vue中调用百度地图获取经纬度的实现
项目中,需要实现获取当前位置的经纬度,或者搜索某个位置并获取经纬度信息,我使用的的是vue,地图使用的是百度地图。
默认自动获取当前位置经纬度
拖动小红标 获取经纬度
关键词 查询获取经纬度
前期准备
首先,我们需要取百度官方申请一个地图api秘钥,https://lbsyun.baidu.com/apiconsole/key 进入后在应用管理,我的应用去申请即可。
申请好以后,我们打开vue项目中public文件下的index.html文件,拼接百度AK值并引入
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=WFKACU6v7aiUdnkgtMCqdWBZC68KpUXv"></script>
如上所示,红色区域为AK值,自行拼接自己的,可以设置权限为公开或者针对网址白名单。
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=WFKACU6v7aiUdnkgtMCqdWBZC68KpUXv"></script>
我使用了elementui的弹窗,输入框,提示,如果你没使用elementui,记得更换哦!
HTML代码
<template> <div> <el-dialog @close="clearDialog" :close-on-click-modal="false" :title="text" style="text-align: left" :visible.sync="popup" width="30%" > <div class="form-layer"> <el-form label-width="100px" size="mini"> <el-form-item label="获取定位"> <el-button type="primary" @click="fixedPos">重新定位</el-button> </el-form-item> <el-form-item label="当前纬度"> <p>{{latitude}}</p> </el-form-item> <el-form-item label="当前经度"> <p>{{longitude}}</p> </el-form-item> <el-form-item> <div class="f-a-c"> <el-input v-model="keyWords" placeholder="请输入地区" style="width: 230px;margin-right: 6px;"></el-input> <el-button type="primary" @click="setPlace" :disabled="!keyWords">查询</el-button> </div> </el-form-item> </el-form> <div id="map"></div> </div> <div slot="footer" class="dialog-footer"> <el-button size="small" type="primary" v-if="type != '2'" @click="btnSubmit()" >确 认</el-button > <el-button size="small" @click="popup = false">取 消</el-button> </div> </el-dialog> </div> </template>
JS代码
<script> export default { name: "mapView", data() { return { map: null, local: null, mk: null, latitude: '', longitude: '', keyWords: '' }; }, methods: { // 打开弹窗,name为弹窗名称 async openDialog(name) { this.text = name; this.popup = true; this.initMap(); }, // 确认 btnSubmit() { let key = { latitude: this.latitude, longitude: this.longitude } // 打印经纬度 console.log(key); this.popup = false; }, initMap() { this.$nextTick(() => { this.map = new BMap.Map("map"); let point = new BMap.Point(116.404, 39.915); this.map.centerAndZoom(point, 12); this.map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放 this.map.addControl(new BMap.NavigationControl()); this.fixedPos(); }); }, // 点击定位-定位到当前位置 fixedPos() { const _this = this; const geolocation = new BMap.Geolocation(); this.confirmLoading = true; geolocation.getCurrentPosition(function (r) { if (this.getStatus() == BMAP_STATUS_SUCCESS) { _this.handleMarker(_this, r.point); let myGeo = new BMap.Geocoder(); myGeo.getLocation( new BMap.Point(r.point.lng, r.point.lat), function (result) { _this.confirmLoading = false; if (result) { _this.latitude = result.point.lat; _this.longitude = result.point.lng; } } ); } else { _this.$message.error("failed" + this.getStatus()); } }); }, // 搜索地址 setPlace() { this.local = new BMap.LocalSearch(this.map, { onSearchComplete: this.searchPlace, }); this.local.search(this.keyWords); }, searchPlace() { if (this.local.getResults() != undefined) { this.map.clearOverlays(); //清除地图上所有覆盖物 if (this.local.getResults().getPoi(0)) { let point = this.local.getResults().getPoi(0).point; //获取第一个智能搜索的结果 this.map.centerAndZoom(point, 18); this.handleMarker(this, point); console.log("经度:" + point.lng + "--" + "纬度" + point.lat); this.latitude = point.lat; this.longitude = point.lng; } else { this.$message.error("未匹配到地点!"); } } else { this.$message.error("未找到搜索结果!"); } }, // 设置标注 handleMarker(obj, point) { let that = this; obj.mk = new BMap.Marker(point); obj.map.addOverlay(obj.mk); obj.mk.enableDragging(); // 可拖拽 obj.mk.addEventListener("dragend", function (e) { // 监听标注的拖拽,获取拖拽后的经纬度 that.latitude = e.point.lat; that.longitude = e.point.lng; }); obj.map.panTo(point); }, } }; </script>
CSS代码
<style scoped> .form-layer { width: 100%; } #map { margin-top: 30px; width: 100%; height: 300px; border: 1px solid gray; box-sizing: border-box; overflow: hidden; } /deep/ .el-dialog { min-width: 550px; } /deep/ .el-dialog__body { padding: 10px; } </style>
完整代码
<template> <div> <el-dialog @close="clearDialog" :close-on-click-modal="false" :title="text" style="text-align: left" :visible.sync="popup" width="30%" > <div class="form-layer"> <el-form label-width="100px" size="mini"> <el-form-item label="获取定位"> <el-button type="primary" @click="fixedPos">重新定位</el-button> </el-form-item> <el-form-item label="当前纬度"> <p>{{latitude}}</p> </el-form-item> <el-form-item label="当前经度"> <p>{{longitude}}</p> </el-form-item> <el-form-item> <div class="f-a-c"> <el-input v-model="keyWords" placeholder="请输入地区" style="width: 230px;margin-right: 6px;"></el-input> <el-button type="primary" @click="setPlace" :disabled="!keyWords">查询</el-button> </div> </el-form-item> </el-form> <div id="map"></div> </div> <div slot="footer" class="dialog-footer"> <el-button size="small" type="primary" v-if="type != '2'" @click="btnSubmit()" >确 认</el-button > <el-button size="small" @click="popup = false">取 消</el-button> </div> </el-dialog> </div> </template> <script> export default { name: "mapView", data() { return { map: null, local: null, mk: null, latitude: '', longitude: '', keyWords: '' }; }, methods: { // 打开弹窗,name为弹窗名称 async openDialog(name) { this.text = name; this.popup = true; this.initMap(); }, // 确认 btnSubmit() { let key = { latitude: this.latitude, longitude: this.longitude } // 打印经纬度 console.log(key); this.popup = false; }, initMap() { this.$nextTick(() => { this.map = new BMap.Map("map"); let point = new BMap.Point(116.404, 39.915); this.map.centerAndZoom(point, 12); this.map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放 this.map.addControl(new BMap.NavigationControl()); this.fixedPos(); }); }, // 点击定位-定位到当前位置 fixedPos() { const _this = this; const geolocation = new BMap.Geolocation(); this.confirmLoading = true; geolocation.getCurrentPosition(function (r) { if (this.getStatus() == BMAP_STATUS_SUCCESS) { _this.handleMarker(_this, r.point); let myGeo = new BMap.Geocoder(); myGeo.getLocation( new BMap.Point(r.point.lng, r.point.lat), function (result) { _this.confirmLoading = false; if (result) { _this.latitude = result.point.lat; _this.longitude = result.point.lng; } } ); } else { _this.$message.error("failed" + this.getStatus()); } }); }, // 搜索地址 setPlace() { this.local = new BMap.LocalSearch(this.map, { onSearchComplete: this.searchPlace, }); this.local.search(this.keyWords); }, searchPlace() { if (this.local.getResults() != undefined) { this.map.clearOverlays(); //清除地图上所有覆盖物 if (this.local.getResults().getPoi(0)) { let point = this.local.getResults().getPoi(0).point; //获取第一个智能搜索的结果 this.map.centerAndZoom(point, 18); this.handleMarker(this, point); console.log("经度:" + point.lng + "--" + "纬度" + point.lat); this.latitude = point.lat; this.longitude = point.lng; } else { this.$message.error("未匹配到地点!"); } } else { this.$message.error("未找到搜索结果!"); } }, // 设置标注 handleMarker(obj, point) { let that = this; obj.mk = new BMap.Marker(point); obj.map.addOverlay(obj.mk); obj.mk.enableDragging(); // 可拖拽 obj.mk.addEventListener("dragend", function (e) { // 监听标注的拖拽,获取拖拽后的经纬度 that.latitude = e.point.lat; that.longitude = e.point.lng; }); obj.map.panTo(point); }, } }; </script> <style scoped> .form-layer { width: 100%; } #map { margin-top: 30px; width: 100%; height: 300px; border: 1px solid gray; box-sizing: border-box; overflow: hidden; } /deep/ .el-dialog { min-width: 550px; } /deep/ .el-dialog__body { padding: 10px; } </style>
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