Java邮件发送带附件

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/qingfeng812/article/details/8948281

package Test;

import java.util.Date;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Address;

import javax.mail.Authenticator;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.Multipart;

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;

import javax.mail.internet.MimeUtility;

/*

需要的jar 包 activation.jar   mail.jar

*/

public class Send2{  

    // 邮箱服务器  

    private String host = "smtp.qq.com";// 或者是 smtp.163(sina).com  

    private String username = "

[email protected]

";   //邮箱名称

    private String password = " ";   //邮箱密码

    private String mail_to = "

";   //发送至 人邮箱

    private String mail_from = "

";   //发送人邮箱username

    private String mail_subject = "送你的幸福！湘竹集美伊客！";   //邮箱主题

    private String mail_body = "测试信息";   //邮箱内容

    private String personalName = "

"; //发送人邮箱username

    public Send2(){}  

    public void send() throws Exception{  

        try{  

           Properties props=new Properties();  

 Authenticator auth = new Email_Autherticator(); // 进行邮件服务器用户认证  

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

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

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

           //设置session,和邮件服务器进行通讯。  

           MimeMessage message = new MimeMessage(session);  

           message.setSubject(mail_subject); // 设置邮件主题  

           //添加附件信息

           Multipart   mp   =   new   MimeMultipart(); 

           BodyPart mbp1 = new MimeBodyPart();

           FileDataSource fds = new FileDataSource("d:\\测试.doc");

           mbp1.setDataHandler(new DataHandler(fds));

            //设置附件名称

           mbp1.setFileName(MimeUtility.encodeText("d:\\测试.doc", "utf-8", null));

           mp.addBodyPart(mbp1);

           BodyPart mbp = new MimeBodyPart();

           mbp.setContent(mail_body, "text/html;charset=utf-8");

           mp.addBodyPart(mbp);

           message.setContent(mp);

           message.setSentDate(new Date()); // 设置邮件发送日期  

           Address address = new InternetAddress(mail_from, personalName);  

           message.setFrom(address); // 设置邮件发送者的地址  

           Address toAddress = new InternetAddress(mail_to); // 设置邮件接收方的地址  

           message.addRecipient(Message.RecipientType.TO, toAddress);  

           Transport.send(message); // 发送邮件  

           System.out.println("邮件发送成功!");  

        }catch (Exception ex){  

            //ex.printStackTrace();  

            if(ex instanceof javax.mail.AuthenticationFailedException){

             System.out.println("认证错误");

            }

           throw new Exception(ex.getMessage());  

        }  

   }  

    /** 

     * 用来进行服务器对用户的认证 

     */ 

    public class Email_Autherticator extends Authenticator{  

        public Email_Autherticator(){  

            super();  

        public Email_Autherticator(String user, String pwd){  

           super();  

           username = user;  

           password = pwd;  

        public PasswordAuthentication getPasswordAuthentication(){  

            return new PasswordAuthentication(username, password);  

    }  

    public static void main(String[] args){  

     Send2 sendmail = new Send2();  

         try{  

             sendmail.send();  

             ex.printStackTrace();  

} 

/*注意: 当发送人使用QQ 邮箱时，QQ 邮箱必须开启PoP3/SMTP 协议

如何启用PoP3/SMTP 协议

登陆QQ邮箱

https://mail.qq.com/

设置-->账号--> 开启PoP3/SMTP 协议*/