package com;



import java.util.Properties;



import javax.mail.Authenticator;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.Multipart;

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 com.abcchina.PopupAuthenticator;



public class Send {
public static void main(String[] args) throws Exception {
Properties props = new Properties();


String host = "smtp.ym.163.com"; // 163免费企业邮箱的smtp服务器
String from = "web@longxrnd.com"; // 我的企业邮箱地址
String to = "wangyonglin1@sina.com"; // 邮件要发送到的邮箱地址
String username = "web";
String password = "******"; //
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", host);
String content = "hello";
String subJect="这是一个好消息1";


//认证的时候用的是 邮箱全拼 密码   而不是用户 密码 这点要注意
Authenticator smtpAuth = new PopupAuthenticator(
from, password);

Session session = Session.getDefaultInstance(props, smtpAuth);
session.setDebug(true);
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
BodyPart mdp = new MimeBodyPart();
mdp.setContent(content, "text/html;charset=gb2312");
Multipart mm = new MimeMultipart();
mm.addBodyPart(mdp);
message.setContent(mm);
message.setSubject(subJect);
message.saveChanges();
Transport transport = session.getTransport("smtp");
transport.connect(host, username, password);//链接的时候用的是 用户名 密码   而不是邮箱全拼 密码 这点要注意
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
}


=======================================================
package com.abcchina;



import javax.mail.Authenticator;

import javax.mail.PasswordAuthentication;



public class PopupAuthenticator extends Authenticator {
 String    username=null;

      String    password=null;



      public PopupAuthenticator(){}

      

      public PopupAuthenticator(String username,String password
){

     this.username=username;

     this.password=password;

      }



      public PasswordAuthentication performCheck(String user,String pass){

             username = user;

             password = pass;

             return getPasswordAuthentication();

      }



      protected PasswordAuthentication getPasswordAuthentication() {

             return new PasswordAuthentication(username, password); 

      } 



}





有什么不明白的直接评论即可！！！

springboot腾讯企业邮箱发送邮件的yml配置

spring:
  mail:
    default-encoding: UTF-8
    host: smtp.exmail.qq.com
    port: 587
    username: ***@qq.com
    password: ********
    properties:
            mail:
                smtp:
                    auth: true
                    timeout: 25000

##Java通过腾讯企业邮箱发送邮件(多人发送)

企业邮箱需要使用ssl 

 private static String account = "企业邮箱账户";// 登录账户
 private static String password = "企业邮箱密码";// 登录密码
 private static String host = "smtp.exmail.qq.com";// 服务器地址
 private static String port = "465";// 端口
 private static String protocol = "smtp";// 协议
 //初始化参数
 public static Session initProperties() {
     Properties properties = new Properties();
     properties.setProperty("mail.transport.protocol", protocol);
     properties.setProperty("mail.smtp.host", host);
     properties.setProperty("mail.smtp.port", port);
     // 使用smtp身份验证
     properties.put("mail.smtp.auth", "true");
     // 使用SSL,企业邮箱必需 start
     // 开启安全协议
     MailSSLSocketFactory mailSSLSocketFactory = null;
     try {
         mailSSLSocketFactory = new MailSSLSocketFactory();
         mailSSLSocketFactory.setTrustAllHosts(true);
     } catch (GeneralSecurityException e) {
         e.printStackTrace();
     }
     properties.put("mail.smtp.enable", "true");
     properties.put("mail.smtp.ssl.socketFactory", mailSSLSocketFactory);
     properties.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
     properties.put("mail.smtp.socketFactory.fallback", "false");
     properties.put("mail.smtp.socketFactory.port", port);
     Session session = Session.getDefaultInstance(properties, new Authenticator() {
         @Override
         protected PasswordAuthentication getPasswordAuthentication() {
             return new PasswordAuthentication(account, password);
         }
     });
     // 使用SSL,企业邮箱必需 end
     // TODO 显示debug信息 正式环境注释掉
     session.setDebug(true);
     return session;
 }
 // @param sender 发件人别名
 // @param subject 邮件主题
 //@param content 邮件内容
 //@param receiverList 接收者列表,多个接收者之间用","隔开
 //@param fileSrc 附件地址
 public void send(String sender, String subject, String content, String receiverList, String fileSrc) {
     try {
         Session session = initProperties();
         MimeMessage mimeMessage = new MimeMessage(session);
         mimeMessage.setFrom(new InternetAddress(account, sender));// 发件人,可以设置发件人的别名
         // 收件人,多人接收
         InternetAddress[] internetAddressTo = new InternetAddress().parse(receiverList);
         mimeMessage.setRecipients(Message.RecipientType.TO, internetAddressTo);
         // 主题
         mimeMessage.setSubject(subject);
         // 时间
         mimeMessage.setSentDate(new Date());
         // 容器类 附件
         MimeMultipart mimeMultipart = new MimeMultipart();
         // 可以包装文本,图片,附件
         MimeBodyPart bodyPart = new MimeBodyPart();
         // 设置内容
         bodyPart.setContent(content, "text/html; charset=UTF-8");
         mimeMultipart.addBodyPart(bodyPart);
         // 添加图片&附件
         bodyPart = new MimeBodyPart();
         bodyPart.attachFile(fileSrc);
         mimeMultipart.addBodyPart(bodyPart);
         mimeMessage.setContent(mimeMultipart);
         mimeMessage.saveChanges();
         Transport.send(mimeMessage);
     } catch (MessagingException e) {
         e.printStackTrace();
     } catch (UnsupportedEncodingException e) {
         e.printStackTrace();
     } catch (IOException e) {
         e.printStackTrace();
     }
 }
 

Java通过腾讯企业邮箱发送邮件


	
企业邮箱需要使用ssl

	

private static String account = "企业邮箱账户";// 登录账户
private static String password = "企业邮箱密码";// 登录密码
private static String host = "smtp.exmail.qq.com";// 服务器地址
private static String port = "465";// 端口
private static String protocol = "smtp";// 协议
//初始化参数
public static Session initProperties() {
    Properties properties = new Properties();
    properties.setProperty("mail.transport.protocol", protocol);
    properties.setProperty("mail.smtp.host", host);
    properties.setProperty("mail.smtp.port", port);
    // 使用smtp身份验证
    properties.put("mail.smtp.auth", "true");
    // 使用SSL,企业邮箱必需 start
    // 开启安全协议
    MailSSLSocketFactory mailSSLSocketFactory = null;
    try {
        mailSSLSocketFactory = new MailSSLSocketFactory();
        mailSSLSocketFactory.setTrustAllHosts(true);
    } catch (GeneralSecurityException e) {
        e.printStackTrace();
    }
    properties.put("mail.smtp.enable", "true");
    properties.put("mail.smtp.ssl.socketFactory", mailSSLSocketFactory);
    properties.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    properties.put("mail.smtp.socketFactory.fallback", "false");
    properties.put("mail.smtp.socketFactory.port", port);
    Session session = Session.getDefaultInstance(properties, new Authenticator() {
        @Override
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(account, password);
        }
    });
    // 使用SSL,企业邮箱必需 end
    // TODO 显示debug信息 正式环境注释掉
    session.setDebug(true);
    return session;
}

// @param sender 发件人别名
// @param subject 邮件主题
//@param content 邮件内容
//@param receiverList 接收者列表,多个接收者之间用","隔开
//@param fileSrc 附件地址
public void send(String sender, String subject, String content, String receiverList, String fileSrc) {
    try {
        Session session = initProperties();
        MimeMessage mimeMessage = new MimeMessage(session);
        mimeMessage.setFrom(new InternetAddress(account, sender));// 发件人,可以设置发件人的别名
        // 收件人,多人接收
        InternetAddress[] internetAddressTo = new InternetAddress().parse(receiverList);
        mimeMessage.setRecipients(Message.RecipientType.TO, internetAddressTo);
        // 主题
        mimeMessage.setSubject(subject);
        // 时间
        mimeMessage.setSentDate(new Date());
        // 容器类 附件
        MimeMultipart mimeMultipart = new MimeMultipart();
        // 可以包装文本,图片,附件
        MimeBodyPart bodyPart = new MimeBodyPart();
        // 设置内容
        bodyPart.setContent(content, "text/html; charset=UTF-8");
        mimeMultipart.addBodyPart(bodyPart);
        // 添加图片&附件
        bodyPart = new MimeBodyPart();
        bodyPart.attachFile(fileSrc);
        mimeMultipart.addBodyPart(bodyPart);
        mimeMessage.setContent(mimeMultipart);
        mimeMessage.saveChanges();
        Transport.send(mimeMessage);
    } catch (MessagingException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}