网页中嵌入google地图

一丶前言

大致需求：美国地图中标记分布的仓库图钉(鼠标经过显示地址详情)，通过输入寄收件地邮编来在地图上定位位置添加图钉，将寄件地，选择的仓库，收件地图钉折线相连接，表示大致路线。

一丶google开发者中申请密钥(YOUR_API_KEY)

进入Google Developers Console创建一个Project,申请一个地图api key,可以设置api权限和访问限制。

二丶根据官方文档先加载出地图

参照官方文档，这里官方给出的案例是异步加载的方式，但是在实际开发项目中api只能写在引入js后面，异步加载的方式会导致调用顺序而报错，因此使用同步加载方式。

1.引入在线google map js

// <script async defer src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap"></script> 官方异步
<script src="https://maps.googleapis.com/maps/api/js?key=yourkey"></script>

2.html给容器显示地图

<div id="googleMap" style="100%;height:380px;"></div>

3.初始化地图

<script>
// 初始化地图
    function initialize() {
        var mapProp = {
            center:new google.maps.LatLng(37.09024,-95.71289100000001),
            zoom:4,
            mapTypeId:google.maps.MapTypeId.ROADMAP
        };
        map = new google.maps.Map(document.getElementById("googleMap"), mapProp);
    }

    google.maps.event.addDomListener(window, 'load', initialize);
</script>

三丶在地图上创建图钉标记

1.根据坐标创建图钉

var myLatLng = {lat: -25.363, lng: 131.044};
var marker = new google.maps.Marker({
    position: myLatLng,
    map: map,
    title: 'Hello World!'
  });

上面的是官方文档创建的，我是用了MarkerWithLabel (MarkerWithLabel extends the Google Maps JavaScript API V3)方法创建。

我是根据后台返回的仓库数组创建一个图标list，循环添加事件

function builderStorageMarker() {
        $.ajax({
            url:'markerList.html',
            success:function (res) {
                warehouseList = res.data
                for(var i=0;i<res.data.length;i++){
                    var marker = new MarkerWithLabel({
                        position:new google.maps.LatLng(res.data[i].longitude,res.data[i].latgitude),
                        labelContent: res.data[i].wareHouseName,
                        labelAnchor: new google.maps.Point(7, 0),
//                        labelClass: "labels", // the CSS class for the label
                        icon:'/front/img/service/position_blue.png',
                        map: map
                    });
                    //对应的infowindow
                    marker.infowindow = new google.maps.InfoWindow({
                        content: res.data[i].address
                    });
                    //绑定对应的事件
                    (function(i, marker) {
                        google.maps.event.addListener(
                                marker,
                                'click',
                                function() {
                                    changeColor(marker,i)
                                })
                        marker.addListener('mouseover', function() {
                            marker.infowindow.open(map, marker);
                        })
                        marker.addListener('mouseout', function() {
                            marker.infowindow.close();
                        });
                    })(i, marker)
                    makerList.push(marker)
                }
            }
        })
    }

MarkerWithLabel.js下载地址

var marker = new MarkerWithLabel({
                        position:new google.maps.LatLng(-25.363,131.044),
                        labelContent:"图钉下面的名字",
                        labelAnchor: new google.maps.Point(7, 0),
//                        labelClass: "labels", // the CSS class for the label
                        icon:'图钉.png',
                        map: map
                    });

2.图钉绑定对应的事件

 marker.addListener('mouseover', function() {
                            marker.infowindow.open(map, marker);
                        })
 marker.addListener('mouseout', function() {
                            marker.infowindow.close();
                        })

3.点击图钉改变颜色

    function changeColor(maker,number) { 
//            maker.icon = '/front/img/service/position_red.png'
//            maker.setMap(map) // 使用MarkerWithLabel更改icon不起作用
        maker.setIcon('marker_red.png')
    }

 四丶根据地址或者邮编获得经纬度，然后创建图钉标记位置

    //反向地址转换(geocode()是异步函数)
    async function zipFormatPosition(zipCode) {
        return new Promise(resolve => {
            geocoder.geocode({ 'address': zipCode}, function (results, status) {
                if (status == google.maps.GeocoderStatus.OK) {
        //          var latitude = results[0].geometry.location.lat();
        //          var longitude = results[0].geometry.location.lng();
                    resolve(results[0].geometry.location)
                } else {
                    $.messageBox({
                        level: 'error',
                        message: '邮编获取地址失败，请输入正确邮编'
                    });
//                    resolve(false)
                }
            });
        })
    }

        zipFormatPosition("zipcode or address").then(result => {
            var zipPosition = result;
            if(zipPosition){
                var receiverPosition = new google.maps.LatLng(zipPosition.lat(),zipPosition.lng());
                receiverMaker = new google.maps.Marker({
                    position:receiverPosition,
                    icon:'marker_yellow.png'
                });
                receiverMaker.setMap(map);
            }
    })

 五丶构建折线连接地址

 var flightPlanCoordinates = [
          {lat: 37.772, lng: -122.214},
          {lat: 21.291, lng: -157.821},
          {lat: -18.142, lng: 178.431},
          {lat: -27.467, lng: 153.027}
        ];
        var flightPath = new google.maps.Polyline({
          path: flightPlanCoordinates,
          geodesic: true,
          strokeColor: '#FF0000',
          strokeOpacity: 1.0,
          strokeWeight: 2
        });

        flightPath.setMap(map);

 六丶彩蛋：bing地图换成了Google地图(bing map变成了demo)

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>bing</title>
</head>
<body>

<div class="fee-est us-est" onload='GetMap();'>
    <div>后来用google地图了，bing地图变成了demo</div>
</div>
<script>
    //bing地图
    function GetMap() {
        var map = new Microsoft.Maps.Map('#myMap', {
            credentials: 'AsXFUZiAIxemlXll9Pous5-umMjpOdiYdFALFnsLzWK6pzQOzXLYnbwVyojNFUnw ',
            center: new Microsoft.Maps.Location(51.50632, -0.12714),
            zoom: 10,
            disableScrollWheelZoom:true
        });
        //添加图钉
        var center = map.getCenter();

        //Create custom Pushpin
        var defaultColor = 'blue';
        var mouseDownColor = 'purple';

        var pin1 = new Microsoft.Maps.Pushpin(map.getCenter(), {
            color: defaultColor
        });
        console.log(pin1)
        var pin2 = new Microsoft.Maps.Pushpin(new Microsoft.Maps.Location(51.50632, -0.19714), {
            color: defaultColor
        });

        map.entities.push(pin1);
        map.entities.push(pin2);

        Microsoft.Maps.Events.addHandler(pin1, 'mousedown', function (e) {
            e.target.setOptions({ color: mouseDownColor });
            pin2.setOptions({ color: mouseDownColor });
        });

    }
</script>
<script type='text/javascript'
        src='http://www.bing.com/api/maps/mapcontrol?callback=GetMap&key=YOUR_API_KEY'
        async defer></script>
</body>
</html>