java MD5加密

 

 

java MD5加密：

 

package com.sina.util;

import java.security.MessageDigest;

public class MD5Util {

	public static String getMD5(String source) {

		MessageDigest messageDigest = null;

		try {
			messageDigest = MessageDigest.getInstance("MD5");
			messageDigest.reset();
			messageDigest.update(source.getBytes("UTF-8"));
		} catch (Exception e) {
			e.printStackTrace();
		}

		byte[] byteArray = messageDigest.digest();
		StringBuffer md5StrBuff = new StringBuffer();

		for (int i = 0; i < byteArray.length; i++) {
			if (Integer.toHexString(0xFF & byteArray[i]).length() == 1) {
				md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));
			} else {
				md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
			}
		}

		return md5StrBuff.toString();
	}

}

 

 

java MD5