@SpringBootApplication注解SpringBoot深度理解(课时八)

@SpringBootApplication注解SpringBoot深度理解,理解代码原理要有深度。接下来简单的回顾上次课讲的的内容吧

第一部分回顾:SpringBoot自动配置流程:从上到下

1. @SpringBootApplication

2. @EnableAutoConfiguration

3. @Import({AutoConfigurationImportSelector.class})

4. public class AutoConfigurationImportSelector implements DeferredImportSelector, BeanClassLoaderAware, ResourceLoaderAware, BeanFactoryAware, EnvironmentAware, Ordered {}

5. List configurations = this.getCandidateConfigurations(annotationMetadata, attributes);

6. public final class SpringFactoriesLoader {
       public static final String FACTORIES_RESOURCE_LOCATION = "META-INF/spring.factories";}

7. Enumeration urls = classLoader.getResources("MET