@Aspect 切面使用示例

ゞ浴缸里的玫瑰 2023-07-09 03:26 2阅读 0赞

package wsylp.log;
    
    import org.apache.logging.log4j.LogManager;
    import org.apache.logging.log4j.Logger;
    import org.aspectj.lang.JoinPoint;
    import org.aspectj.lang.ProceedingJoinPoint;
    import org.aspectj.lang.annotation.AfterReturning;
    import org.aspectj.lang.annotation.Around;
    import org.aspectj.lang.annotation.Aspect;
    import org.aspectj.lang.annotation.Before;
    
    /**
     * 基于@Aspect的方式(java 5 的首先选择)
     * Created by wsylp on 2017/7/22.
     */
    @Aspect//切面
    public class MyLog {
    
        private static Logger logger = LogManager.getLogger(MyLog.class.getName());
    
        @Before("execution(* wsylp.service..*(..))")//定义切面
        public void logBegin(JoinPoint point) {
    
            logger.info("@Before：" + point.getSignature().getDeclaringTypeName() + "." + point
                .getSignature().getName() +" begin.");
        }
    
        @AfterReturning("execution(* wsylp.service..*(..))")//定义切面
        public void logAfter(JoinPoint point) {
    
            logger.info(
                "@AfterReturning：" + point.getSignature().getDeclaringTypeName() + "." + point
                    .getSignature().getName() +" end.");
        }
    
        @Around("execution(* wsylp.service.UserService.*(..))")//定义切面
        public void logAround(ProceedingJoinPoint point) throws Throwable {
            logger.info("@Around：环绕增强方法开始：" + point.getSignature().getDeclaringTypeName() + "." + point
                .getSignature().getName());
            point.proceed();
            logger.info("@Around：环绕增强方法结束：" + point.getSignature().getDeclaringTypeName() + "." + point
                .getSignature().getName());
    
        }
    }