邮件发送工具

springBoot邮件发送工具

pom

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

yaml

spring:
  mail:
    host: smtp.126.com
    port: 25
    username: 邮箱登录账户
    password: 邮箱授权码

import cn.hutool.core.lang.Dict;
import cn.hutool.core.util.StrUtil;
import cn.hutool.extra.spring.SpringUtil;
import org.springframework.boot.autoconfigure.mail.MailProperties;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;

import javax.mail.internet.MimeMessage;
import java.util.Map;

/**
 * @version 1.0
 * @date 2022/6/13 17:02
 * @since : JDK 11
 */
public class MailUtils {

    private static final MailProperties MAIL_INFO = SpringUtil.getBean(MailProperties.class);

    /**
     * 发送富文本邮件
     *
     * @param sender     发送器
     * @param from       发送人
     * @param subject    发送主题
     * @param parameters 模板参数
     * @param template   邮件模板
     * @param to         收件人
     * @return
     */
    public static boolean send(JavaMailSender sender, String from, String subject, Map<String, Object> parameters, String template, String... to) {
        try {
            MimeMessage mimeMessage = sender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            String format = StrUtil.format(template, parameters);
            helper.setText(format, true);
            sender.send(mimeMessage);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static final String EVENT_SEND_TEMPLATE = new StringBuffer()
            .append("<p style=\"margin:20;padding:0;font-size:20px;line-height:30px;color:#333;font-family:arial,sans-serif;font-weight:bold\">亲爱的{userName}：</p>")
            .append("<p style=\"margin: 50px;padding:0;line-height:30px;font-size:14px;color:#333;font-family:'宋体',arial,sans-serif\">{context}</p>")
            .append("<p style=\"margin:0;padding:0;font-size:12px;color:#333;font-family:'宋体',arial,sans-serif\">四川九通智路科技有限公司</p>")
            .append("<p style=\"margin:0;padding:0;font-size:12px;color:#333;font-family:'宋体',arial,sans-serif\">Tel：028-86660296</p>")
            .append("<p style=\"margin:0;padding:0;font-size:12px;color:#333;font-family:'宋体',arial,sans-serif\">Email: jiutong@jtsmartway.com</p>")
            .append("<p style=\"margin:0;padding:0;font-size:12px;color:#333;font-family:'宋体',arial,sans-serif\">Addr:中国(四川)自由贸易试验区成都市高新区天府一街535号2幢10楼1002号</p>")
            .append("<img src=\"https://s1.ax1x.com/2022/06/13/XRoF3t.jpg\" style=\"border:1px solid #dfdfdf;padding:5px;width: 150px;\">")
            .toString();

    private static final String EVENT_SUBJECT = "设备告警";

    /**
     * 事件发送
     *
     * @param sender   发送器
     * @param userName 模板参数：题头
     * @param context  模板参数：邮件主要内容
     * @param to       收件人
     * @return
     */
    public static boolean sendForEventMail(JavaMailSender sender, String userName, String context, String... to) {
        send(sender, MAIL_INFO.getUsername(), EVENT_SUBJECT, Dict.of("userName", userName, "context", context), EVENT_SEND_TEMPLATE, to);
    }
}