1. non-simplify mode:
```
dubbo://120.0.0.1:20880/org.apache.dubbo.demo.DemoService?key=value
```
the store path of ZK will be: `/dubbo/porg.apache.dubbo.demo.DemoService/url`

2. simplify mode:
```
dubbo://120.0.0.1:20880/org.apache.dubbo.demo.DemoService?key=value
```
the store path of ZK will be: `/dubbo/porg.apache.dubbo.demo.DemoService/url`

3. simplify mode with path specified:
```
dubbo://120.0.0.1:20880/path-value?key=value
```
the store path of ZK will be: `/dubbo/path-value/url`
URL overrideUrl = url;
                
                if (url.getParameter(CATEGORY_KEY) == null && OVERRIDE_PROTOCOL.equals(url.getProtocol())) {
                    overrideUrl = url.addParameter(CATEGORY_KEY, CONFIGURATORS_CATEGORY);
                }
                
                if (UrlUtils.isMatch(currentSubscribe, overrideUrl)) {
                    result.add(url);
                }
            }
            return result;
        }
    }
    private class ServiceConfigurationListener extends AbstractConfiguratorListener {
        private URL providerUrl;
        private OverrideListener notifyListener;
        public ServiceConfigurationListener(URL providerUrl, OverrideListener notifyListener) {
            this.providerUrl = providerUrl;
            this.notifyListener = notifyListener;
            this.initWith(providerUrl.getEncodedServiceKey() + CONFIGURATORS_SUFFIX);
        }
        private <T> URL overrideUrl(URL providerUrl) {
            return RegistryProtocol.getConfigedInvokerUrl(configurators, providerUrl);
        }
        @Override
        protected void notifyOverrides() {
            notifyListener.doOverrideIfNecessary();
        }
    }
    private class ProviderConfigurationListener extends AbstractConfiguratorListener {