It must then use this instance to retrieve an instance of a ConnectionFactory. For example.
接着，它必须使用该实例来检索ConnectionFactory实例。
Connection and ConnectionFactory are the two main class definitions in the resource package.
Connection和ConnectionFactory是资源包中两个主要的类定义。
Connection and ConnectionFactory are the two main class definitions in the resource package.
Connection和ConnectionFactory是资源包中两个主要的类定义。
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