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`
return new java.net.URL(toString());
        } catch (MalformedURLException e) {
            throw new IllegalStateException(e.getMessage(), e);
        }
    }
    public InetSocketAddress toInetSocketAddress() {
        return new InetSocketAddress(host, port);
    }
    /**
     * The format is '{group}/{interfaceName/path}*{version}'
     *
     * @return
     */
    public String getEncodedServiceKey() {
        String serviceKey = this.getServiceKey();
        serviceKey = serviceKey.replaceFirst("/", "*");
        return serviceKey;
    }
    public String getServiceKey() {
        String inf = getServiceInterface();
        if (inf == null) {
            return null;
        }
        StringBuilder buf = new StringBuilder();
        String group = getParameter(Constants.GROUP_KEY);
        if (group != null && group.length() > 0) {
            buf.append(group).append("/");
        }
        buf.append(inf);
        String version = getParameter(Constants.VERSION_KEY);