package com.core;import java.security.GeneralSecurityException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;import com.sun.mail.util.MailSSLSocketFactory;public class MailTool {public static void main(String[] args) throws MessagingException, GeneralSecurityException {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");// 设置邮件服务器主机名props.setProperty("mail.host", "smtp.qq.com");// 发送邮件协议名称props.setProperty("mail.transport.protocol", "smtp");// 开启SSL加密，否则会失败MailSSLSocketFactory sf = new MailSSLSocketFactory();sf.setTrustAllHosts(true);props.put("mail.smtp.ssl.enable", "true");props.put("mail.smtp.ssl.socketFactory", sf);// 创建sessionSession session = Session.getInstance(props);// 创建邮件Message msg = new MimeMessage(session);// 设置标题msg.setSubject("测试邮件");// 编辑内容StringBuilder builder = new StringBuilder();builder.append("这是一封java mail测试邮件\n");builder.append("这是第二行");builder.append("\n时间 " + getStringDate());// 设置内容
        msg.setText(builder.toString());// 发送的邮箱地址msg.setFrom(new InternetAddress("自己的邮箱@qq.com"));// 通过session得到transport对象Transport transport = session.getTransport();// 连接邮件服务器：邮箱类型，帐号，授权码代替密码（更安全）transport.connect("smtp.qq.com", "自己的邮箱@qq.com", "授权码");// 发送邮件transport.sendMessage(msg, new Address[] { new InternetAddress("目标邮箱@qq.com") });transport.close();}/*** 获取当前时间* @return String*/public static String getStringDate() {Date currentTime = new Date();SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");String dateString = formatter.format(currentTime);return dateString;}}