Java 发送 Email

发送 email 需要 email.jar activation.jar

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package tao.email;

import java.util.Date;

import java.util.Properties;

import javax.mail.Authenticator;

import javax.mail.Message;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

public class MailSender {

private String smtp = "smtp.qq.com"; // 邮件服务器

private String username = "11111";

private String password = "xxxxx";

private String from = username+"@qq.com";

EmailAuthenticator auth = new EmailAuthenticator(this.username,this.password);

Properties props = System.getProperties();

{

props.put("mail.smtp.host",smtp);

props.put("mail.smtp.auth", "true");

}

Session session = Session.getDefaultInstance(props,(Authenticator)auth);

Message msg = new MimeMessage(session);

public void sendTo(String to){

try{

msg.setFrom(new InternetAddress(from));

msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

msg.setSubject("用户注册验证");

msg.setSentDate(new Date());

msg.setText("xxxxx");

Transport transport = session.getTransport("smtp");

transport.connect(smtp, from, password);

transport.sendMessage(msg,msg.getAllRecipients());

transport.close();

System.out.println("OK");

}catch(Exception e){

}

}

public static void main(String[] args) {

new MailSender().sendTo("1111@126.com");

}

}

class EmailAuthenticator extends Authenticator{

private String username, password;

public EmailAuthenticator(String username, String password){

this.username = username;

this.password = password;

}

public PasswordAuthentication getPasswordAuthentication(){

return new PasswordAuthentication(this.username, this.password);

}

}