Spring component-scan

Springcomponent-scan

<context:component-scan base-package="com.xyz">
	
		<context:include-filter type="regex"
			expression="com\.xyz\.rest\.dao\..*DaoImpl" />
</context:component-scan>

Element:component-scan

Scanstheclasspathforannotatedcomponentsthatwillbeauto-registeredasSpringbeans.Bydefault,the

Spring-provided@Component,@Repository,@Service,[email protected]:

Thistagimpliestheeffectsofthe'annotation-config'tag,activating@Required,@Autowired,

@PostConstruct,@PreDestroy,@Resource,@PersistenceContextand@PersistenceUnitannotationsinthe

componentclasses,whichisusuallydesiredforautodetectedcomponents(withoutexternalconfiguration).

Turnoffthe'annotation-config'attributetodeactivatethisdefaultbehavior,forexampleinordertouse

customBeanPostProcessordefinitionsforhandlingthoseannotations.Note:Youmayuseplaceholdersin

packagepaths,butonlyresolvedagainstsystemproperties(analogoustoresourcepaths).Acomponent

scanresultsinnewbeandefinitionbeingregistered;Spring'sPropertyPlaceholderConfigurerwillapplyto

thosebeandefinitionsjustliketoregularbeandefinitions,butitwon'tapplytothecomponentscan

settingsthemselves.Seejavadocfororg.springframework.context.annotation.ComponentScanfor

informationoncode-basedalternativestobootstrappingcomponent-scanning.

ContentModel:(include-filter*,exclude-filter*)