Hi there. I'm new to the JavaMail library and I'm simply trying to download the attachments from my last received email to a folder. Every time I run the code I get an error regarding the host and connection. Something to do with the pop3... please help!
import java.io.File; import java.io.IOException; import java.util.Properties;import javax.mail.Address;
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.Session;
import javax.mail.Store;
import javax.mail.internet.MimeBodyPart;/**
This program demonstrates how to download e-mail messages and save
attachments into files on disk.
@author www.codejava.net
/
private String saveDirectory;/**
Sets the directory where attached files will be stored.
@param dir absolute path of the directory
*/
public void setSaveDirectory(String dir) {
this.saveDirectory = dir;
}/**
Downloads new messages and saves attachments to disk if any.
@param host
@param port
@param userName
@param password
/
public void downloadEmailAttachments(String host, String port,
String userName, String password) {
Properties properties = new Properties();// server setting
properties.put(“mail.pop3.host”, host);
properties.put(“mail.pop3.port”, “587”);// SSL setting
properties.setProperty(“mail.pop3.socketFactory.class”, “javax.net.ssl.SSLSocketFactory”);
properties.setProperty(“mail.pop3.socketFactory.fallback”, “false”);
properties.setProperty(“mail.pop3.socketFactory.port”,
String.valueOf(port));Session session = Session.getDefaultInstance(properties);
try {
// connects to the message store
Store store = session.getStore(“pop3”);
store.connect(userName, password);// opens the inbox folder
Folder folderInbox = store.getFolder(“INBOX”);
folderInbox.open(Folder.READ_ONLY);// fetches new messages from server
Message[] arrayMessages = folderInbox.getMessages();for (int i = 0; i < arrayMessages.length; i++) {
Message message = arrayMessages[i];
Address[] fromAddress = message.getFrom();
String from = fromAddress[0].toString();
String subject = message.getSubject();
String sentDate = message.getSentDate().toString();String contentType = message.getContentType();
String messageContent = “”;// store attachment file name, separated by comma
String attachFiles = “”;if (contentType.contains(“multipart”)) {
// content may contain attachments
Multipart multiPart = (Multipart) message.getContent();
int numberOfParts = multiPart.getCount();
for (int partCount = 0; partCount < numberOfParts; partCount++) {
MimeBodyPart part = (MimeBodyPart) multiPart.getBodyPart(partCount);
if (Part.ATTACHMENT.equalsIgnoreCase(part.getDisposition())) {
// this part is attachment
String fileName = part.getFileName();
attachFiles += fileName + ", ";
part.saveFile(saveDirectory + File.separator + fileName);
} else {
// this part may be the message content
messageContent = part.getContent().toString();
}
}if (attachFiles.length() > 1) {
attachFiles = attachFiles.substring(0, attachFiles.length() - 2);
}
} else if (contentType.contains(“text/plain”)
|| contentType.contains(“text/html”)) {
Object content = message.getContent();
if (content != null) {
messageContent = content.toString();
}
}// print out details of each message
System.out.println(“Message #” + (i + 1) + “:”);
System.out.println("\t From: " + from);
System.out.println("\t Subject: " + subject);
System.out.println("\t Sent Date: " + sentDate);
System.out.println("\t Message: " + messageContent);
System.out.println("\t Attachments: " + attachFiles);
}// disconnect
folderInbox.close(false);
store.close();
}
catch (NoSuchProviderException ex) {
System.out.println(“No provider for pop3.”);
ex.printStackTrace();
}
catch (MessagingException ex) {
System.out.println(“Could not connect to the message store”);
ex.printStackTrace();
}
catch (IOException ex) {
ex.printStackTrace();
}
}/**
Runs this program with Gmail pop3 server
/
void setup () {
String host = “pop3.gmail.com”;
String port = “587”;
String userName = “random email”;
String password = “random password”;
String saveDirectory = “C://”;
setSaveDirectory(saveDirectory);
downloadEmailAttachments(host, port, userName, password);
}
