aop

Author: HelloListen

src/springinaction/Audience1.java

@@ -0,0 +1,54 @@
+package com.springinaction.springidol;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.*;
+import org.springframework.stereotype.Component;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Created by zhangbin on 16/3/19.
+ */
+@Aspect
+@Component
+public class Audience1 {
+    @Pointcut("execution(* com.springinaction.springidol.Performer.perform(..))")
+    public void performance() {
+    }
+
+//    @Before("performance()")
+//    public void takeSeats() {
+//        System.out.println("The audience is taking their seats.");
+//    }
+//
+//    @Before("performance()")
+//    public void turnOffCellPhones() {
+//        System.out.println("The audience is turning of their cellphones");
+//    }
+//
+//    @After("performance()")
+//    public void applaud() {
+//        System.out.println("CLAP CLAP CLAP CLAP CLAP");
+//    }
+//
+//    @AfterThrowing("performance()")
+//    public void demandRefund() {
+//        System.out.println("Boo! We want our money back!");
+//    }
+
+    @Around("performance()")
+    public void watchPerformance(ProceedingJoinPoint joinPoint) {
+        try {
+            System.out.println("The audience is taking their seats.");
+            System.out.println("The audience is turning off their cellphones.");
+            long start = System.currentTimeMillis();
+            joinPoint.proceed();
+            TimeUnit.MILLISECONDS.sleep(10);
+            long end = System.currentTimeMillis();
+            System.out.println("CLAP CLAP CLAP CLAP CLAP");
+            System.out.println("The performance took " + (end - start) + " milliseconds.");
+        } catch (Throwable t) {
+            System.out.println("Boo! We want out money back!");
+        }
+    }
+}