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>本文链接：https://my.lmcjl.com/post/20071.html
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