The Microsoft Visual J# .NET 1.1 Class Library (vjslib.dll) contains methods you can use to compress a file. The following code demonstrates how to use them.
/* Code to zip a file/folder using Visual J# library */using System;using System.IO;using java.util.zip;using java.util;using java.io;namespace Zipper{ /// <summary> /// This Class provides methods to Zip a file vjslib /// c:windowsmicrosoft.netframeworkv1.1.4322vjslib.dll /// public class Zipper { #region Constructor public Zipper(){} #endregion Constructor #region Void Methods /*CreateZipFile Method expects the path to be zipped. * The path could be a directory or a single file*/ public void CreateZipFile(string sPath) { FileOutputStream stream1 = null; ZipOutputStream stream2 = null; if (System.IO.File.Exists(sPath)) { FileInfo info2 = new FileInfo(sPath); stream1 = new FileOutputStream(sPath.Replace (info2.Extension, ".zip")); stream2 = new ZipOutputStream(stream1); this.ZipOneFile(stream1, stream2, sPath); } else if (Directory.Exists(sPath)) { stream1 = new FileOutputStream(sPath + ".zip"); stream2 = new ZipOutputStream(stream1); DirectoryInfo info1 = new DirectoryInfo(sPath); this.ZipDirectory(stream1, stream2, info1, sPath); } stream2.close(); stream1.close(); stream2.flush(); stream1.flush(); } private void CopyStream(FileInputStream src, ZipOutputStream dest) { InputStreamReader reader1 = new InputStreamReader(src); OutputStreamWriter writer1 = new OutputStreamWriter(dest); while (reader1.ready()) { writer1.write(reader1.read()); } writer1.flush(); } /*ZipDirectory Method zips the entire directory*/ private void ZipDirectory(FileOutputStream fos, ZipOutputStream zos, DirectoryInfo di, string SRootDir) { FileInfo[] infoArray2 = di.GetFiles(); foreach (FileInfo info2 in infoArray2) { ZipEntry entry1 = new ZipEntry (info2.FullName.Substring(SRootDir.LastIndexOf(@""))); entry1.setMethod(8); zos.putNextEntry(entry1); FileInputStream stream1 = new FileInputStream (info2.FullName); this.CopyStream(stream1, zos); zos.closeEntry(); stream1.close(); } DirectoryInfo[] infoArray1 = di.GetDirectories(); foreach (DirectoryInfo info1 in infoArray1) { this.ZipDirectory(fos, zos, info1, SRootDir); } } /*ZipOneFile Method zips the file*/ private void ZipOneFile(FileOutputStream fos, ZipOutputStream zos, string sFullName) { ZipEntry entry1 = new ZipEntry(sFullName.Substring (sFullName.LastIndexOf(@""))); entry1.setMethod(8); zos.putNextEntry(entry1); FileInputStream stream1 = new FileInputStream(sFullName); this.CopyStream(stream1, zos); zos.closeEntry(); stream1.close(); } #endregion Void Methods }}
