如何在java中提取.pkg扩展文件数据

Question

我有.pkg文件，我想用Java提取文件的数据。每当我尝试通过ZipFile提取数据时，它都会引发异常：

java.io.FileNotFoundException: C:\Users\kapilb\Desktop\kapilBaghel\dmserver.pkg (The system cannot find the file specified)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:214)
at java.util.zip.ZipFile.<init>(ZipFile.java:144)
at java.util.zip.ZipFile.<init>(ZipFile.java:158)
at dm.com.app.core.database.Testing.unZip(Testing.java:22)
at dm.com.app.core.database.Testing.main(Testing.java:61)

代码：

public static void unZip(File objZipFile, File objDestDir) {

    try {
        ZipFile zipFile = new ZipFile(objZipFile);
        Enumeration<?> enu = zipFile.entries();
        while (enu.hasMoreElements()) {
            ZipEntry zipEntry = (ZipEntry) enu.nextElement();

            String name = zipEntry.getName();

            File file = new File(objDestDir, name);
            if (name.endsWith("/")) {
                file.mkdirs();
                continue;
            }

            File parent = file.getParentFile();
            if (parent != null) {
                parent.mkdirs();
            }

            InputStream is = zipFile.getInputStream(zipEntry);
            FileOutputStream fos = new FileOutputStream(file);
            byte[] bytes = new byte[1024];
            int length;
            while ((length = is.read(bytes)) >= 0) {
                fos.write(bytes, 0, length);
            }
            is.close();
            fos.close();

        }
        zipFile.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}