The Customer Service utility demonstrated how to access this resource from JNDI by using a session bean to send messages to a JMS topic and an MDB to receive those messages asynchronously.

Customer Service实用程序演示了如何使用会话bean将消息发送到JMS主题，并使用MDB同步接收那些消息，从而从JNDI访问此资源。

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For instance, a JMS client could send a message to an MDB (which is constantly online awaiting incoming messages), which in turn could access a session bean or a handful of entity beans.

例如，JMS客户机可以发送一条消息给一个MDB(该M DB一直在线等待传进来的消息)，而后者可以访问一个会话bean或者一些实体bean。

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There are a few ways to access the MDB ActivationSpec tuning parameters.

有几种方法可以访问MDB activationspec调优参数。

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