java zip 工具类
2024-08-30 12:30:35
原文：http://www.open-open.com/code/view/1430906539866
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);
}
}
最新文章
- Apache限制某个目录下的PHP文件没有执行权限
- PIXHAWK DIY LED扩展板
- Android first --- 网络编程
- Spring MVC Rest 支持CORS
- 谷歌（GDG）：智能技术在物联网及移动互联网中的最新应用讲座
- Linux and the Unix Philosophy (Linux/Unix设计思想)
- 面向对象之prototype，__proto__
- HDU-5536 Chip Factory （字典树）
- Pintos-斯坦福大学操作系统Project详解-Project1
- JS~对img标签进行优化，使用onerror进行默认图像显示
- .net core mvc 区域路由设置（配置）
- media 标签解释
- Core 读取配置文件
- [转帖]GitHub上整理的一些工具
- 设计模式---对象创建模式之抽象工厂模式（Abstract Factory）
- Spark Worker启动Driver和Executor工作流程
- bootstrap-table 的 toolbar 能去掉显示吗?
- RocketMq 学习记录
- 单元测试工具Numega BoundsChecker
- CentOS6.4 下安装 Apache2.4.16