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업무진행중 작성한 실제 구동 가능한 예제 프로그램
daum.net 메일서버에 pop3로 접속하여 긴급이라는 제목의 메일들을 가져온다
import java.util.Enumeration;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Folder;
import javax.mail.Header;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.MimeMultipart;
public class TestGetPOPMails {
private static final String MAIL_POP_HOST = "pop.daum.net";
private static final String MAIL_STORE_TYPE = "pop3";
private static final String POP_USER = ""; //아이디 (user@DomainName.com)
private static final String POP_PASSWORD = ""; //비밀번호
private static final String POP_PORT = "995";
public static void getMails(String user, String password) {
try {
// create properties field
Properties properties = new Properties();
properties.put("mail.pop3.host", MAIL_POP_HOST);
properties.put("mail.pop3.port", POP_PORT);
properties.put("mail.pop3.starttls.enable", "true");
properties.put("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
// Session emailSession = Session.getDefaultInstance(properties);
Session emailSession = Session.getDefaultInstance(properties, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(POP_USER, POP_PASSWORD);
}
});
// create the POP3 store object and connect with the pop server
Store store = emailSession.getStore(MAIL_STORE_TYPE);
store.connect(MAIL_POP_HOST, user, password);
// create the folder object and open it
Folder emailFolder = store.getFolder("INBOX");
emailFolder.open(Folder.READ_ONLY);
// retrieve the messages from the folder in an array and print it
Message[] messages = emailFolder.getMessages();
System.out.println("messages.length---" + messages.length);
// for (int i = 0, n = messages.length; i < n; i++) {
for (int i = messages.length - 1; i > -1; i--) {
Message message = messages[i];
if (message.getSubject().indexOf("긴급") > -1) {
System.out.println("---------------------------------");
System.out.println("Email Number " + (i + 1));
System.out.println("Subject: " + message.getSubject());
System.out.println("From: " + message.getFrom()[0]);
System.out.println("Date: " + message.getHeader("Date")[0]);
System.out.println("Body: " + getTextFromMessage(message));
}
}
// close the store and folder objects
emailFolder.close(false);
store.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public static String getTextFromMessage(Message message) throws MessagingException, IOException {
String result = "";
if (message.isMimeType("text/plain")) {
result = message.getContent().toString();
} else if (message.isMimeType("multipart/*")) {
MimeMultipart mimeMultipart = (MimeMultipart) message.getContent();
result = getTextFromMimeMultipart(mimeMultipart);
}
return result;
}
public static String getTextFromMimeMultipart(MimeMultipart mimeMultipart) throws MessagingException, IOException{
String result = "";
int count = mimeMultipart.getCount();
for (int i = 0; i < count; i++) {
BodyPart bodyPart = mimeMultipart.getBodyPart(i);
if (bodyPart.isMimeType("text/plain")) {
result = result + "\n" + bodyPart.getContent();
break; // without break same text appears twice in my tests
} else if (bodyPart.isMimeType("text/html")) {
String html = (String) bodyPart.getContent();
result = result + "\n" + org.jsoup.Jsoup.parse(html).text();
} else if (bodyPart.getContent() instanceof MimeMultipart){
result = result + getTextFromMimeMultipart((MimeMultipart)bodyPart.getContent());
}
}
return result;
}
public static void main(String[] args) {
getMails(POP_USER, POP_PASSWORD);
}
}