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我可以请Java做点什么 每当某类方法被叫来时
原标题:Can i ask java to do something whenever a method of some class was called
  • 时间:2012-05-24 08:43:43
  •  标签:
  • java

我是新来的雅瓦人,曾经很惊讶。 所以也许这在雅瓦人中是可能的?

我有课课

class X {
      string method_a(int x) {
         String str="abc";
         return str;
      }
}

class Y {
      void before(){};
      void after(){};
}

我可以告诉爪哇在X类的“方法”之前或之后叫Y类“之前”和“之后”的方法吗?

感谢 谢谢

最佳回答

听上去你想要"http://en.wikipedia.org/wiki/Aspect-fo方向_programing" rel=“nofollow” >Aspect-ofofed productproduct 。这不是作为“正常” Java 的一部分存在的东西, 但周围有各种各样的技术来帮助它。您可能想要从开始, http://www. eclipse.org/aspectj/"rel=“nofolfollow” >AspectJ

问题回答

您所要的不是语言本身的支持,但可以通过以下框架提供,例如 Spring s Aspect Oriend Programme 模型

是的, 您可以。 它叫做“ 目标 ” ( 搜索 AspectJ ) 。 我找到了这个为您介绍的喜好世界的例子 : < a href=" http:// www.java2s.com/Code/ Java/ Spring/ AspectHelloWorldExample.htm" rel=“ nofollow” > http:// www.java2s.com/Code/ Java/Spring/AspectHelloWorldExample.htm

我不得不警告你,有些方面对于伐木和业绩追踪效果很好,但如果使用错误,则可能成为恶梦。 正如他们说的 : “ 强权带来巨大的责任 ” 。





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