C# SharpZipLib ~ 如何从 zip 中提取特定文件
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原文地址: http://stackoverflow.com/questions/1076031/
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SharpZipLib ~ How to extract specific files from a zip
提问by KevinDeus
Ok,
好的，
I have a list of files (SourceFile objects which just contain the filename only) then I want to pull those specific files out of a zip and dump them into a temp directory so I can distribute them later.
我有一个文件列表（仅包含文件名的 SourceFile 对象）然后我想从 zip 中提取这些特定文件并将它们转储到临时目录中，以便我可以稍后分发它们。
I came up with this, but I am unsure on how to proceed next..
我想出了这个，但我不确定下一步如何进行..
private List<string> ExtractSelectedFiles()
{
List<SourceFile> zipFilePaths = new List<SourceFile>();
List<string> tempFilePaths = new List<string>();
if (!File.Exists(this.txtSourceSVNBuildPackage.Text)) { return tempFilePaths; };
FileStream zipFileStream = File.OpenRead(this.txtSourceSVNBuildPackage.Text);
ZipInputStream inStream = new ZipInputStream(zipFileStream);
foreach (SourceFile currentFile in _selectedSourceFiles)
{
bool getNextEntry = true;
while (getNextEntry)
{
ZipEntry entry = inStream.GetNextEntry();
getNextEntry = (entry != null);
if (getNextEntry)
{
if (fileType == ".dll")
{
if (sourcefile.Name == Path.GetFileName(entry.Name))
{
//Extract file into a temp directory somewhere
//tempFilePaths.Add("extractedfilepath")
}
}
}
}
}
return tempFilePaths;
}
FYI:
供参考：
public class SourceFile
{
public string Name { get; set; } //ex. name = "Fred.dll"
}
回答by KevinDeus
ok.. figured I'd update you all after I got together the missing piece I needed.
好的.. 我想我会在我整理好我需要的缺失部分后更新你们。
//in the code somewhere above:
string tempDirectory = Environment.GetEnvironmentVariable("TEMP");
string createPath = tempDirectory + "\" + Path.GetFileName(entry.Name);
//my missing piece..
//Extract file into a temp directory somewhere
FileStream streamWriter = File.Create(createPath);
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = inStream.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
streamWriter.Close();
