java - 监听 Exchange 上的新电子邮件

Question

我正在尝试使用 ews-java API 连接到我的收件箱并监听新电子邮件。

我似乎能够很好地连接，并且我正在从此处复制 github 上的示例代码:

https://github.com/OfficeDev/ews-java-api/wiki/Getting-Started-Guide#beginsubscribetopushnotifications

// Subscribe to push notifications on the Inbox folder, and only listen
// to "new mail" events.
PushSubscription pushSubscription = service.SubscribeToPushNotifications(
    new FolderId[] { WellKnownFolderName.Inbox },
    new Uri("https://...") /* The endpoint of the listener. */,
    5 /* Get a status event every 5 minutes if no new events are available. */,
    null  /* watermark: null to start a new subscription. */,
    EventType.NewMail);

但是这是 eclipse 中的错误:

 new FolderId[] { WellKnownFolderName.Inbox },  // <---TYPE MISMATCH - CANNOT CONVERT FRM
WELLKNOWNFOLDERNAME TO FOLDERID

还有

EventType.NewMail);  // <---- NEWMAIL CANNOT BE RESOLVED OR IS NOT A FIELD

很难解决这个问题，因为我找不到该库所有方法的手册 - 而且该示例不起作用。

完整代码为:

package com.geekhelp.quickstart;

import javax.swing.event.DocumentEvent.EventType;

import microsoft.exchange.webservices.data.autodiscover.IAutodiscoverRedirectionUrl;
import microsoft.exchange.webservices.data.core.ExchangeService;
import microsoft.exchange.webservices.data.core.enumeration.misc.ExchangeVersion;
import microsoft.exchange.webservices.data.core.enumeration.property.WellKnownFolderName;
import microsoft.exchange.webservices.data.core.service.item.EmailMessage;
import microsoft.exchange.webservices.data.core.service.item.Item;
import microsoft.exchange.webservices.data.credential.ExchangeCredentials;
import microsoft.exchange.webservices.data.credential.WebCredentials;
import microsoft.exchange.webservices.data.notification.PushSubscription;
import microsoft.exchange.webservices.data.property.complex.FolderId;
import microsoft.exchange.webservices.data.property.complex.MessageBody;
import microsoft.exchange.webservices.data.search.FindItemsResults;
import microsoft.exchange.webservices.data.search.ItemView;

public class App {
    public static void main(String[] args) {
        System.out.println("Running");
        ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
        ExchangeCredentials credentials = new WebCredentials("test@test.com0", "test");
        service.setCredentials(credentials);
        try {
            service.autodiscoverUrl("test@test.com");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("Hello World");

        EmailMessage message;
        try {
            message = new EmailMessage(service);

            message.getToRecipients().add("test@test.com");
            message.setSubject("attachements");
            message.setBody(MessageBody.getMessageBodyFromText("Email attachements"));
            message.send();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


        // Subscribe to push notifications on the Inbox folder, and only listen
        // to "new mail" events.
        PushSubscription pushSubscription = service.SubscribeToPushNotifications(
            new FolderId[] { WellKnownFolderName.Inbox },  // <------------ TYPE MISMATCH - CANNOT CONVERT FRM
WELLKNOWNFOLDERNAME TO FOLDERID
            new java.net.URI("https://mail.test.com//EWS//Exchange.asmx") /* The endpoint of the listener. */,
            5 /* Get a status event every 5 minutes if no new events are available. */,
            null  /* watermark: null to start a new subscription. */,
            EventType.NewMail);  // <----------- NEWMAIL CANNOT BE RESOLVED OR IS NOT A FIELD
    }

谢谢。

更新

谢谢，但我仍然收到错误:

FolderId[] folderId = { new FolderId(WellKnownFolderName.Inbox)};
PushSubscription pushSubscription = service.subscribeToPushNotifications( folderId , service.getUrl(), 5, null, EventType.NewMail);

subscribeToPushNotifications 带有红色下划线，IDE 表示:

类型 ExchangeService 中的方法 subscribeToPushNotifications(Iterable, URI, int, String, EventType...) 不适用于参数 (FolderId[], URI, int, null, EventType)

Answer 1

有两件事:

1) 要从 WellKnownFolderName 创建 FolderId，您必须使用 relevant constructor 。所以改变: 新的FolderId[] { WellKnownFolderName.Inbox }到:

新FolderId[] { 新FolderId(WellKnownFolderName.Inbox) }

注意:new FolderId[] {..} 仅创建一个数组。然后数组中的每个项目都必须是 FolderId 类型，因此我们使用构造函数 new FolderId(...) 并将 WellKnownFolderName 传递为论证。

2) 您导入了错误的 EventType(可能是 IDE 自动导入功能的错误)，
因此请更改: 导入 javax.swing.event.DocumentEvent.EventType; 到:

导入microsoft.exchange.webservices.data.core.enumeration.notification.EventType;