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Note-Non original - Pumpkinor.io
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<h1>Spring中的IOC和AOP</h1>
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<h4><a id="%E6%91%98%E5%BD%95" class="anchor" aria-hidden="true"><span class="octicon octicon-link"></span></a>摘录</h4>
<p>Spring IoC 和 AOP 三个比较容易出错的点：</p>
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<li>让 Spring 容器管理对象，要考虑对象默认的 Scope 单例是否适合，对于有状态的类型，单例可能产生内存泄露问题。</li>
<li>如果要为单例的 Bean 注入 Prototype 的 Bean，绝不是仅仅修改 Scope 属性这么简单。由于单例的 Bean 在容器启动时就会完成一次性初始化。最简单的解决方案是，把 Prototype 的 Bean 设置为通过代理注入，也就是设置 proxyMode 属性为 TARGET_CLASS。</li>
<li>如果一组相同类型的 Bean 是有顺序的，需要明确使用 @Order 注解来设置顺序。你可以再回顾下，两个不同优先级切面中 @Before、@After 和 @Around 三种增强的执行顺序，是什么样的。</li>
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<span class="date">2021/10/27</span>
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