了控制倒置(inversion of control,简称IoC)和注射依赖设置(setter dependency injection),用XML文件将连接起来。 IoC是简单概念(它允许在上层的创建),用IoC让从创建中释放了,降低了偶合度。
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Spring supports three types of dependency injection — setter, constructor, and method injection — but overall, the prevailing model is setter injection.
Spring支持三种依赖注入——setter、构造函数和方法注入——但总的来说,最流行的模型是setter注入。
Dependency injection can occur in a variety of ways, for example, via a setter method or a class variable.
依赖性的引入可以以多种方式出现,例如,通过设置属性值的方法或者类变量。
Dependency injection can occur in a variety of ways, such as through a setter method or a class variable.
依赖项注入可以通过多种方式进行,例如通过setter方法或类变量。
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