@Around method has to take parameter i.e.
ProceedingJoinPoint
pjp.proceed(); // this is place where actual method
execution happens
@Around("allGetters()")
public Object
myAroundAdvice(ProceedingJoinPoint pjp){
Object
returnValue = null;
try {
System.out.println("Before
Advice");
returnValue
= pjp.proceed();
System.out.println("After
Returning");
} catch (Throwable e) {
System.out.println("AfterThrowing");
} // this is
place where actual method execution happens
System.out.println("After
Finally");
return returnValue;
}
AopMain.java
package org.yash.watertechsol;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.yash.watertechsol.service.ShapeService;
public class AopMain {
public static void main(String
args[]){
ApplicationContext
ctx = new ClassPathXmlApplicationContext("spring.xml");
ShapeService
shapeService = ctx.getBean("shapeService", ShapeService.class);
shapeService.getCircle();
}
}
LoggingAspect.java
package org.yash.watertechsol.aspect;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.yash.watertechsol.model.Circle;
@Aspect
public class LoggingAspect {
@Before("allCicleMethods()")
public
void LoggingAdvice(JoinPoint joinPoint){
}
@AfterReturning(pointcut="args(name)",
returning="returnString")
public
void sringArgumentMethods(String name, String returnString){
System.out.println("A
method that takes string argument has been called. The value is: " + name
+"The out value is :"+returnString);
}
@AfterThrowing(pointcut="args(name)",
throwing="ex")
public
void exceptionAdvice(String name, Exception ex){
System.out.println("An
exception has been thrown " + ex);
}
@Around("allGetters()")
public
Object myAroundAdvice(ProceedingJoinPoint pjp){
Object
returnValue = null;
try
{
System.out.println("Before
Advice");
returnValue
= pjp.proceed();
System.out.println("After
Returning");
}
catch (Throwable e) {
System.out.println("AfterThrowing");
}
// this is place where actual method execution happens
System.out.println("After
Finally");
return
returnValue;
}
@Pointcut("execution(*
get*())")
public
void allGetters(){}
@Pointcut("within(org.yash.watertechsol.model.Circle)")
public
void allCicleMethods(){}
}
ShapeService.java
package org.yash.watertechsol.service;
import org.yash.watertechsol.model.Circle;
import org.yash.watertechsol.model.Triangle;
public class ShapeService {
private
Triangle triangle;
private
Circle circle;
public
Triangle getTriangle() {
return
triangle;
}
public
void setTriangle(Triangle triangle) {
this.triangle
= triangle;
}
public
Circle getCircle() {
return
circle;
}
public
void setCircle(Circle circle) {
this.circle
= circle;
}
}
Triangle.java
package org.yash.watertechsol.model;
public class Triangle {
private String name;
public void setName(String
name) {
this.name = name;
}
public String
getName() {
return name;
}
}
Circle.java
package org.yash.watertechsol.model;
public class Circle {
private String name;
public String getName() {
return name;
}
public void setName(String
name) {
this.name = name;
System.out.println("Circle
Setter is called");
throw(new
RuntimeException());
}
public String
setNameandReturn(String name) {
this.name = name;
System.out.println("Circle
Setter is called");
return name;
}
}
spring.xml
<?xml
version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<aop:aspectj-autoproxy />
<bean id="triangle"
class="org.yash.watertechsol.model.Triangle">
<property name="name"
value="Triangle Name"></property>
</bean>
<bean id="circle"
class="org.yash.watertechsol.model.Circle">
</bean>
<bean id="shapeService"
class="org.yash.watertechsol.service.ShapeService"
autowire="byName"/>
<bean id="loggingAspect"
class="org.yash.watertechsol.aspect.LoggingAspect"/>
</beans>
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