我正在使用DotNetZip 库创建一个大约 100MB 的 zip 文件。我将 zip 文件直接保存到 Response.OutputStream
Response.Clear();
// no buffering - allows large zip files to download as they are zipped
Response.BufferOutput = false;
String ReadmeText= "Dynamic content for a readme file...\n" +
DateTime.Now.ToString("G");
string archiveName= String.Format("archive-{0}.zip",
DateTime.Now.ToString("yyyy-MMM-dd-HHmmss"));
Response.ContentType = "application/zip";
Response.AddHeader("content-disposition", "attachment; filename=" + archiveName);
using (ZipFile zip = new ZipFile())
{
// add a file entry into the zip, using content from a string
zip.AddFileFromString("Readme.txt", "", ReadmeText);
// add the set of files to the zip
zip.AddFiles(filesToInclude, "files");
// compress and write the output to OutputStream
zip.Save(Response.OutputStream);
}
Response.Close();
我需要将这个 100MB 的文件分成大约 20MB 的部分,并为用户提供下载工具。我怎样才能做到这一点?