/// <summary>
/// 向压缩文件流中追加目录
/// </summary>
/// <param name="zip">zip流</param>
/// <param name="dir">目录名</param>
/// <param name="path_len">根目录长度</param>
/// <param name="fcp">进度事件</param>
public static void AddDirectory(this ZipOutputStream zip, string dir, int path_len, FileCompressProgress fcp = null)
{
if (Directory.Exists(dir))
{
zip.PutNextEntry(new ZipEntry(dir.Substring(path_len) + (Path.DirectorySeparatorChar == dir.Last() ? Char.MinValue : Path.DirectorySeparatorChar)));
zip.CloseEntry();
foreach (var item in Directory.GetFiles(dir))
{
zip.AddFile(item, path_len, fcp); //添加文件
}
foreach (var item in Directory.GetDirectories(dir))
{
zip.AddDirectory(item, path_len, fcp); //添加子目录
}
}
}
/// <summary>
/// 对文件或目录进行压缩
/// </summary>
/// <param name="names">待压缩文件或目录</param>
/// <param name="outname">zip文件路径</param>
/// <param name="level">压缩级别</param>
/// <param name="fcp">压缩进度事件</param>
public static void ZipCompress(string name, string outname, int level = Deflater.DEFLATED, FileCompressProgress fcp = null)
{
using (var outfs = File.Create(outname))
using (var zip = new ZipOutputStream(outfs)) //创建输出流
{
zip.SetLevel(level); //设置压缩级别
var path = Path.GetDirectoryName(name); //获取文件/目录所在目录
var path_len = null == path ? 2 : path.Length; //设置添加路径起始字符，如果为根目录则为2
if (File.Exists(name))
{
zip.AddFile(name, path_len, fcp);//添加文件
}
else if (Directory.Exists(name))
{
zip.AddDirectory(name, path_len, fcp);//添加目录
}
zip.Flush();
}
}
/// <summary>
/// 对文件和目录进行压缩
/// </summary>
/// <param name="names">待压缩文件集合及目录集合</param>
/// <param name="outname">zip文件路径</param>
/// <param name="level">压缩级别</param>
/// <param name="fcp">压缩进度事件</param>
public static void ZipCompress(List <string> names, string outname, int level = Deflater.DEFLATED, FileCompressProgress fcp = null)
{
outname = outname + ".zip"; //拼接输出文件名
using (var zip = new ZipOutputStream(File.Create(outname))) //创建输出流
{
zip.SetLevel(level); //设置压缩级别
foreach (var item in names) //遍历
{
var path = Path.GetDirectoryName(item); //获取文件/目录所在目录
var path_len = null == path ? 2 : path.Length; //设置添加路径起始字符，如果为根目录则为2
if (File.Exists(item))
{
zip.AddFile(item, path_len, fcp);//添加文件
}
else if (Directory.Exists(item))
{
zip.AddDirectory(item, path_len, fcp);//添加目录
}
}
zip.Flush();
}
}