百度地图多点标注实现

1.php创建json数据

$products = $this->product_db->select($where);
$products_json = json_encode($products);

2.js传入json数据

类似于这样的结构

var markerArr = [{
    title: "名称：广州火车站",
    point: "113.264531,23.157003",
    address: "广东省广州市广州火车站",
    tel: "12306"
}, {
    title: "名称：广州塔（赤岗塔）",
    point: "113.330934,23.113401",
    address: "广东省广州市广州塔（赤岗塔） ",
    tel: "18500000000"
}, {
    title: "名称：广州动物园",
    point: "113.312213,23.147267",
    address: "广东省广州市广州动物园",
    tel: "18500000000"
}, {
    title: "名称：天河公园",
    point: "113.372867,23.134274",
    address: "广东省广州市天河公园",
    tel: "18500000000"
}];

js擅长处理json数据

<script>
var products_json = {$products_json};
// 百度地图
var citymap = new citymap(products_json,'宿迁');
</script>

3.处理地图

document.write('<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=1We8imivxZnaKMujZIrlDZ0v"></script>');
function citymap(markerArr, cityName){
    this.markerArr = markerArr;
    this.cityName  = cityName;
    this.initMap = function() {
        this.createMap();//创建地图
        this.setMapEvent();//设置地图事件
        this.addMapControl();//向地图添加控件
    };
    this.createMap = function() {
        var map = new BMap.Map("dituContent");//在百度地图容器中创建一个地图
        map.centerAndZoom(cityName,'13');

        window.map = map;//将map变量存储在全局

        // 绘制点
        for (var i = 0; i < markerArr.length; i++) {
            var p0 = markerArr[i].baidu_lng;
            var p1 = markerArr[i].baidu_lat;
            var maker = this.addMarker(new window.BMap.Point(p0, p1),markerArr[i],i );
            this.addInfoWindow(maker, markerArr[i], i);
        }

    };
    this.addMarker = function(point,pro,index) {
        var myIcon = new BMap.Icon("http://api.map.baidu.com/img/markers.png",
            new BMap.Size(23, 25), {
                offset: new BMap.Size(10, 25),
                imageOffset: new BMap.Size(0, 0 - index * 25)
            });
        var marker = new BMap.Marker(point, {
            icon: myIcon
        });
        map.addOverlay(marker);
        var label = new BMap.Label(pro.name,{offset:new BMap.Size(20,-10)});
        // 设置label样式
        label.setStyle({ 
            color : "#CC3333", 
            fontSize : "13px", 
            backgroundColor :"#CCFFFF",
            border :"0", 
            fontWeight :"bold" 
        });
        marker.setLabel(label);
        return marker;
    };

    this.addInfoWindow = function(marker,pro) {
        //pop弹窗标题  
        var title = '<div style="font-weight:bold;color:#CE5521;font-size:14px"><a href="?m=home&c=product&id='+ pro.id +'">' + pro.name + '</a></div>';
        //pop弹窗信息  
        var html = [];
        html.push('<table cellspacing="0" style="table-layout:fixed;width:100%;font:12px arial,simsun,sans-serif"><tbody>');
        html.push('<tr>');
        html.push('<td style="vertical-align:top;line-height:16px;width:38px;white-space:nowrap;word-break:keep-all">地址:</td>');
        html.push('<td style="vertical-align:top;line-height:16px">' + pro.address + ' </td>');
        html.push('</tr>');
        html.push('</tbody></table>');
        var infoWindow = new BMap.InfoWindow(html.join(""), {
            title: title,
            width: 200
        });

        var openInfoWinFun = function() {
            marker.openInfoWindow(infoWindow);
        };
        marker.addEventListener("click", openInfoWinFun);
        return openInfoWinFun;
    }

    this.setMapEvent = function() {
        map.enableDragging();//启用地图拖拽事件，默认启用(可不写)
        // map.enableScrollWheelZoom();//启用地图滚轮放大缩小
        map.enableDoubleClickZoom();//启用鼠标双击放大，默认启用(可不写)
        map.enableKeyboard();//启用键盘上下左右键移动地图
    };
    this.addMapControl = function() {
        //向地图中添加缩放控件
        var ctrl_nav = new BMap.NavigationControl({anchor:BMAP_ANCHOR_TOP_LEFT,type:BMAP_NAVIGATION_CONTROL_LARGE});
        map.addControl(ctrl_nav);
            //向地图中添加缩略图控件
        var ctrl_ove = new BMap.OverviewMapControl({anchor:BMAP_ANCHOR_BOTTOM_RIGHT,isOpen:1});
        map.addControl(ctrl_ove);
            //向地图中添加比例尺控件
        var ctrl_sca = new BMap.ScaleControl({anchor:BMAP_ANCHOR_BOTTOM_LEFT});
        map.addControl(ctrl_sca);
    };
    
    this.initMap();
}