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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                ### @Qualifier @Qualifier注解是使用限定符的主要方式;它可以與@Autowired和@Inject協同使用,在注入的時候指定想要注入進去的是哪個bean;為@Qualifier注解所設置的參數就是想要注入的bean的ID; 更準確地講,@Qualifier\("iceCream"\)所引用的bean要具有String類型的“iceCream”作為限定符。如果沒有指定其他的限定符的話,所有的bean都會給定一個默認的限定符,這個限定符與bean的ID相同 ### 創建自定義的限定符 ``` @Component @Qualifier("datasource") public class DataSource {} @Bean @Qualifier("datasource") public DataSource devDataSource(){ return new DataSource("dev datasource"); } ``` 說明:@Qualifier可以與@Component和@Qualifier組合使用
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