c# – SharpZipLib创建一个带有内存字符串的存档,并作为附件下载

发布时间：2020-12-15 18:13:15 所属栏目：百科来源：网络整理

导读：我使用DotNetZip创建一个带有内存字符串的zip存档,并使用以下代码将其下载为附件. byte[] formXml = UTF8Encoding.Default.GetBytes("formpkgTest1/pkg/form");byte[] formHtml = UTF8Encoding.Default.GetBytes("htmlbodyTest2/body/html");ZipFile zipFile

我使用DotNetZip创建一个带有内存字符串的zip存档,并使用以下代码将其下载为附件.

byte[] formXml = UTF8Encoding.Default.GetBytes("<form><pkg>Test1</pkg></form>");
byte[] formHtml = UTF8Encoding.Default.GetBytes("<html><body>Test2</body></html>");

ZipFile zipFile = new ZipFile();
zipFile.AddEntry("Form.xml",formXml);
zipFile.AddEntry("Form.html",formHtml);
Response.ClearContent();
Response.ClearHeaders();
Response.AppendHeader("content-disposition","attachment; filename=FormsPackage.zip");
zipFile.Save(Response.OutputStream); 
zipFile.Dispose();

现在我需要对SharpZipLib做同样的事情.我该怎么做？ SharpZipLib是否支持将文件添加为字节数组？

解决方法

试试以下

MemoryStream msFormXml = new MemoryStream(UTF8Encoding.Default.GetBytes("<form><pkg>Test1</pkg></form>"));
MemoryStream msFormHTML = new MemoryStream(UTF8Encoding.Default.GetBytes("<html><body>Test2</body></html>"));

MemoryStream outputMemStream = new MemoryStream();
ZipOutputStream zipStream = new ZipOutputStream(outputMemStream);

zipStream.SetLevel(3); //0-9,9 being the highest level of compression

ZipEntry xmlEntry = new ZipEntry("Form.xml");
xmlEntry.DateTime = DateTime.Now;
 zipStream.PutNextEntry(xmlEntry);
StreamUtils.Copy(msFormXml,zipStream,new byte[4096]);
zipStream.CloseEntry();

ZipEntry htmlEntry = new ZipEntry("Form.html");
htmlEntry.DateTime = DateTime.Now;
zipStream.PutNextEntry(htmlEntry);
StreamUtils.Copy(msFormHTML,new byte[4096]);
zipStream.CloseEntry();

zipStream.IsStreamOwner = false; 
zipStream.Close(); 

outputMemStream.Position = 0;

byte[] byteArray = outputMemStream.ToArray();

Response.Clear();
Response.AppendHeader("Content-Disposition","attachment; filename=FormsPackage.zip");
Response.AppendHeader("Content-Length",byteArray.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.BinaryWrite(byteArray);

（编辑：李大同）

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