Java : 하위 폴더가있는 폴더 압축 해제

파일을 하위 폴더로 추출하는 데 문제가 있습니다. 압축을 풀어야하는 zip 파일에는 여러 개의 폴더가 있으며 압축을 풀 때 디렉토리 구조를 유지하려고합니다.

package components;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

/**
 * This utility extracts files and directories of a standard zip file to
 * a destination directory.
 * 
 *
 */
public class UnzipUtility {
    /**
     * Size of the buffer to read/write data
     */
    private static final int BUFFER_SIZE = 4096;
    /**
     * Extracts a zip file specified by the zipFilePath to a directory specified by
     * destDirectory (will be created if does not exists)
     * @param zipFilePath
     * @param destDirectory
     * @throws IOException
     */
    public void unzip(String zipFilePath, String destDirectory) throws IOException {
        File destDir = new File(destDirectory);
        if (!destDir.exists()) {
            destDir.mkdir();
        }
        ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFilePath));

        ZipEntry entry = zipIn.getNextEntry();
        // iterates over entries in the zip file
        while (entry != null) {
            String filePath = destDirectory + File.separator + entry.getName();
            if (!entry.isDirectory()) {
                // if the entry is a file, extracts it
                extractFile(zipIn, filePath);
                System.out.println(filePath);
            } else {
                // if the entry is a directory, make the directory
                File dir = new File(filePath);
                System.out.println(filePath);
                dir.mkdir();
            }
            zipIn.closeEntry();
            entry = zipIn.getNextEntry();
        }
        zipIn.close();
    }
    /**
     * Extracts a zip entry (file entry)
     * @param zipIn
     * @param filePath
     * @throws IOException
     */
    private void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
        byte[] bytesIn = new byte[BUFFER_SIZE];
        int read = 0;
        while ((read = zipIn.read(bytesIn)) != -1) {
            bos.write(bytesIn, 0, read);
        }
        bos.close();
    }
}

코드에서 얻은 출력은 다음과 같습니다. 문제는 DoD-DISA-logos-as-JPEG.jpg 파일이 하위 폴더에 대한 하위 폴더의 일부라는 것입니다. 따라서 경로는 folder / subfolder / childfolder / DoD-DISA-logos-as-JPEG.jpg 여야합니다. 해당 하위 폴더를 포함하지 않으므로 내가 믿는 IO 예외가 발생합니다.

java.io.FileNotFoundException: /Users/user/Desktop/folder/subfolder/DoD-DISA-logos-as-JPEG.jpg (No such file or directory)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(FileOutputStream.java:270)
    at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
    at java.io.FileOutputStream.<init>(FileOutputStream.java:101)
    at components.UnzipUtility.extractFile(UnzipUtility.java:62)
    at components.UnzipUtility.unzip(UnzipUtility.java:42)
    at components.UnzipUtilityTest.main(UnzipUtilityTest.java:9)