问如何从java中的父zip文件中提取嵌套zip作为zip文件

EN

import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class TestZipUtil {
  public static void unzip(String zipFilePath, String destDirectory) throws IOException {
    File srcZipFile = new File(zipFilePath);
    int size = (int) srcZipFile.length();
    byte[] bufferSize = new byte[size];

    File destDir = new File(destDirectory);
    if (!destDir.exists()) {
      destDir.mkdir();
    }
    ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFilePath));
    ZipEntry entry = zipIn.getNextEntry();
    while (entry != null) {
      String filePath = destDirectory + File.separator + entry.getName();
      if (!entry.isDirectory()) {
        extractFile(zipIn, filePath, bufferSize);
      } else {
        File dir = new File(filePath);
        dir.mkdir();
      }
      zipIn.closeEntry();
      entry = zipIn.getNextEntry();
    }
    zipIn.close();
  }

  private static void extractFile(ZipInputStream zipIn, String filePath, byte[] bytesBuffer)
      throws IOException {
    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
    int read = 0;
    while ((read = zipIn.read(bytesBuffer)) != -1) {
      bos.write(bytesBuffer, 0, read);
    }
    bos.close();
  }

  public static void main(String[] args) throws Exception {
    unzip(
        "yourlocation\\zip-file-name.zip",
        "yourlocation\\unzip-folder-location");
  }
}