关于java：新关键字在Spring Framework中的作用

Role of new keyword in Spring Framework

在Spring框架中，bean似乎是创建要在业务逻辑中使用的对象的首选方法。

[Dependency injection] is a process whereby objects define their dependencies, that is, the other objects they work with, only through constructor arguments, arguments to a factory method, or properties that are set on the object instance after it is constructed or returned from a factory method. The container then injects those dependencies when it creates the bean. This process is fundamentally the inverse, hence the name Inversion of Control (IoC), of the bean itself controlling the instantiation or location of its dependencies by using direct construction of classes, or a mechanism such as the Service Locator pattern.

所以从我的简单理解来看，区别是这样的：

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// Plain ol' Java
Foo f = new Foo();

// Using beans in Spring Framework
Foo f = FooFactory.get();

一般来说，在@Configuration类和@Bean定义之外的方法中，开发人员应该只使用bean获取对象，这是否过于简单化了？具体来说，在我想要一个新对象的情况下，我应该注入一个原型bean而不是直接使用new关键字吗？

下面是一个代码示例，我不确定我是否遵循了Spring约定。

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// Construct a new object that will be created in the database
RecordDto record = new RecordDto();

// Or should I be using some bean factory?
RecordDto record = RecordDtoFactory.get();