you can look at this example for a better explanation on Spring AOP – http://veerasundar.com/blog/2010/01/spring-aop-example-profiling-method-execution-time-tutorial/

Will get back to you shortly with a working solution.

Helloworld.java
—————————————-

public class HelloWorld{

static ApplicationContext ctx;
static HelloWorld helloWorld;

public void sayHello(String name){
System.out.println(“Hello ” + name);
}

public static void main(String args[]){

ApplicationContext context = new ClassPathXmlApplicationContext(“applicationContext.xml”);
helloWorld = (HelloWorld)context.getBean(“helloWorldLoggerBean”);
System.out.println(“HelloWorld:”+helloWorld);
HelloWorld hw = new HelloWorld();
hw.sayHello(“Priya”);
}
}

@Aspect
public class HelloWorldLoggerAspect{
@Pointcut(“execution(* test.*.*(..))”)
public void helloWorldMethods(){}
@Before(“helloWorldMethods()”)
@After(“helloWorldMethods()”)
public void logMethodCall(){
System.out.println(“The Hello World Method has been called.”);
}
}

application-context.xml

I’m getting a warning message in the application-context.xml.Remote location could not be loaded.

I added the Spring-context.jar in my classpath

Kindly reply .

I implemented your sample,but while configuring the application-context.xml,I’m getting

I’m getting Remote location not loaded error.

I added the Spring-context.jar in my classpath

To explain that point further, I’m quoting from Spring AOP’s documentation:

Spring AOP only supports method execution join points for Spring beans, so you can think of a pointcut as matching the execution of methods on Spring beans. A pointcut declaration has two parts: a signature comprising a name and any parameters, and a pointcut expression that determines exactly which method executions we are interested in. In the @AspectJ annotation-style of AOP, a pointcut signature is provided by a regular method definition, and the pointcut expression is indicated using the @Pointcut annotation (the method serving as the pointcut signature must have a void return type).

so that method is just a signature. It need not to have a function body!

the pointcut definition tell the Spring AOP to intercept at that point. For example, in the above definition, AOP inserts our code when ever the methods inside the com.veerasundar.aop.demo gets executed.

I hope I answered your question. Do let me know if it needs further explanation.

It was good posting, Since i am new to the springs framework i didnt understand [@Pointcut("execution(* com.veerasundar.aop.demo.*.*(..))")].

Regards,
Sri

Am familiar with struts,ejb,webservices,hibernate.please guide me in this regard

Few things I noticed in your code:

1) Have you declared the @AspectJ support in your ‘beans.xml’ file ?
2) You are creating the HelloWorld object using ‘new’ keyword.

//HelloWorld hw = new HelloWorld();//

but, you should be getting the HelloWorld instance from your spring context. eg;

factory.getBean(helloworldbean);

–

Spring applies AOP to the objects which it is managing.