public static String getKey(String dataId, String group) {
        StringBuilder sb = new StringBuilder();
        GroupKey.urlEncode(dataId, sb);
        sb.append('+');
        GroupKey.urlEncode(group, sb);
        return sb.toString();
    }
@Test
    public void getKeyTenantIdentifySpecialTest() {
        String key = Md5ConfigUtil.getKey("DataId+", "Group+", "Tenant+", "Identify");
        Assert.isTrue(Objects.equals("DataId%2B+Group%2B+Tenant%2B+Identify", key));
    }