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1. 1 package soundsystem; 2 3 public class SgtPeppers implements CompactDisc { 4 5 private String title = "Sgt. Pepper's Lonely Hearts Club Band"; 6 p 阅读全文
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spring的bean默认是单例，加载容器是会被化，spring会拦截其他再次请求bean的操作，返回spring已经创建好的bean. It appears that the CompactDisc is provided by calling sgtPeppers , but that’s no 阅读全文
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1. package soundsystem; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuratio 阅读全文
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一、@ComponentScan 1. @Configuration //说明此类是配置文件 @ComponentScan //开启扫描，会扫描当前类的包及其子包 public class CDPlayerConfig { } 2. @ComponentScan(basePackages={"sou 阅读全文
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1. 1 package soundsystem; 2 import org.springframework.context.annotation.ComponentScan; 3 import org.springframework.context.annotation.Configuration 阅读全文
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一、 1. As you can see, a bean factory performs several setup steps before a bean is ready touse. Let’s break down figure 1.5 in more detail:1 Spring in 阅读全文
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一、 1. 1 package chapter01.sia.knights.config; 2 3 import org.springframework.context.annotation.Bean; 4 import org.springframework.context.annotation. 阅读全文
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一、目标 要在BraveKnight调用embarkOnQuest()前后各做一些处理(调用Minstrel的方法) 二、 1.minstrel.xml 1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.sprin 阅读全文
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一、 1.knight.xml 1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2 阅读全文
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1.Spring’s fundamental mission: Spring simplifies Java development. 2.To back up its attack on Java complexity, Spring employs four key strategies: 阅读全文