java zip解压缩 博客分类： Java zip解压缩compressZipArchiveEntryjava解压缩zip

java 中如何进行zip包的解压缩呢?

有两种方式:

(1)使用jdk 自带的zip工具

(2)使用apache旗下的commons-compress

我下面要讲解的zip解压缩助手使用的是apache旗下的commons-compress.

工具运行界面如下:

 核心代码:

解压:

/***
	 * 解压zip
	 * 
	 * @param zipFile
	 * @param decompressLoc
	 *            :解压之后的文件所在目录
	 * @throws ArchiveException
	 * @throws IOException
	 */
	public static boolean deCompressRecursion(String zipFile,
			File decompressLoc, String charSet) throws ArchiveException,
			IOException {
		FileInputStream fin = new FileInputStream(zipFile);
		ArchiveInputStream archIns = new ArchiveStreamFactory()
				.createArchiveInputStream(ArchiveStreamFactory.ZIP, fin);
		ZipArchiveInputStream zipIn = (ZipArchiveInputStream) archIns;
		boolean isSuccess = deCompressRecursion(zipIn, decompressLoc, charSet);
		zipIn.close();
		return isSuccess;
	}
/***
	 * 递归解压缩.
	 * 
	 * @param zipIn
	 * @param decompressLoc
	 * @return
	 * @throws IOException
	 */
	private static boolean deCompressRecursion(ZipArchiveInputStream zipIn,
			File decompressLoc, String charset) throws IOException {
		ZipArchiveEntry zipEntry;
		if (ValueWidget.isNullOrEmpty(charset)) {
			charset = SystemHWUtil.CHARSET_UTF;
		}
		while (!ValueWidget.isNullOrEmpty(zipEntry = zipIn.getNextZipEntry())) {
			byte[] rawName = zipEntry.getRawName();
			String fileName = new String(rawName, charset);
			// System.out.println(fileName);
			if (zipEntry.isDirectory()) {// 是目录
				File newFolder = new File(decompressLoc, fileName);// 若子目录不存在，则创建之
				System.out.println(newFolder.getAbsolutePath());
				if (!newFolder.exists()) {
					newFolder.mkdir();
				}
				// deCompressRecursion(zipIn, decompressLoc,charset);
			} else {// 是普通文件
				File singFile = new File(decompressLoc, fileName);
				System.out.println(singFile.getAbsolutePath());
				if (singFile.exists()) {// 若解压后的文件已经存在，则直接退出
					GUIUtil23.warningDialog("File \""
							+ singFile.getAbsolutePath() + "\" does  exist.");
					return false;
				}
				/**
				 * 以下四行代码是后来添加的，为了解决父目录不存在的问题
				 */
				File fatherFolder = singFile.getParentFile();
				if (!fatherFolder.exists()) {
					fatherFolder.mkdirs();
				}
				FileUtils.writeIn2Output(zipIn, new FileOutputStream(singFile),
						true, false);
			}
		}
		return true;
	}

 

压缩:

/***
	 * 压缩文件.
	 * 
	 * @param zipFile
	 * @param folderPaths
	 * @return
	 * @throws ArchiveException
	 * @throws IOException
	 */
	public static boolean compressZipRecursion(String zipFile,
			String folderPaths) throws ArchiveException, IOException {
		FileOutputStream fou = new FileOutputStream(zipFile);
		ArchiveOutputStream archOuts = new ArchiveStreamFactory()
				.createArchiveOutputStream(ArchiveStreamFactory.ZIP, fou);
		if (archOuts instanceof ZipArchiveOutputStream) {
			ZipArchiveOutputStream zipOut = (ZipArchiveOutputStream) archOuts;
			List<ZipArchiveEntry> zipEntrys = getZipFileListRecursion(new File(
					folderPaths), null);
			for (int i = 0; i < zipEntrys.size(); i++) {
				ZipArchiveEntry zipEntry2 = zipEntrys.get(i);
				zipOut.putArchiveEntry(zipEntry2);
				File file = new File(folderPaths, zipEntry2.getName());
				if (!file.exists()) {
					return false;
				}
				if (!file.isDirectory()) {
					FileInputStream fin = new FileInputStream(file);
					// 不要关闭zipOut，关闭之前要执行closeArchiveEntry()
					FileUtils.writeIn2Output(fin, zipOut, false, true);
				}
			}
			closeZip(zipOut, true);

		}
		return true;
	}
/***
	 * 压缩之后的收尾操作.
	 * 
	 * @param zipOut
	 * @throws IOException
	 */
	private static void closeZip(ZipArchiveOutputStream zipOut,
			boolean iscloseArchiveEntry) throws IOException {
		if (iscloseArchiveEntry) {
			zipOut.closeArchiveEntry();// it is necessary
		}
		zipOut.flush();
		zipOut.finish();
		zipOut.close();
	}

 上述代码见类:com.common.util.CompressZipUtil

项目名:zip_mgmt

项目源代码见附件:zip_mgmt.zip

项目使用maven 构建

IDE:eclipse

依赖的jar包:(1)io0007-find_progess-0.0.8-SNAPSHOT.jar

(2)is_chinese

学习笔记见附件java zip压缩.zip

 

 

参考:http://m.blog.csdn.net/blog/buyaore_wo/7047343

http://www.cnblogs.com/un4sure/archive/2011/09/27/2193298.html,

http://hw1287789687.iteye.com/blog/1976309