127 lines
4.2 KiB
Java
127 lines
4.2 KiB
Java
package ink.wgink.util;
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import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
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import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream;
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import org.apache.commons.io.FileUtils;
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import org.apache.commons.io.IOUtils;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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/**
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* @ClassName: ZipUtil
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* @Description: 压缩
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* @Author: WangGeng
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* @Date: 2019/4/28 11:24 AM
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* @Version: 1.0
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**/
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public class ZipUtil {
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/**
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* 压缩文件
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*
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* @param inputFileName
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* @param zipFileName
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* @return
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* @throws Exception
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*/
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public static Boolean zip(String inputFileName, String zipFileName) throws Exception {
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zip(zipFileName, new File(inputFileName));
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return true;
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}
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private static void zip(String zipFileName, File inputFile) throws Exception {
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ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));
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zip(out, inputFile, "");
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out.flush();
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out.close();
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}
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private static void zip(ZipOutputStream out, File f, String base) throws Exception {
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if (f.isDirectory()) {
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File[] fl = f.listFiles();
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out.putNextEntry(new ZipEntry(base + "/"));
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base = base.length() == 0 ? "" : base + "/";
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for (int i = 0; i < fl.length; i++) {
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zip(out, fl[i], base + fl[i].getName());
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}
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} else {
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out.putNextEntry(new ZipEntry(base));
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FileInputStream in = new FileInputStream(f);
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int b;
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while ((b = in.read()) != -1) {
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out.write(b);
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}
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in.close();
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}
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}
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/**
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* 解压 zip 文件
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*
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* @param zipFile zip 压缩文件
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* @param destDir zip 压缩文件解压后保存的目录
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* @param encoding zip 文件的编码
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* @return 返回 zip 压缩文件里的文件名的 list
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* @throws IOException
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*/
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public static List<String> unZip(File zipFile, String destDir, String encoding) throws IOException {
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// 如果 destDir 为 null, 空字符串, 或者全是空格, 则解压到压缩文件所在目录
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if (destDir == null || destDir.length() == 0) {
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destDir = zipFile.getParent();
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}
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destDir = destDir.endsWith(File.separator) ? destDir : destDir + File.separator;
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ZipArchiveInputStream is = null;
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List<String> fileNames = new ArrayList<String>();
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try {
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is = new ZipArchiveInputStream(new BufferedInputStream(new FileInputStream(zipFile), 1024), encoding);
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ZipArchiveEntry entry = null;
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while ((entry = is.getNextZipEntry()) != null) {
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fileNames.add(entry.getName());
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File file = new File(destDir, entry.getName());
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if (entry.isDirectory()) {
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// 创建文件夹，如果中间有路径会自动创建
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FileUtils.forceMkdir(file);
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} else {
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OutputStream os = null;
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try {
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FileUtils.touch(file);
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os = new FileOutputStream(new File(destDir, entry.getName()));
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IOUtils.copy(is, os);
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} finally {
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IOUtils.closeQuietly(os);
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}
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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throw e;
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} finally {
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IOUtils.closeQuietly(is);
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}
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return fileNames;
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}
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/**
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* 解压 zip 文件
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*
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* @param zipFile zip 压缩文件的路径
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* @param destDir zip 压缩文件解压后保存的目录
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* @param encoding zip 文件的编码
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* @return 返回 zip 压缩文件里的文件名的 list
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* @throws Exception
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*/
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public static List<String> unZip(String zipFile, String destDir, String encoding) throws IOException {
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File zipfile = new File(zipFile);
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return unZip(zipfile, destDir, encoding);
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}
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public static List<String> unZip(String zipFile, String destDir) throws IOException {
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return unZip(zipFile, destDir, "UTF-8");
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}
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}
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