// 切片请求控制器
public ActionResult GetTile(int x, int y, int z)
{try{ArcgisBundleHelper Helper = new ArcgisBundleHelper(@"G:\feiq\Recv Files\Map_test\map");var data = Helper.GetTile(x, y, z);return File(data, "image/jpeg");}catch (Exception ex){throw;}
}

/// <summary>
/// 缓存切片单例类
/// </summary>
public class TileCache
{/// <summary>/// 获取切片文件索引/// </summary>/// <param name="id"></param>/// <returns></returns>public BundleCache this[bundlx id]{get{lock (obj){return AddBundleCache(id);}}}private static volatile TileCache instance;private static readonly object obj = new object();private TileCache() { }//线程安全单例public static TileCache Instance{get{if (null == instance){lock (obj){if (null == instance){instance = new TileCache();}}}return instance;}}/// <summary>/// 设置最多缓存文件数目/// </summary>private static int cacheCount = 20;/// <summary>/// 切片文件缓存集合类/// </summary>private static List<BundleCache> bundleCacheList = new List<BundleCache>();/// <summary>/// 通过id返回切片缓存/// </summary>/// <param name="cache"></param>/// <returns></returns>private static BundleCache AddBundleCache(bundlx cache){string cacheid = cache.id;if (bundleCacheList.Select(e => e.BundleId).ToList().Contains(cacheid)){//更新最后访问时间BundleCache tem = bundleCacheList.Where(e => e.BundleId == cacheid).FirstOrDefault();tem.LastTime = DateTime.Now;changeCache();return bundleCacheList.Where(e => e.BundleId == cacheid).FirstOrDefault();}else{//未添加的文件，写入缓存集合BundleCache bc = new BundleCache();bc.BundleId = cache.id;bc.CTime = DateTime.Now;bc.LastTime = DateTime.Now;using (FileStream file = new FileStream(cache.bundlxFileName, FileMode.Open)){byte[] bufferfile = new byte[file.Length];file.Read(bufferfile, 0, (int)file.Length);//写入数据bc.BundlxData = bufferfile;}using (FileStream file = new FileStream(cache.bundleFileName, FileMode.Open)){byte[] bufferfile = new byte[file.Length];file.Read(bufferfile, 0, (int)file.Length);//写入数据bc.BundleData = bufferfile;}bundleCacheList.Add(bc);changeCache();return bc;}}/// <summary>/// 保证缓存文件数目一定/// </summary>private static void changeCache(){if (bundleCacheList.Count>cacheCount){bundleCacheList= bundleCacheList.OrderByDescending(e => e.LastTime).ToList().Take(cacheCount).ToList();}}
}

@{ViewBag.Title = "Index";Layout = null;
}
<style>html, body, #map {height: 100%;width: 100%;margin: 0;padding: 0;}
</style>
<div id="map"></div>
<script src="~/Content/openlayer4.64/ol.js"></script>
<script type="text/javascript">var mapurl = "/Tile/GetTile?x={x}&y={y}&z={z}";var maplayer = new ol.layer.Tile({name: "testLayer",// 瓦片图像数据源source: new ol.source.XYZ({crossOrigin: 'anonymous',url: mapurl}),opacity: 1});var map = new ol.Map({target: 'map',layers: [maplayer],view: new ol.View({center: ol.proj.fromLonLat([104.41, 33.82]),zoom: 4})});
</script>