c#解压文件的实例方法
#region 解压 文件 zip 格式 rar 格式
/// <summary>
///解压文件
/// </summary>
/// <param name="fileFromUnZip">解压前的文件路径（绝对路径）</param>
/// <param name="fileToUnZip">解压后的文件目录（绝对路径）</param>
public static void UnpackFile(string fileFromUnZip, string fileToUnZip)
{
//获取压缩类型
string unType = fileFromUnZip.Substring(fileFromUnZip.LastIndexOf(".") + 1, 3).ToLower();
switch (unType)
{
case "rar":
UnRar(fileFromUnZip, fileToUnZip);
break;
case "zip":
UnZip(fileFromUnZip, fileToUnZip);
break;
}
}
//解压rar格式的文件
private static void UnRar(string fileFromUnZip, string fileToUnZip)
{
using (Process Process1 = new Process())// 开启一个进程 执行解压工作
{
string ServerDir = ConfigurationManager.AppSettings["UnpackFile"].ToString();//rar工具的安装路径 必须要安装 WinRAR //例于：C:\Program Files (x86)\WinRAR\RAR.exe
Process1.StartInfo.UseShellExecute = false;
Process1.StartInfo.RedirectStandardInput = true;
Process1.StartInfo.RedirectStandardOutput = true;
Process1.StartInfo.RedirectStandardError = true;
Process1.StartInfo.CreateNoWindow = true;
Process1.StartInfo.FileName = ServerDir;
Process1.StartInfo.Arguments = " x -inul -y " + fileFromUnZip + " " + fileToUnZip;
Process1.Start();//解压开始
Process1.WaitForExit();
Process1.Close();
}
}
// 解压zip 文件
public static void UnZip(string fileFromUnZip, string fileToUnZip)
{
ZipInputStream inputStream = new ZipInputStream(File.OpenRead(fileFromUnZip));
ZipEntry theEntry;
while ((theEntry = inputStream.GetNextEntry()) != null)
{
fileToUnZip += "/";
string fileName = Path.GetFileName(theEntry.Name);
string path = Path.GetDirectoryName(fileToUnZip) + "/";
// Directory.CreateDirectory(path);//生成解压目录
if (fileName != String.Empty)
{
FileStream streamWriter = File.Create(path + fileName);//解压文件到指定的目录
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = inputStream.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
streamWriter.Close();
}
}
inputStream.Close();
}
#endregion