【解决办法】在发布地图服务后，使用地图的image接口，传入中心点、缩放、坐标范围即可返回相应范围瓦片，例如：
http://localhost:8090/iserver/services/map-WorkSpace/rest/maps/四川省/image
参数为：
center:{"x":102.68,"y":30.2}
scale:0.00000016029834
viewBounds:{"leftBottom":{"x":100.78,"y":28.3},"rightTop":{"x":104.58,"y":32.09}}
