ArcGIS.Server.9.3和ArcGIS API for Flex实现基本的地图浏览（一

//加载全部查询图层
			private function getAllLayer():Hashtable
			{
				var hashtable:Hashtable=new Hashtable();
				for (var i:Number = map.layerIds.length -1; i >= 0; i--)
				{
					var layer:Object = map.layers[i];
					if (layer is ArcGISDynamicMapServiceLayer)
					{
						var url:String=layer.url;//地图服务的url地址
						for each(var featurelayer:Object in layer.layerInfos)
						{
							hashtable.add(featurelayer.name,url+"/"+featurelayer.layerId.toString());//单个图层名，对应的地图服务url
						}
					}
					if (layer is ArcGISTiledMapServiceLayer)
					{
						for each(var featurelayer:Object in layer.layerInfos)
						{
							var url:String=layer.url;//地图服务的url地址
							for each(var featurelayer:Object in layer.layerInfos)
							{
								hashtable.add(featurelayer.name,url+"/"+featurelayer.layerId.toString());//单个图层名，对应的地图服务url
							}
						}
					}
					if (layer is FeatureLayer)
					{
						hashtable.add(layer.layerDetails.name,layer.url);//单个图层名，对应的地图服务url
					}
				}
				return hashtable;
			}

//hashtable，仿照的哈希表，可以不用管，key值是图层名称，value值是图层对应的url。