我查到了压缩文件的方法,怎样通过按钮来响应这个方法呢? #region ZipClass 压缩文件 public class ZipClass { public void ZipFile(string FileToZip, string ZipedFile ,int CompressionLevel, int BlockSize,string password) { //如果文件没有找到,则报错 if (! System.IO.File.Exists(FileToZip)) { throw new System.IO.FileNotFoundException("The specified file " + FileToZip + " could not be found. Zipping aborderd"); }
System.IO.FileStream StreamToZip = new System.IO.FileStream(FileToZip,System.IO.FileMode.Open , System.IO.FileAccess.Read); System.IO.FileStream ZipFile = System.IO.File.Create(ZipedFile); ZipOutputStream ZipStream = new ZipOutputStream(ZipFile); ZipEntry ZipEntry = new ZipEntry("ZippedFile"); ZipStream.PutNextEntry(ZipEntry); ZipStream.SetLevel(CompressionLevel); byte[] buffer = new byte[BlockSize]; System.Int32 size =StreamToZip.Read(buffer,0,buffer.Length); ZipStream.Write(buffer,0,size); try { while (size < StreamToZip.Length) { int sizeRead =StreamToZip.Read(buffer,0,buffer.Length); ZipStream.Write(buffer,0,sizeRead); size += sizeRead; } } catch(System.Exception ex) { throw ex; } ZipStream.Finish(); ZipStream.Close(); StreamToZip.Close(); }
public void ZipFileMain(string[] args) { //string[] filenames = Directory.GetFiles(args[0]); string[] filenames = new string[]{args[0]};
Crc32 crc = new Crc32(); ZipOutputStream s = new ZipOutputStream(File.Create(args[1]));
s.SetLevel(6); // 0 - store only to 9 - means best compression
byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); ZipEntry entry = new ZipEntry(file);
entry.DateTime = DateTime.Now;
// set Size and the crc, because the information // about the size and crc should be stored in the header // if it is not set it is automatically written in the footer. // (in this case size == crc == -1 in the header) // Some ZIP programs have problems with zip files that don't store // the size and crc in the header. entry.Size = fs.Length; fs.Close();
不是很清楚
//地址:http://www.chenjiliang.com/Article/View.aspx?ArticleID=235&TypeID=34
//你自己参考下 看看可以变通不
目前只需要在局域网内管理数据库.
可以把代码贴出来吗?
谢谢!
#region ZipClass 压缩文件
public class ZipClass
{
public void ZipFile(string FileToZip, string ZipedFile ,int CompressionLevel, int BlockSize,string password)
{
//如果文件没有找到,则报错
if (! System.IO.File.Exists(FileToZip))
{
throw new System.IO.FileNotFoundException("The specified file " + FileToZip + " could not be found. Zipping aborderd");
}
System.IO.FileStream StreamToZip = new System.IO.FileStream(FileToZip,System.IO.FileMode.Open , System.IO.FileAccess.Read);
System.IO.FileStream ZipFile = System.IO.File.Create(ZipedFile);
ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);
ZipEntry ZipEntry = new ZipEntry("ZippedFile");
ZipStream.PutNextEntry(ZipEntry);
ZipStream.SetLevel(CompressionLevel);
byte[] buffer = new byte[BlockSize];
System.Int32 size =StreamToZip.Read(buffer,0,buffer.Length);
ZipStream.Write(buffer,0,size);
try
{
while (size < StreamToZip.Length)
{
int sizeRead =StreamToZip.Read(buffer,0,buffer.Length);
ZipStream.Write(buffer,0,sizeRead);
size += sizeRead;
}
}
catch(System.Exception ex)
{
throw ex;
}
ZipStream.Finish();
ZipStream.Close();
StreamToZip.Close();
}
public void ZipFileMain(string[] args)
{
//string[] filenames = Directory.GetFiles(args[0]);
string[] filenames = new string[]{args[0]};
Crc32 crc = new Crc32();
ZipOutputStream s = new ZipOutputStream(File.Create(args[1]));
s.SetLevel(6); // 0 - store only to 9 - means best compression
foreach (string file in filenames)
{
//打开压缩文件
FileStream fs = File.OpenRead(file);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
ZipEntry entry = new ZipEntry(file);
entry.DateTime = DateTime.Now;
// set Size and the crc, because the information
// about the size and crc should be stored in the header
// if it is not set it is automatically written in the footer.
// (in this case size == crc == -1 in the header)
// Some ZIP programs have problems with zip files that don't store
// the size and crc in the header.
entry.Size = fs.Length;
fs.Close();
crc.Reset();
crc.Update(buffer);
entry.Crc = crc.Value;
s.PutNextEntry(entry);
s.Write(buffer, 0, buffer.Length);
}
s.Finish();
s.Close();
}
}
#endregion希望各位大侠能把修改后的代码贴上来,谢谢!