How do I send an SMTP Message from Java? [duplicat

问题:

Possible Duplicate:
How do you send email from a Java app using Gmail?

How do I send an SMTP Message from Java?

回答1:

Here's an example for Gmail smtp:

import java.io.*;
import java.net.InetAddress;
import java.util.Properties;
import java.util.Date;

import javax.mail.*;

import javax.mail.internet.*;

import com.sun.mail.smtp.*;


public class Distribution {

    public static void main(String args[]) throws Exception {
        Properties props = System.getProperties();
        props.put("mail.smtps.host","smtp.gmail.com");
        props.put("mail.smtps.auth","true");
        Session session = Session.getInstance(props, null);
        Message msg = new MimeMessage(session);
        msg.setFrom(new InternetAddress("[e-mail]"));;
        msg.setRecipients(Message.RecipientType.TO,
        InternetAddress.parse("[e-mail]", false));
        msg.setSubject("Heisann "+System.currentTimeMillis());
        msg.setText("Med vennlig hilsennTov Are Jacobsen");
        msg.setHeader("X-Mailer", "Tov Are's program");
        msg.setSentDate(new Date());
        SMTPTransport t =
            (SMTPTransport)session.getTransport("smtps");
        t.connect("smtp.gmail.com", "[e-mail]", "<insert password here>");
        t.sendMessage(msg, msg.getAllRecipients());
        System.out.println("Response: " + t.getLastServerResponse());
        t.close();
    }
}

Now, do it this way only if you would like to keep your project dependencies to a minimum, otherwise i can warmly recommend using classes from apache

http://commons.apache.org/email/

Regards

Tov Are Jacobsen

回答2:

Another way is to use aspirin (https://github.com/masukomi/aspirin) like this:

MailQue.queMail(MimeMessage message)

..after having constructed your mimemessage as above.

Aspirin is an smtp 'server' so you don't have to configure it. But note that sending email to a broad set of recipients isnt as simple as it appears because of the many different spam filtering rules receiving mail servers and client applications apply.

回答3:

Please see this post

How can I send an email by Java application using GMail, Yahoo, or Hotmail?

It is specific to gmail but you can substitute your smtp credentials.

回答4:

See the JavaMail API and associated javadocs.

回答5:

See the following tutorial at Java Practices.

http://www.javapractices.com/topic/TopicAction.do?Id=144

回答6:

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*; 

public void postMail(String recipients[], String subject,
    String message , String from) throws MessagingException {

    //Set the host smtp address
    Properties props = new Properties();
    props.put("mail.smtp.host", "smtp.jcom.net");

    // create some properties and get the default Session
    Session session = Session.getDefaultInstance(props, null);
    session.setDebug(false);

    // create a message
    Message msg = new MimeMessage(session);

    // set the from and to address
    InternetAddress addressFrom = new InternetAddress(from);
    msg.setFrom(addressFrom);

    InternetAddress[] addressTo = new InternetAddress[recipients.length]; 
    for (int i = 0; i < recipients.length; i++) {
        addressTo[i] = new InternetAddress(recipients[i]);
    }
    msg.setRecipients(Message.RecipientType.TO, addressTo);

    // Optional : You can also set your custom headers in the Email if you Want
    msg.addHeader("MyHeaderName", "myHeaderValue");

    // Setting the Subject and Content Type
    msg.setSubject(subject);
    msg.setContent(message, "text/plain");
    Transport.send(msg);
}