Java-Mail 发送邮件

package com.buyu.mail;

import java.util.Properties;

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;

public class Mail {
	/**
	 * 发送邮件
	 */
	public static boolean send(String smtp, String from, String to, String subject, String content, String username,
			String password) {
		try {
			// 1.设置SMTP主机
			Properties props = System.getProperties();
			props.put("mail.smtp.host", smtp);
			props.put("mail.smtp.auth", "true");

			// 2.创建MIME邮件对象
			Session session = Session.getDefaultInstance(props, null); // 获得邮件会话对象
			MimeMessage mimeMsg = new MimeMessage(session); // 创建MIME邮件对象
			Multipart mp = new MimeMultipart(); // 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

			// 5.设置邮件主题
			mimeMsg.setSubject(subject);

			// 6.设置邮件正文
			BodyPart bp = new MimeBodyPart();
			bp.setContent("" + content, "text/html;charset=GBK");
			mp.addBodyPart(bp);

			// 7.设置发件人和收件人
			mimeMsg.setFrom(new InternetAddress(from));
			mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));

			// 8.开始发送邮件
			mimeMsg.setContent(mp);

			Transport transport = session.getTransport("smtp");
			transport.connect((String) props.get("mail.smtp.host"), username, password);
			transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));

			transport.close();
			System.out.println("发送邮件成功！");
		} catch (Exception e) {
			System.err.println("邮件发送失败！");
			return false;
		}
		return true;
	}

}

String smtp = "smtp.163.com";
String from = "xxx@163.com";
String to = "xxx@qq.com";
String subject = "主题xxx";
String content = "内容xxx";
String username = "xxx@163.com";
String password = "密码xxx";
Mail.send(smtp, from, to, subject, content, username, password);