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具體壓縮、解壓代碼實現參照網絡上的代碼,貼出概要代碼:
復制代碼 代碼如下:
/// <summary>
/// 壓縮文件
/// </summary>
/// <param name="sourceFilePath">源文件路徑</param>
/// <param name="destinationPath">壓縮文件后的保存路徑</param>
/// <returns>壓縮是否成功</returns>
public bool Compress(string sourceFilePath, string destinationPath)
{
try
{
string[] filenames = Directory.GetFiles(sourceFilePath);
using (ZipOutputStream zs = new ZipOutputStream(File.Create(destinationPath)))
{
zs.SetLevel(9);
byte[] buffer = new byte[4096];
foreach (string file in filenames)
{
ZipEntry entry = new ZipEntry(Path.GetFileName(file));
entry.DateTime = DateTime.Now;
zs.PutNextEntry(entry);
using (FileStream fs = File.OpenRead(file))
{
int sourceBytes;
do
{
sourceBytes = fs.Read(buffer, 0, buffer.Length);
zs.Write(buffer, 0, sourceBytes);
}
while (sourceBytes > 0);
}
}
zs.Finish();
zs.Flush();
zs.Close();
}
}
catch (Exception)
{
return false;
}
return true;
} public bool DeCompress(string sourceFilePath, string destinationPath)
{
try
{
using (ZipInputStream zs = new ZipInputStream(File.OpenRead(sourceFilePath)))
{
ZipEntry entry = null;
//解壓縮*.rar文件運行至此處出錯:Wrong Local header signature: 0x21726152,解壓*.zip文件不出錯
while ((entry = zs.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(entry.Name);
string fileName = Path.GetFileName(entry.Name);
if (!string.IsNullOrEmpty(fileName))
{
using (FileStream streamWriter = File.Create(destinationPath + entry.Name))
{
int size = 2048;
byte[] data = new byte[size];
while (true)
{
size = zs.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}
}
}
catch (System.Exception)
{
return false;
}
return true;
}
如果需解壓*.rar的壓縮文件在網絡也可以找到相關的實現代碼,概要代碼:
復制代碼 代碼如下:
public bool DeCompressRAR(string sourceFilePath, string destinationPath)
{
try
{
string SeverDir = @"D:/Program Files/WinRAR";//rar.exe的要目錄
Process ProcessDecompression = new Process();
ProcessDecompression.StartInfo.FileName = SeverDir + "http://rar.exe";
Directory.CreateDirectory(sourceFilePath);
ProcessDecompression.StartInfo.Arguments = " X " + sourceFilePath + " " + destinationPath;
ProcessDecompression.Start();
while (!ProcessDecompression.HasExited)
{
//nothing to do here.
}
return true;
}
catch (System.Exception)
{
return false;
}
}
我本想利用FileUpload控件將上傳的壓縮文件解壓后保存至相對應的目錄并更新數據庫文件目錄,后發現一些較好的用于上傳的開源軟件:如NeatUpload,SWFUpload可以較方便的實現我的需求,遂沒有過多糾纏于SharpZipLib,可能關于SharpZipLib的壓縮與解壓有其它用法,不能被我誤導,以上代碼是從網絡上整合出來的,因為它太過于重復和散亂。
AspNet技術:asp.net SharpZipLib的壓縮與解壓問題,轉載需保留來源!
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