java解压zip压缩包

package com.spring.mvc.zip;

import java.io.File;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.Enumeration;

import java.util.zip.ZipEntry;

import org.apache.tools.zip.ZipFile;

public class zip {

/**

* 解压到指定目录

* @param zipPath

* @param descDir

* @author isea533

*/

public static void unZipFiles(String zipPath,String descDir)throws Exception{

unZipFiles(new File(zipPath), descDir);

}

/**

* 解压文件到指定目录

* @param zipFile

* @param descDir

* @author isea533

*/

@SuppressWarnings("rawtypes")

public static void unZipFiles(File zipFile,String descDir)throws Exception{

File pathFile = new File(descDir);

if(!pathFile.exists()){

pathFile.mkdirs();

}

ZipFile zip = new ZipFile(zipFile,"gbk");

for(Enumeration entries = zip.getEntries();entries.hasMoreElements();){

ZipEntry entry = (ZipEntry)entries.nextElement();

String zipEntryName = entry.getName();

InputStream in = zip.getInputStream((org.apache.tools.zip.ZipEntry) entry);

String outPath = (descDir+zipEntryName).replaceAll("\\*", "/");;

//判断路径是否存在,不存在则创建文件路径

File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));

if(!file.exists()){

file.mkdirs();

}

//判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压

if(new File(outPath).isDirectory()){

continue;

}

//输出文件路径信息

System.out.println(outPath);

OutputStream out = new FileOutputStream(outPath);

byte[] buf1 = new byte[1024];

int len;

while((len=in.read(buf1))>0){

out.write(buf1,0,len);

}

in.close();

out.close();

}

System.out.println("******************解压完毕********************");

}

public static void main(String[] args) throws Exception {

/**

* 解压文件

*/

File zipFile = new File("d://zhouzhiwei.zip"); //压缩包地址

String path = "d://zipfile/"; //被解压到这个路径

unZipFiles(zipFile, path);

}

}