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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                spring新的支持java配置的注解:類注解`@Configuration(org.springframework.context.annotation.Configuration)`,和方法注解`@Bean(org.springframework.context.annotation.Bean)`. `@Bean`注解是spring容器通過方法來實例化對象.類型xml配置的`<bean/>`. `@Bean`注解可以用在任何`@Component`類中,但更多還是用在`@Configuration`的bean中. 注解 `@Configuration`主要作用就是定義bean的.通過方法注解`@Bean`定義依賴的bean.看起來如下: ~~~ @Configuration public class AppConfig { @Bean public MyService myService() { return new MyServiceImpl(); } } ~~~ 上面的`AppConfig`類,等同于下面的xml配置 ~~~ <beans> <bean id="myService" class="com.acme.services.MyServiceImpl"/> </beans> ~~~ > 如果`@Bean`沒有在`@Configuration`中使用,則不能作為依賴注入,最多算是工廠方法獲取bean的定義,
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