javaMail发邮件 简单小例子

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package com.mail; 


import java.util.Properties; 


import javax.mail.Authenticator; 

import javax.mail.Message; 

import javax.mail.MessagingException; 

import javax.mail.PasswordAuthentication; 

import javax.mail.Session; 

import javax.mail.Transport; 

import javax.mail.internet.InternetAddress; 


import com.sun.mail.smtp.SMTPMessage; 


class SimpleAuthenticator extends Authenticator{ 

 private String userName; 

 private String password; 

 public SimpleAuthenticator(String userName, String password) { 

 super(); 

 this.userName = userName; 

 this.password = password; 

 } 

 public PasswordAuthentication getPasswordAuthentication() { 

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


 } 



} 

public class SendMail { 



 public static void sendMail(){ 

 String userName = "[e-mail]"; 

 String password="xxxxxxx"; 

 String subject = "aaaaaaaaaaa"; // 邮件标题 

 String body = "bbbbbbbbbbbbbb"; // 邮件内容 

 Properties props=System.getProperties(); 

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

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

 // Session session=Session.getDefaultInstance(props); 

 Session session = Session.getDefaultInstance(props,new SimpleAuthenticator(userName, password) ); 

 SMTPMessage message=new SMTPMessage(session); 

 try { 

 message.setRecipient(Message.RecipientType.TO,new InternetAddress("[e-mail]"));//收件人 

 message.setSubject(subject); 

 message.setText(body); 

 message.setFrom(new InternetAddress("[e-mail]"));//设置发件人 发件人必须要和Authenticator验证的帐号一致 

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

 transport.connect(userName, password); 

 transport.send(message); 

 transport.close(); 

 } catch (MessagingException e) { 

 e.printStackTrace(); 

 } 




 } 


 public static void main(String[] args) { 

 SendMail.sendMail(); 

 } 

}