JSP 中Spring组合注解与元注解实例详解

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import java.lang.annotation.*;
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Configuration
@ComponentScan
public @interface GroupAnnotation {
  String[] value() default {};
}

@Servicepublic class DemoService
 { 
 public void sys()
 {   System.out.println("组合注解示例"); 
 }
}

@GroupAnnotation("com.xuanwu.annotation")
public class DemoConfig {
}

public class Main {
  public static void main(String[] args) {
   AnnotationConfigApplicationContext context = new
      AnnotationConfigApplicationContext(DemoConfig.class);
   DemoService demoService = context.getBean(DemoService.class);
   demoService.sys();
  }
}