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 void checkDefault() {
        createConsumerIfAbsent();
    }
    private void createConsumerIfAbsent() {
        if (consumer != null) {
            return;
        }
        setConsumer(
                        ConfigManager.getInstance()
                            .getDefaultConsumer()
                            .orElseGet(() -> {
                                ConsumerConfig consumerConfig = new ConsumerConfig();
                                consumerConfig.refresh();
                                return consumerConfig;
                            })
                );
    }
    private void completeCompoundConfigs() {
        if (consumer != null) {
            if (application == null) {
                setApplication(consumer.getApplication());
            }
            if (module == null) {
                setModule(consumer.getModule());
            }
            if (registries == null) {
                setRegistries(consumer.getRegistries());
            }
            if (monitor == null) {
                setMonitor(consumer.getMonitor());