public static void Filter(HttpContext context)
{
var localPath = context.Request.Url.LocalPath.ToLower();
var isViewsStaticFile = Regex.IsMatch(localPath, @"^/views/.*\.(js|css|jpg|png|gif|doc|docx|xls|xlsx|pdf|txt)$");
var isAreaViewsStaticFile = Regex.IsMatch(localPath, @"^/areas/\w+/views/.*\.(js|css|jpg|png|gif|doc|docx|xls|xlsx|pdf|txt)$");
if (isViewsStaticFile || isAreaViewsStaticFile)
{
string filePath = FileSugar.GetMapPath(localPath);
var isExistFile = FileSugar.IsExistFile(filePath);
if (isExistFile)
{
using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
long fileSize = fileStream.Length;
byte[] fileBuffer = new byte[fileSize];
fileStream.Read(fileBuffer, 0, (int)fileSize);
//如果不写fileStream.Close()语句，用户在下载过程中选择取消，将不能再次下载
fileStream.Close();
var fileExtension = FileSugar.GetExtension(filePath);
context.Response.ContentType = fileExtension.Switch().Case(".css", "text/css").Case(".js", "text/js").Default("application/octet-stream").Break();
context.Response.AppendHeader("Content-Disposition", "attachment;filename=" + FileSugar.GetFileName(filePath));
context.Response.AddHeader("Content-Length", fileSize.ToString());
context.Response.BinaryWrite(fileBuffer);
context.Response.Flush();
context.Response.End();
}
}
}
}