JAX-RPC provides the rules for these mappings while JSR-109 provides a XML-based deployment descriptor standardized representation.
JAX - RPC提供这些映射的规则，而JSR- 109提供一个基于XML的部署描述符的标准化表示。
To make use of expiration-based caching, portlets must define the duration of the expiration cache in the deployment descriptor portlet.xml (for standardized portlet following JSR 168 specification).
为了使用基于过期的缓存，portlet必须在部署描述符portlet . xml(对于符合JSR 168规范的标准化portlet)中定义过期缓存的持续时间。
To make use of expiration-based caching, portlets must define the duration of the expiration cache in the deployment descriptor portlet.xml (for standardized portlet following JSR 168 specification).
为了使用基于过期的缓存，portlet必须在部署描述符portlet . xml(对于符合JSR 168规范的标准化portlet)中定义过期缓存的持续时间。
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