利用mail.jar发送邮件(简单版)

package test;

import java.io.UnsupportedEncodingException;
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.MimeMessage;

public class Test {
static final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
public static void main(String[] args) {
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.qq.com");//服务器名称
//设置SSL,否则QQ邮箱不允许发送
props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.port", "465");
props.setProperty("mail.smtp.socketFactory.port", "465");

props.put("mail.smtp.from", "2028953318@qq.com");//发送方邮箱地址
props.put("mail.smtp.auth", "true");//需要验证，不验证会提示没有权限发送
props.put("mail.smtp.user", "YuFeng");//发送方的发送名;
props.put("mail.debug", "true");//输出相关信息(可以设置false不输出)
Authenticator auth = new Authenticator() {//设置验证信息
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("2028953318@qq.com", "*******");//用户名+授权码
}
};
Session session = Session.getInstance(props, auth);

try {
MimeMessage msg = new MimeMessage(session);
msg.setFrom();
msg.setRecipients(Message.RecipientType.TO,
"*@163.com");//
msg.setSubject("主题");
msg.setSentDate(new Date());
try {
msg.setText(new String("正文\n".getBytes(),"UTF-8"));//设置编码格式
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Transport.send(msg);
} catch (MessagingException mex) {
System.out.println("send failed, exception: " + mex);
}
}
}