package com.dji.sample.speak.util;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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public class MD5Util {
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public static String getMD5Checksum(File file) {
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try (InputStream fis = new FileInputStream(file)) {
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MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] buffer = new byte[1024];
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int bytesRead;
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while ((bytesRead = fis.read(buffer)) != -1) {
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md.update(buffer, 0, bytesRead);
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}
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byte[] digest = md.digest();
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StringBuilder sb = new StringBuilder();
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for (byte b : digest) {
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sb.append(String.format("%02x", b));
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}
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return sb.toString();
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} catch (IOException | NoSuchAlgorithmException e) {
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e.printStackTrace();
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return null;
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}
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}
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}
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