com.jcohy.mail.MailUtils Maven / Gradle / Ivy

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package com.jcohy.mail;


import java.io.IOException;
import java.util.List;
import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message.RecipientType;
import javax.mail.MessagingException;
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;


/**
 * Copyright  : 2015-2033 Beijing
 * Created by jiac on 2018/3/5 15:08.
 * ClassName  : ArrayUtils
 * Description  : 本类只有这么一个方法，用来发邮件！
 */
public class MailUtils {

	public static Session createSession(String host, final String username, final String password) {
		Properties prop = new Properties();
		// 指定主机
		prop.setProperty("mail.host", host);
		// 指定验证为true
		prop.setProperty("mail.smtp.auth", "true");
		// 创建验证器
		Authenticator auth = new Authenticator() {
			public PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication(username, password);
			}
		};
		// 获取session对象
		return Session.getInstance(prop, auth);
	}
	
	/**
	 * 发送指定的邮件
	 * 
	 * @param mail 邮件
	 * @param session session
	 * @throws MessagingException 异常
	 * @throws IOException 异常
	 */
	public static void send(Session session, final Mail mail) throws MessagingException,
			IOException {

		// 创建邮件对象
		MimeMessage msg = new MimeMessage(session);

		// 设置发件人
		msg.setFrom(new InternetAddress(mail.getFrom()));

		// 设置收件人
		msg.addRecipients(RecipientType.TO, mail.getToAddress());

		// 设置抄送
		String cc = mail.getCcAddress();
		if (!cc.isEmpty()) {
			msg.addRecipients(RecipientType.CC, cc);
		}

		// 设置暗送
		String bcc = mail.getBccAddress();
		if (!bcc.isEmpty()) {
			msg.addRecipients(RecipientType.BCC, bcc);
		}

		// 设置主题
		msg.setSubject(mail.getSubject());

		// 创建部件集对象
		MimeMultipart parts = new MimeMultipart();

		// 创建一个部件
		MimeBodyPart part = new MimeBodyPart();

		// 设置邮件文本内容
		part.setContent(mail.getContent(), "text/html;charset=utf-8");

		// 把部件添加到部件集中
		parts.addBodyPart(part);

		// 添加附件
		// 获取所有附件
		List attachBeanList = mail.getAttachs();
		if (attachBeanList != null) {
			for (AttachBean attach : attachBeanList) {
				// 创建一个部件
				MimeBodyPart attachPart = new MimeBodyPart();
				// 设置附件文件
				attachPart.attachFile(attach.getFile());
				attachPart.setFileName(MimeUtility.encodeText(attach
						.getFileName()));// 设置附件文件名
				String cid = attach.getCid();
				if(cid != null) {
					attachPart.setContentID(cid);
				}
				parts.addBodyPart(attachPart);
			}
		}

		// 给邮件设置内容
		msg.setContent(parts);
		// 发邮件
		Transport.send(msg);
	}
}