vue3使用leaflet地图

npm  i  leaflet@1.7.1  axios

下载全国省市区的json数据，可放在public目录下，也可放在后台服务器，有跨域问题，后端解决。

链接: https://pan.baidu.com/s/1LpO17UJgR4dyDO5VZW5hVw?pwd=w2re

页面代码

<template><div id="map" style="z-index:1"></div>
</template>
<script lang="ts">
import { reactive, getCurrentInstance, toRefs, onMounted, nextTick, defineComponent, watch } from 'vue';
import "leaflet/dist/leaflet.css";
import * as L from "leaflet";
import axios from "axios";export default defineComponent({setup(props: any, { emit }: any) {onMounted(async () => {nextTick(() => {initMap();getmarkers()});});const { proxy } = getCurrentInstance() as any;const data = reactive({geoJSONlayer: {} as any,map: {} as any,provinceZoom: 5, // 省级别cityZoom: 7, // 市级别areaZoom: 9, // 区级别townZoom: 11, // 镇级别currentZoom: 5, // 当前级别markers: [] as any[],initCode: "100000", // 初始codecurrentCode: "100000", //当前codeinitName: "全国", //初始namecurrentName: "全国", //当前namecurrentlatlng: [] as any,defaultlatlng: [113.88308, 22.55329], // [经度,维度]superiorCodeArr: [] as any, //上一级的codesuperiorNameArr: [] as any, //上一级的nameallBgColor: ["#f7acbc", "#deab8a", "#817936", "#444693", "#ef5b9c", "#fedcbd",],});// 初始化地图const initMap = async () => {let mapData = {minZoom: 4,maxZoom: 18,center: [data.defaultlatlng[1], data.defaultlatlng[0]],zoom: data.provinceZoom,zoomControl: true,attributionControl: false,crs: L.CRS.EPSG3857,}let map = L.map("map", mapData);var center = map.getCenter(); // 获取新的中心点data.map = map; //data上需要挂载L.tileLayer("http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}").addTo(map);getJson();map.on("click", (e: any) => {});map.on("zoomend", (e: any) => {//获取当前放大或者缩小的等级data.currentZoom = e.target.getZoom();backMapArea(data.currentZoom)});map.on("moveend", (e: any) => {});}// 显示高亮地图const getJson = (val?: any) => {let code = val ? val : data.initCode;data.currentCode = codeaxios.get(`${proxy.VITE_API_REQUEST_URL}/js/mapgeo/${code}.geojson`).then((res) => {if (res.status === 200) {data.geoJSONlayer = L.geoJSON(res.data, {style: () => {return {color: "white",fillColor: data.allBgColor[Math.floor(Math.random() * data.allBgColor.length)],weight: 1,fillOpacity: 0.5,};},onEachFeature: (feature: any, layer: any) => {feature.properties &&feature.properties.name &&layer.bindTooltip(feature.properties.name, {direction: "bottom",className: "my_tooltip",permanent: true,});},}).on("click", (e: any) => {let proObj = e.layer.feature.properties;console.log("proObj===", proObj);if (proObj.childrenNum > 0 && proObj.adcode) {data.currentCode = proObj.adcode;data.currentName = proObj.name;data.superiorNameArr.push(proObj.name)let tempAcroutes = [...data.superiorCodeArr, ...proObj.acroutes]data.superiorCodeArr = Array.from(new Set(tempAcroutes));let zoom =data.superiorCodeArr.length === 1? data.cityZoom: data.superiorCodeArr.length === 2? data.areaZoom: data.townZoom;data.currentZoom = zoom;if (proObj.center) { // 根据点击的管辖市区镇的中心经纬度data.currentlatlng = proObj.center;data.map.flyTo([proObj.center[1], proObj.center[0]], zoom)} else { // 根据点击所在点的经纬度data.currentlatlng = [e.latlng.lng, e.latlng.lat]data.map.flyTo([e.latlng.lat, e.latlng.lng], zoom)}// 移除数据data.geoJSONlayer.remove();// 重新加载数据getJson(proObj.adcode);} else {proxy.$message.warning("没有数据");}}).addTo(data.map);}}).catch((err) => {// 请求失败时的处理逻辑console.log(err);});}// 获取所有的markersconst getmarkers = () => {let list = [{ dev_latitude: 22.15329, dev_longitude: 113.12308 },{ dev_latitude: 22.25229, dev_longitude: 113.21308 },{ dev_latitude: 22.35129, dev_longitude: 113.38138 },{ dev_latitude: 22.45429, dev_longitude: 113.48318 },{ dev_latitude: 22.55529, dev_longitude: 113.58328 },{ dev_latitude: 22.65629, dev_longitude: 113.68358 },{ dev_latitude: 24.75729, dev_longitude: 113.78398 },{ dev_latitude: 25.75729, dev_longitude: 114.78398 },{ dev_latitude: 26.75729, dev_longitude: 115.78398 },{ dev_latitude: 27.75729, dev_longitude: 116.78398 },{ dev_latitude: 28.75729, dev_longitude: 117.78398 },];list.map((v) => {addmarker(v);});}// 添加markerconst addmarker = (item: any) => {var marker = L.marker([item.dev_latitude, item.dev_longitude]).addTo(data.map);marker.bindPopup(`标题`).openPopup();data.markers.push(marker);}const backMapArea = (scale: any) => {if (data.superiorCodeArr.length > 1 && scale < data.currentZoom) {data.currentCode = data.superiorCodeArr[data.superiorCodeArr.length - 1];data.superiorCodeArr.pop();data.superiorNameArr.pop();data.currentName = data.superiorNameArr.length > 0 ? data.superiorNameArr[data.superiorNameArr.length - 1] : data.initNamedata.geoJSONlayer.remove();getJson(data.currentCode)} else if (scale <= 5 && data.currentZoom > 5 && data.currentCode != data.initCode) {data.currentCode = data.initCode;data.superiorCodeArr = [];data.superiorNameArr = [];data.currentName = data.initNamedata.geoJSONlayer.remove();getJson()}}return { ...toRefs(data), }}
})
</script>
<style scoped lang="scss">
#map {height: 100%;width: 100%;background-color: #040823;
}:deep(.my_tooltip) {color: #fff;background: transparent;border: none;font-size: 18px;box-shadow: none;
}
</style>

效果图