首先呢，先说下document.ejs，它是一个HTML模板库，在React中的主要作用是引用一些npm包不存在，而恰巧你又需要使用的库或插件。
接下来说一下使用高德地图原生API在React中使用，先看一下我的document.ejs的配置
ps:密钥用自己的哦，我就不贴出来了。[申请高德地图密钥](https://lbs.amap.com/api/android-sdk/guide/create-project/get-key)
<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<meta name="apple-mobile-web-app-capable" content="yes"/>
<meta name="apple-mobile-web-app-status-bar-style" content="black"/>
<meta name="format-detection" content="telephone=no"/>
<meta name="format-detection" content="email=no"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" />
<title><%= context.title %></title>
<script type="text/javascript" src="http://webapi.amap.com/maps?key=%密钥%&v=1.4.7"></script>
<script type="text/javascript" src="http://webapi.amap.com/loca?key=%密钥%"></script>
</head>
<body>
<div id="root"></div>
</body>
</html>
React 中我的组件是这样写的；
ps：全程使用document.ejs文件做的引用未使用高德地图在React封装的npm包，切记要有window.AMap的引用，不然会全局报错。
import React from "react";
const AMap = window.AMap; //此处的引用document.ejs全局AMap对象，不做window事件是找不到的
export default class extends React.Component{
heatmapLoad = (map)=>{//热力图
let heatmap;
map.plugin(["AMap.Heatmap"], function () {
//初始化heatmap对象
heatmap = new AMap.Heatmap(map, {
radius: 25, //给定半径
opacity: [0, 0.8]
});
//设置数据集：该数据为北京部分“公园”数据
heatmap.setDataSet({
data: data, //热力图数据
max: 100
});
});
};
componentDidMount() {
//此处获取Map的div元素使用的是id， 当然也是可以使用ref的形式
//ref获取div元素 ref={(ref)=>{this.mapBox = ref};} 此处写在div元素上
//DidMount获取 let {mapBox} = this 将new AMap 中 'mapBox' 引号去掉即可
let map = new AMap.Map('mapBox', {//启动3D地图
zoom:11,//级别
center: [116.397428, 39.90923],//中心点坐标
pitch:50,
//rotation:-15,
viewMode:'3D',//开启3D视图,默认为关闭
buildingAnimation:true,//楼块出现是否带动画
});
this.heatmapLoad(map);
}
render() {
return <div>
<div id='mapBox' style={{width:'100%',height:'500px'}}/>
</div>
}
}
下面提供一组高德热力图的数据，贴到data处即可
let data = [{
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"lat": 39.988585,
"count": 10
}, {
"lng": 116.389275,
"lat": 39.925818,
"count": 11
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"lat": 39.810742,
"count": 12
}, {
"lng": 116.481707,
"lat": 39.940089,
"count": 13
}, {
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"lat": 39.880172,
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}, {
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"lat": 39.91181,
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}, {
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}, {
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"lat": 39.874114,
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}, {
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"lat": 39.914529,
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}, {
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"lat": 39.908556,
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}, {
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"lat": 39.875916,
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}, {
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