package com.example.compress.zip;

/**

* Created by guolei on 16-8-9.

* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

* | 没有神兽，风骚依旧！ |

* | QQ:1120832563 |

* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

*/

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.FileReader;

import java.io.IOException;

import java.util.Enumeration;

import java.util.zip.Adler32;

import java.util.zip.CheckedInputStream;

import java.util.zip.CheckedOutputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipFile;

import java.util.zip.ZipInputStream;

import java.util.zip.ZipOutputStream;

/**

* 对多个文件进行压缩解压

*/

public class ZipCompress {

private static String[] path = {"./2.txt","./3.txt"};

public static void main(String[] args){

compress();

uncompress();

zipFile();

}

/**

* 压缩

*/

private static void compress() {

FileOutputStream fos;

CheckedOutputStream cos ;

ZipOutputStream zos ;

BufferedOutputStream bos;

try {

fos = new FileOutputStream("./dir/demo.zip");

cos = new CheckedOutputStream(fos,new Adler32());

zos = new ZipOutputStream(cos);

bos = new BufferedOutputStream(zos);

zos.setComment("this is comment message");

for (String s : path) {

BufferedReader bufferedReader = new BufferedReader(new FileReader(s));

zos.putNextEntry(new ZipEntry(s));

int c;

while ((c = bufferedReader.read()) != -1){

bos.write(c);

}

bufferedReader.close();

bos.flush();

}

bos.close();

} catch (Exception e) {

e.printStackTrace();

}

}

private static void uncompress() {

FileInputStream fis;

try {

fis = new FileInputStream("./dir/demo.zip");

CheckedInputStream cis = new CheckedInputStream(fis,new Adler32());

ZipInputStream zis = new ZipInputStream(cis);

BufferedInputStream bis = new BufferedInputStream(zis);

ZipEntry zipENtry ;

while ((zipENtry = zis.getNextEntry()) != null){

System.err.println("read file--->" + zipENtry);

int x;

while ((x = bis.read()) != -1){

System.err.println(x);

}

}

} catch (Exception e) {

e.printStackTrace();

}

}

private static void zipFile() {

try {

ZipFile zipFile = new ZipFile("./dir/demo.zip");

Enumeration e = zipFile.entries();

while (e.hasMoreElements()){

ZipEntry z = (ZipEntry) e.nextElement();

}

} catch (IOException e) {

e.printStackTrace();

}

}

}