Springboot核心篇01

@SpringBootApplication //是SpringBoot的配置类
public class SpringbootVueApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootVueApplication.class, args);
    }

}

SpringbootApplication所包含的配置信息：

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@SpringBootConfiguration
@EnableAutoConfiguration
@ComponentScan(excludeFilters = { @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class),
        @Filter(type = FilterType.CUSTOM, classes = AutoConfigurationExcludeFilter.class) })
public @interface SpringBootApplication {

@EnableAutoConfiguration：开启自动配置功能

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@AutoConfigurationPackage
@Import(AutoConfigurationImportSelector.class)
public @interface EnableAutoConfiguration {

@AutoConfigurationPackage：自动配置包，将主配置类（@SpringBootApplication ）所在的包以及所有的自保里面的组件放在容器中，自动匹配值类就生效，帮我们进行自动配置工作。

J2EE的整体整合方案和自动配置都在