如何在 C++ 中保存电子邮件

在本教程中，我们将学习如何在 C++ 中保存 Email 消息。您将观察如何使用 Exchange 客户端连接您的邮箱，以使用 C++ 中的简单 API 调用从中获取和保存电子邮件。

在 C++ 中保存电子邮件的步骤

从 NuGet 包管理器工具安装 Aspose.Email for C++
包括对 Aspose::Email 命名空间的引用
通过在 EWSClient.GetEWSClient() 方法中提供凭据连接到 Exchange 邮箱
遍历邮箱的 ExchangeMessageInfoCollection 中的每封邮件
使用 C++ 将消息以 EML 和 MSG 格式保存在磁盘上

您可以使用几行代码轻松地将电子邮件保存到 C++ 中的磁盘。您只需要使用 EWSClient 连接到您的邮箱并获得对消息集合的访问权限。然后，您可以使用 C++ 中的简单代码以 EML 格式或 MSG 格式将电子邮件保存在磁盘上。

用 C++ 保存电子邮件的代码

	#pragma once

	#include <Tools/Search/StringComparisonField.h>
	#include <Tools/Search/MailQuery.h>
	#include <Tools/Search/BoolComparisonField.h>
	#include <system/string.h>
	#include <system/shared_ptr.h>
	#include <stdio.h>
	#include <system/object.h>
	#include <Clients/Exchange/WebService/EWSClient/IEWSClient.h>
	#include <Clients/Exchange/WebService/EWSClient/EWSClient.h>
	#include <MailAddress.h>
	#include <MailAddressCollection.h>
	#include <MailAddress.h>
	#include <Clients/Exchange/ExchangeMessageInfoCollection.h>
	#include <Clients/Exchange/ExchangeMailboxInfo.h>
	#include <system/console.h>
	#include <system/environment.h>
	#include <system/object_ext.h>
	#include <Licensing/License.h>

	using namespace Aspose::Email;
	using namespace Aspose::Email::Clients::Exchange;
	using namespace Aspose::Email::Clients::Exchange::WebService;
	using namespace System;

	void SaveEmailFromEWS()
	{
	// Set the license for Aspose.Email for CPP
	SharedPtr<License> license = System::MakeObject<License>();
	license->SetLicense(u"licFile");


	// EWS Client Credentials
	const System::String mailboxUri = u"https://outlook.office365.com/ews/exchange.asmx";
	const System::String username = u"username";
	const System::String password = u"password";
	const System::String domain = u"domain";

	try
	{
	// Connect to EWS
	System::SharedPtr<IEWSClient> client = EWSClient::GetEWSClient(mailboxUri, username, password, domain);

	// Get mailbox
	System::SharedPtr<ExchangeMailboxInfo> MailBoxInfo = client->GetMailboxInfo();

	// Get list of all messages from the mail box
	System::SharedPtr< ExchangeMessageInfoCollection> MessagesCollection =
	client->ListMessages(client->GetMailboxInfo()->get_InboxUri());

	//Loop through email messages
	int MessageCount = 1;
	for(System::SharedPtr <ExchangeMessageInfo> MessageInfo : MessagesCollection)
	{
	System::String strMessageURI = MessageInfo->get_UniqueUri();
	// Access message details
	System::Console::Write(System::Environment::get_NewLine() +
	System::ObjectExt::ToString(u"Subject: " + MessageInfo->get_Subject()));
	System::Console::Write(System::Environment::get_NewLine() +
	System::ObjectExt::ToString(u"From: " + System::ObjectExt::ToString(MessageInfo->get_From())));
	System::Console::Write(System::Environment::get_NewLine() +
	System::ObjectExt::ToString(u"To: " + System::ObjectExt::ToString(MessageInfo->get_To())));
	System::Console::Write(System::Environment::get_NewLine() +
	System::ObjectExt::ToString(u"Message ID: " + MessageInfo->get_MessageId()));
	System::Console::Write(System::Environment::get_NewLine() +
	System::ObjectExt::ToString(u"Unique URI: " + MessageInfo->get_UniqueUri()));

	// Save each message on disk in EML and MSG formats
	System::String MessageStr = u"Messsage_"+MessageCount;
	client->SaveMessage(strMessageURI, MessageStr + u".eml");
	client->SaveMessage(strMessageURI, MessageStr + u".msg");
	MessageCount++;
	}
	}
	catch (System::Exception ex)
	{
	System::Console::Write(System::Environment::get_NewLine() + System::ObjectExt::ToString(ex));
	}
	}

view raw How to Save Email Message in C++.cpp hosted with ❤ by GitHub

之前，我们学习了如何在 C++ 中发送电子邮件。然而，在本主题中，我们学习了如何使用 Exchange 客户端连接到邮箱并将电子邮件保存到 C++ 中的磁盘。

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如何在 C++ 中保存电子邮件

在 C++ 中保存电子邮件的步骤

用 C++ 保存电子邮件的代码