MD5

package com.bochy.md5;


import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;


import com.sun.management.VMOption.Origin;


public class MD_5 {
	
	public static String toMD5(String origin) throws NoSuchAlgorithmException{
		MessageDigest digest=MessageDigest.getInstance("MD5");
		byte[] results = digest.digest(origin.getBytes());
		String md5String = toHex(results);
		return md5String;
	}


	private static String toHex(byte[] results) {
		// TODO Auto-generated method stub
		if(results==null){
			return null;
		}
		StringBuilder hexString =new StringBuilder();
		for(int i=0;i<results.length;i++){
			int hi=(results[i]>>4)&0x0f;
			int lo=results[i]&0x0f;
			hexString.append(Character.forDigit(hi, 16)).append(Character.forDigit(lo, 16));
			
		}
		return hexString.toString();
	}
}