Spring Bean 的别名

小灰灰 2022-11-04 11:11 158阅读 0赞

Spring IoC 容器中指定别名的方式：

*  xml <bean> name 属性使用 空格、英文逗号(,)、英文分号(;) 分隔
 *  <alias name="user1" alias="user5"/> 指定

示例代码：

spring xml 配置

测试代码：

/**
     * 测试 Bean 的别名
     * @author ConstXiong
     */
    @Configuration
    public class Test {
    	
    	public static void main(String[] args) {
    		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("/META-INF/spring-bean-name-alias.xml");
    		User user1 = context.getBean("user1", User.class);
    		User user2 = context.getBean("user2", User.class);
    		User user3 = context.getBean("user3", User.class);
    		User user4 = context.getBean("user4", User.class);
    		User user5 = context.getBean("user5", User.class);
    		User user6 = context.getBean("user6", User.class);
    		User user7 = context.getBean("user7", User.class);
    		System.out.println("user1 == user2 ? " + (user1 == user2));
    		System.out.println("user1 == user3 ? " + (user1 == user3));
    		System.out.println("user1 == user4 ? " + (user1 == user4));
    		System.out.println("user1 == user5 ? " + (user1 == user5));
    		System.out.println("user6 == user7 ? " + (user6 == user7));
    	}
    	
    	@Bean(name= {"user6","user7"})
    	User getUer() {
    		User user = new User();
    		return user;
    	}
    
    }

[完整代码：014-spring-bean-name-alias][014-spring-bean-name-alias]

--------------------

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[014-spring-bean-name-alias]: https://github.com/ConstXiong/toy/tree/master/spring-study/014-spring-bean-name-alias
[Bean]: https://www.javanav.com/val/3fdc7ac3bd034a5ab7040e23f37153fa.html
[Bean 1]: https://www.javanav.com/val/59101a7207864f4aa971e5c48b592c77.html
[maven _ tomcat _ jar _ web]: https://www.javanav.com/val/b1f4691bd6ba488a80e3bdfcefdec33c.html
[Spring]: https://www.javanav.com/val/a9569837e1bc4df9aeac0e6cbf96bf06.html
[Spring _ DependencyDescriptor]: https://www.javanav.com/val/152161d266a94fd38efb365a78d8f9a3.html
[Spring _ Aware]: https://www.javanav.com/val/089b3993c8bc4dec891ea677c104c5e4.html
[Spring Bean _ Exception]: https://www.javanav.com/val/2b31b7061b3342c0a67f8d7fc7373ed3.html
[Spring _ Bean]: https://www.javanav.com/val/92f9e0951b19454196b645bb3cb1a0b9.html
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[Bean 5]: https://www.javanav.com/val/a5f8bf440848487bb0c0bdaa6c846cc6.html
[BeanDefinition]: https://www.javanav.com/val/e82279480ec24184bcaf723a50ef08b3.html
[Spring IoC]: https://www.javanav.com/val/d382c8380fc2480788a35a7e671b5e9b.html
[BeanFactory _ FactoryBean]: https://www.javanav.com/val/173e873a2c98499a8a08a13b4f88ae10.html
[BeanFactory _ ApplicationContext]: https://www.javanav.com/val/bbc2c9580b7045e583855925d5f1a50b.html
[Spring IoC 1]: https://www.javanav.com/val/a835e6c709ea439ebb21a80f1bf77926.html
[Spring IoC 2]: https://www.javanav.com/val/e377beac22644c2c85308079b239a0fd.html
[Spring bean]: https://www.javanav.com/val/7f8c2e1f24db46e79bc4b9b04f9ad715.html
[Spring-IoC]: https://www.javanav.com/val/a412668efda74412a13f6df9a6d2c714.html
[Spring 1]: https://www.javanav.com/val/6eac12a548ea40c68ff64b1af307563a.html
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