Java Extract Files

Need Import Org.apache.tools.zip.ZipEntry;

import Org.apache.tools.zip.ZipFile;

Unzip the file

Ant.jar's http://download.csdn.net/detail/qq490691606/7935909

Configuration in Maven

 <            Dependency> <groupId>com.sun</groupId> <artifactId>tools</artifactId> <version>1.4.2</version> <scope>system</scope> <systempath>${j ava.home}/. /lib/tools.jar</systempath> </dependency> 

public class Unziputil {private static void CreateFile (String path) {file Dir = new File (path);        if (!dir.exists ()) {Dir.mkdir (); }}//Get file name private static String GetFileName (string name) {return name.substring (0,name.lastindexof (".")    );  public static void Unzip (string zipfilepath, String unzipfilepath) throws Exception {//Create file object to unzip        File = new file (Zipfilepath);        Create a zip file object ZipFile zipfile = new ZipFile (file);        Create this zip file to extract the directory file Unzipfile = new file (Unzipfilepath + "/" + GetFileName (File.getname ()));        Extract file does not exist then create if (!unzipfile.exists ()) unzipfile.mkdirs ();        Get the ZIP File entry Enumeration Object Enumeration Zipenum = Zipfile.getentries ();        Defines the input and output stream object InputStream input = null;        OutputStream output = null;        Defines the object zipentry entry = null; Loop read entry while (Zipenum.hasmoreelements ()) {//get current Entry Entry = (ZipEntry) zipenum.nextelement ();            String entryName = new String (Entry.getname ());            Use/Separate entry name String names[] = Entryname.split ("\\/");            int length = Names.length;            String path = Unzipfile.getabsolutepath (); for (int v = 0; v < length; v++) {if (v < length-1) {//directory before last directory path + = "/                    "+ Names[v] +"/";                CreateFile (path); } else {///The Last if (Entryname.endswith ("/"))//directory, create folder CreateFile (unzipfile                    . GetAbsolutePath () + "/" + entryName);                        else {//for file, output to file input = Zipfile.getinputstream (entry);                        Output = new FileOutputStream (New File (Unzipfile.getabsolutepath () + "/" + EntryName));                        byte[] buffer = new byte[1024 * 8];                        int readlen = 0; while ((Readlen = input.read (buffer, 0, 1024 * 8))! =-1) output.write (buffer, 0, Readlen);                        Close flow input.close ();                        Writes the cache to the hard disk Output.flush ();                    Output.close (); }                }            }        }    }}

Java Extract Files