首页 > 解决方案 > o:EJB 类中的套接字 - 我在 org.omnifaces.util.Messages 中得到一个 NPE

问题描述

我正在尝试从我的 EJB 类发送推送通知:

@Stateless
public class SendEmailNotificationReminderServiceBean implements SendEmailNotificationReminderService {

    @Inject
    private BeanManager beanManager;

private void sendNotification {
        // Push Nachricht
        PushEvent event = new PushEvent("sendNotification", 1);
        beanManager.fireEvent(event);
}

}

这是我的插座:

    @Named
@ApplicationScoped
public class NotificationSocket implements Serializable {

    private static final long serialVersionUID = 7615791377170410627L;

    @Inject
    @Push(channel = "notificationChannel")
    private PushContext push;


    /**
     * Push Notification
     * 
     * @param recipientUser
     */
    public void pushUser(@Observes PushEvent event) {

        if (event == null)
            return;

        Set<Future<Void>> sent = push.send(event.getMessage(), event.getUserId());

    }

}

我的对象:

public class PushEvent {

    private String message;
    private Long userId;

    public PushEvent(String message) {
        super();
        this.message = message;
    }

    //////////////

    public PushEvent(String message, Long userId) {
        super();
        this.message = message;
        this.userId = userId;
    }

    public String getMessage() {
        return message;
    }

    public Long getUserId() {
        return userId;
    }

}

我的 JSF 页面:

<o:socket channel="notificationChannel"
        user="#{loginBean.currentEmployee.id}" scope="session"
        onmessage="notificationLoadScript">
    </o:socket>

    <h:form id="notificationPushTopbarForm">
        <p:remoteCommand name="notificationLoadScript"
            actionListener="#{topbarMenuController.loadNotification()}"
            oncomplete="changeTitleForNotification(#{topbarMenuController.numberOfNewNotificationAvailable})"
            update=":notificationLink, :notificationSidebarForm" global="false" />
    </h:form>

我想做的是:

我没有收到错误消息,但 JSF 组件也没有更新(p:remoteCommand 调用)。知道如何解决这个问题吗?

标签: jsfomnifaces

解决方案


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