import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.Enumeration; import org.apache.tools.zip.ZipEntry; import org.apache.tools.zip.ZipFile; import org.apache.tools.zip.ZipOutputStream; /** * @author yangfei * @since 2013-1-27 */ public class ZipUtilApache { static final int BUFFER = 1024; public static void zip(String destDirPath, String inputPath) throws Exception { File inputFile = new File(inputPath); // 创建压缩文件 File destDir = new File(destDirPath); if (!destDir.exists()) { destDir.mkdir(); } File destFile = new File(destDir + File.separator + inputFile.getName() + ".zip"); // 递归压缩方法 ZipOutputStream out = new ZipOutputStream( new FileOutputStream(destFile)); // 设置压缩编码.设置为GBK后在windows下就不会乱码了,如果要放到Linux或者Unix下就不要设置了 out.setEncoding("GBK"); zip(out, inputFile, ""); System.out.println("zip done"); out.close(); } private static void zip(ZipOutputStream out, File f, String base) throws Exception { System.out.println("Zipping " + f.getName()); // 记录日志,开始压缩 if (f.isDirectory()) { // 如果是文件夹,则获取下面的所有文件 File[] fl = f.listFiles(); if (base.length() > 0) { out.putNextEntry(new ZipEntry(base + "/"));// 此处要将文件写到文件夹中只用在文件名前加"/"再加文件夹名 } base = base.length() == 0 ? "" : base + "/"; for (int i = 0; i < fl.length; i++) { zip(out, fl[i], base + fl[i].getName()); } } else { // 如果是文件,则压缩 out.putNextEntry(new ZipEntry(base)); // 生成下一个压缩节点 FileInputStream in = new FileInputStream(f); // 读取文件内容 int len; byte[] buf = new byte[BUFFER]; while ((len = in.read(buf, 0, BUFFER)) != -1) { out.write(buf, 0, len); // 写入到压缩包 } in.close(); out.closeEntry(); } } /** * 解压缩zip文件 * * @param fileName * 要解压的文件名 包含路径 如:"c:////test.zip" * @param filePath * 解压后存放文件的路径 如:"c:////temp" * @throws Exception */ public static void unZip(String fileName, String destFilePath) throws Exception { ZipFile zipFile = new ZipFile(fileName, "GBK"); // 以“GBK”编码创建zip文件,用来处理winRAR压缩的文件。 Enumeration emu = zipFile.getEntries(); while (emu.hasMoreElements()) { ZipEntry entry = (ZipEntry) emu.nextElement(); if (entry.isDirectory()) { File dir = new File(destFilePath + entry.getName()); if (!dir.exists()) { dir.mkdirs(); } continue; } BufferedInputStream bis = new BufferedInputStream(zipFile .getInputStream(entry)); File file = new File(destFilePath + entry.getName()); File parent = file.getParentFile(); if (parent != null && (!parent.exists())) { parent.mkdirs(); } FileOutputStream fos = new FileOutputStream(file); BufferedOutputStream bos = new BufferedOutputStream(fos, BUFFER); byte[] buf = new byte[BUFFER]; int len = 0; while ((len = bis.read(buf, 0, BUFFER)) != -1) { fos.write(buf, 0, len); } bos.flush(); bos.close(); bis.close(); System.out.println("解压文件:" + file.getName()); } zipFile.close(); } }
原创文章,作者:Maggie-Hunter,如若转载,请注明出处:https://blog.ytso.com/10634.html