因为项目需要打包文件,就在同事的建议下用ICSharpCode写了个打包函数.ICSharpCode的介绍就不说了.具体请到官方网站 http://www.icsharpcode.net/ 上了解.
首先引用ICSharpCode.SharpZipLib.dll,没有在这里下载:https://files.cnblogs.com/KenBlove/ICSharpCode.SharpZipLib.rar
代码实现多文件,自定义文件,整目录打包等功能.好了..奉上代码:
/// Zips the specified zip path.
/// </summary>
/// <param name="strZipPath">The zip path.</param>
/// <param name="strZipTopDirectoryPath">The zip top directory path.</param>
/// <param name="intZipLevel">The zip level.</param>
/// <param name="strPassword">The password.</param>
/// <param name="filesOrDirectoriesPaths">The files or directories paths.</param>
/// <returns></returns>
private bool Zip(string strZipPath, string strZipTopDirectoryPath, int intZipLevel, string strPassword, string[] filesOrDirectoriesPaths)
{
try
{
List<string> AllFilesPath = new List<string>();
if (filesOrDirectoriesPaths.Length > 0) // get all files path
{
for (int i = 0; i < filesOrDirectoriesPaths.Length; i++)
{
if (File.Exists(filesOrDirectoriesPaths[i]))
{
AllFilesPath.Add(filesOrDirectoriesPaths[i]);
}
else if (Directory.Exists(filesOrDirectoriesPaths[i]))
{
GetDirectoryFiles(filesOrDirectoriesPaths[i], AllFilesPath);
}
}
}
if (AllFilesPath.Count > 0)
{
ZipOutputStream zipOutputStream = new ZipOutputStream(File.Create(strZipPath));
zipOutputStream.SetLevel(intZipLevel);
zipOutputStream.Password = strPassword;
for (int i = 0; i < AllFilesPath.Count; i++)
{
string strFile = AllFilesPath[i].ToString();
try
{
if (strFile.Substring(strFile.Length - 1) == "\\") //folder
{
string strFileName = strFile.Replace(strZipTopDirectoryPath, "");
if (strFileName.StartsWith("\\"))
{
strFileName = strFileName.Substring(1);
}
ZipEntry entry = new ZipEntry(strFileName);
entry.DateTime = DateTime.Now;
zipOutputStream.PutNextEntry(entry);
}
else //file
{
FileStream fs = File.OpenRead(strFile);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
string strFileName = strFile.Replace(strZipTopDirectoryPath, "");
if (strFileName.StartsWith("\\"))
{
strFileName = strFileName.Substring(1);
}
ZipEntry entry = new ZipEntry(strFileName);
entry.DateTime = DateTime.Now;
zipOutputStream.PutNextEntry(entry);
zipOutputStream.Write(buffer, 0, buffer.Length);
fs.Close();
fs.Dispose();
}
}
catch
{
continue;
}
}
zipOutputStream.Finish();
zipOutputStream.Close();
return true;
}
else
{
return false;
}
}
catch
{
return false;
}
}
/// <summary>
/// Gets the directory files.
/// </summary>
/// <param name="strParentDirectoryPath">The parent directory path.</param>
/// <param name="AllFilesPath">All files path.</param>
private void GetDirectoryFiles(string strParentDirectoryPath, List<string> AllFilesPath)
{
string[] files = Directory.GetFiles(strParentDirectoryPath);
for (int i = 0; i < files.Length; i++)
{
AllFilesPath.Add(files[i]);
}
string[] directorys = Directory.GetDirectories(strParentDirectoryPath);
for (int i = 0; i < directorys.Length; i++)
{
GetDirectoryFiles(directorys[i], AllFilesPath);
}
if (files.Length == 0 && directorys.Length == 0) //empty folder
{
AllFilesPath.Add(strParentDirectoryPath);
}
}
调用也很简单:
string strZipTopDirectoryPath = @"C:\Documents and Settings\ken\Desktop\Task1\";
int intZipLevel = 6;
string strPassword = "";
string[] filesOrDirectoriesPaths = new string[] { @"C:\Documents and Settings\ken\Desktop\Task1\zipdemo\11\",
@"C:\Documents and Settings\ken\Desktop\Task1\zipdemo\Bin\ICSharpCode.SharpZipLib.dll" };
Zip(strZipPath, strZipTopDirectoryPath, intZipLevel, strPassword, filesOrDirectoriesPaths);
就这样.如果需要尽管拿走.
(代码参考过网络上的资源,如有冒犯,莫怪莫怪~)
由于上边代码对于大文件是一次读入，所以遇到大文件的时候是占用资源比较紧张。所以改为分段读取，每次读取64K数据：
string fileName = file.Replace(zipTopDirectory, "");
if (fileName.StartsWith("\\"))
fileName = fileName.Substring(1);
ZipEntry entry = new ZipEntry(fileName);
entry.DateTime = DateTime.Now;
zipedStream.PutNextEntry(entry);
for (long j = 0; j < fs.Length; j += 65536)
{
int byteLength = 65536;
if ((fs.Length - j) < 65536)
{
byteLength = (int)(fs.Length - j);
}
byte[] buffer = new byte[byteLength];
fs.Read(buffer, 0, byteLength);
zipedStream.Write(buffer, 0, byteLength);
}
fs.Close();
if (fileName.StartsWith("\\"))
fileName = fileName.Substring(1);
ZipEntry entry = new ZipEntry(fileName);
entry.DateTime = DateTime.Now;
zipedStream.PutNextEntry(entry);
for (long j = 0; j < fs.Length; j += 65536)
{
int byteLength = 65536;
if ((fs.Length - j) < 65536)
{
byteLength = (int)(fs.Length - j);
}
byte[] buffer = new byte[byteLength];
fs.Read(buffer, 0, byteLength);
zipedStream.Write(buffer, 0, byteLength);
}
fs.Close();