//文件名:myZip.java(本文来源于图老师网站,更多请访问http://m.tulaoshi.com/bianchengyuyan/)
import java.io.*;
import java.util.*;
import java.util.zip.*;
/**
* pTitle: 文件压缩和解压/p
* pDescription: 使用ZipInputStream和ZipOutputStream对文件
* 和目录进行压缩和解压处理/p
* pCopyright: Copyright (c) 2003/p
* pFilename: myZip.java/p
* @version 1.0
*/
public class myZip{
/**
*br方法说明:实现文件的压缩处理
*br输入参数:String[] fs 压缩的文件数组
*br返回类型:
*/
public void ZipFiles(String[] fs){
try{
String fileName = fs[0];
FileOutputStream f =
new FileOutputStream(fileName+".zip");
//使用输出流检查
CheckedOutputStream cs =
new CheckedOutputStream(f,new Adler32());
//声明输出zip流
ZipOutputStream out =
new ZipOutputStream(new BufferedOutputStream(cs));
//写一个注释
out.setComment("A test of Java Zipping");
//对多文件进行压缩
for(int i=1;ifs.length;i++){
System.out.println("Write file "+fs[i]);
BufferedReader in =
new BufferedReader(
new FileReader(fs[i]));
out.putNextEntry(new ZipEntry(fs[i]));
int c;
while((c=in.read())!=-1)
out.write(c);
in.close();
}
//关闭输出流
out.close();
System.out.println("Checksum::"+cs.getChecksum().getValue());
}catch(Exception e){
System.err.println(e);
}
}
/**
*br方法说明:解压缩Zip文件
*br输入参数:String fileName 解压zip文件名
*br返回类型:
*/
public void unZipFile(String fileName){
try{
System.out.println("读取ZIP文件........");
//文件输入流
FileInputStream fi =
new FileInputStream(fileName+".zip");
//输入流检查
CheckedInputStream csi = new CheckedInputStream(fi,new Adler32());
//输入流压缩
ZipInputStream in2 =
new ZipInputStream(
new BufferedInputStream(csi));
ZipEntry ze;
System.out.println("Checksum::"+csi.getChecksum().getValue());
//解压全部文件
while((ze = in2.getNextEntry())!=null){
System.out.println("Reading file "+ze);
int x;
while((x= in2.read())!=-1)
//这里是写文件,write是以byte方式输出。
System.out.write(x);
}
in2.close();
}catch(Exception e){
System.err.println(e);
}
}
/**
*br方法说明:读取Zip文件列表
*br输入参数:String fileName zip文件名
*br返回类型:Vector 文件列表
*/
public Vector listFile(String fileName){
try{
String[] aRst=null;
Vector vTemp = new Vector();
//zip文件对象
ZipFile zf = new ZipFile(fileName+".zip");
Enumeration e = zf.entries();
while(e.hasMoreElements()){
ZipEntry ze2 = (ZipEntry)e.nextElement();
System.out.println("File: "+ze2);
vTemp.addElement(ze2);
}
return vTemp;
}catch(Exception e){
System.err.println(e);
return null;
}
}
/**
*br方法说明:主方法
*br输入参数:
*br返回类型:
*/
public static void main(String[] args){
try{
String fileName = args[0];
myZip myZip = new myZip();
myZip.ZipFiles(args);
myZip.unZipFile(fileName);
Vector dd = myZip.listFile(fileName);
System.out.println("File List: "+dd);
}catch(Exception e){
e.printStackTrace();
}
}
}