## 问题描述
使用如下方式配置RegistryConfig bean时

```java
    @Bean
    public RegistryConfig registryConfig() {
        RegistryConfig registryConfig = new RegistryConfig();
        registryConfig.setProtocol("zookeeper");
        registryConfig.setAddress("localhost");
        registryConfig.setPort(2181);
        return registryConfig;
    }
```

提示无法与zookeeper建立连接，调试代码发现，zookeeper链接为

`zookeeper://localhost:9090/ConfigCenterConfig?check=true&config-file=dubbo.properties&group=dubbo&highest-priority=false&namespace=dubbo&timeout=3000`

使用了9090端口，未使用2181端口，registryConfig.setPort()不生效。

对比测试，使用registryConfig.setAddress("localhost:2181")方式可以生效。


}
        return this;
    }
    private boolean hasExportedServices() {
        return !metadataService.getExportedURLs().isEmpty();
    }
    /**
     * Block current thread to be await.
     *
     * @return {@link DubboBootstrap}
     */
    public DubboBootstrap await() {
        
        if (!awaited.get()) {
            if (!executorService.isShutdown()) {
                executeMutually(() -> {
                    while (!awaited.get()) {
                        if (logger.isInfoEnabled()) {
                            logger.info(NAME + " awaiting ...");
                        }
                        try {
                            condition.await();
                        } catch (InterruptedException e) {
                            Thread.currentThread().interrupt();
                        }
                    }
                });
            }
        }
        return this;