java 压缩目录为 zip

java 压缩目录为 zip

java.util.zip.ZipEntry
java.util.zip.ZipOutputStream

如果要解决中文文件名问题，用到ant.jar

这两个类。

ZipOutputStream.putNextEntry(ZipEntry);就可以了，然后ZipOutputStream.wirte();就得了。

package  net.blogjava.chenlb.zip;

import  java.io.BufferedOutputStream;
import  java.io.File;
import  java.io.FileInputStream;
import  java.io.FileNotFoundException;
import  java.io.FileOutputStream;
import  java.io.IOException;
import  java.io.OutputStream;
// import java.util.zip.ZipEntry;
// import java.util.zip.ZipOutputStream;
// 用ant.jar的zip.*可以解决中文文件名问题
import  org.apache.tools.zip.ZipEntry;
import  org.apache.tools.zip.ZipOutputStream;

/**
 * 压缩文件.
 * 2007-10-17 下午11:19:50
 *  @author  chenlb
  */
public   class  RecursiveZip {

    
     public   static   void  main(String[] args) {

        RecursiveZip recursiveZip  =   new  RecursiveZip();
        System.out.println( " ====开始==== " );
         try  {
            OutputStream os  =   new  FileOutputStream( " e:/doc-recursive.zip " );
            BufferedOutputStream bs  =   new  BufferedOutputStream(os);
            ZipOutputStream zo  =   new  ZipOutputStream(bs);
            
             // recursiveZip.zip("e:/recursive-zip/中文文件名.txt", new File("e:/recursive-zip"), zo, true, true);
            recursiveZip.zip( " e:/recursive-zip " ,  new  File( " e:/recursive-zip " ), zo,  true ,  true );
            
            zo.closeEntry();
            zo.close();
        }  catch  (FileNotFoundException e) {
            e.printStackTrace();
        }  catch  (IOException e) {
            e.printStackTrace();
        }
        System.out.println( " ====完成==== " );
    }

     /**
     *  @param  path 要压缩的路径, 可以是目录, 也可以是文件.
     *  @param  basePath 如果path是目录,它一般为new File(path), 作用是:使输出的zip文件以此目录为根目录, 如果为null它只压缩文件, 不解压目录.
     *  @param  zo 压缩输出流
     *  @param  isRecursive 是否递归
     *  @param  isOutBlankDir 是否输出空目录, 要使输出空目录为true,同时baseFile不为null.
     *  @throws  IOException
      */
     public   void  zip(String path, File basePath, ZipOutputStream zo,  boolean  isRecursive,  boolean  isOutBlankDir)  throws  IOException {
        
        File inFile  =   new  File(path);

        File[] files  =   new  File[ 0 ];
         if (inFile.isDirectory()) {     // 是目录
            files  =  inFile.listFiles();
        }  else   if (inFile.isFile()) {     // 是文件
            files  =   new  File[ 1 ];
            files[ 0 ]  =  inFile;
        }
         byte [] buf  =   new   byte [ 1024 ];
         int  len;
         // System.out.println("baseFile: "+baseFile.getPath());
         for ( int  i = 0 ; i < files.length; i ++ ) {
            String pathName  =   "" ;
             if (basePath  !=   null ) {
                 if (basePath.isDirectory()) {
                    pathName  =  files[i].getPath().substring(basePath.getPath().length() + 1 );
                }  else  { // 文件
                    pathName  =  files[i].getPath().substring(basePath.getParent().length() + 1 );
                }
            }  else  {
                pathName  =  files[i].getName();
            }
            System.out.println(pathName);
             if (files[i].isDirectory()) {
                 if (isOutBlankDir  &&  basePath  !=   null ) {    
                    zo.putNextEntry( new  ZipEntry(pathName + " / " ));     // 可以使空目录也放进去
                }
                 if (isRecursive) {     // 递归
                    zip(files[i].getPath(), basePath, zo, isRecursive, isOutBlankDir);
                }
            }  else  {
                FileInputStream fin  =   new  FileInputStream(files[i]);
                zo.putNextEntry( new  ZipEntry(pathName));
                 while ((len = fin.read(buf)) > 0 ) {
                    zo.write(buf, 0 ,len);
                }
                fin.close();
            }
        }
    }
}