public class Target {
      public void method() {
          System.out.println("Target running....");
      }
  }

  Target target = new Target(); //创建目标对象
  Enhancer enhancer = new Enhancer();   //创建增强器
  enhancer.setSuperclass(Target.class); //设置父类
  enhancer.setCallback(new MethodInterceptor() { //设置回调
      @Override
      public Object intercept(Object o, Method method, Object[] objects, 
      MethodProxy methodProxy) throws Throwable {
          System.out.println("前置代码增强....");
          Object invoke = method.invoke(target, objects);
          System.out.println("后置代码增强....");
          return invoke;
      }
  });
  Target proxy = (Target) enhancer.create(); //创建代理对象

  //测试,当调用接口的任何方法时,代理对象的代码都无序修改
  proxy.method();

  @AfterReturning(value="execution(* com.xiaozhi.annotation.*.*(..))")
  public void afterRetruning(){
    System.out.println("后置通知");
  }