//单个文件创建zip文件
public static string createZipfile(string path)
{
int m = 1;//块大小,单位兆
try
{
Crc32 crc = new Crc32();
ZipOutputStream zipout = new ZipOutputStream(File.Create(path + ".zip"));
FileStream fs = File.OpenRead(path);
long pai = 1024 * 1024 * m;//每m兆写一次
long forint = fs.Length / pai + 1;
byte[] buffer = null;
ZipEntry entry = new ZipEntry(Path.GetFileName(path));
entry.Size = fs.Length;
entry.DateTime = DateTime.Now;
zipout.PutNextEntry(entry);
for (long i = 1; i <= forint; i++)
{
if (pai * i < fs.Length)
{
buffer = new byte[pai];
fs.Seek(pai * (i - 1), SeekOrigin.Begin);
}
else
{
if (fs.Length < pai)
{
buffer = new byte[fs.Length];
}
else
{
buffer = new byte[fs.Length - pai * (i - 1)];
fs.Seek(pai * (i - 1), SeekOrigin.Begin);
}
}
fs.Read(buffer, 0, buffer.Length);
crc.Reset();
crc.Update(buffer);
zipout.Write(buffer, 0, buffer.Length);
zipout.Flush();
}
//this.byteFile = buffer;
fs.Close();
zipout.Finish();
zipout.Close();
//File.Delete(path); //删除原文件
return path + ".zip";
}
catch (Exception ex)
{
string str = ex.Message;
return path;
}
}
