tlias管理系统-springAOP的通知类型介绍&切入点表达式的共用抽取

springboot-aop-quickstart/src/main/java/com/inmind/aop/MyAspect1.java

@@ -0,0 +1,50 @@
+package com.inmind.aop;
+
+import lombok.extern.slf4j.Slf4j;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.*;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+@Aspect //切面类
+public class MyAspect1 {
+
+    //定义了一个可以通用的切入点表达式
+    @Pointcut("execution(* com.inmind.service.impl.DeptServiceImpl.*(..))")
+    public void pt(){};
+
+
+//    @Before("execution(* com.inmind.service.impl.DeptServiceImpl.*(..))")
+    @Before("pt()")
+    public void before(){
+        log.info("before ...");
+    }
+
+//    @Around("execution(* com.inmind.service.impl.DeptServiceImpl.*(..))")
+    @Around("pt()")
+    public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
+        log.info("around before ...");
+
+        //调用目标对象的原始方法执行
+        Object result = joinPoint.proceed();
+
+        log.info("around after ...");
+        return result;//环绕通知一定要返回原始方法的执行结果！！！！
+    }
+
+    @After("pt()")
+    public void after(){
+        log.info("after ...");
+    }
+
+    @AfterReturning("pt()")
+    public void afterReturning(){
+        log.info("afterReturning ...");
+    }
+
+    @AfterThrowing("pt()")
+    public void afterThrowing(){
+        log.info("afterThrowing ...");
+    }
+}

springboot-aop-quickstart/src/main/java/com/inmind/aop/TimeAspect.java

@@ -11,7 +11,8 @@ import org.springframework.stereotype.Component;
 @Slf4j
 public class TimeAspect {
 
-    @Around("execution(* com.inmind.service.*.*(..))")//表示AOP作用于com.inmind.service下的所有的类中所有的方法，参数是0或多个
+//    @Around("execution(* com.inmind.service.*.*(..))")//表示AOP作用于com.inmind.service下的所有的类中所有的方法，参数是0或多个
+    @Around("com.inmind.aop.MyAspect1.pt()")
     public Object recordTime(ProceedingJoinPoint joinPoint) throws Throwable {
         //1.记录开始时间
         long begin = System.currentTimeMillis();

springboot-aop-quickstart/src/main/java/com/inmind/service/impl/DeptServiceImpl.java

@@ -1,6 +1,5 @@
 package com.inmind.service.impl;
 
-import com.inmind.aop.MyLog;
 import com.inmind.mapper.DeptMapper;
 import com.inmind.pojo.Dept;
 import com.inmind.service.DeptService;
@@ -19,14 +18,12 @@ public class DeptServiceImpl implements DeptService {
     private DeptMapper deptMapper;
 
     @Override
-    @MyLog
     public List<Dept> list() {
         List<Dept> deptList = deptMapper.list();
         return deptList;
     }
 
     @Override
-    @MyLog
     public void delete(Integer id) {
         //1. 删除部门
         deptMapper.delete(id);
@@ -41,7 +38,7 @@ public class DeptServiceImpl implements DeptService {
 
     @Override
     public Dept getById(Integer id) {
-//        int i = 1/0;
+        int i = 1/0;
         return deptMapper.getById(id);
     }