src/com/shop/Utils/MailUtils.java

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package com.shop.Utils;

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;

public class MailUtils {
//	email是邮箱地址   emailMsg是发送给邮箱的内容
	public static void sendMail(String email, String emailMsg)
			throws AddressException, MessagingException {
		// 1.创建一个程序与邮件服务器会话对象 Session
		Properties props = new Properties();
		props.setProperty("mail.host", "localhost");
		// 创建验证器
		Authenticator auth = new Authenticator() {
			public PasswordAuthentication getPasswordAuthentication() {
				return new PasswordAuthentication("service@shop.com", "111");
			}
		};
		Session session = Session.getInstance(props, auth);
		Message message = new MimeMessage(session);

		message.setFrom(new InternetAddress("service@shop.com")); // 设置发送者

		message.setRecipient(RecipientType.TO, new InternetAddress(email)); // 设置发送方式与接收者

		message.setSubject("用户激活");
		message.setContent(emailMsg, "text/html;charset=utf-8");
		Transport.send(message);
	}
}