/// <summary>
/// 压缩单个文件
/// </summary>
/// <param name="fileToZip">要压缩的文件</param>
/// <param name="zipedFile">压缩后的文件</param>
/// <param name="compressionLevel">压缩等级</param>
/// <param name="blockSize">每次写入大小</param>
public void ZipFile(string fileToZip, string zipedFile, int compressionLevel, int blockSize)
{
//如果文件没有找到，则报错
if (!System.IO.File.Exists(fileToZip))
{
throw new System.IO.FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
}
using (System.IO.FileStream ZipFile = System.IO.File.Create(zipedFile))
{
using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
{
using (System.IO.FileStream StreamToZip = new System.IO.FileStream(fileToZip, System.IO.FileMode.Open, System.IO.FileAccess.Read))
{
string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);
ZipEntry ZipEntry = new ZipEntry(fileName);
ZipStream.PutNextEntry(ZipEntry);
ZipStream.SetLevel(compressionLevel);
byte[] buffer = new byte[blockSize];
int sizeRead = 0;
try
{
do
{
sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);
ZipStream.Write(buffer, 0, sizeRead);
}
while (sizeRead > 0);
}
catch (System.Exception ex)
{
throw ex;
}
StreamToZip.Close();
}
ZipStream.Finish();
ZipStream.Close();
}
ZipFile.Close();
}
}
/// <summary>
/// 压缩单个文件
/// </summary>
/// <param name="fileToZip">要进行压缩的文件名</param>
/// <param name="zipedFile">压缩后生成的压缩文件名</param>
/// <param name="compressionLevel">压缩级别</param>
public void ZipFile(string fileToZip, string zipedFile, int compressionLevel = 9)
{
//如果文件没有找到，则报错
if (!File.Exists(fileToZip))
{
throw new System.IO.FileNotFoundException("指定要压缩的文件: " + fileToZip + " 不存在!");
}
using (FileStream fs = File.OpenRead(fileToZip))
{
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
using (FileStream ZipFile = File.Create(zipedFile))
{
using (ZipOutputStream ZipStream = new ZipOutputStream(ZipFile))
{
string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\") + 1);
ZipEntry ZipEntry = new ZipEntry(fileName);
ZipStream.PutNextEntry(ZipEntry);
ZipStream.SetLevel(compressionLevel);
ZipStream.Write(buffer, 0, buffer.Length);
ZipStream.Finish();
ZipStream.Close();
}
}
}
}