Question

我使用 mirror api 创建了一个自定义菜单菜单在 MainServlet

上创建了方法

public List<MenuItem> makeDealMenu(String appBaseUrl) {
    String dealMenuIconUrl = appBaseUrl + "static/images/deal_50.png";

    MenuValue dealMenuValue = new MenuValue();
    dealMenuValue.setDisplayName("DEAL");
    dealMenuValue.setIconUrl(dealMenuIconUrl);

    List<MenuValue> dealMenuValueList = new ArrayList<MenuValue>();
    dealMenuValueList.add(dealMenuValue);

    MenuItem dealMenuItem = new MenuItem();
    dealMenuItem.setAction("CUSTOM");
    dealMenuItem.setId("dealMenu");
    dealMenuItem.setValues(dealMenuValueList);

    List<MenuItem> customMenuItemList = new ArrayList<MenuItem>();
    customMenuItemList.add(dealMenuItem);

    return customMenuItemList;
}

从 doPost 方法我调用 MirrorClient

MirrorClient.insertSubscription(credential,
                WebUtil.buildUrl(request, "/notify"), userId, "timeline");

在 MirrorClient 中定义方法insertSubscription

public static Subscription insertSubscription(Credential credential,
        String callbackUrl, String userId, String collection)
        throws IOException {
LOG.info("Attempting to subscribe verify_token " + userId
        + " with callback " + callbackUrl);

callbackUrl = callbackUrl.replace("appspot.com", "Appspot.com");

Subscription subscription = new Subscription();

subscription.setCollection(collection);
subscription.setCallbackUrl(callbackUrl);
subscription.setUserToken(userId);

return getMirror(credential).subscriptions().insert(subscription)
        .execute();

}

然后在 NotifyServlet 以这种方式接收事件..

        JsonFactory jsonFactory = new JacksonFactory();
        Notification notification = jsonFactory.fromString(notificationString,
                Notification.class);

if (notification.getUserActions().contains(
                    new UserAction().setType("CUSTOM"))) {

                String selectedCustomMenuItemId = notification.getItemId();
                if ("dealMenu".equals(selectedCustomMenuItemId)) {

                    LOG.info("********** I am here in event");
                }
            }

在 Google Cloud Console 中，我设置了回调网址

http://localhost:8080/oauth2callback
https://mirrornotifications.appspot.com/forward?url=http://localhost:8080/notify
http://localhost:8080

如何从我的Servlet获取菜单的点击事件或操作？请有人帮忙......

Answer 1

从镜像api java sample app您可以看到NotifyServlet实施。（或者您从quickstart samples找到相关示例项目的类型服务器。）

首先，您必须定义镜像api的通知回调。然后，您必须订阅 ~~register~~ 以获取通知。在此之后，您的玻璃器皿的所有菜单选择将通过镜像api传递给您的通知回调（通知的servlet）。

如果你的servlet是用Java编写的，请在你的通知callBack上试试这个：

JsonFactory jsonFactory = new JacksonFactory();
// notificationString is parsed form httpRequest's inputstream which is send from Mirror API
Notification notification = jsonFactory.fromString(notificationString, Notification.class);
if (notification.getUserActions().contains(new UserAction().setType("CUSTOM").setPayload("dealMenu")) {
    // User selected CUSTOM menu item on your glassware        
}

修改：定义您的通知回调网址https。从这个：

http://localhost:8080/notify

对此：

https://mirrornotifications.appspot.com/forward?url=http://localhost:8080/notify

要在生产环境中订阅通知，您必须这样做提供带有有效SSL证书的回调URL来处理通知。出于开发目的，您可以使用订阅谷歌提供的代理服务器将通知转发给非SSL回调URL。 https://developers.google.com/glass/tools-downloads/subscription-proxy

Edit2 我对示例java项目进行了一些修改，使其适用于localhost上的通知。您可能希望将以下代码放在MirrorClient类的insertSubscription方法中：

// To work with notifications, modify the notify callback's url by adding subscription-proxy
// callbackUrl = "https://mirrornotifications.appspot.com/forward?url=" + callbackUrl;
if("http://localhost:8080/notify".equals(callbackUrl)) {
    callbackUrl = "https://mirrornotifications.appspot.com/forward?url=" + callbackUrl;
}

我如何获得菜单点击事件

1 个答案: