JAVA

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代码如下: import java.security.*; import java.security.spec.*; class MD5_Test{ public final static String MD5(String s){ char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; try { byte[] strTemp = s.getBytes(); MessageDigest mdTemp = MessageDigest.getInstance("MD5"); mdTemp.update(strTemp); byte[] md = mdTemp.digest(); int j = md.length; char str[] = new char[j * 2]; int k = 0; for (int i = 0; i < j; i ) { byte byte0 = md[i]; str[k ] = hexDigits[byte0 >>> 4 & 0xf]; str[k ] = hexDigits[byte0 & 0xf]; } return new String(str); } catch (Exception e){ return null; } } public static void main(String[] args){ //MD5_Test aa = new MD5_Test(); System.out.print(MD5_Test.MD5("XX")); }