springboot学习（1）-SpringBootApplication

 @SpringBootApplication	 //springboot主程序

@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) })

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@SpringBootConfiguration

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Configuration

---

@EnableAutoConfiguration

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

@Import(AutoConfigurationPackages.Registrar.class)

AutoConfigurationImportSelector

使用idea等工具快速建立的springboot项目，其结构大致如下：
projectname
src
main
java
resources
static
template
application.properties
test
java
resources
static
template
application.properties