Java中生成一个字符串的MD5值有哪几种方式呢？

实现思路:
    方式1：
	  借助原生的java.security.MessageDigest
	  类中的方法，生成MD5
	 
	方式2:
	   借助Spring框架中的工具类，生成字符串的MD5值    

package com.java265.other;
import java.security.MessageDigest;
public class MyMD5Util {
	//盐，用于混交md5
	private static final String slat = "java265.com";
	public static String encrypt(String dataStr) {
		try {
			dataStr = dataStr + slat;
			MessageDigest m = MessageDigest.getInstance("MD5");
			m.update(dataStr.getBytes("UTF8"));
			byte s[] = m.digest();
			String result = "";
			for (int i = 0; i < s.length; i++) {
				result += Integer.toHexString((0x000000FF & s[i]) | 0xFFFFFF00).substring(6);
			}
			return result;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return "";
	}
}

package com.java265.other;
import org.springframework.util.DigestUtils;
import com.pibigstar.common.Constant;
public class MD5Util {
	//盐，用于混交md5
	private static final String slat = "java265.com";
	 
	public static String getMD5(String str) {
		String base = str +"/"+slat;
		String md5 = DigestUtils.md5DigestAsHex(base.getBytes());
		return md5;
	}
}