package com.wlg.aspect; import java.util.Arrays; import org.aspectj.lang.JoinPoint; import org.aspectj.lang.Signature; import org.aspectj.lang.annotation.After; import org.aspectj.lang.annotation.AfterReturning; import org.aspectj.lang.annotation.AfterThrowing; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; import org.springframework.core.annotation.Order; import org.springframework.stereotype.Component; /**  * 使用Spring aop管理日誌  * @author LENOVO  */ @Order(value = 1) @Aspect @Component public class LogAspect {     //將所有的execution抽取出來 注意.*之間不能有空格     @Pointcut(value = "execution(* *.*(..))")     public void myPoint() {     };     // 第一個*表示返回型別， 第二個*表示全類名     @Before(value = "execution(public * * .*(int, int) )")     public void logStart(JoinPoint joinPoint) {         // 獲取引數列表         Object[] args = joinPoint.getArgs();         // 獲取方法簽名         Signature signature = joinPoint.getSignature();         // 獲取方法名         String name = signature.getName();         System.out.println("日誌【" + name + "】" + "開始執行" + "引數列表："                 + Arrays.asList(args));     }     @After(value = "myPoint()")     public void logEnd(JoinPoint joint) {         String name = joint.getSignature().getName();         System.out.println("日誌【" + name + "】最終執行完成");     }     @AfterReturning(value = "myPoint() )", returning = "rt")     public void logReturn(JoinPoint joinPoint, Object rt) {         String name = joinPoint.getSignature().getName();         System.out.println("日誌【" + name + "】方法正常返回" + "返回值：" + rt);     }     @AfterThrowing(value = "myPoint()", throwing = "e")     public void logException(JoinPoint joinPoint, Exception e) {         String name = joinPoint.getSignature().getName();         System.out.println("日誌【" + name + "】出現異常" + e);     } }