原文地址：http://zhangyongbo.iteye.com/blog/1749439

import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.Enumeration; import org.apache.tools.zip.ZipEntry; import org.apache.tools.zip.ZipFile; /*** 解壓Zip文件工具類* @author zhangyongbo**/ public class ZipUtil {private static final int buffer = 2048;public static void main(String[] args){unZip("E:\\java\\Android\\aaa.zip");}/*** 解壓Zip文件* @param path 文件目錄*/public static void unZip(String path){int count = -1;String savepath = "";File file = null;InputStream is = null;FileOutputStream fos = null;BufferedOutputStream bos = null;savepath = path.substring(0, path.lastIndexOf(".")) + File.separator; //保存解壓文件目錄new File(savepath).mkdir(); //創(chuàng)建保存目錄ZipFile zipFile = null;try{zipFile = new ZipFile(path,"gbk"); //解決中文亂碼問題Enumeration<?> entries = zipFile.getEntries();while(entries.hasMoreElements()){byte buf[] = new byte[buffer];ZipEntry entry = (ZipEntry)entries.nextElement();String filename = entry.getName();boolean ismkdir = false;if(filename.lastIndexOf("/") != -1){ //檢查此文件是否帶有文件夾ismkdir = true;}filename = savepath + filename;if(entry.isDirectory()){ //如果是文件夾先創(chuàng)建file = new File(filename);file.mkdirs();continue;}file = new File(filename);if(!file.exists()){ //如果是目錄先創(chuàng)建if(ismkdir){new File(filename.substring(0, filename.lastIndexOf("/"))).mkdirs(); //目錄先創(chuàng)建 }}file.createNewFile(); //創(chuàng)建文件 is = zipFile.getInputStream(entry);fos = new FileOutputStream(file);bos = new BufferedOutputStream(fos, buffer);while((count = is.read(buf)) > -1){bos.write(buf, 0, count);}bos.flush();bos.close();fos.close();is.close();}zipFile.close();}catch(IOException ioe){ioe.printStackTrace();}finally{try{if(bos != null){bos.close();}if(fos != null) {fos.close();}if(is != null){is.close();}if(zipFile != null){zipFile.close();}}catch(Exception e) {e.printStackTrace();}}} }

指定目錄重新的方法如下：

/*** 解壓Zip文件* @param path 文件目錄*/public static void unZipNew(String path,String savepath){int count = -1;File file = null;InputStream is = null;FileOutputStream fos = null;BufferedOutputStream bos = null;ZipFile zipFile = null;try{zipFile = new ZipFile(path,"gbk"); //解決中文亂碼問題Enumeration<?> entries = zipFile.getEntries();while(entries.hasMoreElements()){byte buf[] = new byte[buffer];ZipEntry entry = (ZipEntry)entries.nextElement();String filename = entry.getName();boolean ismkdir = false;if(filename.lastIndexOf("/") != -1){ //檢查此文件是否帶有文件夾ismkdir = true;}filename = savepath + filename;if(entry.isDirectory()){ //如果是文件夾先創(chuàng)建file = new File(filename);file.mkdirs();continue;}file = new File(filename);if(!file.exists()){ //如果是目錄先創(chuàng)建if(ismkdir){new File(filename.substring(0, filename.lastIndexOf("/"))).mkdirs(); //目錄先創(chuàng)建 }}file.createNewFile(); //創(chuàng)建文件 is = zipFile.getInputStream(entry);fos = new FileOutputStream(file);bos = new BufferedOutputStream(fos, buffer);while((count = is.read(buf)) > -1){bos.write(buf, 0, count);}bos.flush();bos.close();fos.close();is.close();}zipFile.close();}catch(IOException ioe){ioe.printStackTrace();}finally{try{if(bos != null){bos.close();}if(fos != null) {fos.close();}if(is != null){is.close();}if(zipFile != null){zipFile.close();}}catch(Exception e) {e.printStackTrace();}}}

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轉(zhuǎn)載于:https://www.cnblogs.com/davidwang456/p/4841209.html

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