Go语言视频零基础入门到精通

不要错过

package com.ghb.www.util;

import java.io.File;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
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;

public class EmailSender {
private static final String charset = "GBK";
private static final String defaultMimetype = "text/plain";

public static void main(String[] args) throws Exception {
  EmailSender.send(new String[] { “收件人的邮箱”},
    "测试邮件发送！", "<a href='http://www.baidu.com'>呵呵</a>", null, "text/HTML");
}

/**
  * 发送邮件
  * @param receiver 收件人
  * @param subject 标题
  * @param mailContent 邮件内容
  * @param mimetype 内容类型 默认为text/plain,如果要发送HTML内容,应设置为text/html
  */
public static void send(String receiver, String subject,
   String mailContent, String mimetype) {
  send(new String[] { receiver }, subject, mailContent, mimetype);
}

/**
  * 发送邮件
  * @param receivers 收件人
  * @param subject 标题
  * @param mailContent 邮件内容
  * @param mimetype 内容类型 默认为text/plain,如果要发送HTML内容,应设置为text/html
  */
public static void send(String[] receivers, String subject,
   String mailContent, String mimetype) {
  send(receivers, subject, mailContent, null, mimetype);
}

/**
  * 发送邮件
  * @param receivers 收件人
  * @param subject 标题
  * @param mailContent 邮件内容
  * @param attachements 附件
  * @param mimetype 内容类型 默认为text/plain,如果要发送HTML内容,应设置为text/html
  */
public static void send(String[] receivers, String subject,
   String mailContent, File[] attachements, String mimetype) {
  Properties props = new Properties();
  
  /*以下是常用不同网站的pop和stmp服务器地址：

  网站                      接收服务器             外发服务器

  网易@163.com邮箱        pop.163.com;        smtp.163.com  
  网易@yeah.net邮箱       pop.yeah.net;       smtp.yeah.net  
  网易@netease.com邮箱   pop.netease.com;    smtp.netease.com  
  网易@126.com邮箱：      pop3.126.COM        SMTP.126.COM
  搜狐@sohu.com：        pop3.sohu.com；       smtp.sohu.com
  信网@eyou.com：        pop3.eyou.com；       mx.eyou.com
  新飞网@tom.com：       pop.tom.com；          smtp.tom.com
  亿唐@etang.com：       pop.free.etang.com   smtp.free.etang.com  
  21世纪@21cn.com：      pop.21cn.com；　      smtp.21cn.com */
  
  props.put("mail.smtp.host", "smtp.163.com");//Smtp服务器地址
  props.put("mail.smtp.auth", "true");//需要校验
  Session session = Session.getDefaultInstance(props,
    new Authenticator() {
     protected PasswordAuthentication getPasswordAuthentication() {
      return new PasswordAuthentication("发件人邮箱",
        "发件人邮箱密码");//登录用户名/密码
     }
    });
  session.setDebug(true);
  try {
   MimeMessage mimeMessage = new MimeMessage(session);
   mimeMessage.setFrom(new InternetAddress("发件人邮箱"));//发件人邮件

   InternetAddress[] toAddress = new InternetAddress[receivers.length];
   for (int i = 0; i < receivers.length; i++) {
    toAddress = new InternetAddress(receivers);
   }
   mimeMessage.setRecipients(Message.RecipientType.TO, toAddress);//收件人邮件
   mimeMessage.setSubject(subject, charset);

   Multipart multipart = new MimeMultipart();
   //正文
   MimeBodyPart body = new MimeBodyPart();
   // body.setText(message, charset);不支持html
   body.setContent(mailContent, (mimetype != null
     && !"".equals(mimetype) ? mimetype : defaultMimetype)
     + ";charset=" + charset);
   multipart.addBodyPart(body);//发件内容
   //附件
   if (attachements != null) {
    for (File attachement : attachements) {
     MimeBodyPart attache = new MimeBodyPart();
     //ByteArrayDataSource bads = new ByteArrayDataSource(byte[],"application/x-any");
     attache.setDataHandler(new DataHandler(new FileDataSource(
       attachement)));
     String fileName = getLastName(attachement.getName());
     attache.setFileName(MimeUtility.encodeText(fileName,
       charset, null));
     multipart.addBodyPart(attache);
    }
   }
   mimeMessage.setContent(multipart);
   // SimpleDateFormat formcat = new SimpleDateFormat("yyyy-MM-dd");            
   mimeMessage.setSentDate(new Date());//formcat.parse("2010-5-23")
   Transport.send(mimeMessage);
  } catch (Exception e) {
   e.printStackTrace();
  }
}

private static String getLastName(String fileName) {
  int pos = fileName.lastIndexOf("\\");
  if (pos > -1) {
   fileName = fileName.substring(pos + 1);
  }
  pos = fileName.lastIndexOf("/");
  if (pos > -1) {
   fileName = fileName.substring(pos + 1);
  }
  return fileName;
}

}