gistfile2.txt

Simple Spring AOP Example

  import org.aopalliance.intercept.MethodInterceptor;
  import org.aopalliance.intercept.MethodInvocation;
  import org.springframework.aop.framework.ProxyFactory;
  
  public class AopTester {
  
    public interface MyInterface {
      public void doStuff();
    }
    
    public static class ThingToWrap implements MyInterface {
      public void doStuff() {
        System.out.println("Doing stuff");
      }
    }
  
    public static class MyInterceptor implements MethodInterceptor {
      public Object invoke(MethodInvocation method) throws Throwable {
        System.out.println("Before");
        try {
          return method.proceed();
        } catch (Exception e) {
          e.printStackTrace();
          return null;
        } finally {
          System.out.println("After");
        }
      }
    }
  
    public static void main(String[] args) {
      ProxyFactory proxyFactory = new ProxyFactory(new ThingToWrap());
      proxyFactory.addAdvice(new MyInterceptor());
      MyInterface proxy = (MyInterface) proxyFactory.getProxy();
      proxy.doStuff();
    }
  
  }