SpringMVC 中使用Service Bean

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1. 定义service 接口

public interface ArticleService {    void addArticle(Article article);    void removeArticle(Article article);    List<Article> getArticles(String category_name, int startIndex, int count);    Article getArticleById(String article_id);    void update(String article_id, Article article);}

2. 定义service 实现，并标明@Service

@Servicepublic class ArticleServiceImp implements ArticleService { ...}

3. 在RootConfig中设置san components

@Configuration@ComponentScan(basePackages = {"com.mblog.controller", "com.mblog.service"})public class RootConfig {}

4. 在WebConfig中设置scan components, 注意要与RootConfig中的设置一致

@Configuration@EnableWebMvc@ComponentScan(basePackages = {"com.mblog.controller", "com.mblog.service"})public class WebConfig extends WebMvcConfigurerAdapter {...}

5. 在Controller中使用@Autowired

@RestControllerpublic class ArticleRestController {    @Autowired    private ArticleService articleService;...}

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