IMAP 备份与恢复操作
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Aspose.Email for Java 提供了备份和恢复邮件的功能。为此，API 提供了以下方法。
本文演示了如何使用以下方式备份和恢复邮件： ImapClient 类。
备份邮件
要备份邮件，请使用 ImapClient.backup 方法，如以下代码片段所示。
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// The path to the File directory.
String dataDir = "data/";
// Create an instance of the ImapClient class
ImapClient imapClient = new ImapClient();
// Specify host, username and password, and set port for your client
imapClient.setHost("imap.gmail.com");
imapClient.setUsername("your.username@gmail.com");
imapClient.setPassword("your.password");
imapClient.setPort(993);
imapClient.setSecurityOptions(SecurityOptions.Auto);
ImapMailboxInfo mailboxInfo = imapClient.getMailboxInfo();
ImapFolderInfo info = imapClient.getFolderInfo(mailboxInfo.getInbox().getName());
ImapFolderInfoCollection infos = new ImapFolderInfoCollection();
infos.addItem(info);
imapClient.backup(infos, dataDir + "\\ImapBackup.pst", com.aspose.email.BackupSettings.to_BackupSettings(BackupOptions.Recursive));
恢复邮件
要备份邮件，请使用 ImapClient.restore 方法，如以下代码片段所示。
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// The path to the File directory.
String dataDir = "data/";
// Create an instance of the ImapClient class
ImapClient imapClient = new ImapClient();
// Specify host, username and password, and set port for your client
imapClient.setHost("imap.gmail.com");
imapClient.setUsername("your.username@gmail.com");
imapClient.setPassword("your.password");
imapClient.setPort(993);
imapClient.setSecurityOptions(SecurityOptions.Auto);
ImapRestoreSettings settings = new ImapRestoreSettings();
settings.setRecursive(true);
PersonalStorage pst = PersonalStorage.fromFile(dataDir + "\\ImapBackup.pst");
imapClient.restore(pst, settings);
使用 MultiConnection 的 IMAP 备份与恢复操作
在处理大量邮件时，备份/恢复操作可能需要很长时间。为此，API 在备份和恢复期间提供了多连接支持。要启用 MultiConnection 模式，请设置 ImapClient.UseMultiConnection 属性 MultiConnectionMode.Enable。以下代码片段演示了在启用 MultiConnection 模式下的备份和恢复操作。
使用 MultiConnection 备份邮件
以下代码片段演示了在启用 MultiConnection 模式下的备份操作。
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// The path to the File directory.
String dataDir = "data/";
// Create an instance of the ImapClient class
ImapClient imapClient = new ImapClient();
// Specify host, username and password, and set port for your client
imapClient.setHost("imap.gmail.com");
imapClient.setUsername("your.username@gmail.com");
imapClient.setPassword("your.password");
imapClient.setPort(993);
imapClient.setSecurityOptions(SecurityOptions.Auto);
imapClient.setUseMultiConnection(MultiConnectionMode.Enable);
ImapMailboxInfo mailboxInfo = imapClient.getMailboxInfo();
ImapFolderInfo info = imapClient.getFolderInfo(mailboxInfo.getInbox().getName());
ImapFolderInfoCollection infos = new ImapFolderInfoCollection();
infos.addItem(info);
imapClient.backup(infos, dataDir + "\\ImapBackup.pst", com.aspose.email.BackupSettings.to_BackupSettings(BackupOptions.Recursive));
使用 MultiConnection 恢复邮件
以下代码片段演示了在启用 MultiConnection 模式下的恢复操作。
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// The path to the File directory.
String dataDir = "data/";
// Create an instance of the ImapClient class
ImapClient imapClient = new ImapClient();
// Specify host, username and password, and set port for your client
imapClient.setHost("imap.gmail.com");
imapClient.setUsername("your.username@gmail.com");
imapClient.setPassword("your.password");
imapClient.setPort(993);
imapClient.setSecurityOptions(SecurityOptions.Auto);
imapClient.setUseMultiConnection(MultiConnectionMode.Enable);
ImapRestoreSettings settings = new ImapRestoreSettings();
settings.setRecursive(true);
PersonalStorage pst = PersonalStorage.fromFile(dataDir + "\\Outlook.pst");
imapClient.restore(pst, settings);