receiver mail from server - IMAP - Java

Ilk once bize host, port, username ve password lazimdir.
Host ve port serverden asili olaraq deyishe biler. Hal-hazir ki, numune gmail uchundur.

[ get file from message ]

	import service.MailService;
	public class Main {
	public static void main(String[] args) {
	MailService mailService = new MailService();
	String protocol = "imap";
	String host = "imap.gmail.com"; // host depends on the server
	String port = "993"; // port depends on the server
	String userName = "your_email";
	String password = "your_password";
	mailService.downloadEmails(protocol, host, port, userName,password);
	}
	}

view raw Main.java hosted with ❤ by GitHub

	package service;
	import com.sun.mail.imap.IMAPFolder;
	import com.sun.mail.util.BASE64DecoderStream;
	import javax.mail.*;
	import javax.mail.internet.MimeBodyPart;
	import java.io.IOException;
	import java.util.Properties;
	public class MailService {
	private Properties getServerProperties(String protocol, String host, String port) {
	Properties properties = new Properties();
	// server setting
	properties.put(String.format("mail.%s.host", protocol), host);
	properties.put(String.format("mail.%s.port", protocol), port);
	// SSL setting
	properties.setProperty(
	String.format("mail.%s.socketFactory.class", protocol),
	"javax.net.ssl.SSLSocketFactory");
	properties.setProperty(
	String.format("mail.%s.socketFactory.fallback", protocol),
	"false");
	properties.setProperty(
	String.format("mail.%s.socketFactory.port", protocol),
	String.valueOf(port));
	return properties;
	}
	public void downloadEmails(String protocol, String host, String port,
	String userName, String password) {
	Properties properties = getServerProperties(protocol, host, port);
	Session session = Session.getDefaultInstance(properties);
	try {
	// connects to the message store
	Store store = session.getStore(protocol);
	store.connect(userName, password);
	// opens the inbox folder
	Folder folderInbox = store.getFolder("INBOX");
	IMAPFolder imapFolder = (IMAPFolder) folderInbox;
	folderInbox.open(Folder.READ_ONLY);
	// fetches new messages from server
	// Message[] messages = folderInbox.getMessages();
	Message[] messages = imapFolder.getMessages();
	for (int i = 0; i < 10; i++) {
	Message msg = messages[i];
	System.out.println(imapFolder.getUID(msg));
	Address[] fromAddress = msg.getFrom();
	String from = fromAddress[0].toString();
	String subject = msg.getSubject();
	String toList = parseAddresses(msg
	.getRecipients(Message.RecipientType.TO));
	String ccList = parseAddresses(msg
	.getRecipients(Message.RecipientType.CC));
	String sentDate = msg.getSentDate().toString();
	String contentType = msg.getContentType();
	StringBuilder messageContent = new StringBuilder();
	if (contentType.contains("text/plain") || contentType.contains("text/html")) {
	try {
	Object content = msg.getContent();
	if (content != null) {
	messageContent = new StringBuilder(content.toString());
	}
	} catch (Exception ex) {
	messageContent = new StringBuilder("[Error downloading content]");
	ex.printStackTrace();
	}
	}
	else if(contentType.contains("multipart")){
	Multipart multipart = (Multipart) msg.getContent();
	for(int j = 0 ; j < multipart.getCount() ; j++){
	MimeBodyPart part = (MimeBodyPart) multipart.getBodyPart(j);
	Object obj = part.getContent();
	if(obj instanceof BASE64DecoderStream){
	messageContent.append("FileName ").append(part.getFileName()).append(" ");
	}
	else if(obj instanceof String){
	// System.out.println(obj.getClass().getName());
	messageContent.append(obj);
	}
	}
	}
	// print out details of each message
	System.out.println("Message #" + (i + 1) + ":");
	System.out.println("\t From: " + from);
	System.out.println("\t To: " + toList);
	System.out.println("\t CC: " + ccList);
	System.out.println("\t Subject: " + subject);
	System.out.println("\t Sent Date: " + sentDate);
	System.out.println("\t Message: " + messageContent);
	}
	// disconnect
	folderInbox.close(false);
	store.close();
	} catch (NoSuchProviderException ex) {
	System.out.println("No provider for protocol: " + protocol);
	ex.printStackTrace();
	} catch (MessagingException ex) {
	System.out.println("Could not connect to the message store");
	ex.printStackTrace();
	} catch (IOException e) {
	e.printStackTrace();
	}
	}
	private String parseAddresses(Address[] address) {
	StringBuilder listAddress = new StringBuilder();
	if (address != null) {
	for (Address value : address) {
	listAddress.append(value.toString()).append(", ");
	}
	}
	if (listAddress.length() > 1) {
	listAddress = new StringBuilder(listAddress.substring(0, listAddress.length() - 2));
	}
	return listAddress.toString();
	}
	}

view raw MailService.java hosted with ❤ by GitHub