AutowireCapableBeanFactory/README.md接口源码分析
xuchengsheng
parent
b2f6dfa19c
commit
ccf6b84d83
14
README.md
14
README.md
|
|
@ -71,6 +71,7 @@
|
|||
- [`ResourcePatternResolver`](spring-resources/spring-resource-resourcePatternResolver/README.md)：资源模式解析接口，用于灵活加载应用中的多种资源。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- [`DocumentLoader`](spring-resources/spring-resource-documentLoader/README.md)：XML文档加载解析核心接口，支持后台自动配置Spring应用。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- 元数据与过滤
|
||||
|
||||
- [`MetadataReader`](spring-metadata/spring-metadata-metadataReader/README.md)：类元数据获取核心，支持组件扫描、条件化注解、AOP等高级功能。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
|
@ -80,6 +81,7 @@
|
|||
- [`TypeFilter`](spring-metadata/spring-metadata-typeFilter/README.md)：组件扫描时自定义类筛选，支持复杂条件和精确过滤。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- [`Condition`](spring-metadata/spring-metadata-condition/README.md)：条件判断，决定Bean创建和配置的灵活机制。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- Bean定义与注册
|
||||
|
||||
- [`BeanDefinition`](spring-beans/spring-bean-beanDefinition/README.md)：详细描述Bean，支持依赖注入、AOP、作用域控制等核心功能。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
|
@ -87,6 +89,7 @@
|
|||
- [`BeanDefinitionHolder`](spring-beans/spring-bean-beanDefinitionHolder/README.md)：管理和操作BeanDefinition的关键类。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- [`BeanDefinitionRegistry`](spring-beans/spring-bean-beanDefinitionRegistry/README.md)：Bean定义注册管理关键接口，处理Bean元数据。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- Bean定义读取与扫描
|
||||
|
||||
- [`XmlBeanDefinitionReader`](spring-beans/spring-bean-xmlBeanDefinitionReader/README.md)：加载解析XML配置，构建IOC容器，注册Bean定义。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF6347"></img>
|
||||
|
|
@ -115,6 +118,7 @@
|
|||
- `ImportSelector`：运行时动态导入配置类，实现条件选择和灵活配置。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- `DeferredImportSelector`：运行时动态导入配置，支持条件选择和按组别延迟加载。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- Bean工厂
|
||||
|
||||
- `BeanFactory`：Spring的核心接口，提供对Bean的配置、创建、管理的基本功能。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
|
@ -124,11 +128,16 @@
|
|||
- `HierarchicalBeanFactory`：支持父子容器关系，实现Bean定义的层次结构。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- `ConfigurableBeanFactory`：提供对BeanFactory配置的扩展，如属性编辑器、作用域等。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
+ [`AutowireCapableBeanFactory`](spring-factory/spring-factory-autowireCapableBeanFactory/README.md)：Bean创建、初始化、注入、销毁的核心功能接口。
|
||||
+ `ConfigurableListableBeanFactory`：支持配置和列表操作的可配置Bean工厂接口。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- 基于Java的配置
|
||||
|
||||
- `ConfigurationClassPostProcessor`：处理@Configuration注解，关键容器启动后置处理器。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- `ConfigurationClassParser`：解析@Configuration，提取Config信息，支持@Bean和条件化配置。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- 容器上下文
|
||||
|
||||
- [`ClassPathXmlApplicationContext`](spring-context/spring-context-classPathXmlApplicationContext/README.md)：类路径（classpath）加载 XML 配置文件的上下文。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
|
@ -136,6 +145,7 @@
|
|||
- [`AnnotationConfigApplicationContext`](spring-context/spring-context-annotationConfigApplicationContext/README.md)：注解配置类中加载配置信息的上下文。<img src="https://img.shields.io/badge/Level-%E7%AE%80%E5%8D%95-0099ff"></img>
|
||||
|
||||
- `GenericApplicationContext`：支持多种配置方式，XML、注解、手动注册的上下文。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img>
|
||||
|
||||
- Bean生命周期
|
||||
|
||||
- [`Bean的定义注册过程`](spring-core/spring-core-registerBeanDefinition)：加载与解析配置文件，注册解析Bean定义，类名、作用域、属性等。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
|
@ -145,6 +155,7 @@
|
|||
- [`Bean的依赖解析过程`](spring-core/spring-core-resolveDependency/README.md)：声明依赖，查找依赖，注入依赖，处理循环依赖，延迟依赖解析。<img src="https://img.shields.io/badge/Level-%E5%9B%B0%E9%9A%BE-%23FF3030"></img>
|
||||
|
||||
- [`Bean的销毁过程`](spring-core/spring-core-destroyBean/README.md)：销毁方法调用，接口回调，后处理清理，通知触发，GC回收资源。<img src="https://img.shields.io/badge/Level-%E5%9B%B0%E9%9A%BE-%23FF3030"></img>
|
||||
|
||||
- Bean初始化与扩展点
|
||||
|
||||
- [`InitializingBean`](spring-interface/spring-interface-initializingBean/README.md)：提供Bean初始化时执行自定义逻辑的接口。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
|
@ -166,6 +177,7 @@
|
|||
- [`SmartInstantiationAwareBeanPostProcessor`](spring-interface/spring-interface-smartInstantiationAwareBeanPostProcessor/README.md)：提供更智能的实例化控制。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
||||
- [`SmartInitializingSingleton`](spring-interface/spring-interface-smartInitializingSingleton/README.md)：在所有单例Bean初始化完成后，执行自定义逻辑。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
||||
- Aware接口系列
|
||||
|
||||
- [`BeanNameAware`](spring-aware/spring-aware-beanNameAware/README.md)：让Bean获取自身在容器中的名字。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
|
@ -189,6 +201,7 @@
|
|||
- [`ApplicationContextAware`](spring-aware/spring-aware-applicationContextAware/README.md)：允许Bean获取应用程序上下文。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
||||
- [`ImportAware`](spring-aware/spring-aware-importAware/README.md)：允许被导入的配置类获取导入它的类的信息。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
||||
- 核心注解
|
||||
|
||||
- [`@Configuration`](spring-annotation/spring-annotation-configuration/README.md)：声明类为配置类，定义Bean和Bean之间的依赖关系。<img src="https://img.shields.io/badge/Level-%E5%9B%B0%E9%9A%BE-%23FF3030"></img>
|
||||
|
|
@ -220,6 +233,7 @@
|
|||
- `@Indexed`： 标记Bean用于索引。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img><img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
||||
- `@Order`：指定Bean的加载顺序。<img src="https://img.shields.io/badge/%E5%8D%B3%E5%B0%86%E6%9B%B4%E6%96%B0-339933"></img><img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
||||
- JSR规范
|
||||
|
||||
- [`@Inject`](spring-jsr/spring-jsr330-inject/README.md)：JSR-330标准的依赖注入注解。<img src="https://img.shields.io/badge/Level-%E4%B8%80%E8%88%AC-%23FF8C69"></img>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,24 @@
|
|||
## AutowireCapableBeanFactory
|
||||
|
||||
- [AutowireCapableBeanFactory](#autowirecapablebeanfactory)
|
||||
- [一、基本信息](#一基本信息)
|
||||
- [二、基本描述](#二基本描述)
|
||||
- [三、主要功能](#三主要功能)
|
||||
- [四、接口源码](#四接口源码)
|
||||
- [五、主要实现](#五主要实现)
|
||||
- [五、最佳实践](#五最佳实践)
|
||||
- [createBean](#createbean)
|
||||
- [configureBean](#configurebean)
|
||||
- [autowireBean](#autowirebean)
|
||||
- [autowire](#autowire)
|
||||
- [autowireBeanProperties](#autowirebeanproperties)
|
||||
- [applyBeanPropertyValues](#applybeanpropertyvalues)
|
||||
- [initializeBean](#initializebean)
|
||||
- [destroyBean](#destroybean)
|
||||
- [resolveDependency](#resolvedependency)
|
||||
- [常见问题](#常见问题)
|
||||
|
||||
|
||||
### 一、基本信息
|
||||
|
||||
✒️ **作者** - Lex 📝 **博客** - [掘金](https://juejin.cn/user/4251135018533068/posts) 📚 **源码地址** - [github](https://github.com/xuchengsheng/spring-reading)
|
||||
|
|
@ -336,6 +355,30 @@ public interface AutowireCapableBeanFactory extends BeanFactory {
|
|||
}
|
||||
```
|
||||
|
||||
### 五、主要实现
|
||||
|
||||
+ `AbstractAutowireCapableBeanFactory`
|
||||
+ `AbstractAutowireCapableBeanFactory`是`AutowireCapableBeanFactory`接口的抽象实现，为Spring框架提供了核心的Bean创建、初始化和销毁功能。它实现了`createBean`方法，支持对Bean的依赖注入、属性值应用、后置处理器的应用，以及初始化和销毁阶段的生命周期管理。
|
||||
|
||||
~~~mermaid
|
||||
classDiagram
|
||||
direction BT
|
||||
class ResourceLoader {
|
||||
<<interface>>
|
||||
}
|
||||
|
||||
class ResourcePatternResolver {
|
||||
<<interface>>
|
||||
}
|
||||
|
||||
class PathMatchingResourcePatternResolver {
|
||||
}
|
||||
|
||||
ResourcePatternResolver --|> ResourceLoader
|
||||
PathMatchingResourcePatternResolver ..|> ResourcePatternResolver
|
||||
|
||||
~~~
|
||||
|
||||
### 五、最佳实践
|
||||
|
||||
使用`AnnotationConfigApplicationContext`创建了Spring应用程序上下文，手动注册了一个后置处理器（`MyBeanPostProcessor`）与一个单例Bean（`MyRepository`），最后获取了`AutowireCapableBeanFactory`。
|
||||
|
|
@ -519,3 +562,116 @@ private static void autowireBeanProperties(AutowireCapableBeanFactory beanFactor
|
|||
调用autowireBeanProperties后,MyService = MyService{myRepository=com.xcs.spring.repository.MyRepository@4145bad8, javaHome='D:\install\jdk-11'}
|
||||
```
|
||||
|
||||
#### applyBeanPropertyValues
|
||||
|
||||
使用`AutowireCapableBeanFactory`的`applyBeanPropertyValues`方法，手动为`MyService`类型的Bean配置自定义属性值。首先，创建了一个`PropertyValue`实例，表示要设置的属性名为"javaHome"，属性值为"这里是我自定义的javaHome路径配置"。接着，通过`MutablePropertyValues`构建了属性值的集合，并将之前创建的`PropertyValue`添加到集合中。然后，创建了一个`RootBeanDefinition`，并将属性值集合设置到该Bean定义中。最后，通过`registerBeanDefinition`方法注册了一个名为 "myService" 的Bean定义。在调用`applyBeanPropertyValues`方法之前，创建了一个新的`MyService`实例，并输出了其初始状态。然后，调用`applyBeanPropertyValues`方法后，输出了`applyBeanPropertyValues`后的`MyService`实例信息，观察是否成功应用了自定义的属性值。
|
||||
|
||||
```java
|
||||
private static void applyBeanPropertyValues(AutowireCapableBeanFactory beanFactory) {
|
||||
PropertyValue propertyValue = new PropertyValue("javaHome", "这里是我自定义的javaHome路径配置");
|
||||
MutablePropertyValues propertyValues = new MutablePropertyValues();
|
||||
propertyValues.addPropertyValue(propertyValue);
|
||||
|
||||
RootBeanDefinition rootBeanDefinition = new RootBeanDefinition(MyService.class);
|
||||
rootBeanDefinition.setPropertyValues(propertyValues);
|
||||
// 配置一个RootBeanDefinition
|
||||
((DefaultListableBeanFactory) beanFactory).registerBeanDefinition("myService", rootBeanDefinition);
|
||||
|
||||
MyService myService = new MyService();
|
||||
System.out.println("调用applyBeanPropertyValues前,MyService = " + myService);
|
||||
beanFactory.applyBeanPropertyValues(myService, "myService");
|
||||
System.out.println("调用applyBeanPropertyValues后,MyService = " + myService);
|
||||
}
|
||||
```
|
||||
|
||||
运行结果发现，调用`applyBeanPropertyValues`方法后，并没有触发`BeanNameAware`接口中的`setBeanName`方法、`InitializingBean`接口中的`afterPropertiesSet`方法，以及自定义的`MyBeanPostProcessor`后置处理器的相应回调方法。这是因为`applyBeanPropertyValues`方法主要专注于属性值的应用，而不涉及完整的Bean初始化和生命周期管理。最终的运行结果显示`myRepository`属性为null，表明`applyBeanPropertyValues`方法并没有进行依赖注入。
|
||||
|
||||
```java
|
||||
调用applyBeanPropertyValues前,MyService = MyService{myRepository=null, javaHome='null'}
|
||||
调用applyBeanPropertyValues后,MyService = MyService{myRepository=null, javaHome='这里是我自定义的javaHome路径配置'}
|
||||
```
|
||||
|
||||
#### initializeBean
|
||||
|
||||
使用`AutowireCapableBeanFactory`的`initializeBean`方法，手动初始化`MyService`类型的Bean。首先，创建了一个新的`MyService`实例，并输出了其初始状态。然后，通过`initializeBean`方法对该实例进行初始化，指定了Bean的名称为 "myService"。在调用方法之后，输出了`initializeBean`后的`MyService`实例信息，观察是否成功进行了初始化。
|
||||
|
||||
```java
|
||||
private static void initializeBean(AutowireCapableBeanFactory beanFactory) {
|
||||
MyService myService = new MyService();
|
||||
System.out.println("调用initializeBean前,MyService = " + myService);
|
||||
beanFactory.initializeBean(myService, "myService");
|
||||
System.out.println("调用initializeBean前,MyService = " + myService);
|
||||
}
|
||||
```
|
||||
|
||||
运行结果发现，`myRepository`和`javaHome`的值都显示为`null`，这是因为在调用`initializeBean`方法时，并没有提供属性值的注入。`initializeBean`方法主要用于手动触发Bean的初始化阶段，包括调用`afterPropertiesSet`方法和应用Bean后置处理器，但它并不负责属性的注入。
|
||||
|
||||
```java
|
||||
调用initializeBean前,MyService = MyService{myRepository=null, javaHome='null'}
|
||||
MyService.setBeanName方法被调用了
|
||||
MyBeanPostProcessor#postProcessBeforeInitialization方法被调用了,Bean名称 = myService
|
||||
MyService.afterPropertiesSet方法被调用了
|
||||
MyBeanPostProcessor#postProcessBeforeInitialization方法被调用了,Bean名称 = myService
|
||||
调用initializeBean前,MyService = MyService{myRepository=null, javaHome='null'}
|
||||
```
|
||||
|
||||
#### destroyBean
|
||||
|
||||
使用`AutowireCapableBeanFactory`的`destroyBean`方法，手动销毁（destroy）一个`MyService`类型的Bean实例。通过传递新创建的`MyService`实例作为参数，调用了`destroyBean`方法。
|
||||
|
||||
```java
|
||||
private static void destroyBean(AutowireCapableBeanFactory beanFactory) {
|
||||
beanFactory.destroyBean(new MyService());
|
||||
}
|
||||
```
|
||||
|
||||
运行结果发现，在调用`destroyBean`方法后，`MyService`实例的销毁方法 `destroy` 被成功调用。这表明`destroyBean`方法有效地触发了Bean的销毁阶段，执行了实现了`DisposableBean`接口的`destroy`方法。
|
||||
|
||||
```java
|
||||
MyService.destroy方法被调用了
|
||||
```
|
||||
|
||||
#### resolveDependency
|
||||
|
||||
使用`AutowireCapableBeanFactory`的`resolveDependency`方法，手动解析一个依赖关系。通过创建一个`DependencyDescriptor`对象，表示`MyService`类中的`myRepository`属性，然后调用`resolveDependency`方法，尝试解析这个依赖关系。最后，输出解析得到的依赖对象。
|
||||
|
||||
```java
|
||||
private static void resolveDependency(AutowireCapableBeanFactory beanFactory) {
|
||||
try {
|
||||
DependencyDescriptor dependencyDescriptor = new DependencyDescriptor(MyService.class.getDeclaredField("myRepository"), false);
|
||||
Object resolveDependency = beanFactory.resolveDependency(dependencyDescriptor, "myRepository");
|
||||
System.out.println("resolveDependency = " + resolveDependency);
|
||||
} catch (NoSuchFieldException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
运行结果发现，通过调用`resolveDependency`方法成功解析了依赖关系，将`myRepository`属性的依赖解析为`MyRepository`的实例。
|
||||
|
||||
```java
|
||||
resolveDependency = com.xcs.spring.repository.MyRepository@37654521
|
||||
```
|
||||
|
||||
### 常见问题
|
||||
|
||||
1. **createBean() 和 configureBean()**
|
||||
- `createBean()` 用于创建Bean的实例，即进行Bean的实例化。它是Bean创建过程中的第一步。
|
||||
- `configureBean()` 则是在Bean实例创建之后，进行进一步的配置，如应用BeanPostProcessors等。这是在Bean实例化后、初始化之前的阶段。
|
||||
2. **autowireBean() 和 autowire()**
|
||||
- `autowireBean()` 用于对现有的Bean实例进行自动装配，将依赖注入到Bean中。
|
||||
- `autowire()` 是在创建Bean实例时使用指定的自动装配模式，用于生成新的Bean实例。
|
||||
3. **autowireBeanProperties() 和 applyBeanPropertyValues()**
|
||||
- `autowireBeanProperties()` 主要用于对Bean实例的属性进行自动装配。
|
||||
- `applyBeanPropertyValues()` 则是将属性值应用到Bean实例，包括在XML或注解中配置的属性值。
|
||||
4. **initializeBean()、applyBeanPostProcessorsBeforeInitialization() 和 applyBeanPostProcessorsAfterInitialization()**
|
||||
- `initializeBean()` 是Bean生命周期中的最后一步，包括初始化和应用BeanPostProcessors等。
|
||||
- `applyBeanPostProcessorsBeforeInitialization()` 用于在初始化之前应用BeanPostProcessors。
|
||||
- `applyBeanPostProcessorsAfterInitialization()` 用于在初始化之后应用BeanPostProcessors。
|
||||
5. **destroyBean()**
|
||||
- `destroyBean()` 用于销毁给定的Bean实例，释放资源等。通常在容器关闭时调用。
|
||||
6. **resolveNamedBean() 和 resolveBeanByName()**
|
||||
- `resolveNamedBean()` 主要用于解析指定名称的Bean并返回Bean实例。
|
||||
- `resolveBeanByName()` 则是解析指定名称的Bean定义，而不是直接返回Bean实例。
|
||||
7. **resolveDependency()**
|
||||
- `resolveDependency()` 主要用于解析Bean之间的依赖关系，特别是在自动装配时。在`AbstractAutowireCapableBeanFactory`的`doResolveDependency()`方法中调用。
|
||||
|
|
@ -46,17 +46,11 @@ public class AutowireCapableBeanFactoryDemo {
|
|||
// autowireBeanProperties(beanFactory);
|
||||
|
||||
// 将属性值应用到给定的Bean实例
|
||||
applyBeanPropertyValues(beanFactory);
|
||||
// applyBeanPropertyValues(beanFactory);
|
||||
|
||||
// 初始化给定的Bean实例
|
||||
// initializeBean(beanFactory);
|
||||
|
||||
// 在初始化之前应用 Bean 后处理器
|
||||
// applyBeanPostProcessorsBeforeInitialization(beanFactory);
|
||||
|
||||
// 初始化后应用 Bean 后处理器
|
||||
// applyBeanPostProcessorsAfterInitialization(beanFactory);
|
||||
|
||||
// 销毁给定的Bean实例
|
||||
// destroyBean(beanFactory);
|
||||
|
||||
|
|
@ -121,29 +115,12 @@ public class AutowireCapableBeanFactoryDemo {
|
|||
System.out.println("调用initializeBean前,MyService = " + myService);
|
||||
}
|
||||
|
||||
private static void applyBeanPostProcessorsBeforeInitialization(AutowireCapableBeanFactory beanFactory) {
|
||||
MyService myService = new MyService();
|
||||
System.out.println("调用applyBeanPostProcessorsBeforeInitialization前,MyService = " + myService);
|
||||
beanFactory.applyBeanPostProcessorsBeforeInitialization(myService, "myService");
|
||||
System.out.println("调用applyBeanPostProcessorsBeforeInitialization后,MyService = " + myService);
|
||||
}
|
||||
|
||||
private static void applyBeanPostProcessorsAfterInitialization(AutowireCapableBeanFactory beanFactory) {
|
||||
MyService myService = new MyService();
|
||||
System.out.println("调用applyBeanPostProcessorsAfterInitialization前,MyService = " + myService);
|
||||
beanFactory.applyBeanPostProcessorsAfterInitialization(myService, "myService");
|
||||
System.out.println("调用applyBeanPostProcessorsAfterInitialization后,MyService = " + myService);
|
||||
}
|
||||
|
||||
private static void destroyBean(AutowireCapableBeanFactory beanFactory) {
|
||||
beanFactory.destroyBean(new MyService());
|
||||
}
|
||||
|
||||
private static void resolveDependency(AutowireCapableBeanFactory beanFactory) {
|
||||
try {
|
||||
// 配置一个MyRepository，用于被依赖对象注入使用
|
||||
((DefaultListableBeanFactory) beanFactory).registerSingleton("myRepository", new MyRepository());
|
||||
|
||||
DependencyDescriptor dependencyDescriptor = new DependencyDescriptor(MyService.class.getDeclaredField("myRepository"), false);
|
||||
Object resolveDependency = beanFactory.resolveDependency(dependencyDescriptor, "myRepository");
|
||||
System.out.println("resolveDependency = " + resolveDependency);
|
||||
|
|
|
|||
Loading…
Reference in New Issue