春季多个imapAdapter

Question

我是Spring的新手，我不喜欢代码重复。我写了一个工作正常的ImapAdapter：

@Component

public class GeneralImapAdapter {

    private Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired

    private EmailReceiverService emailReceiverService;

    @Bean

    @InboundChannelAdapter(value = "emailChannel", poller = @Poller(fixedDelay = "10000", taskExecutor = "asyncTaskExecutor"))

    public MessageSource<javax.mail.Message> mailMessageSource(MailReceiver imapMailReceiver) {

        return new MailReceivingMessageSource(imapMailReceiver);

    }

    @Bean

    @Value("imaps://<login>:<pass>@<url>:993/inbox")

    public MailReceiver imapMailReceiver(String imapUrl) {

        ImapMailReceiver imapMailReceiver = new ImapMailReceiver(imapUrl);

        imapMailReceiver.setShouldMarkMessagesAsRead(true);

        imapMailReceiver.setShouldDeleteMessages(false);

        // other setters here

        return imapMailReceiver;

    }

    @ServiceActivator(inputChannel = "emailChannel",  poller = @Poller(fixedDelay = "10000", taskExecutor = "asyncTaskExecutor"))

    public void emailMessageSource(javax.mail.Message message) {

        emailReceiverService.receive(message);

    }

}

但是我想要大约20个这样的适配器，唯一的区别是imapUrl。

没有代码重复怎么办？

Answer 1

我并不是在建议您需要动态渠道；我建议您可以使用该示例使用的相同技术，以创建由属性驱动的具有相同配置的多个“ cookie切割器”实例。即AnnotationConfigApplicationContext从您的配置类创建一个新的；在其环境中加载实例的属性，并通过刷新来创建上下文。从而避免代码重复。