Wednesday, November 23, 2011

Read Gmail from Java

package com.timers;

import java.util.Properties;

import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.search.FlagTerm;
/**
 *
 * @author Vinay Guntaka
 * mail.jar is required to execute this program (download from java2s.com)
 * And your Gmail Credentails.
 * This Program reads only unread mails of your box
 *
 */
public class ReadGmail {
    public static void main(String args[]) {
        while (true) {
            try {
                System.out.println("Started.......");
                Start();
                System.out.println("...Read completed.......");

                try {
                    Thread.sleep(1000 * 5);
                } catch (InterruptedException e1) {

                }

            } catch (Exception e) {

                try {
                    e.printStackTrace();
                    System.out.println("..Error in connection Sleeping...");

                } catch (Exception e1) {

                }
            }
        }

    }

    public static void Start() throws Exception {
        Properties props = System.getProperties();

        props.setProperty("mail.store.protocol", "imaps");
        try {
            Session session = Session.getDefaultInstance(props, null);
            Store store = session.getStore("imaps");
            //simply username dnt include @gmail.com
            store.connect("imap.gmail.com", "username", "password");
            System.out.println(store);
            int cout = 0;

            Folder inbox = store.getFolder("Inbox");
            inbox.open(Folder.READ_ONLY);

            // / to read only unread mails
            FlagTerm ft = new FlagTerm(new Flags(Flags.Flag.SEEN), false);
            Message messages[] = inbox.search(ft);
           
            // To read all mails from inbox
            //Message messages[] = inbox.getMessages();

            for (Message message : messages) {
                System.out.println("Reading:" + (messages.length - cout));
                System.out.println("MEssage Content :: --"
                        + message.getSubject() + message.getReceivedDate());
                cout++;
            }

        } catch (NoSuchProviderException e) {
            e.printStackTrace();

        } catch (MessagingException e) {
            e.printStackTrace();

        }

    }
}

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