java – 是否可以在Spring Framework中使用注释设置bean名称？

我有这样的豆：

@Bean
public String myBean(){
    return "My bean";
}

我想要自动装配它：

@Autowired
@Qualifier("myBean")
public void setMyBean(String myBean){
    this.myBean=myBean;
}

我需要这样的东西：

@Bean(name="myCustomBean")

是否可以使用开箱即用的bean自定义名称？如果不可能开箱即可,那么如何创建这样的bean呢？

解决方法:

您可以使用任何一个@Component注释来设置名称.
这是official doc.

@Service("myMovieLister")
public class SimpleMovieLister {
    // ...
}

这将创建一个bean,即myMovieLister,而不是simpleMovieLister.

对于JavaConfig,这适用于使用@Bean的示例.

2.2.6. Customizing bean naming

By default, JavaConfig uses a @Bean method’s name as the name of the
resulting bean. This functionality can be overridden, however, using
the BeanNamingStrategy extension point.

public class Main {
    public static void main(String[] args) {
        JavaConfigApplicationContext ctx = new JavaConfigApplicationContext();
        ctx.setBeanNamingStrategy(new CustomBeanNamingStrategy());
        ctx.addConfigClass(MyConfig.class);
        ctx.refresh();
        ctx.getBean("customBeanName");
    }
} 

============================

更新：

你问的问题已经在4.3.3春季开始了

By default, configuration classes use a @Bean method’s name as the
name of the resulting bean. This functionality can be overridden,
however, with the name attribute.

@Configuration
public class AppConfig {

    @Bean(name = "myFoo")
    public Foo foo() {
        return new Foo();
    }

}

标签：java,spring,spring-mvc,spring-annotations,spring-bean
来源： https://codeday.me/bug/20190930/1836040.html