android发送QQ邮件（带附件）

本文转载自https://my.oschina.net/chenhao901007/blog/373883，谢谢！

package com.dailywork.util;

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


import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
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 javax.mail.internet.MimeUtility;


public class EmailManager {


	private Properties props; // 系统属性
	private Session session; // 邮件会话对象
	private MimeMessage mimeMsg; // MIME邮件对象
	private Multipart mp; // Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象


	/**
	 * Constructor
	 * 
	 * @param smtp
	 *            邮件发送服务器
	 */
	public EmailManager() {
		props = System.getProperties();
		props.put("mail.smtp.auth", "false");
		session = Session.getDefaultInstance(props, null);
		session.setDebug(true);
		mimeMsg = new MimeMessage(session);
		mp = new MimeMultipart();
	}


	/**
	 * Constructor
	 * 
	 * @param smtp
	 *            邮件发送服务器
	 */
	public EmailManager(String smtp, String username, String password) {
		props = System.getProperties();
		props.put("mail.smtp.auth", "true");
		props.put("mail.smtp.host", smtp);
		props.put("username", username);
		props.put("password", password);
		props.setProperty("mail.transport.protocol", "smtp");
		props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");// ssl方式
		session = Session.getDefaultInstance(props, null);
		session.setDebug(true);
		mimeMsg = new MimeMessage(session);
		mp = new MimeMultipart();
	}


	/**
	 * 发送邮件
	 */
	public boolean sendMail(String from, String[] to, String[] copyto, String subject, String content,
			List files, int port) {
		try {
			// 设置发信人
			mimeMsg.setFrom(new InternetAddress(from));
			// 设置接收人
			for (int i = 0; i < to.length; i++) {
				mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to[i]));
			}
			// 设置抄送人
			if (copyto != null && copyto.length > 0) {
				for (int i = 0; i < copyto.length; i++) {
					mimeMsg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(copyto[i]));
				}
			}
			// 设置主题
			mimeMsg.setSubject(subject);
			// 设置正文
			for (String file : files) {
				BodyPart bp = new MimeBodyPart();
				bp.setContent(content, "text/html;charset=utf-8");
				mp.addBodyPart(bp);
				// 设置附件
				bp = new MimeBodyPart();
				FileDataSource fileds = new FileDataSource(file);
				bp.setDataHandler(new DataHandler(fileds));
				bp.setFileName(MimeUtility.encodeText(fileds.getName(), "UTF-8", "B"));
				mp.addBodyPart(bp);
				mimeMsg.setContent(mp);
			}
			mimeMsg.saveChanges();
			// 发送邮件
			if (props.get("mail.smtp.auth").equals("true")) {
				Transport transport = session.getTransport("smtp");
				transport.connect((String) props.get("mail.smtp.host"), port, (String) props.get("username"),
						(String) props.get("password"));
				transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));
				// transport.sendMessage(mimeMsg,
				// mimeMsg.getRecipients(Message.RecipientType.CC));
				transport.close();
			} else {
				Transport.send(mimeMsg);
			}
			System.out.println("邮件发送成功");
		} catch (MessagingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return true;
	}
}

调用发送邮件函数：

public void sendMail() {
		String smtp = "smtp.qq.com";
		String username = "@qq.com";
		String password = "";
		String from = "@qq.com";
		String[] to = { "@qq.com" };
		String subject = "日志";
		String content = "你好！
本邮件发送自" + android.os.Build.MODEL + "。";
		String folder = Environment.getExternalStorageDirectory() + File.separator + AppUtil.toPath(this)
				+ File.separator + "logs" + File.separator; //获取目录路径
		List files = FileUtil.findFiles(folder); //获取文件夹下所有文件的绝对路径
		EmailManager email = new EmailManager(smtp, username, password);
		if(email.sendMail(from, to, null, subject, content, files, 465)) {
			for(String file : files) {
				FileUtil.deleteFile(file);
			}
		}
	}