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- 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<MessageDigest> MD5 = new ThreadLocal<MessageDigest>() {
- @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"));
- }
- }
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