MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;

public class MainClass {

    public static void main(String[] args) throws Exception {

        URLName server = new URLName("protocol://username@host/foldername");

        Session session = Session.getDefaultInstance(new Properties(), new MailAuthenticator());

        Folder folder = session.getFolder(server);
        if (folder == null) {
            System.out.println("Folder " + server.getFile() + " not found.");
            System.exit(1);
        }
        folder.open(Folder.READ_ONLY);

        // Get the messages from the server
        Message[] messages = folder.getMessages();
        for (int i = 0; i < messages.length; i++) {
            // Get the headers
            System.out.println("From: " + InternetAddress.toString(messages[i].getFrom()));
            System.out.println("Reply-to: " + InternetAddress.toString(messages[i].getReplyTo()));
            System.out.println(
                    "To: " + InternetAddress.toString(messages[i].getRecipients(Message.RecipientType.TO)));
            System.out.println(
                    "Cc: " + InternetAddress.toString(messages[i].getRecipients(Message.RecipientType.CC)));
            System.out.println(
                    "Bcc: " + InternetAddress.toString(messages[i].getRecipients(Message.RecipientType.BCC)));
            System.out.println("Subject: " + messages[i].getSubject());

            System.out.println("Sent: " + messages[i].getSentDate());
            System.out.println("Received: " + messages[i].getReceivedDate());

            if (messages[i].isSet(Flags.Flag.DELETED)) {
                System.out.println("Deleted");
            }
            if (messages[i].isSet(Flags.Flag.ANSWERED)) {
                System.out.println("Answered");
            }
            if (messages[i].isSet(Flags.Flag.DRAFT)) {
                System.out.println("Draft");
            }
            if (messages[i].isSet(Flags.Flag.FLAGGED)) {
                System.out.println("Marked");
            }
            if (messages[i].isSet(Flags.Flag.RECENT)) {
                System.out.println("Recent");
            }
            if (messages[i].isSet(Flags.Flag.SEEN)) {
                System.out.println("Read");
            }
            if (messages[i].isSet(Flags.Flag.USER)) {
                // We don't know what the user flags might be in advance
                // so they're returned as an array of strings
                String[] userFlags = messages[i].getFlags().getUserFlags();
                for (int j = 0; j < userFlags.length; j++) {
                    System.out.println("User flag: " + userFlags[j]);
                }
            }
        }
        folder.close(false);
    }
}

class MailAuthenticator extends Authenticator {

    public MailAuthenticator() {
    }

    public PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication("username", "password");
    }
}