- package com.topsoft.websites.utils;
- import java.io.*;
- import java.util.logging.Logger;
- import java.util.zip.*;
- /**
- * Created by sunyameng on 14-3-10.
- */
- public class ZipUtil {
- private final static Logger logger = Logger.getLogger(ZipUtil.class.getName());
- private static final int BUFFER = 1024 * 10;
- /**
- * 将指定目录压缩到和该目录同名的zip文件,自定义压缩路径
- *
- * @param sourceFilePath 目标文件路径
- * @param zipFilePath 指定zip文件路径
- * @return
- */
- public static boolean zip(String sourceFilePath, String zipFilePath,String zipFileName) {
- boolean result = false;
- File source = new File(sourceFilePath);
- if (!source.exists()) {
- logger.info(sourceFilePath + " doesn't exist.");
- return result;
- }
- if (!source.isDirectory()) {
- logger.info(sourceFilePath + " is not a directory.");
- return result;
- }
- File zipFile = new File(zipFilePath + File.separator + zipFileName + ".zip");
- if (zipFile.exists()) {
- logger.info(zipFile.getName() + " is already exist.");
- return result;
- } else {
- if (!zipFile.getParentFile().exists()) {
- if (!zipFile.getParentFile().mkdirs()) {
- logger.info("cann't create file " + zipFileName);
- return result;
- }
- }
- }
- logger.info("creating zip file...");
- FileOutputStream dest = null;
- ZipOutputStream out = null;
- try {
- dest = new FileOutputStream(zipFile);
- CheckedOutputStream checksum = new CheckedOutputStream(dest, new Adler32());
- out = new ZipOutputStream(new BufferedOutputStream(checksum));
- out.setMethod(ZipOutputStream.DEFLATED);
- compress(source, out, source.getName());
- result = true;
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } finally {
- if (out != null) {
- try {
- out.closeEntry();
- } catch (IOException e) {
- e.printStackTrace();
- }
- try {
- out.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- if (result) {
- logger.info("done.");
- } else {
- logger.info("fail.");
- }
- return result;
- }
- private static void compress(File file, ZipOutputStream out, String mainFileName) {
- int index = file.getAbsolutePath().indexOf(mainFileName);
- String entryName = file.getAbsolutePath().substring(index);
- //System.out.println(entryName);
- if (file.isFile()) {
- FileInputStream fi = null;
- BufferedInputStream origin = null;
- try {
- fi = new FileInputStream(file);
- origin = new BufferedInputStream(fi, BUFFER);
- ZipEntry entry = new ZipEntry(entryName);
- out.putNextEntry(entry);
- byte[] data = new byte[BUFFER];
- int count;
- while ((count = origin.read(data, 0, BUFFER)) != -1) {
- out.write(data, 0, count);
- }
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- } finally {
- if (origin != null) {
- try {
- origin.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- } else if (file.isDirectory()) {
- try {
- out.putNextEntry(new ZipEntry(entryName+File.separator));
- } catch (IOException e) {
- e.printStackTrace();
- }
- File[] fs = file.listFiles();
- if (fs != null && fs.length > 0) {
- for (File f : fs) {
- compress(f, out, mainFileName);
- }
- }
- }
- }
- /**
- * 将zip文件解压到指定的目录,该zip文件必须是使用该类的zip方法压缩的文件
- *
- * @param zipFile 要解压的zip文件
- * @param destPath 指定解压到的目录
- * @return
- */
- public static boolean unzip(File zipFile, String destPath) {
- boolean result = false;
- if (!zipFile.exists()) {
- logger.info(zipFile.getName() + " doesn't exist.");
- return result;
- }
- File target = new File(destPath);
- if (!target.exists()) {
- if (!target.mkdirs()) {
- logger.info("cann't create file " + target.getName());
- return result;
- }
- }
- String mainFileName = zipFile.getName().replace(".zip", "");
- File targetFile = new File(destPath + File.separator + mainFileName);
- if (targetFile.exists()) {
- logger.info(targetFile.getName() + " already exist.");
- return result;
- }
- ZipInputStream zis = null;
- logger.info("start unzip file ...");
- try {
- FileInputStream fis = new FileInputStream(zipFile);
- CheckedInputStream checksum = new CheckedInputStream(fis, new Adler32());
- zis = new ZipInputStream(new BufferedInputStream(checksum));
- ZipEntry entry;
- while ((entry = zis.getNextEntry()) != null) {
- int count;
- byte data[] = new byte[BUFFER];
- String entryName = entry.getName();
- //logger.info(entryName);
- String newEntryName = destPath + File.separator + entryName;
- newEntryName=newEntryName.replaceAll("\\\\", "/");
- File f = new File(newEntryName);
- if(newEntryName.endsWith("/")){
- if(!f.exists()){
- if(!f.mkdirs()) {
- throw new RuntimeException("can't create directory " + f.getName());
- }
- }
- }else{
- File temp=f.getParentFile();
- if (!temp.exists()) {
- if (!temp.mkdirs()) {
- throw new RuntimeException("create file " + temp.getName() + " fail");
- }
- }
- FileOutputStream fos = new FileOutputStream(f);
- BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);
- while ((count = zis.read(data, 0, BUFFER)) != -1) {
- dest.write(data, 0, count);
- }
- dest.flush();
- dest.close();
- }
- }
- result = true;
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- } finally {
- if (zis != null) {
- try {
- zis.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- if (result) {
- logger.info("done.");
- } else {
- logger.info("fail.");
- }
- return result;
- }
- public static void main(String[] args) throws IOException {
- // String path="D:\\temp\\B";
- // ZipUtil.zip(path,"d:/temp/c","anhuigs123");
- String zipfile ="D:\\temp\\c\\B.zip";
- File zipFile = new File(zipfile);
- String output="D:\\temp\\c";
- ZipUtil.unzip(zipFile, output);
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/2204201512361.html
来源: http://www.codesnippet.cn/detail/2204201512361.html