MD5算法加密(小工具)

/**
     * MD5算法加密
     * @param src 要加密的字符串
     * @return 加密后的字符串
     */
    public static String encrypt(String src) {
        try {
            StringBuffer buffer = new StringBuffer();
            char[] chars = { ‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘, ‘8‘, ‘9‘, ‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘ };
            byte[] bytes = src.getBytes();
            MessageDigest md = MessageDigest.getInstance("MD5");
            byte[] targ = md.digest(bytes);
            for (byte b : targ) {
                buffer.append(chars[(b >> 4) & 0x0F]);
                buffer.append(chars[b & 0x0F]);
            }
            return buffer.toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }