自定义注解的例子

xml里面的配置
<aop:aspectj-autoproxy/>
<context:component-scan base-package="com.xx"/>


java代码
@Aspect
@Component
public class LogAdvice{

   @After("@annotation(testLog)")
   public void testLog(JoinPoint joinPoint,TestLog testLog)throws Exception{
      System.out.println(testLog.remark());
   }
}



@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface TestLog{
 String remark() default "";
}

@Service
public class test{
@TestLog(remark="测试")
public void testService(String str)throws Exception{
//TODO
}
}