import java.util.Properties;

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

public class EmailTest {

    public static void main(String[] args) throws Exception{
        Properties props = new Properties();
        props.setProperty("mail.smtp.auth", "true");
        props.setProperty("mail.transport.protocol", "smtp");
        props.setProperty("mail.host", "smtp.163.com");
        Session session = Session.getInstance(props,
                new Authenticator() {
                    protected PasswordAuthentication getPasswordAuthentication(){
                        return new PasswordAuthentication("xxx","xxx");//这里分别填写发送email的用户名、密码
                    }
                }
        );
        session.setDebug(true);
        
        Message msg = new MimeMessage(session);
        msg.setFrom(new InternetAddress("xxx"));//这里是发送方的email地址如：xxx@163.com
        msg.setSubject("test javamail");
        msg.setRecipients(RecipientType.TO, 
                InternetAddress.parse("xxx"));//这里是接收方的email地址如：xxx@163.com
        msg.setContent("<a href=\"http://www.google.cn\">谷歌</a>","text/html;charset=gb2312"); 
        
        Transport.send(msg);
    }
}

------解决方案--------------------
Jar包引进去了没有！

------解决方案--------------------

应该还有吧？？