MD5加密

MD5加密算法

package com.mynj.utils;

import java.security.MessageDigest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 采用MD5加密
 * @author hous
 * @date 2015-11-5
 *
 */
public class MD5Utils {
	
	private static Logger logger = LoggerFactory.getLogger(MD5Utils.class);
	
	/**
	 * MD5加密 生成32位md5码
	 * @param 待加密字符串
	 * @return 返回32位md5码
	 * @throws Exception
	 */
    public static String md5Encode(String sourceStr) {
        String result = "";
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(sourceStr.getBytes());
            byte b[] = md.digest();
            int i;
            StringBuffer buf = new StringBuffer("");
            for (int offset = 0; offset < b.length; offset++) {
                i = b[offset];
                if (i < 0)
                    i += 256;
                if (i < 16)
                    buf.append("0");
                buf.append(Integer.toHexString(i));
            }
            result = buf.toString();
        } catch (Exception e) {
            logger.error("md5加密异常:{}", sourceStr, e);
        }
        return result;
    }
    
    public static void main(String[] args) {
    	System.out.println(md5Encode("www.shanshanbox.com"));
	}
    
}