java - 新实例 Spring 作用域

Question

我正在使用 Spring boot，我想知道是否有办法在每次调用特定方法时创建一个新实例。

我的意思是，我有一个专门用于创建 Autowiring 类的新实例的单例对象，并且我希望每次调用函数 init 时并且仅当我调用该对象的新实例时已创建。

@Component
public class PlatformFactoryManager {

    @Autowired
    private JiraFactory jiraFactory;

    /**
     * Obtain new factory instance of specified platform.
     */
    public IPlatformFactory getNewInstance(UserAccount userAccount, AuthenticationService authService, PlatformBean platform) {
        switch (platform.getPlatformName()) {
            case "Jira Restaurantes":
                jiraFactory.init(authService.getBy(userAccount.getUserId(), Platforms.JIRA_RESTAURANTES), platform);
                return jiraFactory;
            case "Jira Yapiko":
                jiraFactory.init(authService.getBy(userAccount.getUserId(), Platforms.JIRA_YAPIKO), platform);
                return jiraFactory;
            case "Jira FDJGS":
                jiraFactory.init(authService.getBy(userAccount.getUserId(), Platforms.JIRA_FDJGS), platform);
                return jiraFactory;
            default:
                return null;
        }
    }

}

@Component
public class JiraFactory implements IPlatformFactory {

    @Autowired
    private JiraBroker jiraBroker;

    private String platformName;
    private String url;

    public void init(UserAuthentication credentials, PlatformBean platform) {
        this.platform = platform;
        this.credentials = credentials;
        jiraBroker.init(platform.getUrl());
    }

...

}

每次调用 init 时，我都希望有一个 JiraFactory 的新实例，并且当我使用其他方法时，它是同一个对象。

有什么办法吗？

Answer 1

您还可以向组件添加@Scope(scopeName = ConfigurableBeanFactory.SCOPE_PROTOTYPE)注释