英文:
What are the differences between object and spring beans?
问题
你可以解释一下Spring Bean和对象之间的区别。
我还是不太明白Spring中的Bean是什么，Spring Bean在Spring中的确切角色是什么？
显然，仅仅说Bean在我们应用程序中形成了主要的支柱这个定义是不够的。
英文:
You may explain the differences between spring bean and object.
I also still don't understand beans in spring What exactly is the role of spring beans in spring?
Apparently, the definition that beans form the main backbone of our application is not enough.
答案1
得分: 0
在Java开发中，Spring Bean和Java对象是相关概念，它们有着略有不同的目的。最大的区别在于，Spring Bean只能在Spring框架的上下文中使用。
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Java对象：在Java编程语言中，对象是类的实例。它代表一个具体的实体，具有自己的一组属性（变量）和行为（方法）。
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Spring Bean：在Spring的上下文中，Bean是由Spring IoC（控制反转）容器管理的对象。Spring框架负责创建、初始化和管理Bean的生命周期。Bean通常是由Spring配置和管理的Java对象。
作为框架的Spring提供了一些功能，例如：
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生命周期管理：Spring Bean由Spring容器管理，处理它们的创建、初始化和销毁。另一方面，Java对象通常由程序员手动创建和管理。
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依赖注入：Spring Bean可以受益于依赖注入，允许它们从Spring容器中接收依赖项。这实现了松耦合和更容易的测试。另一方面，Java对象不具备内置的依赖注入支持。
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配置：Spring Bean通常在XML或基于Java的配置文件中（我最常使用的方式）中定义和配置，指定它们的属性、依赖项和其他设置。Java对象通常在Java代码中直接实例化和配置。
英文:
In Java development, a Spring Bean and a Java Object are related concepts and they have somewhat different purposes. The biggest difference is, that Spring Beans can only be used in the context of the Spring Framework.
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Java Object: In the Java programming language, an object is an instance of a class. It represents a specific entity with its own set of properties (variables) and behaviors (methods).
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Spring Bean: In the context of Spring, a bean is an object that is managed by the Spring IoC (Inversion of Control) container. The Spring framework is responsible for creating, initializing, and managing the lifecycle of beans. Beans are typically Java objects that are configured and managed by Spring.
Spring as Framework offers some functions, such as:
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Lifecycle management: Spring Beans are managed by the Spring container, which handles their creation, initialization, and destruction. Java Objects, on the other hand, are typically created and managed by the programmer manually.
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Dependency injection: Spring Beans can benefit from dependency injection, which allows them to receive dependencies from the Spring container. This enables loose coupling and easier testing. Java Objects, on the other hand, do not have built-in support for dependency injection.
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Configuration: Spring Beans are often defined and configured in XML or Java-based configuration files (what I do most), specifying their properties, dependencies, and other settings. Java Objects are typically instantiated and configured directly in Java-code.
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