java - EWS Java 如何查找早于 xx 天的电子邮件并一次性删除所有邮件

Question

我想在文件夹中查找早于 xx 天的项目，并删除一次找到的所有项目。我能够找到符合我的标准的项目。这是我的代码。

import org.joda.time.DateTime;
int purgeDays = 14;

    try {

        ItemView view = new ItemView(Integer.MAX_VALUE);

        Folder purgeFolder = Folder.bind(service, folderId);

        // need to convert to get Mon Sep 12 16:31:27 CDT 2016
        SearchFilter searchFilter = new SearchFilter.IsLessThanOrEqualTo(ItemSchema.DateTimeReceived, (DateTime.now().minusDays(purgeDays).toDate()));

        FindItemsResults<Item> emailsToPurge = service.findItems(purgeFolder.getId(), searchFilter, view);

        if (emailsToPurge != null && emailsToPurge.getItems() != null && emailsToPurge.getTotalCount() > 0 ) {

           // want something to delete all items at once
           emailsToPurge.deleteAll();

        } else {
            log.info("Found no emails to purge for Mailbox-"+ userName);
        }

    } catch (Exception e) {
        log.error("Exception "+ e.getMessage());
    }

Answer 1

查看 ExchangeService 类上的 deleteItems 方法 https://msdn.microsoft.com/en-us/library/microsoft.exchange.webservices.data.exchangeservice.deleteitems(v=exchg.80).aspx这允许您发送批量删除项目请求。我建议您对删除进行分页，但一次不要超过 1000 个项目，否则您可能会遇到限制和/或请求超时的问题。