Compression and decompression of ZIP files using ant implementation zip file

Java uses ant to implement ZIP files to compress and extract zip files.

A single file is compressed into a zip file, and multiple files are compressed into a zip file.

You can compress large files.

You need to use the Ant.jar file and put it in the Lib directory.

Ant.jar Download: http://download.csdn.net/detail/xinxin19881112/8906157

Zip.java

Import Java.io.File;
Import Java.io.FileInputStream;
Import Java.io.FileOutputStream;
Import Java.io.OutputStream;
Import Java.util.zip.ZipOutputStream;

Import Org.apache.tools.zip.ZipEntry; /** * Zip Operation Tool class/public class Zip {/** * compressed file list to a zip file * @param zipfilename zip file to compress @param paths file list, multi-parameter Number * @throws Exception */public static void compress (String zipfilename, String ... paths) throws Exception {com
	Press (New FileOutputStream (zipfilename), paths); /** * Compressed file list to output stream * @param os to compress to stream * @param paths file list, Multi-parameter * @throws Exception/public static void Compr
		ESS (OutputStream OS, String ... paths) throws Exception {Zipoutputstream Zos = new Zipoutputstream (OS);
			for (String path:paths) {if (Path.equals ("")) continue;
			Java.io.File File = new Java.io.File (path); if (file.exists ()) {if (File.isdirectory ()) {zipdirectory (Zos, File.getpath (), file.getname () + file.sep
				Arator); else {zipfile (Zos, filE.getpath (), "");
	}} zos.close (); private static void Zipdirectory (Zipoutputstream zos, String dirname, String basepath) throws Exception {File D
		IR = new File (dirname);
			if (dir.exists ()) {File files[] = Dir.listfiles (); if (Files.length > 0) {for (File file:files) {if (File.isdirectory ()) {zipdirectory (Zos, FILE.GETPA
								Th (), BasePath + file.getname (). substring (File.getname (). LastIndexOf (File.separator) + 1)
					+ File.separator);
				else ZipFile (Zos, File.getpath (), basepath);
				} else {zipentry ze = new ZipEntry (basepath);
			Zos.putnextentry (Ze);  }} private static void ZipFile (Zipoutputstream zos, string filename, String basepath) throws Exception {File
		File = new file (filename);
			if (file.exists ()) {FileInputStream FIS = new FileInputStream (filename);
			ZipEntry ze = new ZipEntry (BasePath + file.getname ());
			Zos.putnextentry (Ze); Byte[] Buffer = new byte[8192];
			int count = 0;
			while ((count = fis.read (buffer)) > 0) {zos.write (buffer, 0, count);
		} fis.close (); }
	}
}

Testcompress.java

Import Java.io.FileOutputStream;

Import Com.xx.commmon.Zip;

/**
 * Compressed file test
/public class Testcompress {public

	static void Main (string[] args) {
		//list of files to compress
		String path01 = "e:\\ download \\cn_windows_8_x86_dvd_915414.iso";
		String path02 = "e:\\ppt template _v0.1.potx";
		try {
			FileOutputStream os = new FileOutputStream ("e:\\ test. zip");//output ZIP file stream
			zip.compress (OS, path01);
		} catch (Exception e) {
			e.printstacktrace ();}}}

Testectractzip.java

Import Java.io.File;
Import Java.io.FileInputStream;
Import Java.io.FileOutputStream;
Import java.util.ArrayList;
Import Java.util.zip.ZipEntry;

Import Java.util.zip.ZipInputStream; /** * Decompression test/public class Testectractzip {@SuppressWarnings ({"Unchecked", "static-access"}) public static void
		Main (string[] args) {Testectractzip z = new Testectractzip (); Arraylist<string> a = z.ectract ("C:\\a.zip", "c:\\tmp\\");
		Returns the extracted file list for (String s:a) {System.out.println (s); /** * Decompression * @param szippathfile to extract the file * @param Sdestpath extract to a folder * @return/@SuppressWarnings ("Unchec ked ") public static ArrayList ectract (String szippathfile, String sdestpath) {arraylist<string> allfilename = NE
		W arraylist<string> ();
			try {///First specify the location and filename of the compressed file, establish the FileInputStream object FileInputStream fins = new FileInputStream (szippathfile);
			The fins is passed into the zipinputstream zipinputstream Zins = new Zipinputstream (fins);
			ZipEntry ze = null; byte[] ch = New BYTE[256];
				while (ze = zins.getnextentry ())!= null) {file Zfile = new File (Sdestpath + ze.getname ());
				File Zfile = new file (Sdestpath +file.separator+ ze.getname ());
				File Fpath = new file (Zfile.getparentfile (). GetPath ());
					if (Ze.isdirectory ()) {if (!zfile.exists ()) zfile.mkdirs ();
				Zins.closeentry ();
					else {if (!fpath.exists ()) fpath.mkdirs ();
					FileOutputStream Fouts = new FileOutputStream (zfile);
					int i;
					Allfilename.add (Zfile.getabsolutepath ());
					while ((i = Zins.read (ch))!=-1) fouts.write (CH, 0, I);
					Zins.closeentry ();
				Fouts.close ();
			} fins.close ();
		Zins.close ();
		catch (Exception e) {System.err.println ("Extract error:" + e.getmessage ());
	return allfilename; }
}

NEW: http://blog.csdn.net/xinxin19881112/article/details/46913931