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- /*
- *
- *
- * 商用软件 Copyright (c) 2010 北京金水技术发展有限公司.
- * All Rights Reserved.
- * 擅自复制或传播本程序的部分或全部属非法行为!
- *
- * 北京金水技术发展有限公司
- */
- package cn.com.goldenwater.dcproj.utils;
- import lombok.extern.slf4j.Slf4j;
- import org.apache.tools.zip.ZipEntry;
- import org.apache.tools.zip.ZipFile;
- import org.apache.tools.zip.ZipOutputStream;
- import java.io.*;
- import java.util.Enumeration;
- import java.util.zip.CRC32;
- import java.util.zip.CheckedOutputStream;
- import java.util.zip.Deflater;
- import java.util.zip.ZipException;
- /**
- * @author <a href="mailto:chinawar3@gmail.com">jiayp</a>
- * @author <a href="mailto:dashuizhuyu@qq.com">liyz</a>
- * @date 2010-8-20
- * @date 2019-7-10
- */
- @Slf4j
- public class ZipUtil {
- /**
- * 是否创建源目录
- */
- private static boolean isCreateSrcDir = false;
- private static int BUFFER_SIZE = 4098;
- private static String ENCODE = "GBK";
- /**
- * 测试方法
- */
- public static void zip(String src, String archive, String comment)
- throws FileNotFoundException, IOException {
- // ----压缩文件:
- FileOutputStream f = new FileOutputStream(archive);
- // 使用指定校验和创建输出流
- CheckedOutputStream csum = new CheckedOutputStream(f, new CRC32());
- ZipOutputStream zos = new ZipOutputStream(csum);
- // 支持中文
- zos.setEncoding(ENCODE);
- BufferedOutputStream out = new BufferedOutputStream(zos);
- // 设置压缩包注释
- zos.setComment(comment);
- // 启用压缩
- zos.setMethod(ZipOutputStream.DEFLATED);
- // 压缩级别为最强压缩,但时间要花得多一点
- zos.setLevel(Deflater.BEST_COMPRESSION);
- File srcFile = new File(src);
- if (!srcFile.exists()
- || (srcFile.isDirectory() && srcFile.list().length == 0)) {
- throw new FileNotFoundException(
- "File must exist and ZIP file must have at least one entry.");
- }
- // 获取压缩源所在父目录
- src = src.replaceAll("\\\\", "/");
- String prefixDir = null;
- if (srcFile.isFile()) {
- prefixDir = src.substring(0, src.lastIndexOf("/") + 1);
- } else {
- prefixDir = (src.replaceAll("/$", "") + "/");
- }
- // 如果不是根目录
- if (prefixDir.indexOf("/") != (prefixDir.length() - 1)
- && isCreateSrcDir) {
- prefixDir = prefixDir.replaceAll("[^/]+/$", "");
- }
- // 开始压缩
- writeRecursive(zos, out, srcFile, prefixDir);
- out.close();
- // 注:校验和要在流关闭后才准备,一定要放在流被关闭后使用
- log.debug("Checksum: " + csum.getChecksum().getValue());
- }
- public static void readByApacheZipFile(File file, String decompressDir)
- throws IOException, FileNotFoundException, ZipException {
- // 支持中文
- ZipFile zf = new ZipFile(file, ENCODE);
- readByApacheZipFile(decompressDir, zf);
- }
- /**
- * 使用 org.apache.tools.zip.ZipFile 解压文件,它与 java 类库中的 java.util.zip.ZipFile
- * 使用方式是一致的,只不过多了设置编码方式的 接口。
- * <p>
- * 注,apache 没有提供 ZipInputStream 类,所以只能使用它提供的ZipFile 来读取压缩文件。
- *
- * @param archive 压缩包路径
- * @param decompressDir 解压路径
- * @throws IOException io异常
- * @throws FileNotFoundException 文件未发现异常
- * @throws ZipException zip异常
- */
- public static void unzip(String archive, String decompressDir)
- throws IOException, FileNotFoundException, ZipException {
- // 支持中文
- ZipFile zf = new ZipFile(archive, ENCODE);
- readByApacheZipFile(decompressDir, zf);
- }
- /**
- * 使用 org.apache.tools.zip.ZipFile 解压文件,它与 java 类库中的 java.util.zip.ZipFile
- * 使用方式是一致的,只不过多了设置编码方式的 接口。
- * <p>
- * 注,apache 没有提供 ZipInputStream 类,所以只能使用它提供的ZipFile 来读取压缩文件。
- *
- * @param file 压缩包文件
- * @param decompressDir 解压路径
- * @throws IOException io异常
- * @throws FileNotFoundException 文件未发现异常
- * @throws ZipException zip异常
- */
- public static void unzip(File file, String decompressDir)
- throws IOException, FileNotFoundException, ZipException {
- // 支持中文
- ZipFile zf = new ZipFile(file, ENCODE);
- readByApacheZipFile(decompressDir, zf);
- }
- /**
- * @param decompressDir decompressDir
- * @param zf zf
- * @throws FileNotFoundException FileNotFoundException
- * @throws IOException IOException
- * @throws ZipException ZipException
- */
- private static void readByApacheZipFile(String decompressDir, ZipFile zf)
- throws FileNotFoundException, IOException, ZipException {
- BufferedInputStream bi = null;
- Enumeration<?> e = zf.getEntries();
- while (e.hasMoreElements()) {
- ZipEntry ze2 = (ZipEntry) e.nextElement();
- String entryName = ze2.getName();
- String path = decompressDir + "/" + entryName;
- if (ze2.isDirectory()) {
- log.debug("正在创建解压目录 - " + entryName);
- File decompressDirFile = new File(path);
- if (!decompressDirFile.exists()) {
- decompressDirFile.mkdirs();
- }
- } else {
- log.debug("正在创建解压文件 - " + entryName);
- String fileDir = path.substring(0, path.lastIndexOf("/"));
- File fileDirFile = new File(fileDir);
- if (!fileDirFile.exists()) {
- fileDirFile.mkdirs();
- }
- BufferedOutputStream bos = new BufferedOutputStream(
- new FileOutputStream(decompressDir + "/" + entryName));
- bi = new BufferedInputStream(zf.getInputStream(ze2));
- byte[] readContent = new byte[BUFFER_SIZE];
- int readCount = bi.read(readContent);
- while (readCount != -1) {
- // 解压对文件二进制加密
- bos.write(readContent, 0, readCount);
- readCount = bi.read(readContent);
- }
- bos.close();
- bi.close();
- }
- }
- zf.close();
- }
- /**
- * 递归压缩
- * <p>
- * 使用 org.apache.tools.zip.ZipOutputStream 类进行压缩,它的好处就是支持中文路径, 而Java类库中的
- * java.util.zip.ZipOutputStream 压缩中文文件名时压缩包会出现乱码。 使用 apache 中的这个类与 java
- * 类库中的用法是一新的,只是能设置编码方式了。
- *
- * @param zos zos
- * @param bo bo
- * @param srcFile srcFile
- * @param prefixDir prefixDir
- * @throws IOException IOException
- * @throws FileNotFoundException FileNotFoundException
- */
- private static void writeRecursive(ZipOutputStream zos,
- BufferedOutputStream bo, File srcFile, String prefixDir)
- throws IOException, FileNotFoundException {
- ZipEntry zipEntry;
- String filePath = srcFile.getAbsolutePath().replaceAll("\\\\", "/")
- .replaceAll("//", "/");
- if (srcFile.isDirectory()) {
- filePath = filePath.replaceAll("/$", "") + "/";
- }
- String entryName = filePath.replace(prefixDir, "").replaceAll("/$", "");
- if (srcFile.isDirectory()) {
- if (!"".equals(entryName)) {
- log.debug("正在创建目录 - " + srcFile.getAbsolutePath()
- + " entryName=" + entryName);
- // 如果是目录,则需要在写目录后面加上 /
- zipEntry = new ZipEntry(entryName + "/");
- zos.putNextEntry(zipEntry);
- }
- File[] srcFiles = srcFile.listFiles();
- for (int i = 0; i < srcFiles.length; i++) {
- writeRecursive(zos, bo, srcFiles[i], prefixDir);
- }
- } else {
- log.debug("正在写文件 - " + srcFile.getAbsolutePath() + " entryName="
- + entryName);
- BufferedInputStream bi = new BufferedInputStream(
- new FileInputStream(srcFile));
- // 开始写入新的ZIP文件条目并将流定位到条目数据的开始处
- zipEntry = new ZipEntry(entryName);
- zos.putNextEntry(zipEntry);
- byte[] buffer = new byte[BUFFER_SIZE];
- int readCount = bi.read(buffer);
- while (readCount != -1) {
- bo.write(buffer, 0, readCount);
- readCount = bi.read(buffer);
- }
- // 注,在使用缓冲流写压缩文件时,一个条件完后一定要刷新一把,不
- // 然可能有的内容就会存入到后面条目中去了
- bo.flush();
- // 文件读完后关闭
- bi.close();
- }
- }
- }
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