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

# qq郵箱
spring.mail.username=1585526224@qq.com
# 剛剛生成的授權(quán)碼
spring.mail.password=ljoghujwhbkpbaff
# qq郵箱的host
spring.mail.host=smtp.qq.com
#開(kāi)啟加密驗(yàn)證(qq郵箱)
spring.mail.properties.mail.smtp.ssl.enable=true

package com.tian.emaildemo;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;

@SpringBootTest
class EmaildemoApplicationTests {

    @Autowired
    JavaMailSenderImpl mailSender;

    @Test
    void contextLoads() {
        SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
        // 郵件主題
        simpleMailMessage.setSubject("你好");
        // 郵件文本
        simpleMailMessage.setText("Hello world");
        // 接收方
        simpleMailMessage.setTo("1585526224@qq.com");
        // 發(fā)送方
        simpleMailMessage.setFrom("1585526224@qq.com");
        // 發(fā)送郵件
        mailSender.send(simpleMailMessage);
    }
}

@Test
    void contextLoads() throws MessagingException {
        SimpleMailMessage simpleMailMessage = new SimpleMailMessage();
        //復(fù)雜郵件
        MimeMessage mimeMessage = mailSender.createMimeMessage();
        //組裝
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);

        mimeMessageHelper.setSubject("復(fù)雜郵件");
//        發(fā)送文本: html文本
        mimeMessageHelper.setText("<p style='color: orange;'>\n" +
                "                    ?？驼勫?，煙濤微茫信難求；<br>\n" +
                "\n" +
                "                    越人語(yǔ)天姥，云霞明滅或可睹。<br>\n" +
                "\n" +
                "                    天姥連天向天橫，勢(shì)拔五岳掩赤城。<br>\n" +
                "\n" +
                "                    天臺(tái)四萬(wàn)八千丈，對(duì)此欲倒東南傾。<br>\n" +
                "\n" +
                "                    (四萬(wàn) 一作：一萬(wàn))我欲因之夢(mèng)吳越，一夜飛度鏡湖月。<br>\n" +
                "\n" +
                "                    (度 通：渡)湖月照我影，送我至剡溪。<br>\n" +
                "\n" +
                "                    謝公宿處今尚在，淥水蕩漾清猿啼。<br>\n" +
                "                    <br>\n" +
                "                    腳著謝公屐，身登青云梯。<br>\n" +
                "\n" +
                "                    半壁見(jiàn)海日，空中聞天雞。<br>\n" +
                "\n" +
                "                    千巖萬(wàn)轉(zhuǎn)路不定，迷花倚石忽已暝。<br>\n" +
                "\n" +
                "                    熊咆龍吟殷巖泉，栗深林兮驚層巔。<br>\n" +
                "\n" +
                "                    云青青兮欲雨，水澹澹兮生煙。<br>\n" +
                "\n" +
                "                    列缺霹靂，丘巒崩摧。<br>\n" +
                "                    <br>\n" +
                "                    洞天石扉，訇然中開(kāi)。<br>\n" +
                "\n" +
                "                    青冥浩蕩不見(jiàn)底，日月照耀金銀臺(tái)。<br>\n" +
                "\n" +
                "                    霓為衣兮風(fēng)為馬，云之君兮紛紛而來(lái)下。<br>\n" +
                "\n" +
                "                    虎鼓瑟兮鸞回車(chē)，仙之人兮列如麻。<br>\n" +
                "\n" +
                "                    忽魂悸以魄動(dòng)，恍驚起而長(zhǎng)嗟。<br>\n" +
                "                    <br>\n" +
                "                    惟覺(jué)時(shí)之枕席，失向來(lái)之煙霞。<br>\n" +
                "\n" +
                "                    世間行樂(lè)亦如此，古來(lái)萬(wàn)事東流水。<br>\n" +
                "\n" +
                "                    別君去兮何時(shí)還？<br>\n" +
                "\n" +
                "                    且放白鹿青崖間。<br>\n" +
                "\n" +
                "                    須行即騎訪名山。<br>\n" +
                "\n" +
                "                    安能摧眉折腰事權(quán)貴，使我不得開(kāi)心顏!<br>\n" +
                "                </p>", true);//true,開(kāi)啟html解析
//         發(fā)送圖片
        mimeMessageHelper.addAttachment("重慶理工大學(xué)夜景.jpg", new File("D:\\圖片\\schoolNight.jpg"));

        mimeMessageHelper.setTo("1585526224@qq.com");
        mimeMessageHelper.setFrom("1585526224@qq.com");
        mailSender.send(mimeMessage);
    }

 public void SendMail(Boolean html, String title, String text, File file, String sendTo, String sendFrom) throws MessagingException {
        //復(fù)雜郵件
        MimeMessage mimeMessage = mailSender.createMimeMessage();
        //組裝
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);

        mimeMessageHelper.setSubject(title);
        mimeMessageHelper.setText(text, html);//true,開(kāi)啟html解析
        mimeMessageHelper.addAttachment("1.jpg", file);

        mimeMessageHelper.setTo(sendTo);
        mimeMessageHelper.setFrom(sendFrom);
        mailSender.send(mimeMessage);
    }