public async Task <Stream> GetMap(string maptype, string x, string y, string z)
{
WriteFileHelper.AddList("reqnum");
//if (Redisbool == "true" || Redisbool == "TRUE")
//{
// return await GeteMapService(maptype, x, y, z);
//}
//else
//{
// return GeteMapServer(maptype, x, y, z);
//}
return(GeteMapServer(maptype, x, y, z));
}
/// <summary>
/// 带缓存功能的地图服务
/// </summary>
/// <param name="maptype">地图类型</param>
/// <param name="x">行号</param>
/// <param name="y">列号</param>
/// <param name="z">地图等级</param>
/// <returns></returns>
public async Task <Stream> GeteMapService(string maptype, string x, string y, string z)
{
if (string.IsNullOrEmpty(maptype))
{
maptype = Defaultmaptype;
}
string key = maptype + "-" + JsonHelper.GetValueByKey(maptype).version + "-" + z + "-" + x + "-" + y;
string base64 = (await SeRedisHelper.GetAsync(key)).ToString();
if (!string.IsNullOrEmpty(base64))
{
try
{
byte[] bytes = Convert.FromBase64String(base64);
Stream strem = new MemoryStream(bytes);
WriteFileHelper.AddList("redsuc");
return(strem);
}
catch (Exception e)
{
string base404 = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQAAAAEAAQMAAABmvDolAAAAA1BMVEX8+fKNaX6qAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAH0lEQVRo3u3BAQ0AAADCoPdPbQ43oAAAAAAAAAAAvg0hAAABfxmcpwAAAABJRU5ErkJggg==";
WriteFileHelper.AddList("rederr");
Log4Helper.WriteLog("redis读取错误！");
Log4Helper.WriteLog(e);
byte[] bytes = Convert.FromBase64String(base404);
Stream strem = new MemoryStream(bytes);
return(strem);
}
}
else
{
string filepath = GetMapDir(maptype, x, y, z);
string folderpath = CreateMapDir(maptype, x, y, z);
DirectoryInfo dir = new DirectoryInfo(folderpath);
if (!dir.Exists)
{
try
{
dir.Create();
}
catch (Exception e)
{
Log4Helper.WriteLog("文件夹创建失败！");
Log4Helper.WriteLog(e);
}
}
if (File.Exists(filepath))
{
try
{
FileStream fs = new FileStream(filepath, FileMode.Open,
FileAccess.Read, FileShare.Read);
WriteFileHelper.AddList("folsuc");
return(fs);
}
catch (Exception e)
{
string base404 = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQAAAAEAAQMAAABmvDolAAAAA1BMVEX8+fKNaX6qAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAH0lEQVRo3u3BAQ0AAADCoPdPbQ43oAAAAAAAAAAAvg0hAAABfxmcpwAAAABJRU5ErkJggg==";
Log4Helper.WriteLog("文件夹读取失败！");
Log4Helper.WriteLog(e);
byte[] bytes = Convert.FromBase64String(base404);
Stream strem = new MemoryStream(bytes);
WriteFileHelper.AddList("folerr");
return(strem);
}
}
else
{
string url = GetMapUrl(maptype, x, y, z);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Timeout = 60000;
request.KeepAlive = false;
request.Method = "GET";
request.ServicePoint.ConnectionLimit = 512;
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.1.4322)"; //
request.AllowAutoRedirect = true; //是否允许302
HttpWebResponse response = null;
Stream stream = null;
try
{
response = request.GetResponse() as HttpWebResponse;
stream = response.GetResponseStream();
byte[] bytes = StreamToBytes(stream);
WriteFileHelper.AddQueue(maptype, x, y, z, bytes);
WriteFileHelper.AddList("websuc");
Stream str = new MemoryStream(bytes);
return(str);
}
catch (Exception e)
{
string base404 = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQAAAAEAAQMAAABmvDolAAAAA1BMVEX8+fKNaX6qAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAH0lEQVRo3u3BAQ0AAADCoPdPbQ43oAAAAAAAAAAAvg0hAAABfxmcpwAAAABJRU5ErkJggg==";
Log4Helper.WriteLog("网络请求失败！");
Log4Helper.WriteLog(e);
byte[] bytes = Convert.FromBase64String(base404);
Stream strem = new MemoryStream(bytes);
WriteFileHelper.AddList("weberr");
return(strem);
}
finally
{
request.Abort();
if (response != null)
{
response.Close();
}
if (stream != null)
{
stream.Close();
}
}
}
}
}