实现效果：

1、聚合效果：

?2、撒点效果：

?具体实现步骤：

1、项目中引入openlayer

cnpm i ol --save

2、配置(按需引入)

（1）新建一个vue文件

（2）template

<div id="map"></div>

（3）js部分

引入相关配置文件，这是我的所有引入，你可以根据你的情况删一删

import "ol/ol.css";
import View from "ol/View";
import Map from "ol/Map";
import TileLayer from "ol/layer/Tile";
import Overlay from "ol/Overlay";
import XYZ from "ol/source/XYZ";
import { Vector as SourceVec ,Cluster } from "ol/source";
import { Feature } from "ol";
import { Vector as LayerVec , Vector as VectorLayer } from "ol/layer";
import { Point, LineString } from "ol/geom";

import {
  Style,
  Icon,
  Fill,
  Stroke,
  Text,
  Circle as CircleStyle,
} from "ol/style";

import { OSM, TileArcGISRest } from "ol/source";

3、实现地图展示

?mounted：

mounted() {
  this.initMap();
},

methods：我这里提供了两种地图的模板，都是在线的，内网的话换成你自己的地址

initMap(){
    //渲染地图
      var layers = [
        //深蓝色背景
        new TileLayer({
          source: new XYZ({
            url:
            "https://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}",
          }),
        }),
        //初始化背景
        // new TileLayer({
        //   source: new OSM(),
        // }),
        
      ];

      this.map = new Map({
        layers: layers,
        target: "map",
        view: new View({
          projection: 'EPSG:4326',
          center: [120, 30],
          zoom: 10,
          minZoom: 5,
          maxZoom: 14
        }),
      });
      //点击提示当前的坐标
      this.map.on(
        "click",
        function (evt) {
          alert(evt.coordinate[0] + ";" + evt.coordinate[1]);
        },
        map
      );
}

4、撒点功能

?mounted：

mounted() {
  this.initMap();
},

methods：

initMap(){
    //渲染地图
      var layers = [
         //深蓝色背景
        // new TileLayer({
        //   source: new XYZ({
        //     url:
        //       "https://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}",
        //   }),
        // }),
        //初始化背景
        new TileLayer({
          source: new OSM(),
        }),
        
      ];

      this.map = new Map({
        layers: layers,
        target: "map",
        view: new View({
          projection: 'EPSG:4326',
          center: [120, 30],
          zoom: 10,
          minZoom: 5,
          maxZoom: 14
        }),
      });
      //点击提示当前的坐标
      this.map.on(
        "click",
        function (evt) {
          alert(evt.coordinate[0] + ";" + evt.coordinate[1]);
        },
        map
      );
    //我这里是写的固定数据点，所以可以直接渲染完地址直接调用
    this.addMarker()
},
addMarker(){
    //创建画板
    let sourceArr =  new SourceVec({}); 
    //定义随机数据，这里随机了200个
    for (var i = 1; i <= 200; i++) {
      //点的坐标信息
      let coordinates = [120.00 + Math.random(), 30.00 + Math.random()];
      let feature = new Feature(new Point(coordinates));
      let markerStyle = new Style({
          image: new Icon({
            opacity: 0.75,
            src: this.fixedStationImg1,
        }),
      })
      feature.setStyle(markerStyle)
      sourceArr.addFeature(feature);
    }


     //LayerVec /VectorLayer  这两种都可以
      var layer = new VectorLayer({
          source: sourceArr,
        })

      //地图添加画板
      this.map.addLayer(
        layer
      );  
    
}

5、聚合效果

?mounted：

mounted() {
  this.initMap();
},

methods：

initMap(){
    //渲染地图
      var layers = [
         //深蓝色背景
        // new TileLayer({
        //   source: new XYZ({
        //     url:
        //       "https://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}",
        //   }),
        // }),
        //初始化背景
        new TileLayer({
          source: new OSM(),
        }),
        
      ];

      this.map = new Map({
        layers: layers,
        target: "map",
        view: new View({
          projection: 'EPSG:4326',
          center: [120, 30],
          zoom: 10,
          minZoom: 5,
          maxZoom: 14
        }),
      });
      //点击提示当前的坐标
      this.map.on(
        "click",
        function (evt) {
          alert(evt.coordinate[0] + ";" + evt.coordinate[1]);
        },
        map
      );
    //我这里是写的固定数据点，所以可以直接渲染完地址直接调用
    this.addMarker()
},
addMarker(){
    //创建画板
    let sourceArr =  new SourceVec({}); 
    //定义随机数据，这里随机了200个
    for (var i = 1; i <= 200; i++) {
      //点的坐标信息
      let coordinates = [120.00 + Math.random(), 30.00 + Math.random()];
      let feature = new Feature(new Point(coordinates));
      let markerStyle = new Style({
          image: new Icon({
            opacity: 0.75,
            src: this.fixedStationImg1,
        }),
      })
      feature.setStyle(markerStyle)
      sourceArr.addFeature(feature);
    }


      //添加进map层-聚合点-LayerVec /VectorLayer  这两种都可以
      var layer = new LayerVec({
          source: this.ClusterSource,
          style: function (feature, resolution) {
            var size = feature.get('features').length;
            //如果是聚合数为1也就是最底层的则是定位图标
            if (size == 1) {
              return new Style({
                image: new Icon({
                  anchor: [0.5, 1],
                  src: require("../../assets/Img/marker_yes.png"),
                })
              })
            }else {
              //这里设置聚合部分的样式
              return new Style({
                image: new CircleStyle({
                  radius: 30,
                  stroke: new Stroke({
                    color: 'white'
                  }),
                  fill: new Fill({
                    color: 'blue'
                  })
                }),
                text: new Text({
                  text: size.toString(),
                  fill: new Fill({
                    color: 'white'
                  })
                })
              })
            }
          }
        })   

      //地图添加画板
      this.map.addLayer(
        layer
      );  
    
}