import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.mail.search.*;
import javax.activation.*;
public class FetchMail
{
public static void main(String[] args) {
// SUBSTITUTE YOUR ISP's POP3 SERVER HERE!!!
String host = "pop.gmail.com";
// SUBSTITUTE YOUR USERNAME AND PASSWORD TO ACCESS E-MAIL HERE!!!
String user = "your user name"; //eg. "ishwar"
String password = "your gmail password"; //e.g "ishwar123"
// SUBSTITUTE YOUR SUBJECT SUBSTRING TO SEARCH HERE!!!
String subjectSubstringToSearch = "Test E-Mail through Java";
Properties props = new Properties();
props.put("mail.pop3s.starttls.enable", "true");
Session session = Session.getDefaultInstance(props,null);
try
{
// Get a Store object
Store store = session.getStore("pop3s");
store.connect(host,995,user, password);
// Get "INBOX"
Folder fldr = store.getFolder("INBOX");
fldr.open(Folder.READ_WRITE);
int count = fldr.getMessageCount();
System.out.println(count + " total messages");
// Message numebers start at 1
for(int i = 1; i <= count; i++)
{
// Get a message by its sequence number
Message m = fldr.getMessage(i);
// Get some headers
Date date = m.getSentDate();
Address [] from = m.getFrom();
String subj = m.getSubject();
String mimeType = m.getContentType();
System.out.println(date + "\t" + from[0] + "\t" + subj + "\t" + mimeType);
}
// Search for e-mails by some subject substring.
String pattern = subjectSubstringToSearch;
SubjectTerm st = new SubjectTerm(pattern);
// Get some message references
Message [] found = fldr.search(st);
System.out.println(found.length +" messages matched Subject pattern \"" +pattern + "\"");
for (int i = 0; i < found.length; i++)
{
Message m = found[i];
// Get some headers of email
Date date = m.getSentDate();
Address [] from = m.getFrom();
String subj = m.getSubject();
String mimeType = m.getContentType();
System.out.println(date + "\t" + from[0] + "\t" + subj + "\t" + mimeType);
Object o = m.getContent();
if (o instanceof Multipart)
{
System.out.print("**This is a Multipart Message. ");
Multipart mp = (Multipart)o;
int count3 = mp.getCount();
System.out.println("It has " + count3 +
" BodyParts in it**");
for (int j = 0; j < count3; j++)
{
// Part are numbered starting at 0
BodyPart b = mp.getBodyPart(j);
String mimeType2 = b.getContentType();
System.out.println( "BodyPart " + (j + 1) +
" is of MimeType " + mimeType);
Object o2 = b.getContent();
if (o2 instanceof String)
{
System.out.println("**This is a String BodyPart**");
System.out.println((String)o2);
}
else if (o2 instanceof Multipart)
{
System.out.print(
"**This BodyPart is a nested Multipart. ");
Multipart mp2 = (Multipart)o2;
int count2 = mp2.getCount();
System.out.println("It has " + count2 +
"further BodyParts in it**");
}
else if (o2 instanceof InputStream) {
System.out.println(
"**This is an InputStream BodyPart**");
}
} //End of for
}
else if (o instanceof String)
{
System.out.println("**This is a String Message**");
System.out.println((String)o);
}
else if (o instanceof InputStream)
{
System.out.println("**This is an InputStream message**");
InputStream is = (InputStream)o;
// Assumes character content (not binary images)
int c;
while ((c = is.read()) != -1)
{
System.out.write(c);
}
}
} //End of for
fldr.close(true);
store.close();
}
catch (MessagingException mex)
{
mex.printStackTrace();
}
catch (IOException ioex)
{
ioex.printStackTrace();
}
}
}
for above program you need to download two jar file
1)jaf-1.1.1
2)javamail-1.4.5
One more things you need to enable the POP protocol in your gmail account .
- You login in your gmail account.
- Click on the Gear icon in the top right-hand corner of your screen and select Mail settings.
- Click on Forwarding and POP/IMAP.
- Under POP Download/Status select the Enable option that you prefer.
- Under POP Download/When messages are accessed with POP
select the option that you prefer. We recommend that you select one of
the options that leaves a copy of your messages on the server. This
allows you to view your e-mails from more than one location and also
insures that you always have a backup on the Gmail servers.
- Click Save Changes.
