xml - Spring 配置

Question

我一直在阅读 Spring，它一直在谈论您需要的 Spring 配置数据，但是您将这个 xml 文件放在哪里？你把它保存成什么？我似乎在任何地方都找不到此信息。

Answer 1

比在哪里更重要的是，问题应该是给你的:这个“配置数据”到底是什么？

来自 docs :

the Spring IoC container consumes a form of configuration metadata; this configuration metadata represents how you as an application developer tell the Spring container to instantiate, configure, and assemble the objects in your application.

Configuration metadata is traditionally supplied in a simple and intuitive XML format, which is what most of this chapter uses to convey key concepts and features of the Spring IoC container.

但是，您也可以使用 annotations或 Java-based configuration为您的 POJO 提供配置元数据。

In Spring, the objects that form the backbone of your application and that are managed by the Spring IoC container are called beans. A bean is an object that is instantiated, assembled, and otherwise managed by a Spring IoC container. Otherwise, a bean is simply one of many objects in your application. Beans, and the dependencies among them, are reflected in the configuration metadata used by a container.

正如 Tnem 已经提到的，here您可以了解如何在不同的场景中实例化容器。

这个 IoC 容器是什么？

IoC(控制反转)和 DI(依赖注入(inject))是 Martin Fowler 创造的术语。 , 关于 Spring 见 first section of the docs .

如果您想使用 Spring 进行开发，我鼓励您阅读整个引用资料。