ews-java-api：项目更新错误：至少一个收件人无效

Posted 2023-03-28

【中文标题】ews-java-api：项目更新错误：至少一个收件人无效

【英文标题】：ews-java-api: Error on item update: At least one recipient isn't valid

【发布时间】：2016-06-27 12:09:40

【问题描述】：

我正在开发一个工具，它使用 ews-java-api 在 Outlook 议程中创建、更新和删除日历项目。它一直工作正常，但现在有时当它尝试更新某些日历项目时，我收到以下错误：

microsoft.exchange.webservices.data.core.exception.service.remote.ServiceResponseException: At least one recipient isn't valid., A message can't be sent because it contains no recipients.
at microsoft.exchange.webservices.data.core.response.ServiceResponse.internalThrowIfNecessary(ServiceResponse.java:278)
at microsoft.exchange.webservices.data.core.response.ServiceResponse.throwIfNecessary(ServiceResponse.java:267)
at microsoft.exchange.webservices.data.core.request.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:165)
at microsoft.exchange.webservices.data.core.ExchangeService.internalUpdateItems(ExchangeService.java:691)
at microsoft.exchange.webservices.data.core.ExchangeService.updateItem(ExchangeService.java:762)
at microsoft.exchange.webservices.data.core.service.item.Item.internalUpdate(Item.java:279)
at microsoft.exchange.webservices.data.core.service.item.Item.update(Item.java:400)
at be.vrt.quintiqexchange.main.QuintiqAdapter.insertUpdateCalendarItems(QuintiqAdapter.java:879)
at be.vrt.quintiqexchange.main.QuintiqAdapter.updateCalendarItems(QuintiqAdapter.java:796)
at be.vrt.quintiqexchange.main.QuintiqAdapter.run(QuintiqAdapter.java:286)
at java.lang.Thread.run(Thread.java:745)

近期所有exchange账户都从本地Outlook服务器迁移到Office365云服务器。也许这与它有关？或者有人知道出了什么问题吗？

以下代码是对一个项目执行更新：

Item it = alitems.get(i);
...
it.update(ConflictResolutionMode.AlwaysOverwrite);

以下是用来访问office365 ews的url：

exchangewebservice = https://outlook.office365.com/EWS/Exchange.asmx

提前致谢

编辑：我使用的是 ews-java-api 2.0 版

编辑：在这里您可以看到错误发生在一行而不是下一行，对于相同的收件人，它不会发生...

microsoft.exchange.webservices.data.core.exception.service.remote.ServiceResponseException: At least one recipient isn't valid., A message can't be sent because it contains no recipients.
    at microsoft.exchange.webservices.data.core.response.ServiceResponse.internalThrowIfNecessary(ServiceResponse.java:278)
    at microsoft.exchange.webservices.data.core.response.ServiceResponse.throwIfNecessary(ServiceResponse.java:267)
    at microsoft.exchange.webservices.data.core.request.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:165)
    at microsoft.exchange.webservices.data.core.ExchangeService.internalUpdateItems(ExchangeService.java:691)
    at microsoft.exchange.webservices.data.core.ExchangeService.updateItem(ExchangeService.java:762)
    at microsoft.exchange.webservices.data.core.service.item.Item.internalUpdate(Item.java:279)
    at microsoft.exchange.webservices.data.core.service.item.Item.update(Item.java:400)
    at be.vrt.quintiqexchange.main.QuintiqAdapter.insertUpdateCalendarItems(QuintiqAdapter.java:880)
    at be.vrt.quintiqexchange.main.QuintiqAdapter.updateCalendarItems(QuintiqAdapter.java:703)
    at be.vrt.quintiqexchange.main.QuintiqAdapter.run(QuintiqAdapter.java:283)
    at java.lang.Thread.run(Thread.java:745)
WARN  be.vrt.quintiqexchange.main.QuintiqAdapter - At least one recipient isn't valid., A message can't be sent because it contains no recipients.by UPDATE for subject:  on Thu Jun 23 14:00:00 CEST 2016 Thu Jun 23 19:00:00 CEST 2016 of user [e-mail]
INFO  be.vrt.quintiqexchange.main.QuintiqAdapter - Appointment updated for subject: NIET DAG on Fri Aug 05 10:00:00 CEST 2016 Fri Aug 05 18:00:00 CEST 2016 of user [e-mail]
INFO  be.vrt.quintiqexchange.main.QuintiqAdapter - Appointment updated for subject: PROEF st5 on Mon Aug 22 10:00:00 CEST 2016 Mon Aug 22 20:30:00 CEST 2016 of user [e-mail]

这意味着收件人并不是真正的问题，我猜...

附言我替换了原来的邮件地址，但相信我，这是一个正确的邮件地址 :)

【问题讨论】：

我对 Java 和 EWS 一无所知，但如果您查看UpdateItem documentation，您会发现还有一个 MessageDisposition。您没有指定任何内容。也许这是试图向不存在的用户发送通知...

您好，谢谢您的回复。嗯，ews-java-api 中的更新方法将 MessageDisposition 设置为 SaveOnly。它还将 SendInvitationsOrCancellationsMode 设置为 null。在 c# 中有一个重载方法，您可以在其中设置 SendInvitationsOrCancellationsMode，但在 Java 中则不行...

我认为你需要设置有效的收件人@MaartenMeeusen

是的，就是这么说的，就是这样。它已经工作了很长时间，突然它随机开始给我这些错误。但是收件人地址没有改变..它也可以与一个收件人一起工作，然后在同一收件人不再工作1分钟后..这就是为什么它如此奇怪......

【参考方案1】：

在我的例子中，如果地址没有被正确修剪并且有任何空白字符，EWS 会抛出这个异常。