AOP Annotation : AOP « Spring « Java
AOP Annotation
File: Main.java
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.reflect.Method;
import org.springframework.aop.Advisor;
import org.springframework.aop.AfterReturningAdvice;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.annotation.AnnotationMatchingPointcut;
public class Main {
public static void main(String[] args) {
SampleBean target = new SampleBean();
AnnotationMatchingPointcut pc = new AnnotationMatchingPointcut(null, SimpleAnnotation.class);
Advisor advisor = new DefaultPointcutAdvisor(pc, new SimpleBeforeAdvice());
ProxyFactory pf = new ProxyFactory();
pf.setTarget(target);
pf.addAdvisor(advisor);
SampleBean proxy = (SampleBean) pf.getProxy();
proxy.getName();
proxy.getHeight();
}
}
class SimpleBeforeAdvice implements MethodBeforeAdvice {
public void before(Method method, Object[] args, Object target) throws Throwable {
System.out.println("Before method " + method);
}
}
@SimpleAnnotation
class SampleBean {
@SimpleAnnotation
public String getName() {
return "AAA";
}
public void setName(String name) {
}
public int getHeight() {
return 201;
}
}
@Target( { ElementType.METHOD, ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
@interface SimpleAnnotation {
}
class AnnotationAfterAdvice implements AfterReturningAdvice {
public void afterReturning(Object returnValue, Method method, Object[] args, Object target)
throws Throwable {
System.out.print("After annotated method: " + method);
}
}
Spring-AOPAnnotation.zip( 4,746 k)