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玩转spring之Factory（工厂模式）
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<h4 id="Factory模式"><a href="#Factory模式" class="headerlink" title="Factory模式"></a>Factory模式</h4><p>1.工厂模式也是我们编程中使用的最广泛的设计模式之一，工厂模式主要用来实例化对象，代替new操作。 </p>
<a id="more"></a>
<h4 id="工厂模式的简单实现"><a href="#工厂模式的简单实现" class="headerlink" title="工厂模式的简单实现"></a>工厂模式的简单实现</h4><p>1.举这样一个例子，假如有一个大老板，需要买一辆车，但是他并不知道现在市面上有些什么车，他来到汽车销售中心，对招待说，我有这么些钱，我要买车，你看这办吧，这个时候招待就会根据老板具体有多少钱而向他销售不同价位款式的汽车。下面我们用代码来模拟 </p>
<p>2.首先，定义一个接口Car </p>
<p><img src="/images/20191028-142927.png" alt></p>
<p>3.创建多个Car接口的实现类 </p>
<p><img src="/images/20191028-143016.png" alt></p>
<p>4.实现CarFactory </p>
<p><img src="/images/20191028-143135.png" alt></p>
<p>5.main方法测试 </p>
<p><img src="/images/20191028-143210.png" alt></p>
<p>6.在该工厂模式的简单实现中，可以发现工厂模式使用时的一些特点 </p>
<ul>
<li>在编码时不能预见需要创建哪一种类的实例 </li>
<li>一个类使用它的子类来创建对象 </li>
<li>开发人员不希望将创建了哪个类的实例以及如何创建实例的信息暴露给外部程序 </li>
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<li><strong>本文标题：</strong><a href="https://blog.visutech.cn/452468995.html">玩转spring之Factory（工厂模式）</a></li>
<li><strong>本文作者：</strong><a href="https://blog.visutech.cn">程振奇 | smallodd</a></li>
<li><strong>本文链接：</strong><a href="https://blog.visutech.cn/452468995.html">https://blog.visutech.cn/452468995.html</a></li>
<li><strong>发布时间：</strong>2014-02-26</li>
<li><strong>版权声明：</strong>本博客所有文章除特别声明外，均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/deed.zh" rel="external nofollow" target="_blank">CC BY-NC-SA 4.0</a> 许可协议。转载请注明出处！
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