I found a nice code to read email from my inbox email server, the code works just fine, but have a couple issues:
I need to capture the message body of each email, but when the email has some attachment, i receive a string like this javax.mail.internet.MimeMultipart@100363, or com.sun.mail.util.BASE64DecoderStream@14e8cee, instead of the body message. If the email is just plain text and have no attachments, it works just fine. seems i am not the only one with this problem, i have been reading over the web but can't find a solution.
I would like to ignore attachments when its size exceed 4 MB.
Below is the class, i will appreciate any comments. it's important to say that i am a novice programmer in java. thanks in advance !
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.NoSuchProviderException;
import javax.mail.Part;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Flags.Flag;
import javax.mail.search.FlagTerm;
public class ReadMailSample {
Properties properties = null;
private Session session = null;
private Store store = null;
private Folder inbox = null;
private String userName;
private String password;
String downloadDirectory = "D:/Attachment/";
public ReadMailSample() {
userName = "[email protected]";// provide user name
password = "mypassword";// provide password
}
public void readMails() {
properties = new Properties();
properties.setProperty("mail.host", "imap.secureserver.net");
properties.setProperty("mail.port", "110");
properties.setProperty("mail.transport.protocol", "imap");
session = Session.getInstance(properties,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(userName, password);
}
});
try {
store = session.getStore("imap");
store.connect();
inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_WRITE);
Message messages[] = inbox.search(new FlagTerm(
new Flags(Flag.SEEN), false));
;
System.out.println("Number of mails = " + messages.length);
for (int i = 0; i < messages.length; i++) {
Message message = messages[i];
Address[] from = message.getFrom();
System.out.println("--> ** E-mail No. "+ i + " **");
System.out.println("-------------------------------");
System.out.println("Date : " + message.getSentDate());
System.out.println("From : " + from[0]);
System.out.println("Subject: " + message.getSubject());
System.out.println("Content :");
processMessageBody(message);
System.out.println("--------------------------------");
}
inbox.close(true);
store.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
public void processMessageBody(Message message) {
try {
Object content = message.getContent();
// check for string
// then check for multipart
if (content instanceof String) {
System.out.println(content);
} else if (content instanceof Multipart) {
System.out.println(content);
Multipart multiPart = (Multipart) content;
procesMultiPart(multiPart);
} else if (content instanceof InputStream) {
InputStream inStream = (InputStream) content;
int ch;
while ((ch = inStream.read()) != -1) {
System.out.write(ch);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
public void procesMultiPart(Multipart content) {
try {
for (int i = 0; i < content.getCount(); i++) {
BodyPart bodyPart = content.getBodyPart(i);
Object o;
o = bodyPart.getContent();
if (o instanceof String) {
System.out.println("Text = " + o);
} else if (null != bodyPart.getDisposition()
&& bodyPart.getDisposition().equalsIgnoreCase(
Part.ATTACHMENT)) {
String fileName = bodyPart.getFileName();
System.out.println("Text = " + o);
System.out.println("fileName = " + fileName);
InputStream inStream = bodyPart.getInputStream();
FileOutputStream outStream = new FileOutputStream(new File(
downloadDirectory + fileName));
byte[] tempBuffer = new byte[4096];// 4 KB
int numRead;
while ((numRead = inStream.read(tempBuffer)) != -1) {
outStream.write(tempBuffer);
}
inStream.close();
outStream.close();
}
// else?
}
} catch (IOException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
ReadMailSample sample = new ReadMailSample();
sample.readMails();
}
}
From the JavaMail FAQ:
Define "ignore". Did you see the getSize method?