java 哪个是 CDI @Produces 注释的 Spring 等价物？
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Which is the Spring equivalent for the CDI @Produces annotation?
提问by Renato Dinhani
When I was working with CDI, I could use the @Producesannotation to create a producer method to be called to choose which bean that implemented an interface would be injected by the @Injectannotation .
当我使用 CDI 时，我可以使用@Produces注解创建一个生产者方法来调用来选择哪个实现了接口的 bean 将被@Inject注解注入。
Now I am working with Spring, but I didn't find anything similar. What I need to use to achieve the same result I had with the @Producesannotation in CDI when I use the @Autowiredannotation?
现在我正在使用 Spring，但我没有发现任何类似的东西。@Produces当我使用@Autowired注释时，我需要使用什么来实现与CDI 中的注释相同的结果？
回答by Luiggi Mendoza
You're looking for @Bean:
您正在寻找@Bean：
@Bean is a method-level annotation and a direct analog of the XML
<bean/>element. The annotation supports most of the attributes offered by<bean/>, such as: init-method, destroy-method, autowiring, lazy-init, dependency-check, depends-on and scope.
@Bean 是一个方法级的注解，是 XML
<bean/>元素的直接模拟。该注解支持 提供的大部分属性<bean/>，例如：init-method、destroy-method、autowiring、lazy-init、dependency-check、depends-on 和 scope。
Example (taken from link above):
示例（取自上面的链接）：
@Configuration
public class AppConfig {
//similar to @Produces CDI annotation
@Bean
public TransferService transferService() {
return new TransferServiceImpl();
}
}
I suggest you to pay a read to this: Spring DI and CDI comparative study
我建议您阅读一下：Spring DI 和 CDI 比较研究
