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| - 而之前的三种 依赖注入(DI) 方式都是通过 XML 来生成 `MyServiceImpl` 的Bean对象，类运行时就是 Bean 对象 | ||
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| ```Java | ||
| Main函数中的例子（命名稍微改动，请变通）： |
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这个代码例子是从前面 IoC 那部分拿的吗？我没太懂想表达什么意思...
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| > 其实这里的 `MyPersonComponent` 和之前三个 "依赖注入(DI)" 的类是完全不一样的 | ||
| > 对比一下，你会发现前三种DI都是有 sayHello()方法的，而这里的 `MyPersonComponent` 只是代替了 XML 的部分工作，本身并没有 sayHello方法。 | ||
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| - 这里的 `MyPersonComponent` 用处：生成`MyServiceImpl` 的Bean对象，代替了 XML 的绝大部分工作，该类本身是和`MyServiceImpl`无关的(没有继承) |
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这段跟前面一段我大概知道你想表达是什么了，但感觉文字上可以再梳理一下，现在读起来逻辑上感觉有点乱。
前面在讲 该类本身是和MyServiceImpl无关的(没有继承)，后面说 而之前的三种 依赖注入(DI) 方式都是通过 XML 来生成，这没有逻辑上的对应性。。。
skyline75489
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Aug 1, 2019
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| ```Java | ||
| Main函数中的例子（命名稍微改动，请变通）： | ||
| 写在Main函数里（命名稍微改动，请变通）： |
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如果你把前面的类都改了名字，就能发现这段示例挺重要的
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这段跟 https://skyline75489.github.io/Heart-First-JavaWeb/7-First-Spring-Container.html 这里的最下面那段代码，不一回事吗
skyline75489
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Aug 1, 2019
source/10-Component-Scan.md
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| > 对比一下，你会发现前三种DI都是有 sayHello()方法的，而这里的 `MyPersonComponent` 只是代替了 XML 的部分工作，本身并没有 sayHello方法。 | ||
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| - 之前的三种 依赖注入(DI) 方式的实现都是： 由 Spring 容器通过 XML 来生成 `MyServiceImpl` 类的Bean对象（类本身就是 Spring 容器操作的对象） | ||
| - 而这里的 `MyPersonComponent` 类只是用来生成`MyServiceImpl` 的Bean对象，它是代替了 XML 的绝大部分工作（这个类本身和`MyServiceImpl`是没有继承关系，所以也没有 sayHello方法) |
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为什么要强调没有继承关系呢。。其实是没有任何关系啊，都不是一层层面的东西
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