邮箱验证

import java.util.Date;
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.InternetAddress;
import javax.mail.internet.MimeMessage;
/**
 * 邮件工具类
 * @author hsh
 *
 */
public class MailUtil {
    public static final String HOST = "smtp.163.com";  
    public static final String PROTOCOL = "smtp";     
    public static final int PORT = 25;  
    public static final String FROM = "lensener@163.com";//发件人的email  
    public static final String PWD = "******";//发件人密码  
    /**
     * 获取Session
     * 
     * @return
     */
    private static Session getSession() {
        Properties props = new Properties();
        props.put("mail.smtp.host", HOST);// 设置服务器地址
        props.put("mail.store.protocol", PROTOCOL);// 设置协议
        props.put("mail.smtp.port", PORT);// 设置端口
        props.put("mail.smtp.auth", true);

        Authenticator authenticator = new Authenticator() {

            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(FROM, PWD);
            }

        };
        Session session = Session.getDefaultInstance(props, authenticator);

        return session;
    }

    /**
     * 
     * @param toEmail 发送地址
     * @param content 邮件内容
     */
    public static void send(String toEmail, String content) {
        Session session = getSession();
        try {
            //System.out.println("--send--" + content);
            // Instantiate a message
            Message msg = new MimeMessage(session);
            // Set message attributes
            msg.setFrom(new InternetAddress(FROM));
            InternetAddress[] address = { new InternetAddress(toEmail) };
            msg.setRecipients(Message.RecipientType.TO, address);
            msg.setSubject("账号激活邮件");
            msg.setSentDate(new Date());
            msg.setContent(content, "text/html;charset=utf-8");
            // Send the message
            Transport.send(msg);
        } catch (MessagingException mex) {
            mex.printStackTrace();
        }
    }

}