java解压命令如何进行文件校验

?Java?,?????java.util.zip?????????????????????????,???????Java??ZIP????????????

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

public class UnzipAndVerify {

    public static void main(String[] args) {
        String zipFilePath = "path/to/your/zipfile.zip";
        String destDirectory = "path/to/your/destination/directory";
        String expectedChecksum = "expected_checksum_value"; // ??MD5?SHA-1???????????

        try {
            // ????
            unzip(zipFilePath, destDirectory);

            // ???????????
            String actualChecksum = calculateChecksum(destDirectory + File.separator + "your_file_to_verify");

            // ?????
            if (expectedChecksum.equals(actualChecksum)) {
                System.out.println("??????!");
            } else {
                System.out.println("??????!");
            }
        } catch (IOException | NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
    }

    public static 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();

        while (entry != null) {
            String filePath = destDirectory + File.separator + entry.getName();
            if (!entry.isDirectory()) {
                extractFile(zipIn, filePath);
            } else {
                File dir = new File(filePath);
                dir.mkdirs();
            }
            zipIn.closeEntry();
            entry = zipIn.getNextEntry();
        }
        zipIn.close();
    }

    public static void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
        byte[] bytesIn = new byte[4096];
        int read = 0;
        while ((read = zipIn.read(bytesIn)) != -1) {
            bos.write(bytesIn, 0, read);
        }
        bos.close();
    }

    public static String calculateChecksum(String filePath) throws IOException, NoSuchAlgorithmException {
        MessageDigest md = MessageDigest.getInstance("MD5"); // ???SHA-1???
        FileInputStream fis = new FileInputStream(filePath);
        byte[] buffer = new byte[1024];
        int bytesRead;
        while ((bytesRead = fis.read(buffer)) != -1) {
            md.update(buffer, 0, bytesRead);
        }
        fis.close();
        byte[] digest = md.digest();
        StringBuilder sb = new StringBuilder();
        for (byte b : digest) {
            sb.append(String.format("x", b));
        }
        return sb.toString();
    }
}

?????,??????ZIP??,??????????MD5??????,????????????????????????????,????????;??,??????????,???????????zipFilePath?destDirectory?expectedChecksum?????