[Spring]Annotation-based container configuration_AnotationBasis_03 －－JSR 330 Standard Annotations

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JSR 330 Standard Annotations

<dependency> <groupId>javax.inject</groupId> <artifactId>javax.inject</artifactId> <version>1</version></dependency>

由于这并不包含在javaspring框架中所以需要通过maven导入依赖

@Inject

类似于@Autowired

import javax.inject.Inject; public class SimpleMovieLister {private MovieFinder movieFinder;@Injectpublic void setMovieFinder(MovieFinder movieFinder) { this.movieFinder = movieFinder;}public void listMovies() { this.movieFinder.findMovies(...); ...} }

@Inject并没有required属性可以设置

@Named

同时具有@Qulifier和@Component的功能

import javax.inject.Inject; import javax.inject.Named;public class SimpleMovieLister { private MovieFinder movieFinder;@Injectpublic void setMovieFinder(@Named("main") MovieFinder movieFinder) {this.movieFinder = movieFinder; }// ...}

import javax.inject.Inject; import javax.inject.Named;@Named("movieListener")public class SimpleMovieLister { private MovieFinder movieFinder;@Injectpublic void setMovieFinder(MovieFinder movieFinder) { this.movieFinder = movieFinder;}// ...}

@Singleton 类似于 @Scope("singleton"）

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