com.ck.email.SimpleMailSender Maven / Gradle / Ivy

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package com.ck.email;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import javax.mail.internet.MimeMessage.RecipientType;
import java.util.Date;
import java.util.Enumeration;
import java.util.List;
import java.util.Properties;

public class SimpleMailSender {
	// 发送邮件的props文件
	private final transient Properties props = System.getProperties();
	// 邮件服务器登录验证
	private transient MailAuthenticator authenticator;
	// 邮箱session
	private transient Session session;

	/***
	 * 初始化邮件发送器
	 * @param smtpHostName SMTP邮件服务器地址
	 * @param username 发送邮件的用户名(地址)
	 * @param password 发送邮件的密码
	 */
	public SimpleMailSender(final String smtpHostName, final String username, final String password) {
		init(username, password, smtpHostName);
	}

	/**
	 * 初始化邮件发送器
	 * 
	 * @param username 发送邮件的用户名(地址)，并以此解析SMTP服务器地址(对大多数邮箱都管用)
	 * @param password 发送邮件的密码
	 */
	public SimpleMailSender(final String username, final String password) {
		// 通过邮箱地址解析出smtp服务器，对大多数邮箱都管用
		final String smtpHostName = "smtp." + username.split("@")[1];
		init(username, password, smtpHostName);
	}

	/**
	 * 初始化
	 * 
	 * @param username 发送邮件的用户名(地址)
	 * @param password 密码
	 * @param smtpHostName SMTP主机地址
	 */
	private void init(String username, String password, String smtpHostName) {
		// 初始化props
		props.put("mail.smtp.auth", "true");
		props.put("mail.smtp.host", smtpHostName);
		// 验证
		authenticator = new MailAuthenticator(username, password);
		// 创建session
		session = Session.getInstance(props, authenticator);
	}

	/***
	 * 发送邮件
	 * @param recipient 收件人邮箱地址
	 * @param content SimpleMail
	 * @throws AddressException t
	 * @throws MessagingException t
	 */
	private void send(String recipient, SimpleMail content) throws AddressException, MessagingException {
		// 创建mime类型邮件
		final MimeMessage message = new MimeMessage(session);
		// 设置发信人
		message.setFrom(new InternetAddress(authenticator.getUsername()));
		// 设置收件人
		message.setRecipient(RecipientType.TO, new InternetAddress(recipient));
		// 设置主题
		message.setSubject(content.getSubject());
		// 后面的BodyPart将加入到此处创建的Multipart中
		//添加HTML正文
		MimeMultipart htmlContent = new MimeMultipart("related");
		BodyPart msgContent = new MimeBodyPart();
		msgContent.setContent(content.getContent(), "text/html;charset=utf-8");
		htmlContent.addBodyPart(msgContent);
		Multipart mp = new MimeMultipart("subtype");
		BodyPart htmlBody = new MimeBodyPart();
		htmlBody.setContent(htmlContent);
		mp.addBodyPart(htmlBody);
		if(content instanceof AttachMail){
			// 利用枚举器方便的遍历集合
			Enumeration efile = ((AttachMail) content).getFile().elements();
			// 检查序列中是否还有更多的对象
			while (efile.hasMoreElements()) {
				MimeBodyPart mbp = new MimeBodyPart();
				// 选择出每一个附件名
				String filename = efile.nextElement().toString();
				// 得到数据源
				FileDataSource fds = new FileDataSource(filename);
				// 得到附件本身并至入BodyPart
				mbp.setDataHandler(new DataHandler(fds));
				// 得到文件名同样至入BodyPart
				mbp.setFileName(fds.getName());
				mp.addBodyPart(mbp);
			}
		}
		// Multipart加入到信件
		message.setContent(mp);
		// 设置信件头的发送日期
		//message.setSentDate(TimeUtils.stringToDate("2020-05-12 23:12:33", TimeFormat.YYYYMMDDHHMMSS));
		// 发送
		Transport.send(message);
	}

	/**
	 * 群发邮件
	 * 
	 * @param recipients 收件人们
	 * @param content 内容
	 * @throws AddressException 和
	 * @throws MessagingException 和
	 */
	private void send(List recipients, SimpleMail content)
			throws AddressException, MessagingException {
		// 创建mime类型邮件
		final MimeMessage message = new MimeMessage(session);
		// 设置发信人
		message.setFrom(new InternetAddress(authenticator.getUsername()));
		// 设置收件人们
		final int num = recipients.size();
		InternetAddress[] addresses = new InternetAddress[num];
		for (int i = 0; i < num; i++) {
			addresses[i] = new InternetAddress(recipients.get(i));
		}
		message.setRecipients(RecipientType.TO, addresses);
		// 设置主题
		message.setSubject(content.getSubject());
		// 设置邮件内容
		MimeMultipart htmlContent = new MimeMultipart("related");
		BodyPart msgContent = new MimeBodyPart();
		msgContent.setContent(content.getContent(), "text/html;charset=utf-8");
		htmlContent.addBodyPart(msgContent);
		Multipart mp = new MimeMultipart("subtype");
		BodyPart htmlBody = new MimeBodyPart();
		htmlBody.setContent(htmlContent);
		mp.addBodyPart(htmlBody);
		if(content instanceof AttachMail){
			// 利用枚举器方便的遍历集合
			Enumeration efile = ((AttachMail) content).getFile().elements();
			// 检查序列中是否还有更多的对象
			while (efile.hasMoreElements()) {
				MimeBodyPart mbp = new MimeBodyPart();
				// 选择出每一个附件名
				String filename = efile.nextElement().toString();
				// 得到数据源
				FileDataSource fds = new FileDataSource(filename);
				// 得到附件本身并至入BodyPart
				mbp.setDataHandler(new DataHandler(fds));
				// 得到文件名同样至入BodyPart
				mbp.setFileName(fds.getName());
				mp.addBodyPart(mbp);
			}
		}
		// Multipart加入到信件
		message.setContent(mp);
		// 设置信件头的发送日期
		message.setSentDate(new Date());
		// 发送
		Transport.send(message);
	}

	/***
	 * 发送邮件
	 * @param recipient 收件人邮箱地址
	 * @param mail 邮件对象
	 * @return boolean
	 */
	public boolean sendMsg(String recipient, SimpleMail mail){
		try {
			send(recipient, mail);
			return true;
		} catch (MessagingException e) {
			e.printStackTrace();
		}
		return false;
	}

	/***
	 *  群发邮件
	 * @param recipients 收件人们
	 * @param mail 邮件对 象　
	 * @return boolean
	 */
	public boolean sendGroupMsg(List recipients, SimpleMail mail){
		try {
			send(recipients, mail);
			return true;
		} catch (MessagingException e) {
			e.printStackTrace();
		}
		return false;
	}

//	public static void main(String[] args) {
//		AttachMail simpleMail = new AttachMail();
//		simpleMail.setContent("内容.....有附件");
//		simpleMail.setSubject("附件标题");
//		simpleMail.attachfile("C:\\Users\\ikfan\\Pictures\\Saved Pictures\\1.jfif");
//		simpleMail.attachfile("C:\\Users\\ikfan\\Pictures\\Saved Pictures\\2.jpg");
//		simpleMail.attachfile("C:\\Users\\ikfan\\Pictures\\Saved Pictures\\3.gif");
//		SimpleMailSender sender = new SimpleMailSender("[email protected]","btknwrqmdxwebadf");
//		System.out.println(sender.sendMsg("[email protected]",simpleMail));
//	}
}