public static String calSignature(String data, String key) throws AclException {
        return calSignature(data, key, DEFAULT_ALGORITHM, DEFAULT_CHARSET);
    }
@Test
    public void calSignatureTest() {
        String expectedSignature = "IUc8rrO/0gDch8CjObLQsW2rsiA=";
        Assert.assertEquals(expectedSignature, AclSigner.calSignature("RocketMQ", "12345678"));
        Assert.assertEquals(expectedSignature, AclSigner.calSignature("RocketMQ".getBytes(), "12345678"));
    }