[原创]java写的zip文件的解压缩

来源: BlogBus 原始链接: http://henterji.blogbus.com:80/logs/2005/12/2034091.html 存档链接: https://web.archive.org/web/20061115074922id_/http://henterji.blogbus.com:80/logs/2005/12/2034091.html

henterji's blog << [原创]基于java的关于足彩胜负彩的程序 | 首 页 | [原创]java泛型的一种用法 >> 2005-12-19 [原创]java写的zip文件的解压缩 TAG： Java import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.Enumeration; import java.util.SortedSet; import java.util.TreeSet; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; public class Unzip { protected ZipFile zippy; protected byte[] b; public static void main(String[] args) { Unzip u = new Unzip(); u.unZip("tank.zip"); } Unzip() { b = new byte[8092]; } protected SortedSet dirsMade; public void unZip(String fileName) { dirsMade = new TreeSet (); try { zippy = new ZipFile(fileName); Enumeration all = zippy.entries(); while (all.hasMoreElements()) { getFile((ZipEntry) all.nextElement()); } } catch (IOException err) { System.err.println("IO Error: " + err); return; } } protected boolean warnedMkDir = false; protected void getFile(ZipEntry e) throws IOException { String zipName = e.getName(); if (zipName.startsWith("/")) { if (!warnedMkDir) System.out.println("Ignoring absolute paths"); warnedMkDir = true; zipName = zipName.substring(1); } if (zipName.endsWith("/")) { return; } int ix = zipName.lastIndexOf('/'); if (ix> 0) { String dirName = zipName.substring(0, ix); if (!dirsMade.contains(dirName)) { File d = new File(dirName); if (!(d.exists()&& d.isDirectory())) { if (!d.mkdirs()) { System.err.println("Warning: unable to mkdir "

• dirName); } dirsMade.add(dirName); } } } FileOutputStream os = new FileOutputStream(zipName); InputStream is = zippy.getInputStream(e); int n = 0; while ((n = is.read(b))> 0) { os.write(b, 0, n); } is.close(); os.close(); } } henterji @ 16:25:14 | 引用 0 | 编辑 评论 发表评论