Send email tools

1. Send email tools

import com.sun.mail.util.MailSSLSocketFactory;
import org.springframework.stereotype.Component;

import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;

import java.util.Properties;


/**
 * @ClassName: SendMailUtil
 * @Description:发送邮件工具类
 * @Author: Jin
 */
@Component
public class SendMailUtil {
    
    

    public static String myEmailAccount = "[email protected]";//发件人邮箱-我的QQ
    public static String myEmailPassword = "siuayhquejijbceb";//授权码-我的QQ
    public static String myEmailSMTPHost = "smtp.qq.com";

    public static int sendMail(String username,String cEmail,String subject,String content) throws Exception{
    
    
        int createMimeMessage = 0;

        //1.创建参数配置, 用于连接邮件服务器的参数配置
        Properties props = new Properties();//参数配置
        props.setProperty("mail.transport.protocol", "smtp");// 使用的协议（JavaMail规范要求）
        props.setProperty("mail.smtp.host", myEmailSMTPHost);// 发件人的邮箱的 SMTP 服务器地址
        props.setProperty("mail.smtp.auth", "true");// 需要请求认证

        //2.根据配置创建会话对象, 用于和邮件服务器交互
        Session session = Session.getInstance(props);
        session.setDebug(true);//设置为debug模式, 可以查看详细的发送 log

        //3.创建一封邮件
        MimeMessage message = new MimeMessage(session);

        //4.发件人：发件人邮箱、发件人昵称
        message.setFrom(new InternetAddress(myEmailAccount, username, "UTF-8"));

        //5.收件人：收件人邮箱、收件人名称
        message.setRecipient(MimeMessage.RecipientType.TO, new InternetAddress(cEmail, "进", "UTF-8"));

        //6.邮件主题
        message.setSubject(subject, "UTF-8");

        //7.邮件内容：可以使用html标签
        //content = "<a href='https://www.hao123.com/'>点击</a>";
        message.setContent(content, "text/html;charset=UTF-8");

        //8.设置发件时间
        message.setSentDate(new Date());

        //9.保存设置
        message.saveChanges();

        //10.根据 Session 获取邮件传输对象
        Transport transport = session.getTransport();

        //11.使用 邮箱账号 和 密码 连接邮件服务器, 这里认证的邮箱必须与 message 中的发件人邮箱一致, 否则报错
        transport.connect(myEmailAccount, myEmailPassword);

        //12.发送邮件, 发到所有的收件地址, message.getAllRecipients() 获取到的是在创建邮件对象时添加的所有收件人, 抄送人, 密送人
        transport.sendMessage(message, message.getAllRecipients());

        //13.关闭连接
        transport.close();

        createMimeMessage = 1;
        return createMimeMessage;
    }
}