java发送邮件代码

转:http://cqjc.iteye.com/blog/277646
package com.test.mail; 

import java.util.Properties; 

import javax.mail.Authenticator; 
import javax.mail.BodyPart; 
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.MimeBodyPart; 
import javax.mail.internet.MimeMessage; 
import javax.mail.internet.MimeMultipart; 

public class SendMail { 
public static void main(String[] args) { 
  try { 
   String username="source@163.com"; 
   String password="xxxxx"; 
   String smtp_server="smtp.163.com"; 
   String from_mail_address=username; 
   String to_mail_address="to@163.com"; 
   
   Authenticator auth = new PopupAuthenticator(username,password); 

   Properties mailProps = new Properties(); 
   mailProps.put("mail.smtp.auth", "true"); 

   mailProps.put("username", username); 

   mailProps.put("password", password); 

   mailProps.put("mail.smtp.host", smtp_server); 
   Session mailSession = Session.getDefaultInstance(mailProps, auth); 
   MimeMessage message = new MimeMessage(mailSession); 
   message.setFrom(new InternetAddress(from_mail_address)); 
   message.setRecipient(Message.RecipientType.TO, new InternetAddress(to_mail_address)); 
   message.setSubject("Mail Test"); 

   MimeMultipart multi = new MimeMultipart(); 
   BodyPart textBodyPart = new MimeBodyPart(); 
   textBodyPart.setText("电子邮件测试内容!"); 
   multi.addBodyPart(textBodyPart); 
   message.setContent(multi); 
   message.saveChanges(); 
   Transport.send(message); 
  } catch (Exception ex) { 
   System.err.println("邮件发送失败的原因是:" + ex.getMessage()); 
   System.err.println("具体错误原因:"); 
   ex.printStackTrace(System.err); 
  } 
} 

} 

class PopupAuthenticator extends Authenticator { 
private String username; 
private String password; 
public PopupAuthenticator(String username,String password){ 
  this.username=username; 
     this.password=password; 
} 
public PasswordAuthentication getPasswordAuthentication() { 
  return new PasswordAuthentication(this.username, this.password); 
} 
}

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