flex+gmap

废话少说， 直接上代码：
  onMapReady(event):void{
     var latitude:Number = 36.07;
     var longitude:Number = 103.75;
     if(datacenter!=null && datacenters.length>0){
         var tmpLatitude:Number = 0;
         var tmpLongitude:Number = 0;
         var length:int = 0;

     for each(var datacenter:DataCenter in datacenters){
          var coordinate:String = datacenter.coordinate;//新建数据中心时将地名对应的coordinate写入到数据库，此处是从数据库读出coordinate
           if(coordinate!=null && coordinate!=""){
              var latLng:Array = coordinae.split(/,/);
              tmpLatitude+=Number(latLng[0]);
              tmpLongitude+=Number(latLng[1]);
              length++;
          }
       }
       if(length!=0){//中心位置取多个数据中心的平均值
         latitude = tmpLatitude/length;
         longitude = tmpLogitude/length;
      }
   }
     this.googMap.setCenter(new LatLng(latitude,longtitude),4, MapType.NORMAL_MAP_TYPE);
     googleMap.addControl(new PositionControl(new PositionControlOptions()));

     googleMap.addControl(new ZoomControl(new ZoomControlOptions()));
}


//标记
   function initMapMarkers():void{
     for each(var m:Marker in markers){
         googleMap.removeOverlay(m);
   }
    markers.removeAll();
   var arr:ArrayCollection = xxxx（后台返回的结果集)
    for each (var entry:XXX in arr){
        if(...业务判断){
        var latLng:Array = coordinae.split(/,/);
        latitude=Number(latLng[0]);
        longtitude=Number(latLng[1]);
        var colorValue=RGB...;
        var markerOptions:MarkerOptions = new MarkerOptions({strokeStyle:xxx样式);
        var marker:Marker = new Marker(new LatLng(latitude,longtitude),markerOptions);
        marker.addEventListener(MapMouseEvent.click,showDatacenterInfo);
        markers.addItem(marker);
        googleMap.addOverlay(marker);
}
   }
   }

   function showDatacenterInfo(event:MapMouseEvent):void{
   //业务逻辑略掉
    var content = 提示信息;
    var infoWindow:InfoWindowOptions = new InfoWindowOptions(对象);
    googleMap.openInfoWindow(event.latLng, infoWindow);
   }