我们使用方法分组来用dubbo，每个分组有自己权限，但是dubbo:registry标签 username & password 不生效，
让我不得不使用
```
    <dubbo:registry
            address="zookeeper://username:pwd@ip:port"
            group="xxx"/>
```
这种写法失效
```
    <dubbo:registry
            address="zookeeper://ip:port"
            username="username"
            password="pwd"/>
```

return application;
    }
    public void setApplication(ApplicationConfig application) {
        ConfigManager.getInstance().setApplication(application);
        this.application = application;
    }
    private void createApplicationIfAbsent() {
        if (this.application != null) {
            return;
        }
        ConfigManager configManager = ConfigManager.getInstance();
        setApplication(
                configManager
                        .getApplication()
                        .orElseGet(() -> {
                            ApplicationConfig applicationConfig = new ApplicationConfig();
                            applicationConfig.refresh();
                            return applicationConfig;
                        })
        );
    }
    public ModuleConfig getModule() {
        return module;
    }
    public void setModule(ModuleConfig module) {
        ConfigManager.getInstance().setModule(module);
        this.module = module;
    }
    public RegistryConfig getRegistry() {
        return CollectionUtils.isEmpty(registries) ? null : registries.get(0);