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Java笔记——看完这个，打通Spring难度系数-Spring资料
source link: http://blog.51cto.com/13941961/2174992
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写过java的都知道：所有的对象都必须创建；或者说：使用对象之前必须先创建。而使用ioc之后，你就可以不再手动创建对象，而是从ioc容器中直接获取对象。
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