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Java中zip和rar解压缩工具

<!--zip 工具-->
<dependency>
    <groupId>org.apache.ant</groupId>
    <artifactId>ant</artifactId>
    <version>1.9.7</version>
</dependency>
<!--rar 工具-->
<dependency>
    <groupId>com.github.junrar</groupId>
    <artifactId>junrar</artifactId>
    <version>6.0.1</version>
</dependency>

工具类

import com.github.junrar.Archive;
import com.github.junrar.rarfile.FileHeader;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;

import java.io.*;
import java.util.Enumeration;


/**
 * 解压缩工具类
 *
 * @author dgb8901
 */
public class ZipAndRarTools {

    /**
     * 解压rar文件
     *
     * @param sourcePath 解压的rar文件路径
     * @param destPath   解压到的文件目录
     * @throws Exception
     */
    public static void unRar(String sourcePath, String destPath) throws Exception {
        File sourceRar = new File(sourcePath);
        File destDir = new File(destPath);
        Archive archive = null;
        FileOutputStream fos = null;
        try {
            archive = new Archive(new FileInputStream(sourceRar));
            FileHeader fh = archive.nextFileHeader();
            int count = 0;
            File destFileName = null;
            while (fh != null) {
                ++count;
                System.out.println((count) + ") " + fh.getFileNameString());
                String compressFileName = fh.getFileNameString().trim();
                destFileName = new File(destDir.getAbsolutePath() + "/" + compressFileName);
                if (fh.isDirectory()) {
                    if (!destFileName.exists()) {
                        destFileName.mkdirs();
                    }
                    fh = archive.nextFileHeader();
                    continue;
                }
                if (!destFileName.getParentFile().exists()) {
                    destFileName.getParentFile().mkdirs();
                }

                fos = new FileOutputStream(destFileName);
                archive.extractFile(fh, fos);
                fos.close();
                fos = null;
                fh = archive.nextFileHeader();
            }
            archive.close();
            archive = null;
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (fos != null) {
                fos.close();
                fos = null;
            }
            if (archive != null) {
                archive.close();
                archive = null;
            }
        }
    }


    /**
     * 解压Zip文件
     *
     * @param zipPath  解压缩的文件位置
     * @param destPath 解压到某个路径
     */
    public static void unZip(String zipPath, String destPath) {
        String descFileNames = destPath;
        if (!descFileNames.endsWith(File.separator)) {
            descFileNames = descFileNames + File.separator;
        }
        try {
            ZipFile zipFile = new ZipFile(zipPath);
            ZipEntry entry = null;
            String entryName = null;
            String descFileDir = null;
            byte[] buf = new byte[4096];
            int readByte = 0;
            Enumeration<ZipEntry> enums = zipFile.getEntries();
            while (enums.hasMoreElements()) {
                entry = enums.nextElement();
                entryName = entry.getName();
                descFileDir = descFileNames + entryName;
                if (entry.isDirectory()) {
                    new File(descFileDir).mkdirs();
                    continue;
                } else {
                    new File(descFileDir).getParentFile().mkdirs();
                }
                File file = new File(descFileDir);
                OutputStream os = new FileOutputStream(file);
                InputStream is = zipFile.getInputStream(entry);
                while ((readByte = is.read(buf)) != -1) {
                    os.write(buf, 0, readByte);
                }
                os.close();
                is.close();
            }
            zipFile.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}

很遗憾的说，推酷将在这个月底关闭。人生海海，几度秋凉，感谢那些有你的时光。

原文 https://www.itwork.club/2020/07/23/zip-rar/

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所属分类：编程技术 Java

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