1.@Import 将其它包下的类,如common包的公共配置类或公共配置参数类等,将它注入容器; 注意:@RestController、@Service、@Repository都属于@Component; 2.@Component或 @Configuration 两个注解都是将组件或配置类立即注入容器,就可以直接使用; 3.组合注解 @ConfigurationProperties(prefix = "thread.pool.executor.config", ignoreInvalidFields = true) @EnableConfigurationProperties(ThreadPoolConfigProperties.class)
@Conditional衍生注解的使用,有条件声明Bean