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通過使用下面的功能我緩存JS，在瀏覽器的CSS文件。緩存文件瀏覽器中的
就像聰明我想cahe在瀏覽器中的圖像。
private static void CacheOrFetchFromServer(string relativePath, string absolutePath, HttpContext context)
{
Cache cache = HttpRuntime.Cache;
string content;
if (cache[relativePath] == null)
{
Encoding encoding = Encoding.GetEncoding(DefaultEncodingCodePage);
CacheDependency dependency = new CacheDependency(absolutePath);
content = File.ReadAllText(absolutePath, encoding);
cache.Insert(relativePath, content, dependency);
}
else
{
content = cache[relativePath].ToString();
}
using (StreamWriter sw = new StreamWriter(context.Response.OutputStream))
{
sw.Write(content);
}
}
我已經嘗試了下面的一個緩存圖像。但它沒有顯示圖像。
private static void CacheOrFetchImageFileFromServer(string relativePath, string absolutePath, HttpContext context)
{
string extension = System.IO.Path.GetExtension(relativePath);
if (extension.ToUpper() == ".JPG" || extension.ToUpper() == ".PNG" || extension.ToUpper() == ".GIF" || extension.ToUpper() == ".TIFF")
{
Cache cache = HttpRuntime.Cache;
System.Drawing.Image imgPhoto = null;
if (cache[relativePath] == null)
{
Encoding encoding = Encoding.GetEncoding(DefaultEncodingCodePage);
CacheDependency dependency = new CacheDependency(absolutePath);
FileStream fs = File.OpenRead(absolutePath);
byte[] data = new byte[fs.Length];
fs.Read(data, 0, data.Length);
MemoryStream ms = new MemoryStream(data);
Bitmap bmp = new Bitmap(ms);
imgPhoto = System.Drawing.Image.FromFile(absolutePath);
cache.Insert(relativePath, bmp, dependency);
}
else
{
imgPhoto = (Image) cache[relativePath];
}
context.Response.Write(absolutePath);
//using (StreamWriter sw = new StreamWriter(context.Response.OutputStream))
//{
// sw.Write(absolutePath);
//}
}
}