“Spring Boot 自动配置图示”的版本间的差异
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Jihongchang（讨论 | 贡献） （建立内容为“1”的新页面） |
Jihongchang（讨论 | 贡献） 小 （Jihongchang移动页面Spring Boot 加载自动配置至Spring Boot 自动配置图示） |
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| （未显示同一用户的6个中间版本） | |||
| 第1行： | 第1行： | ||
| − | + | {| class="wikitable" | |
| + | ! colspan="7" |@SpringBootApplication | ||
| + | |- | ||
| + | |@SpringBootConfiguration | ||
| + | ! colspan="5" |@EnableAutoConfiguration | ||
| + | |@ComponentScan(excludeFilters = { | ||
| + | @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class), | ||
| + | |||
| + | @Filter(type = FilterType.CUSTOM, classes = AutoConfigurationExcludeFilter.class) | ||
| + | |||
| + | }) | ||
| + | |- | ||
| + | |@Configuration | ||
| + | ! colspan="4" |@AutoConfigurationPackage | ||
| + | |@Import(AutoConfigurationImportSelector.class) | ||
| + | | | ||
| + | |- | ||
| + | | | ||
| + | |@Retention(RetentionPolicy.RUNTIME) | ||
| + | |@Documented | ||
| + | |@Inherited | ||
| + | |//给容器中导入一个组件 | ||
| + | |||
| + | @Import(AutoConfigurationPackages.Registrar.class) | ||
| + | |AutoConfigurationImportSelector.java | ||
| + | 方法 selectImports | ||
| + | |||
| + | -> 方法 getAutoConfigurationEntry | ||
| + | |||
| + | -> 方法 getCandidateConfigurations | ||
| + | |||
| + | -> SpringFactoriesLoader.loadFactoryNames | ||
| + | |||
| + | 加载所有 jar 包下 META-INF/spring.factories | ||
| + | |||
| + | 关键位置： | ||
| + | |||
| + | spring-boot-2.3.4.RELEASE.jar | ||
| + | |||
| + | spring-boot-autoconfigure-2.3.4.RELEASE.jar | ||
| + | |||
| + | 尤其是 | ||
| + | |||
| + | spring-boot-autoconfigure-2.3.4.RELEASE.jar | ||
| + | |||
| + | 的 /META-INF/spring.factories | ||
| + | |||
| + | 里面有大量自动配置类 | ||
| + | |||
| + | 最后再进行条件装配 | ||
| + | | | ||
| + | |- | ||
| + | | | ||
| + | | | ||
| + | | | ||
| + | | | ||
| + | |AutoConfigurationPackages.java | ||
| + | static class Registrar | ||
| + | |||
| + | 导入 @SpringBootApplication 注解标注类的包下的所有组件 | ||
| + | | | ||
| + | | | ||
| + | |} | ||
2023年3月1日 (三) 10:48的最新版本
| @SpringBootApplication | ||||||
|---|---|---|---|---|---|---|
| @SpringBootConfiguration | @EnableAutoConfiguration | @ComponentScan(excludeFilters = {
@Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class), @Filter(type = FilterType.CUSTOM, classes = AutoConfigurationExcludeFilter.class) }) | ||||
| @Configuration | @AutoConfigurationPackage | @Import(AutoConfigurationImportSelector.class) | ||||
| @Retention(RetentionPolicy.RUNTIME) | @Documented | @Inherited | //给容器中导入一个组件
@Import(AutoConfigurationPackages.Registrar.class) |
AutoConfigurationImportSelector.java
方法 selectImports -> 方法 getAutoConfigurationEntry -> 方法 getCandidateConfigurations -> SpringFactoriesLoader.loadFactoryNames 加载所有 jar 包下 META-INF/spring.factories 关键位置： spring-boot-2.3.4.RELEASE.jar spring-boot-autoconfigure-2.3.4.RELEASE.jar 尤其是 spring-boot-autoconfigure-2.3.4.RELEASE.jar 的 /META-INF/spring.factories 里面有大量自动配置类 最后再进行条件装配 |
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| AutoConfigurationPackages.java
static class Registrar 导入 @SpringBootApplication 注解标注类的包下的所有组件 |
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