标题1

fjoasdf

标题2

撒法发

标题3

faf

public static String code(String str){

        try {
            MessageDigest md= MessageDigest.getInstance("MD5");
            byte[] byteDigest = md.digest(str.getBytes());
            int i;
            StringBuffer buf = new StringBuffer("");
            for(int offset=0;offset<byteDigest.length;offset++){
                i=byteDigest[offset];
                if(i<0){
                    i+=256;
                }
                if(i<16){
                    buf.append("0");
                }
                buf.append(Integer.toHexString(i));
            }
            //32 位加密
            return  buf.toString();

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }

    }

标题4

fasf