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`
*/
    private URL getRegisteredProviderUrl(final URL providerUrl, final URL registryUrl) {
        
        if (!registryUrl.getParameter(SIMPLIFIED_KEY, false)) {
            return providerUrl.removeParameters(getFilteredKeys(providerUrl)).removeParameters(
                    MONITOR_KEY, BIND_IP_KEY, BIND_PORT_KEY, QOS_ENABLE, QOS_PORT, ACCEPT_FOREIGN_IP, VALIDATION_KEY,
                    INTERFACES);
        } else {
            String[] paramsToRegistry = getParamsToRegistry(DEFAULT_REGISTER_PROVIDER_KEYS,
                    registryUrl.getParameter(EXTRA_KEYS_KEY, new String[0]));
            return URL.valueOf(providerUrl, paramsToRegistry, providerUrl.getParameter(METHODS_KEY, (String[]) null));
        }
    }
    private URL getSubscribedOverrideUrl(URL registeredProviderUrl) {
        return registeredProviderUrl.setProtocol(PROVIDER_PROTOCOL)
                .addParameters(CATEGORY_KEY, CONFIGURATORS_CATEGORY, CHECK_KEY, String.valueOf(false));
    }
    /**
     * Get the address of the providerUrl through the url of the invoker
     *
     * @param originInvoker
     * @return
     */
    private URL getProviderUrl(final Invoker<?> originInvoker) {
        String export = originInvoker.getUrl().getParameterAndDecoded(EXPORT_KEY);
        if (export == null || export.length() == 0) {
            throw new IllegalArgumentException("The registry export url is null! registry: " + originInvoker.getUrl());
        }
        return URL.valueOf(export);
    }