压缩文件

package com.java.charpter15;


 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileNotFoundException;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.util.zip.ZipEntry;

 import java.util.zip.ZipOutputStream;


 public class MyZip {

     private void zip(String zipFileName,File inputFile) throws IOException

     {

         ZipOutputStream out=new ZipOutputStream(new FileOutputStream(inputFile));

         zip(out, inputFile,"");

         System.out.println("压缩中...");

         out.close();

     }

     private void zip(ZipOutputStream out,File f,String base) throws IOException

     {

         if (f.isDirectory()) {

             File[] fl=f.listFiles();

             out.putNextEntry(new ZipEntry(base+"/"));

             base=base.length()==0?"":base+"/";

             for (int i = 0; i < fl.length; i++) {

                 zip(out, f, base+fl[i]);

             }

         }

         else {

             out.putNextEntry(new ZipEntry(base));

             //创建FileInputStream对象

             FileInputStream in=new FileInputStream(f);

             int b;

             System.out.println(base);

             while ((b=in.read())!=-1) {

                 out.write(b);

                 

             }

             in.close();

         }

         

     }

         public static void main(String[] args) {

             MyZip book=new MyZip();

             try {

                 book.zip("E:/hello.zip", new File("D:\\Data"));

                 System.out.println("压缩完成");

             } catch (Exception e) {

                 e.printStackTrace();

             }

             

             

             

             

             

         }

     

     


 }