Java Tutorial/Email/Email Client
Java Mail POP3 Client
<source lang="java">
import java.util.Properties; import javax.mail.Folder; import javax.mail.Message; import javax.mail.Session; import javax.mail.Store; public class MainClass {
public static void main(String[] args) throws Exception { Properties props = new Properties(); String host = "yourHost.edu"; String username = "userName"; String password = "mypassword"; String provider = "pop3"; Session session = Session.getDefaultInstance(props, null); Store store = session.getStore(provider); store.connect(host, username, password); Folder inbox = store.getFolder("INBOX"); if (inbox == null) { System.out.println("No INBOX"); System.exit(1); } inbox.open(Folder.READ_ONLY); Message[] messages = inbox.getMessages(); for (int i = 0; i < messages.length; i++) { System.out.println("Message " + (i + 1)); messages[i].writeTo(System.out); } inbox.close(false); store.close(); }
}</source>
Java Mail Secure POP3 Client
<source lang="java">
import java.util.Properties; import javax.mail.Authenticator; import javax.mail.Folder; import javax.mail.Message; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Store; public class MainClass {
public static void main(String[] args) throws Exception { Properties props = new Properties(); String host = "yourserver.edu"; String provider = "pop3"; Session session = Session.getDefaultInstance(props, new MailAuthenticator()); Store store = session.getStore(provider); store.connect(host, null, null); Folder inbox = store.getFolder("INBOX"); if (inbox == null) { System.out.println("No INBOX"); System.exit(1); } inbox.open(Folder.READ_ONLY); Message[] messages = inbox.getMessages(); for (int i = 0; i < messages.length; i++) { System.out.println("Message " + (i + 1)); messages[i].writeTo(System.out); } inbox.close(false); store.close(); }
} class MailAuthenticator extends Authenticator {
public MailAuthenticator() { } public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("username", "password"); }
}</source>