From 56e9a081df00c802d17b53b83cbe779015bdcf38 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期三, 18 十月 2023 16:48:19 +0800
Subject: [PATCH] 1
---
ExportMap/cs/WebUtils.cs | 98 +++++++++++++++++++++++++++++++++++++++++++++----
1 files changed, 90 insertions(+), 8 deletions(-)
diff --git a/ExportMap/cs/WebUtils.cs b/ExportMap/cs/WebUtils.cs
index ed2a2b8..8057ebf 100644
--- a/ExportMap/cs/WebUtils.cs
+++ b/ExportMap/cs/WebUtils.cs
@@ -14,6 +14,8 @@
public class WebUtils
{
#region LFData
+ private static readonly object _obj = new object();
+
private static string _lfData;
public static string LFData
@@ -26,6 +28,50 @@
}
return _lfData;
+ }
+ }
+
+ private static byte[] _emptyPng;
+
+ public static byte[] EmptyPng
+ {
+ get
+ {
+ if (null == _emptyPng)
+ {
+ lock (_obj)
+ {
+ if (null == _emptyPng)
+ {
+ string file = Tools.BaseDir + "Sources\\empty.png";
+ _emptyPng = ReadFileToBytes(file);
+ }
+ }
+ }
+
+ return _emptyPng;
+ }
+ }
+
+ private static byte[] _emptyTerrain;
+
+ public static byte[] EmptyTerrain
+ {
+ get
+ {
+ if (null == _emptyTerrain)
+ {
+ lock (_obj)
+ {
+ if (null == _emptyTerrain)
+ {
+ string file = Tools.BaseDir + "Sources\\empty.terrain";
+ _emptyTerrain = ReadFileToBytes(file);
+ }
+ }
+ }
+
+ return _emptyTerrain;
}
}
#endregion
@@ -47,7 +93,7 @@
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound, "鏂囦欢涓嶅瓨鍦紒"));
}
- return DownloadFile(file, "layer.json");
+ return DownloadFile(file, "layer.json", "application/json");
}
/// <summary>
@@ -84,7 +130,7 @@
string file = basePath + "\\" + z + "\\" + x + "\\" + y + ".terrain";
if (!File.Exists(file))
{
- return DownloadFile(Tools.BaseDir + "\\Sources\\empty.terrain", y + ".terrain");
+ return DownloadFile(EmptyTerrain, y + ".terrain");
}
return DownloadFile(file, y + ".terrain");
@@ -107,7 +153,7 @@
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound, "鏂囦欢涓嶅瓨鍦紒"));
}
- return DownloadFile(file, y + ".png");
+ return DownloadFile(file, y + ".png", "image/png");
}
/// <summary>
@@ -124,16 +170,16 @@
string file = basePath + "\\" + z + "\\" + x + "\\" + y + ".png";
if (!File.Exists(file))
{
- return DownloadFile(Tools.BaseDir + "\\Sources\\empty.png", y + ".png");
+ return DownloadFile(EmptyPng, y + ".png", "image/png");
}
- return DownloadFile(file, y + ".png");
+ return DownloadFile(file, y + ".png", "image/png");
}
/// <summary>
/// 涓嬭浇鏂囦欢
/// </summary>
- public static HttpResponseMessage DownloadFile(string file, string fileName)
+ public static HttpResponseMessage DownloadFile(string file, string fileName, string mediaType = "application/octet-stream")
{
//string fileName = Path.GetFileName(file);
//FileStream stream = new FileStream(file, FileMode.Open);
@@ -143,7 +189,7 @@
response.Content = new StreamContent(stream);
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
response.Content.Headers.ContentDisposition.FileName = HttpUtility.UrlEncode(fileName);
- response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
+ response.Content.Headers.ContentType = new MediaTypeHeaderValue(mediaType);
//response.Content.Headers.Add("Cache-Control", "max-age=2592000"); // 缂撳瓨1涓湀
response.Content.Headers.Expires = DateTimeOffset.Now.AddMonths(1); // new DateTimeOffset(DateTime.Now.AddMonths(1));
@@ -151,7 +197,43 @@
return response;
}
- #region 鍙戦�佽姹�
+ /// <summary>
+ /// 涓嬭浇鏂囦欢
+ /// </summary>
+ public static HttpResponseMessage DownloadFile(byte[] bytes, string fileName, string mediaType = "application/octet-stream")
+ {
+ MemoryStream ms = new MemoryStream(bytes);
+
+ HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
+ response.Content = new StreamContent(ms);
+ response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
+ response.Content.Headers.ContentDisposition.FileName = HttpUtility.UrlEncode(fileName);
+ response.Content.Headers.ContentType = new MediaTypeHeaderValue(mediaType);
+
+ //response.Content.Headers.Add("Cache-Control", "max-age=2592000"); // 缂撳瓨1涓湀
+ response.Content.Headers.Expires = DateTimeOffset.Now.AddMonths(1); // new DateTimeOffset(DateTime.Now.AddMonths(1));
+
+ return response;
+ }
+
+ #region 宸ュ叿绫�
+ /// <summary>
+ /// 璇诲彇鏂囦欢鑷砨yte[]
+ /// </summary>
+ public static byte[] ReadFileToBytes(string file)
+ {
+ using (FileStream fs = new FileStream(file, FileMode.Open))
+ {
+ int len = (int)fs.Length;
+ byte[] bytes = new byte[len];
+
+ fs.Read(bytes, 0, len);
+ fs.Flush();
+
+ return bytes;
+ }
+ }
+
/// <summary>
/// Get璇锋眰
/// </summary>
--
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