MD5的实现

scala 版本

1   def getSigned(createTime:String): String ={
2     val secrectStr = appId+createTime+appKey
3     val digest: MessageDigest = MessageDigest.getInstance("MD5")
4     val encoded: Array[Byte] = digest.digest(secrectStr.getBytes())
5     val str = encoded.map("%02x".format(_)).mkString
6     str
7   }

Java版本

 1 import cn.hutool.http.HttpUtil;
 2 
 3 import java.nio.charset.StandardCharsets;
 4 import java.security.MessageDigest;
 5 import java.security.NoSuchAlgorithmException;
 6 import java.util.Calendar;
 7 import java.util.Locale;
 8 
 9 /**
10  * @author lipenghuai
11  * @version 1.0
12  * @description desc
13  * @date 2022-04-29 11:33
14  */
15 public class MD5Test {
16     private static String MD5 = "MD5";
17     private static char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
18 
19     public static String sign(String str) throws NoSuchAlgorithmException {
20         byte[] btInput = str.getBytes(StandardCharsets.UTF_8);
21         MessageDigest messageDigest = MessageDigest.getInstance(MD5);
22         messageDigest.update(btInput);
23 
24         byte[] encryptData = messageDigest.digest();
25         String encryptDataStr = bytesToHex(encryptData);
26         return encryptDataStr;
27 
28     }
29 
30     public static String bytesToHex(byte[] bytes){
31         int k = 0;
32         char[] hexChars = new char[bytes.length * 2];
33         for (int i = 0; i < bytes.length; i++) {
34             byte byte0 = bytes[i];
35             hexChars[k++] = hexDigits[byte0 >>> 4 & 0xf];
36             hexChars[k++] = hexDigits[byte0 & 0xf];
37         }
38         return new String(hexChars);
39     }
40 
41     public static void main(String[] args) throws NoSuchAlgorithmException {
42         System.out.println(MD5Test.sign("0142ce45b6d84a2f85eafe6992ddb16e1651210819sn6852163Y8Z").toLowerCase(Locale.ROOT));
43         System.out.println(System.currentTimeMillis() / 1000);
44         System.out.println(Calendar.getInstance().getTimeInMillis());
45 
46     }
47 }

python版本

1     def get_sign(self):
2         str = self.__app_id+self.__create_time+self.__app_key
3         md5 = hashlib.md5()
4         md5.update(str.encode("utf-8"))
5         return md5.hexdigest()

 

标签：MessageDigest,java,String,实现,static,str,import,MD5
来源： https://www.cnblogs.com/wind-man/p/16215366.html