百度地图：ajax获取点位数据后如何循环生成标注
设备的实体类：public class Ap { private String id;//编号 private Double longitude;//经度 private Double latitude;//纬度 //getter and setter}
省略service和dao，action中的代码：
public class ApQueryAction extends MapBaseAction{ private String aps; @Override protected String exec() throws BussinessException { List<Ap> list = mapService.getAp(); Gson gson = new Gson(); aps = gson.toJson(list); return SUCCESS; }//getter and setter
页面javascript
//获得标示物var markerList = [];//存放标注对象的数组var markerClusterer;//聚合marker对象function showAllPoint() {//判断是否存在聚合marker对象，避免重复添加标注if(markerClusterer){markerClusterer.removeMarkers(markerList);}//将标注列表清空markerList=[];$.ajax({type: "GET",url: "getAps.do",dataType: "json",success: function(data) {var Aps = eval(data.aps);for(i = 0; i<Aps.length; i++) {var apPoint = new BMap.Point(Aps.longitude,Aps.latitude);//将新增的marker对象放入数组markerList.push(new BMap.Marker(apPoint));//如果使用map.addOverlay(markerList)添加大量标注的话会导致浏览器反应速度很慢//map.addOverlay(markerList);}//使用聚合marker,添加大量标注时性能明显提高markerClusterer = new BMapLib.MarkerClusterer(map, {markers:markerList});}});}
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