苹果限制用到网络、GPS及其他与通话相关的资源的后台服务的使用a，以便节省电池寿命。

Apple restricts the use of background services that use the network, GPS, and other phone-related resources, in order to conserve battery life.

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正如下面约束与限制部分中所述，消息流必须仅访问JDBC xa数据源和mq队列，而不是其他OD BC数据源或资源管理器。

As noted in the Restrictions and Limitations section below, the message flow must access only the JDBC XA data source and MQ queues, and not other ODBC data sources or resource managers.

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注意：如果您想访问需要认证的资源，那么您可以指定第二个与安全性限制相关联的servlet映射。

Note: if you need to access resources that require authentication, you can specify a second servlet mapping that is associated with a security constraint.

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