package org.jeecg.common.util; import org.apache.commons.codec.digest.DigestUtils; import java.io.FileInputStream; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class MD5Util { private static ThreadLocal MD5 = new ThreadLocal() { @Override protected MessageDigest initialValue() { try { return MessageDigest.getInstance("MD5"); } catch (NoSuchAlgorithmException e) { throw new IllegalStateException("No md5 algorithm found"); } } }; public static String toHexStr(byte[] bytes) { int j = bytes.length; char[] str = new char[j * 2]; int k = 0; for (int i = 0; i < j; i++) { byte byte0 = bytes[i]; str[k++] = HEX_DIGITS_CHAR[byte0 >>> 4 & 0xf]; str[k++] = HEX_DIGITS_CHAR[byte0 & 0xf]; } return String.valueOf(str); } public static String getMd5(String url) { MessageDigest md5 = MD5.get(); md5.reset(); return toHexStr(md5.digest(url.getBytes())); } public static String byteArrayToHexString(byte b[]) { StringBuffer resultSb = new StringBuffer(); for (int i = 0; i < b.length; i++){ resultSb.append(byteToHexString(b[i])); } return resultSb.toString(); } private static String byteToHexString(byte b) { int n = b; if (n < 0) { n += 256; } int d1 = n / 16; int d2 = n % 16; return hexDigits[d1] + hexDigits[d2]; } public static String MD5Encode(String origin, String charsetname) { String resultString = null; try { resultString = new String(origin); MessageDigest md = MessageDigest.getInstance("MD5"); if (charsetname == null || "".equals(charsetname)) { resultString = byteArrayToHexString(md.digest(resultString.getBytes())); } else { resultString = byteArrayToHexString(md.digest(resultString.getBytes(charsetname))); } } catch (Exception exception) { } return resultString; } public static String md5Encode(String origin, String charsetname) { String resultString = null; try { resultString = new String(origin); MessageDigest md = MessageDigest.getInstance("MD5"); if (charsetname == null || "".equals(charsetname)) { resultString = byteArrayToHexString(md.digest(resultString.getBytes())); } else { resultString = byteArrayToHexString(md.digest(resultString.getBytes(charsetname))); } } catch (Exception exception) { } return resultString; } private static final String hexDigits[] = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" }; private static final String[] HEX_DIGITS = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f" }; private static final char[] HEX_DIGITS_CHAR = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; public static String getFileMd5(String path) throws Exception { return DigestUtils.md5Hex(new FileInputStream(path)); } public static void main(String[] args) throws Exception { System.out.println(getFileMd5("D:\\mnt\\0427有缘3-帆楠E打车-同城热恋-1587982341839.mp4")); System.out.println(getFileMd5("D:\\mnt\\0427有缘4-帆楠E洗脚-同城热恋-1593661309704.mp4")); } }