@Component注解-蒲公英云

@Component注解

package org.springframework.stereotype;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/** * Indicates that an annotated class is a "component". * Such classes are considered as candidates for auto-detection * when using annotation-based configuration and classpath scanning. * * <p>Other class-level annotations may be considered as identifying * a component as well, typically a special kind of component: * e.g. the {@link Repository @Repository} annotation or AspectJ's * {@link org.aspectj.lang.annotation.Aspect @Aspect} annotation. * * @author Mark Fisher * @since 2.5 * @see Repository * @see Service * @see Controller * @see org.springframework.context.annotation.ClassPathBeanDefinitionScanner */
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface Component { 
    /** * The value may indicate a suggestion for a logical component name, * to be turned into a Spring bean in case of an autodetected component. * @return the suggested component name, if any */
    String value() default "";
}