zipdirectory.java

压缩目录

import java.io.*;
import java.util.zip.*;

public class ZipDirectory {

	/**
	 * @param args
	 */	
	private String zipPath;
	private String zipName;
	private long orgSize;
	private File dir;
	
	public ZipDirectory(String z) throws Exception
	{
		
		dir=new File(z);	
		zipPath=dir.getPath();
		zipName=dir.getParent()+"\\"+dir.getName();//.getName(); //
		
	//	ZipOutputStream zos=new ZipOutputStream(new FileOutputStream(dir));
		
	}
	
	public String getZipPath(){
		return zipPath;
	}
	
	public String getZipName(){
		return zipName;
	}
	
	public void zip() throws Exception{
		ZipOutputStream zos=new ZipOutputStream(new FileOutputStream(zipName+".zip"));
		zip(zos,dir,"");
		System.out.println(zipName+" has finished.\n zipPath: "+zipPath);		
		zos.close();
	}
	
	private void zip(ZipOutputStream zos,File inputFile,String base) throws Exception
	{
			
		
		if(inputFile.isDirectory()){
			File[] files= inputFile.listFiles();	
			zos.putNextEntry(new ZipEntry(base+"\\"));			
			base=base.length()==0?"":base+"\\";
			System.out.println("directory: "+inputFile.getName()+"\n base :"+base);
			for(int i=0;i<files.length;i++){
				zip(zos,files[i],base+files[i].getName());				
			}
		}
		else{
			zos.putNextEntry(new ZipEntry(base));
			FileInputStream fin=new FileInputStream(inputFile);
			System.out.println("File available:"+fin.available()+" \n filename "+inputFile.getName());
			orgSize+=fin.available();
			
			int c;
			while((c=fin.read())!=-1){
				zos.write(c);
				
				
			}
	
			System.out.println("file finish: "+inputFile.getName()+"\n base :"+base);
			fin.close();
		}
		
	}
	
	public long getCompressedSize()
	{
		File f=new File(zipName+".zip");
		return f.length();
	}
	public long getOriginalSize()
	{
		
		return orgSize;
	}
	public float getCompressedRate()
	{
		return (float)this.getCompressedSize()/this.getOriginalSize()*100;
	}
	
	
	public static void main(String[] args) throws Exception {
		// TODO Auto-generated method stub
		ZipDirectory zd=new ZipDirectory("F:\\share\\Soldes");
		System.out.println("compressed:"+zd.getCompressedSize());
		System.out.println("orginal: "+zd.getOriginalSize());
		System.out.println("Rate: "+zd.getCompressedRate()+"%");
	//	System.out.printf("%.2d", (float)100*zd.getCompisedSize()/zd.getOriginalSize());

	}

}