利用mail.jar发送邮件(简单版)

来源：互联网发布：网络精灵怎么关闭编辑：程序博客网时间：2024/05/01 10:08

下载mail.jar
打开邮箱的smtp服务（以QQ邮箱为例）

点击设置，进入账户

开启SMTP服务
记住授权码，千万别泄露
测试代码：

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);        }    }}

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