Java 邮箱发送

QQ邮箱 - 设置 - 账户 - POP3/SMTP服务

	javax.mail
	mail
	1.4.5

package com.util;

import javax.mail.Address;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import com.sun.mail.util.MailSSLSocketFactory;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;

public class UtilEmail {

    public static void main(String[] args) {

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

        String emailAddress = "xxx@qq.com";
        String emailTitle = "邮箱验证(邮件主题)(邮件标题)";
        String emailContent = "您的验证码是123456(邮件内容)n" + sdf.format(new Date());

        try {
            UtilEmail.sendEmail(emailAddress, emailTitle, emailContent);
            System.out.println("邮件发送成功");
        }
        catch (Exception e){
            System.out.println("邮件发送失败");
        }
    }
    //=================================


    //邮件服务器主机名
    //QQ邮箱的 SMTP 服务器地址为: smtp.qq.com
    private static String myEmailSMTPHost = "smtp.qq.com";

    //发件人邮箱
    private static String myEmailAccount = "xxx@qq.com";

    //发件人邮箱密码（授权码）
    //在开启SMTP服务时会获取到一个授权码，把授权码填在这里
    //QQ邮箱 - 设置 - 账户 - POP3/SMTP服务
    private static String myEmailPassword = "oiyiiqqmqoyshgcc";

    public static void sendEmail(String emailAddress, String emailTitle, String emailContent) throws Exception{

        Properties props = new Properties();

        // 开启debug调试
        props.setProperty("mail.debug", "true");

        // 发送服务器需要身份验证
        props.setProperty("mail.smtp.auth", "true");

        // 端口号
        props.put("mail.smtp.port", 465);

        // 设置邮件服务器主机名
        props.setProperty("mail.smtp.host", myEmailSMTPHost);

        // 发送邮件协议名称
        props.setProperty("mail.transport.protocol", "smtp");

        
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);

        //设置是否使用ssl安全连接（一般都使用）
        props.put("mail.smtp.ssl.enable", "true");
        props.put("mail.smtp.ssl.socketFactory", sf);

        //创建会话
        Session session = Session.getInstance(props);

        //获取邮件对象
        //发送的消息，基于观察者模式进行设计的
        Message msg = new MimeMessage(session);

        //设置邮件标题
        msg.setSubject(emailTitle);

        //设置显示的发件时间
        msg.setSentDate(new Date());

        //设置邮件内容
        msg.setText(emailContent);

        //设置发件人邮箱
        // InternetAddress 的三个参数分别为: 发件人邮箱, 显示的昵称(只用于显示, 没有特别的要求), 昵称的字符集编码
        String nickname = "lmy"; nickname = "";
        msg.setFrom(new InternetAddress(myEmailAccount, nickname,"UTF-8"));

        //得到邮差对象
        Transport transport = session.getTransport();

        //连接自己的邮箱账户
        //密码不是自己QQ邮箱的密码，而是在开启SMTP服务时所获取到的授权码
        //connect(host, user, password)
        transport.connect( myEmailSMTPHost, myEmailAccount, myEmailPassword);

        //发送邮件
        transport.sendMessage(msg, new Address[] { new InternetAddress(emailAddress) });

        //将该邮件保存到本地
        OutputStream out = new FileOutputStream("MyEmail.eml");
        msg.writeTo(out);
        out.flush();
        out.close();

        transport.close();
    }
}