package gizAction;
import java.io.*;
import java.util.zip.*;
/*** @author Dana·Li* <p>* 程序实现了ZIP压缩[compression]* <p>* 大致功能包括用了多态，递归等JAVA核心技术，可以对单个文件和任意级联文件夹进行压缩和解压。 需在代码中自定义源输入路径和目标输出路径。* <p>* 在本段代码中，实现的是压缩部分*/
public class ZipCompressing {private int k = 1; // 定义递归次数变量private void zip(String zipFileName, File inputFile) throws Exception {System.out.println("压缩中...");ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));BufferedOutputStream bo = new BufferedOutputStream(out);zip(out, inputFile, inputFile.getName(), bo);bo.close();out.close(); // 输出流关闭System.out.println("压缩完成");}private void zip(ZipOutputStream out, File f, String base,BufferedOutputStream bo) throws Exception { // 方法重载if (f.isDirectory()){File[] fl = f.listFiles();if (fl.length == 0){out.putNextEntry(new ZipEntry(base + "/")); // 创建zip压缩进入点baseSystem.out.println(base + "/");}for (int i = 0; i < fl.length; i++) {zip(out, fl[i], base + "/" + fl[i].getName(), bo); // 递归遍历子文件夹}System.out.println("第" + k + "次递归");k++;} else {out.putNextEntry(new ZipEntry(base)); // 创建zip压缩进入点baseSystem.out.println(base);FileInputStream in = new FileInputStream(f);BufferedInputStream bi = new BufferedInputStream(in);int b;while ((b = bi.read()) != -1) {bo.write(b); // 将字节流写入当前zip目录}bi.close();in.close(); // 输入流关闭}}/*** 测试* @param args*/public static void main(String[] args) {ZipCompressing book = new ZipCompressing();try {book.zip("F:\\ziptest.zip",new File("F:\\ziptest"));} catch (Exception e) {e.printStackTrace();}}
}

package gizAction;
import java.io.BufferedInputStream;
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.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
/*** @author Dana·Li* <p>* 程序实现了ZIP解压[decompression]* <p>* 大致功能包括用了多态，递归等JAVA核心技术，可以对单个文件和任意级联文件夹进行压缩和解压。 需在代码中自定义源输入路径和目标输出路径。* <p>* 在本段代码中，实现的是解压部分；*/
public class zipDecompressing {  public static void main(String[] args) {  // TODO Auto-generated method stub  long startTime=System.currentTimeMillis();  try {  ZipInputStream Zin=new ZipInputStream(new FileInputStream(  "F:\\ziptest.zip"));//输入源zip路径  BufferedInputStream Bin=new BufferedInputStream(Zin);  String Parent="F:\\ziptest\\"; //输出路径（文件夹目录）  File Fout=null;  ZipEntry entry;  try {  while((entry = Zin.getNextEntry())!=null && !entry.isDirectory()){  Fout=new File(Parent,entry.getName());  if(!Fout.exists()){  (new File(Fout.getParent())).mkdirs();  }  FileOutputStream out=new FileOutputStream(Fout);  BufferedOutputStream Bout=new BufferedOutputStream(out);  int b;  while((b=Bin.read())!=-1){  Bout.write(b);  }  Bout.close();  out.close();  System.out.println(Fout+"解压成功");      }  Bin.close();  Zin.close();  } catch (IOException e) {  e.printStackTrace();  }  } catch (FileNotFoundException e) {  e.printStackTrace();  }  long endTime=System.currentTimeMillis();  System.out.println("耗费时间： "+(endTime-startTime)+" ms");  }  }  

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
public class GZIPcompress {public static void main(String[] args) throws IOException {//做准备压缩一个字符文件，注，这里的字符文件要是GBK编码方式的BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream("e:/tmp/source.txt"), "GBK"));//使用GZIPOutputStream包装OutputStream流，使其具体压缩特性，最后会生成test.txt.gz压缩包//并且里面有一个名为test.txt的文件BufferedOutputStream out = new BufferedOutputStream(new GZIPOutputStream(new FileOutputStream("test.txt.gz")));System.out.println("开始写压缩文件...");int c;while ((c = in.read()) != -1) {/* * 注，这里是压缩一个字符文件，前面是以字符流来读的，不能直接存入c，因为c已是Unicode* 码，这样会丢掉信息的（当然本身编码格式就不对），所以这里要以GBK来解后再存入。*/out.write(String.valueOf((char) c).getBytes("GBK"));}in.close();out.close();System.out.println("开始读压缩文件...");//使用GZIPInputStream包装InputStream流，使其具有解压特性BufferedReader in2 = new BufferedReader(new InputStreamReader(new GZIPInputStream(new FileInputStream("test.txt.gz")), "GBK"));String s;//读取压缩文件里的内容while ((s = in2.readLine()) != null) {System.out.println(s);}in2.close();}
}