      className: className
    });
  }

  var extraTemplate = 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tile/{z}/{y}/{x}';

  /* 底图固定用 OSM，叠加层演示订阅式模板的封装方式 */
  var base = new ol.layer.Tile({source: new ol.source.XYZ({url: 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer/tile/{z}/{y}/{x}', attributions: 'Tiles © Esri'})});
  var extra = createXyzLayer(extraTemplate, '订阅底图示意 · Tiles © Esri', 19, 'tint');
  extra.setVisible(false);
  extra.setOpacity(0.6);

  var map = new ol.Map({
    target: 'map',
    layers: [base, extra],
    view: new ol.View({center: fromLonLat([116.397, 39.909]), zoom: 11}),
    controls: ol.control.defaults.defaults({attribution: false, zoom: true, rotate: false})
  });

  var info = document.getElementById('info');
  var chk = document.getElementById('extra');
  var op = document.getElementById('op');

  function report() {
    info.textContent = '模板 ' + extraTemplate + (chk.checked
      ? ' · 已叠加 · 不透明度 ' + extra.getOpacity().toFixed(1)
      : ' · 未叠加');
  }

  chk.addEventListener('change', function () {
    extra.setVisible(this.checked);
    report();
  });

  op.addEventListener('input', function () {
    extra.setOpacity(+this.value / 10);
    report();
  });

  report();
})();
</script>
</body>
</html>