如何从Java发送SMTP消息?[复制品]

下面是gmail smtp的一个示例:

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("mail@tovare.com"));;
        msg.setRecipients(Message.RecipientType.TO,
        InternetAddress.parse("tov.are.jacobsen@iss.no", 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", "admin@tovare.com", "<insert password here>");
        t.sendMessage(msg, msg.getAllRecipients());
        System.out.println("Response: " + t.getLastServerResponse());
        t.close();
    }
}

现在,只有当您希望将项目依赖性保持在最低限度时才这样做,否则我可以热情地推荐使用Apache中的类。

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

当做

托夫是雅各布森

另一种方法是使用阿司匹林( https://github.com/masukomi/aspirin 像这样:

MailQue.queMail(MimeMessage message)

…在按照上述方式构建了您的MimeMessage之后。

阿司匹林 是 一个SMTP“服务器”,因此您不必配置它。但是请注意,向一组广泛的收件人发送电子邮件并不像看上去那么简单,因为接收邮件服务器和客户端应用程序的垃圾邮件过滤规则有很多不同。

请看这个帖子

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

它是特定于Gmail的,但您可以替换您的SMTP凭证。

见 JavaMail API 以及相关的javadocs。

在Java实践中查看下面的教程。

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

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);
}