Spring AOP Hello World Example

In this tutorial you will learn how to configure Spring AOP advice using BeanFactory.

HelloInterface.java

package roseindia.net;

public interface HelloInterface {
	public void sayHello();

	public void greet();
}

HelloWorldImpl.java

package roseindia.net;

public class HelloWorldImpl implements HelloInterface {

	@Override
	public void greet() {
		// TODO Auto-generated method stub
		System.out.println("Have a nice Day");
	}

	@Override
	public void sayHello() {
		// TODO Auto-generated method stub
		System.out.println("Hello World");
	}

}

SimpleAdvice.java

package roseindia.net;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class SimpleAdvice implements MethodInterceptor {

	@Override
	public Object invoke(MethodInvocation methodInvocation) throws Throwable {
		// TODO Auto-generated method stub
		System.out.println("Hello");
		Object object = methodInvocation.proceed();
		System.out.println("Done.......");
		return object;
	}

}

MainClaz.java

package roseindia.net;

import org.springframework.aop.framework.ProxyFactory;

public class MainClaz {
	public static void main(String[] args) {
		HelloWorldImpl helloWorldImpl = new HelloWorldImpl();
		SimpleAdvice advice = new SimpleAdvice();
		ProxyFactory proxyFactory = new ProxyFactory();
		proxyFactory.addAdvice(advice);
		proxyFactory.setTarget(helloWorldImpl);
		HelloWorldImpl proxy = (HelloWorldImpl) proxyFactory.getProxy();
		proxy.sayHello();
		proxy.greet();
	}
}

Download this example code

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