使用org.apache.tools.zip实现zip压缩和解压

import java.io.*; import org.apache.tools.zip.*; import java.util.Enumeration; 

**本文转载；使用时校验代码

/**
*功能:zip压缩、解压(支持中文文件名)
*说明:本程序通过使用Apache Ant里提供的zip工具org.apache.tools.zip实现了zip压缩和解压功能.
* 解决了由于java.util.zip包不支持汉字的问题。
* 使用java.util.zip包时,当zip文件中有名字为中文的文件时,
* 就会出现异常:”Exception in thread “main ” java.lang.IllegalArgumentException
* at java.util.zip.ZipInputStream.getUTF8String(ZipInputStream.java:285)
*注意:
* 1、使用时把ant.jar放到classpath中,程序中使用import org.apache.tools.zip.*;
* 2、Apache Ant 下载地址:[url]http://ant.apache.org/[/url]
* 3、Ant ZIP API:[url]http://www.jajakarta.org/ant/ant-1.6.1/docs/mix/manual/api/org/apache/tools/zip/[/url]
* 4、本程序使用Ant 1.7.1 中的ant.jar
*
*仅供编程学习参考.
*
*@author Winty
*@date 2008-8-3
*@Usage:
* 压缩:java AntZip -zip “directoryName”
* 解压:java AntZip -unzip “fileName.zip”
*/

public class AntZip{     private ZipFile         zipFile;     private ZipOutputStream zipOut;     //压缩Zip     private ZipEntry        zipEntry;     private static int      bufSize;    //size of bytes     private byte[]          buf;     private int             readedBytes;     public AntZip(){         this(512);     }     public AntZip(int bufSize){         this.bufSize = bufSize;         this.buf = new byte[this.bufSize];     }     //压缩文件夹内的文件     public void doZip(String zipDirectory){//zipDirectoryPath:需要压缩的文件夹名         File file;         File zipDir;         zipDir = new File(zipDirectory);         String zipFileName = zipDir.getName() + ".zip";//压缩后生成的zip文件名         try{             this.zipOut = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFileName)));             handleDir(zipDir , this.zipOut);             this.zipOut.close();         }catch(IOException ioe){             ioe.printStackTrace();         }     }     //由doZip调用,递归完成目录文件读取     private void handleDir(File dir , ZipOutputStream zipOut)throws IOException{         FileInputStream fileIn;         File[] files;         files = dir.listFiles();         if(files.length == 0){//如果目录为空,则单独创建之.             //ZipEntry的isDirectory()方法中,目录以"/"结尾.             this.zipOut.putNextEntry(new ZipEntry(dir.toString() + "/"));             this.zipOut.closeEntry();         }         else{//如果目录不为空,则分别处理目录和文件.             for(File fileName : files){                 //System.out.println(fileName);                 if(fileName.isDirectory()){                     handleDir(fileName , this.zipOut);                 }                 else{                     fileIn = new FileInputStream(fileName);                     this.zipOut.putNextEntry(new ZipEntry(fileName.toString()));                     while((this.readedBytes = fileIn.read(this.buf))>0){                         this.zipOut.write(this.buf , 0 , this.readedBytes);                     }                     this.zipOut.closeEntry();                 }             }         }     }     //解压指定zip文件     public void unZip(String unZipfileName){//unZipfileName需要解压的zip文件名         FileOutputStream fileOut;         File file;         InputStream inputStream;         try{             this.zipFile = new ZipFile(unZipfileName);             for(Enumeration entries = this.zipFile.getEntries(); entries.hasMoreElements();){                 ZipEntry entry = (ZipEntry)entries.nextElement();                 file = new File(entry.getName());                 if(entry.isDirectory()){                     file.mkdirs();                 }                 else{                     //如果指定文件的目录不存在,则创建之.                     File parent = file.getParentFile();                     if(!parent.exists()){                         parent.mkdirs();                     }                     inputStream = zipFile.getInputStream(entry);                     fileOut = new FileOutputStream(file);                     while(( this.readedBytes = inputStream.read(this.buf) ) > 0){                         fileOut.write(this.buf , 0 , this.readedBytes );                     }                     fileOut.close();                     inputStream.close();                 }                }             this.zipFile.close();         }catch(IOException ioe){             ioe.printStackTrace();         }     }     //设置缓冲区大小     public void setBufSize(int bufSize){         this.bufSize = bufSize;     }     //测试AntZip类     public static void main(String[] args)throws Exception{         if(args.length==2){             String name = args[1];             AntZip zip = new AntZip();             if(args[0].equals("-zip"))                 zip.doZip(name);             else if(args[0].equals("-unzip"))                 zip.unZip(name);         }         else{             System.out.println("Usage:");             System.out.println("压缩:java AntZip -zip directoryName");             System.out.println("解压:java AntZip -unzip fileName.zip");             throw new Exception("Arguments error!");         }     } }