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"/>
```

"The registry config is: " + registryConfig);
            }
        }
        useRegistryForConfigIfNecessary();
    }
    @SuppressWarnings("deprecation")
    protected void checkApplication() {
        // 
        createApplicationIfAbsent();
        if (!application.isValid()) {
            throw new IllegalStateException("No application config found or it's not a valid config! " +
                    "Please add <dubbo:application name=\"...\" /> to your spring config.");
        }
        ApplicationModel.setApplication(application.getName());
        // 
        String wait = ConfigUtils.getProperty(SHUTDOWN_WAIT_KEY);
        if (wait != null && wait.trim().length() > 0) {
            System.setProperty(SHUTDOWN_WAIT_KEY, wait.trim());
        } else {
            wait = ConfigUtils.getProperty(SHUTDOWN_WAIT_SECONDS_KEY);
            if (wait != null && wait.trim().length() > 0) {
                System.setProperty(SHUTDOWN_WAIT_SECONDS_KEY, wait.trim());
            }
        }
    }
    protected void checkMonitor() {
        createMonitorIfAbsent();
        if (!monitor.isValid()) {
            logger.info("There's no valid monitor config found, if you want to open monitor statistics for Dubbo, " +
                    "please make sure your monitor is configured properly.");