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Java池化技术你了解多少？

在我们平常的编码中，通常会将一些对象保存起来，这主要考虑的是对象的创建成本。比如像线程资源、数据库连接资源或者 TCP 连接等，这类对象的初始化通常要花费比较长的时间，如果频繁地申请和销毁，就会耗费大量的系统资源，造成不必要的性能损失。并且这些对象都有一个显著的特征，就是通过轻量级的重置工作...

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在上一篇文章《Java 数据持久化系列之JDBC》中，我们了解到使用 JDBC 创建 Connection 可以执行对应的SQL，但是创建 Connection 会消耗很多资源，所以 Java 持久化框架中往往不直接使用 JDBC，而是在其上建立数据库连接池层。今天我们就先来了解一下池化技术的必要...

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