Md5Utils

package cn.itcast.crm.utils;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import sun.misc.BASE64Encoder;
public class  {
	
	
		try {
			MessageDigest md5 = MessageDigest.getInstance("md5");
			byte []afterStr = md5.digest(oldStr.getBytes());
			
			BASE64Encoder b64 = new BASE64Encoder();
			return b64.encode(afterStr);
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}*/
	
	public static String encode(String oldStr){
		try {
			MessageDigest md5 = MessageDigest.getInstance("md5");
			byte []afterStr = md5.digest(oldStr.getBytes());
			
			BigInteger bigInt = new BigInteger(1, afterStr);
			return bigInt.toString(16);
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}
	
	public static void main(String[] args) {
		System.out.println(encode("itcast123"));
//		21232f297a57a5a743894a0e4a801fc3
//		21232f297a57a5a743894a0e4a801fc3
	}
	
}