SSM项目之MD5加密

SSM项目之MD5加密

package kj15.util;  import org.apache.commons.codec.binary.Hex; import org.junit.Test;  import java.math.BigInteger; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException;  public class MD5Utils {     public static String SALT = "23543df.ggee..lysdaf..aqj23ou89ZXcj@#$@#$#@KJdjklj;D../dSF.,";        /* public static String stringToMD5(String plainText) {             byte[] secretBytes = null;             try {                 secretBytes = MessageDigest.getInstance("md5").digest(                         plainText.getBytes());             } catch (NoSuchAlgorithmException e) {                 throw new RuntimeException("没有这个md5算法！");             }             String md5code = new BigInteger(1, secretBytes).toString(16);             for (int i = 0; i < 32 - md5code.length(); i  ) {                 md5code = "0"   md5code;             }             return md5code;         }*/      /**      * 加盐MD5加密      * <p>      *      * @Title : getSaltMD5      * </p>      * <p>      * @Description : TODO      * </p>      */     public static String getSaltMD5(String password) {          // 产生最终的加密盐          password = md5Hex(password   SALT);         char[] cs = new char[48];         for (int i = 0; i < 48; i  = 3) {             cs[i] = password.charAt(i / 3 * 2);             char c = SALT.charAt(i / 3);             cs[i   1] = c;             cs[i   2] = password.charAt(i / 3 * 2   1);         }         return String.valueOf(cs);     }      /**      * 使用Apache的Hex类实现Hex(16进制字符串和)与字节数组的互转      * <p>      *      * @Title : md5Hex      * </p>      * <p>      * @Description : TODO      * </p>      */ //    @SuppressWarnings("unused")     private static String md5Hex(String str) {         try {             MessageDigest md = MessageDigest.getInstance("MD5");             byte[] digest = md.digest(str.getBytes());             return new String(new Hex().encode(digest));         } catch (Exception e) {             e.printStackTrace();             System.out.println(e.toString());             return "";         }     }      @Test     public void  ss(){         String saltMD5 = MD5Utils.getSaltMD5("adsads213as132");         System.out.println(saltMD5);     }      }