Unity文件压缩

public class ZIP
{
public void GetPaths(string rootPath, string[] whitelist, out List dirs, out List files)
{
rootPath = rootPath.Contains("/") ? rootPath.Replace("/", "\\") : rootPath;
rootPath = rootPath.EndsWith("\\") ? rootPath : rootPath + "\\";
dirs = new List();
files = new List();
foreach (var item in whitelist)
{
string path = Path.Combine(rootPath, item);
if (Directory.Exists(path))
{
string dirName = item.EndsWith("\\") ? item : item + "\\";
if (!dirs.Contains(dirName))
{
dirs.Add(dirName);
}
GetPaths(rootPath, path, dirs, files);
}
else if (File.Exists(path))
{
if (!files.Contains(item))
{
files.Add(item);
}
}
}
}
public void GetPaths(string rootPath, string dirPath, List dirs, List files)
{
rootPath = rootPath.Contains("/") ? rootPath.Replace("/", "\\") : rootPath;
rootPath = rootPath.EndsWith("\\") ? rootPath : rootPath + "\\";
foreach (var file in Directory.GetFiles(dirPath))
{
string filePath = file.Contains("/") ? file.Replace("/", "\\") : file;
string fileName = filePath.Replace(rootPath, "");
if (!files.Contains(fileName))
{
files.Add(fileName);
}
}
foreach (var subDir in Directory.GetDirectories(dirPath))
{
string subDirPath = subDir.Contains("/") ? subDir.Replace("/", "\\") : subDir;
string subDirName = subDirPath.Replace(rootPath, "");
subDirName = subDirName.EndsWith("\\") ? subDirName : subDirName + "\\";
if (!dirs.Contains(subDirName))
{
dirs.Add(subDirName);
}
GetPaths(rootPath, subDir, dirs, files);
}
}
public bool Zip(string rootPath, string[] _fileOrDirectoryArray, string _outputPathName, string _password = null, int level = 6)
{
if ((null == _fileOrDirectoryArray) || string.IsNullOrEmpty(_outputPathName))
{
return false;
}
ZipOutputStream zipOutputStream = new ZipOutputStream(File.Create(_outputPathName));
zipOutputStream.SetLevel(level); // 压缩质量和压缩速度的平衡点
if (!string.IsNullOrEmpty(_password))
zipOutputStream.Password = _password;
GetPaths(rootPath, _fileOrDirectoryArray, out List dirs, out List files);
foreach (var dirName in dirs)
{
ZipEntry entry = new ZipEntry(dirName);
entry.DateTime = DateTime.Now;
entry.Size = 0;
zipOutputStream.PutNextEntry(entry);
zipOutputStream.Flush();
}
foreach (var fileName in files)
{
ZipEntry entry = new ZipEntry(fileName);
entry.DateTime = DateTime.Now;
byte[] buffer = File.ReadAllBytes(Path.Combine(rootPath, fileName));
entry.Size = buffer.Length;
zipOutputStream.PutNextEntry(entry);
zipOutputStream.Write(buffer, 0, buffer.Length);
}
zipOutputStream.Finish();
zipOutputStream.Close();
return true;
}
public void Unzip(byte[] zipData,string unzipDirPath)
{
ZipEntry zip = null;
Stream stream = new MemoryStream(zipData);
ZipInputStream zipInStream = new ZipInputStream(stream);
//循环读取Zip目录下的所有文件
while ((zip = zipInStream.GetNextEntry()) != null)
{
string path = Path.Combine(unzipDirPath, zip.Name);
if (zip.IsDirectory)
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
}
else if(zip.IsFile)
{
if (File.Exists(path))
{
File.Delete(path);
}
byte[] data = new byte[(int)zipInStream.Length];
zipInStream.Read(data, 0, data.Length);
File.WriteAllBytes(path, data);
}
}
if (zipInStream != null)
{
zipInStream.Close();
}
if (stream!=null)
{
stream.Close();
}
}
}

用到的库是：

using ICSharpCode.SharpZipLib.Zip;//文档：https://icsharpcode.github.io/SharpZipLib/help/api/ICSharpCode.SharpZipLib.Zip.ZipFile.html

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