Adding Custom Client Connection Properties
现在，CachingConnectionFactory 允许你访问底层连接工厂以允许设置自定义客户端属性，例如。以下示例演示如何执行此操作：
The CachingConnectionFactory now lets you access the underlying connection factory to allow, for example,
setting custom client properties.
The following example shows how to do so:
connectionFactory.getRabbitConnectionFactory().getClientProperties().put("thing1", "thing2");查看连接时，这些属性将显示在 RabbitMQ 管理界面中。
These properties appear in the RabbitMQ Admin UI when viewing the connection.