BMap api is not loaded（Echarts 空气质量图引入）
2024-06-20 12:20:57
原因：在mounted初始化地图的时候，因为异步问题会导致BMap is not defined，也就是百度的api还没完全引入或者加载完成，就已经进行地图初始化了
新建一个map.js
export function loadBMap(ak) {return new Promise(function (resolve, reject) {if (typeof BMap !== 'undefined') {resolve(BMap)return true}window.onBMapCallback = function () {resolve(BMap)}let script = document.createElement('script')script.type = 'text/javascript'script.src = 'http://api.map.baidu.com/api?v=2.0&ak=' + ak + '&__ec_v__=20190126&callback=onBMapCallback'script.onerror = rejectdocument.head.appendChild(script)}) }在所需要的的页面中引入
在mounted引用
这是我引入的Echart空气质量图
直接放进你的vue组件中就可运行，当然前提是引入了Echarts和BMap百度地图的npm包
<template><div id="main"></div> </template><script> import { loadBMap } from "../assets/js/map.js"; import * as echarts from "echarts"; // 请确保在引入百度地图扩展之前已经引入百度地图 JS API 脚本并成功加载 // https://api.map.baidu.com/api?v=3.0&ak=你申请的AK import "echarts/extension/bmap/bmap"; export default {data() {return {};},methods: {init() {var chartDom = document.getElementById("main");var myChart = echarts.init(chartDom);var option;const data = [{ name: "海门", value: 9 },{ name: "鄂尔多斯", value: 12 },{ name: "招远", value: 12 },{ name: "舟山", value: 12 },{ name: "齐齐哈尔", value: 14 },{ name: "盐城", value: 15 },{ name: "赤峰", value: 16 },{ name: "青岛", value: 18 },{ name: "乳山", value: 18 },{ name: "金昌", value: 19 },{ name: "泉州", value: 21 },{ name: "莱西", value: 21 },{ name: "日照", value: 21 },{ name: "胶南", value: 22 },{ name: "南通", value: 23 },{ name: "拉萨", value: 24 },{ name: "云浮", value: 24 },{ name: "梅州", value: 25 },{ name: "文登", value: 25 },{ name: "上海", value: 25 },{ name: "攀枝花", value: 25 },{ name: "威海", value: 25 },{ name: "承德", value: 25 },{ name: "厦门", value: 26 },{ name: "汕尾", value: 26 },{ name: "潮州", value: 26 },{ name: "丹东", value: 27 },{ name: "太仓", value: 27 },{ name: "曲靖", value: 27 },{ name: "烟台", value: 28 },{ name: "福州", value: 29 },{ name: "瓦房店", value: 30 },{ name: "即墨", value: 30 },{ name: "抚顺", value: 31 },{ name: "玉溪", value: 31 },{ name: "张家口", value: 31 },{ name: "阳泉", value: 31 },{ name: "莱州", value: 32 },{ name: "湖州", value: 32 },{ name: "汕头", value: 32 },{ name: "昆山", value: 33 },{ name: "宁波", value: 33 },{ name: "湛江", value: 33 },{ name: "揭阳", value: 34 },{ name: "荣成", value: 34 },{ name: "连云港", value: 35 },{ name: "葫芦岛", value: 35 },{ name: "常熟", value: 36 },{ name: "东莞", value: 36 },{ name: "河源", value: 36 },{ name: "淮安", value: 36 },{ name: "泰州", value: 36 },{ name: "南宁", value: 37 },{ name: "营口", value: 37 },{ name: "惠州", value: 37 },{ name: "江阴", value: 37 },{ name: "蓬莱", value: 37 },{ name: "韶关", value: 38 },{ name: "嘉峪关", value: 38 },{ name: "广州", value: 38 },{ name: "延安", value: 38 },{ name: "太原", value: 39 },{ name: "清远", value: 39 },{ name: "中山", value: 39 },{ name: "昆明", value: 39 },{ name: "寿光", value: 40 },{ name: "盘锦", value: 40 },{ name: "长治", value: 41 },{ name: "深圳", value: 41 },{ name: "珠海", value: 42 },{ name: "宿迁", value: 43 },{ name: "咸阳", value: 43 },{ name: "铜川", value: 44 },{ name: "平度", value: 44 },{ name: "佛山", value: 44 },{ name: "海口", value: 44 },{ name: "江门", value: 45 },{ name: "章丘", value: 45 },{ name: "肇庆", value: 46 },{ name: "大连", value: 47 },{ name: "临汾", value: 47 },{ name: "吴江", value: 47 },{ name: "石嘴山", value: 49 },{ name: "沈阳", value: 50 },{ name: "苏州", value: 50 },{ name: "茂名", value: 50 },{ name: "嘉兴", value: 51 },{ name: "长春", value: 51 },{ name: "胶州", value: 52 },{ name: "银川", value: 52 },{ name: "张家港", value: 52 },{ name: "三门峡", value: 53 },{ name: "锦州", value: 54 },{ name: "南昌", value: 54 },{ name: "柳州", value: 54 },{ name: "三亚", value: 54 },{ name: "自贡", value: 56 },{ name: "吉林", value: 56 },{ name: "阳江", value: 57 },{ name: "泸州", value: 57 },{ name: "西宁", value: 57 },{ name: "宜宾", value: 58 },{ name: "呼和浩特", value: 58 },{ name: "成都", value: 58 },{ name: "大同", value: 58 },{ name: "镇江", value: 59 },{ name: "桂林", value: 59 },{ name: "张家界", value: 59 },{ name: "宜兴", value: 59 },{ name: "北海", value: 60 },{ name: "西安", value: 61 },{ name: "金坛", value: 62 },{ name: "东营", value: 62 },{ name: "牡丹江", value: 63 },{ name: "遵义", value: 63 },{ name: "绍兴", value: 63 },{ name: "扬州", value: 64 },{ name: "常州", value: 64 },{ name: "潍坊", value: 65 },{ name: "重庆", value: 66 },{ name: "台州", value: 67 },{ name: "南京", value: 67 },{ name: "滨州", value: 70 },{ name: "贵阳", value: 71 },{ name: "无锡", value: 71 },{ name: "本溪", value: 71 },{ name: "克拉玛依", value: 72 },{ name: "渭南", value: 72 },{ name: "马鞍山", value: 72 },{ name: "宝鸡", value: 72 },{ name: "焦作", value: 75 },{ name: "句容", value: 75 },{ name: "北京", value: 79 },{ name: "徐州", value: 79 },{ name: "衡水", value: 80 },{ name: "包头", value: 80 },{ name: "绵阳", value: 80 },{ name: "乌鲁木齐", value: 84 },{ name: "枣庄", value: 84 },{ name: "杭州", value: 84 },{ name: "淄博", value: 85 },{ name: "鞍山", value: 86 },{ name: "溧阳", value: 86 },{ name: "库尔勒", value: 86 },{ name: "安阳", value: 90 },{ name: "开封", value: 90 },{ name: "济南", value: 92 },{ name: "德阳", value: 93 },{ name: "温州", value: 95 },{ name: "九江", value: 96 },{ name: "邯郸", value: 98 },{ name: "临安", value: 99 },{ name: "兰州", value: 99 },{ name: "沧州", value: 100 },{ name: "临沂", value: 103 },{ name: "南充", value: 104 },{ name: "天津", value: 105 },{ name: "富阳", value: 106 },{ name: "泰安", value: 112 },{ name: "诸暨", value: 112 },{ name: "郑州", value: 113 },{ name: "哈尔滨", value: 114 },{ name: "聊城", value: 116 },{ name: "芜湖", value: 117 },{ name: "唐山", value: 119 },{ name: "平顶山", value: 119 },{ name: "邢台", value: 119 },{ name: "德州", value: 120 },{ name: "济宁", value: 120 },{ name: "荆州", value: 127 },{ name: "宜昌", value: 130 },{ name: "义乌", value: 132 },{ name: "丽水", value: 133 },{ name: "洛阳", value: 134 },{ name: "秦皇岛", value: 136 },{ name: "株洲", value: 143 },{ name: "石家庄", value: 147 },{ name: "莱芜", value: 148 },{ name: "常德", value: 152 },{ name: "保定", value: 153 },{ name: "湘潭", value: 154 },{ name: "金华", value: 157 },{ name: "岳阳", value: 169 },{ name: "长沙", value: 175 },{ name: "衢州", value: 177 },{ name: "廊坊", value: 193 },{ name: "菏泽", value: 194 },{ name: "合肥", value: 229 },{ name: "武汉", value: 273 },{ name: "大庆", value: 279 },];const geoCoordMap = {海门: [121.15, 31.89],鄂尔多斯: [109.781327, 39.608266],招远: [120.38, 37.35],舟山: [122.207216, 29.985295],齐齐哈尔: [123.97, 47.33],盐城: [120.13, 33.38],赤峰: [118.87, 42.28],青岛: [120.33, 36.07],乳山: [121.52, 36.89],金昌: [102.188043, 38.520089],泉州: [118.58, 24.93],莱西: [120.53, 36.86],日照: [119.46, 35.42],胶南: [119.97, 35.88],南通: [121.05, 32.08],拉萨: [91.11, 29.97],云浮: [112.02, 22.93],梅州: [116.1, 24.55],文登: [122.05, 37.2],上海: [121.48, 31.22],攀枝花: [101.718637, 26.582347],威海: [122.1, 37.5],承德: [117.93, 40.97],厦门: [118.1, 24.46],汕尾: [115.375279, 22.786211],潮州: [116.63, 23.68],丹东: [124.37, 40.13],太仓: [121.1, 31.45],曲靖: [103.79, 25.51],烟台: [121.39, 37.52],福州: [119.3, 26.08],瓦房店: [121.979603, 39.627114],即墨: [120.45, 36.38],抚顺: [123.97, 41.97],玉溪: [102.52, 24.35],张家口: [114.87, 40.82],阳泉: [113.57, 37.85],莱州: [119.942327, 37.177017],湖州: [120.1, 30.86],汕头: [116.69, 23.39],昆山: [120.95, 31.39],宁波: [121.56, 29.86],湛江: [110.359377, 21.270708],揭阳: [116.35, 23.55],荣成: [122.41, 37.16],连云港: [119.16, 34.59],葫芦岛: [120.836932, 40.711052],常熟: [120.74, 31.64],东莞: [113.75, 23.04],河源: [114.68, 23.73],淮安: [119.15, 33.5],泰州: [119.9, 32.49],南宁: [108.33, 22.84],营口: [122.18, 40.65],惠州: [114.4, 23.09],江阴: [120.26, 31.91],蓬莱: [120.75, 37.8],韶关: [113.62, 24.84],嘉峪关: [98.289152, 39.77313],广州: [113.23, 23.16],延安: [109.47, 36.6],太原: [112.53, 37.87],清远: [113.01, 23.7],中山: [113.38, 22.52],昆明: [102.73, 25.04],寿光: [118.73, 36.86],盘锦: [122.070714, 41.119997],长治: [113.08, 36.18],深圳: [114.07, 22.62],珠海: [113.52, 22.3],宿迁: [118.3, 33.96],咸阳: [108.72, 34.36],铜川: [109.11, 35.09],平度: [119.97, 36.77],佛山: [113.11, 23.05],海口: [110.35, 20.02],江门: [113.06, 22.61],章丘: [117.53, 36.72],肇庆: [112.44, 23.05],大连: [121.62, 38.92],临汾: [111.5, 36.08],吴江: [120.63, 31.16],石嘴山: [106.39, 39.04],沈阳: [123.38, 41.8],苏州: [120.62, 31.32],茂名: [110.88, 21.68],嘉兴: [120.76, 30.77],长春: [125.35, 43.88],胶州: [120.03336, 36.264622],银川: [106.27, 38.47],张家港: [120.555821, 31.875428],三门峡: [111.19, 34.76],锦州: [121.15, 41.13],南昌: [115.89, 28.68],柳州: [109.4, 24.33],三亚: [109.511909, 18.252847],自贡: [104.778442, 29.33903],吉林: [126.57, 43.87],阳江: [111.95, 21.85],泸州: [105.39, 28.91],西宁: [101.74, 36.56],宜宾: [104.56, 29.77],呼和浩特: [111.65, 40.82],成都: [104.06, 30.67],大同: [113.3, 40.12],镇江: [119.44, 32.2],桂林: [110.28, 25.29],张家界: [110.479191, 29.117096],宜兴: [119.82, 31.36],北海: [109.12, 21.49],西安: [108.95, 34.27],金坛: [119.56, 31.74],东营: [118.49, 37.46],牡丹江: [129.58, 44.6],遵义: [106.9, 27.7],绍兴: [120.58, 30.01],扬州: [119.42, 32.39],常州: [119.95, 31.79],潍坊: [119.1, 36.62],重庆: [106.54, 29.59],台州: [121.420757, 28.656386],南京: [118.78, 32.04],滨州: [118.03, 37.36],贵阳: [106.71, 26.57],无锡: [120.29, 31.59],本溪: [123.73, 41.3],克拉玛依: [84.77, 45.59],渭南: [109.5, 34.52],马鞍山: [118.48, 31.56],宝鸡: [107.15, 34.38],焦作: [113.21, 35.24],句容: [119.16, 31.95],北京: [116.46, 39.92],徐州: [117.2, 34.26],衡水: [115.72, 37.72],包头: [110, 40.58],绵阳: [104.73, 31.48],乌鲁木齐: [87.68, 43.77],枣庄: [117.57, 34.86],杭州: [120.19, 30.26],淄博: [118.05, 36.78],鞍山: [122.85, 41.12],溧阳: [119.48, 31.43],库尔勒: [86.06, 41.68],安阳: [114.35, 36.1],开封: [114.35, 34.79],济南: [117, 36.65],德阳: [104.37, 31.13],温州: [120.65, 28.01],九江: [115.97, 29.71],邯郸: [114.47, 36.6],临安: [119.72, 30.23],兰州: [103.73, 36.03],沧州: [116.83, 38.33],临沂: [118.35, 35.05],南充: [106.110698, 30.837793],天津: [117.2, 39.13],富阳: [119.95, 30.07],泰安: [117.13, 36.18],诸暨: [120.23, 29.71],郑州: [113.65, 34.76],哈尔滨: [126.63, 45.75],聊城: [115.97, 36.45],芜湖: [118.38, 31.33],唐山: [118.02, 39.63],平顶山: [113.29, 33.75],邢台: [114.48, 37.05],德州: [116.29, 37.45],济宁: [116.59, 35.38],荆州: [112.239741, 30.335165],宜昌: [111.3, 30.7],义乌: [120.06, 29.32],丽水: [119.92, 28.45],洛阳: [112.44, 34.7],秦皇岛: [119.57, 39.95],株洲: [113.16, 27.83],石家庄: [114.48, 38.03],莱芜: [117.67, 36.19],常德: [111.69, 29.05],保定: [115.48, 38.85],湘潭: [112.91, 27.87],金华: [119.64, 29.12],岳阳: [113.09, 29.37],长沙: [113, 28.21],衢州: [118.88, 28.97],廊坊: [116.7, 39.53],菏泽: [115.480656, 35.23375],合肥: [117.27, 31.86],武汉: [114.31, 30.52],大庆: [125.03, 46.58],};const convertData = function (data) {var res = [];for (var i = 0; i < data.length; i++) {var geoCoord = geoCoordMap[data[i].name];if (geoCoord) {res.push({name: data[i].name,value: geoCoord.concat(data[i].value),});}}return res;};option = {title: {text: "全国主要城市空气质量 - 百度地图",subtext: "data from PM25.in",sublink: "http://www.pm25.in",left: "center",},tooltip: {trigger: "item",},bmap: {center: [104.114129, 37.550339],zoom: 5,roam: true,mapStyle: {styleJson: [{featureType: "water",elementType: "all",stylers: {color: "#d1d1d1",},},{featureType: "land",elementType: "all",stylers: {color: "#f3f3f3",},},{featureType: "railway",elementType: "all",stylers: {visibility: "off",},},{featureType: "highway",elementType: "all",stylers: {color: "#fdfdfd",},},{featureType: "highway",elementType: "labels",stylers: {visibility: "off",},},{featureType: "arterial",elementType: "geometry",stylers: {color: "#fefefe",},},{featureType: "arterial",elementType: "geometry.fill",stylers: {color: "#fefefe",},},{featureType: "poi",elementType: "all",stylers: {visibility: "off",},},{featureType: "green",elementType: "all",stylers: {visibility: "off",},},{featureType: "subway",elementType: "all",stylers: {visibility: "off",},},{featureType: "manmade",elementType: "all",stylers: {color: "#d1d1d1",},},{featureType: "local",elementType: "all",stylers: {color: "#d1d1d1",},},{featureType: "arterial",elementType: "labels",stylers: {visibility: "off",},},{featureType: "boundary",elementType: "all",stylers: {color: "#fefefe",},},{featureType: "building",elementType: "all",stylers: {color: "#d1d1d1",},},{featureType: "label",elementType: "labels.text.fill",stylers: {color: "#999999",},},],},},series: [{name: "pm2.5",type: "scatter",coordinateSystem: "bmap",data: convertData(data),symbolSize: function (val) {return val[2] / 10;},encode: {value: 2,},label: {formatter: "{b}",position: "right",show: false,},emphasis: {label: {show: true,},},},{name: "Top 5",type: "effectScatter",coordinateSystem: "bmap",data: convertData(data.sort(function (a, b) {return b.value - a.value;}).slice(0, 6)),symbolSize: function (val) {return val[2] / 10;},encode: {value: 2,},showEffectOn: "render",rippleEffect: {brushType: "stroke",},label: {formatter: "{b}",position: "right",show: true,},itemStyle: {shadowBlur: 10,shadowColor: "#333",},emphasis: {scale: true,},zlevel: 1,},],};option && myChart.setOption(option);},},mounted() {loadBMap("EGlnrCfbkZCDlamN0ap6OPQpuQhUsdmt").then(() => {this.init();});}, }; </script><style scoped>#main{height: 800px;} </style>
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