springboot版本2.1.3,maven-web项目,pom文件

<!-- 邮件发送jar包 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!-- 邮件模板thymeleaf -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

教程学习于慕课网,课程链接:https://www.imooc.com/learn/1036

发送人邮件配置,本人使用的是网易163邮箱,可以替换成其他的

spring:
  mail:
    host: smtp.163.com
    username: 账号
    password: 密码
    default-encoding: utf-8

发送邮件Service

package ah.study.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;

@Service
public class MailService {

    /*发送人*/
    @Value("${spring.mail.username}")
    private String from;

    @Autowired
    private JavaMailSender mailSender;

    /**
     * 发送简单文本邮件
     * @param to 收件人
     * @param subject 邮件主题
     * @param text 邮件内容
     */
    public void sendSimpleEmailMessage(String to, String subject, String text) {
        SimpleMailMessage simpleMailMessage = new SimpleMailMessage();

        simpleMailMessage.setTo(to);
        simpleMailMessage.setSubject(subject);
        simpleMailMessage.setText(text);
        simpleMailMessage.setFrom(from);
        /*发送邮件*/
        mailSender.send(simpleMailMessage);
    }

    /**
     * 发送简单html邮件
     * @param to 收件人
     * @param subject 邮件主题
     * @param text 邮件内容
     * @throws MessagingException
     */
    public void sendHtmlMail(String to, String subject, String text) throws MessagingException {
        MimeMessage mimeMessage = mailSender.createMimeMessage();

        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);

        mimeMessageHelper.setTo(to);
        mimeMessageHelper.setSubject(subject);
        mimeMessageHelper.setText(text, true);
        mimeMessageHelper.setFrom(from);

        mailSender.send(mimeMessage);
    }

    /**
     * 发送带附件邮件
     * @param to 收件人
     * @param subject 邮件主题
     * @param text 邮件内容
     * @param filePath 附件地址
     * @throws MessagingException
     */
    public void sendAttachmentMail(String to, String subject, String text, String filePath) throws MessagingException {
        MimeMessage mimeMessage = mailSender.createMimeMessage();

        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
        mimeMessageHelper.setTo(to);
        mimeMessageHelper.setSubject(subject);
        mimeMessageHelper.setText(text, true);
        mimeMessageHelper.setFrom(from);

        FileSystemResource fileSystemResource = new FileSystemResource(new File(filePath));

        String fileName = fileSystemResource.getFilename();

        mimeMessageHelper.addAttachment(fileName, fileSystemResource);
        /*第二个附件*/
        mimeMessageHelper.addAttachment(fileName + "_test", fileSystemResource);
        /*实际开发中,如果需要发送多个附件,可以String filePath 参数改为 String[] filePaths 然后遍历即可*/
        mailSender.send(mimeMessage);
    }

    /**
     * 发送图片内容邮件
     * @param to 收件人
     * @param subject 邮件主题
     * @param text 邮件内容
     * @param imagePath 图片地址
     * @param imageId 区分不同图片的id
     */
    public void sendImageMail(String to, String subject, String text, String imagePath, String imageId) throws MessagingException {
        MimeMessage mimeMessage = mailSender.createMimeMessage();

        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
        mimeMessageHelper.setTo(to);
        mimeMessageHelper.setSubject(subject);
        mimeMessageHelper.setText(text, true);
        mimeMessageHelper.setFrom(from);

        FileSystemResource fileSystemResource = new FileSystemResource(new File(imagePath));

        mimeMessageHelper.addInline(imageId, fileSystemResource);
        /*第二张图片*/
        mimeMessageHelper.addInline(imageId, fileSystemResource);

        mailSender.send(mimeMessage);
    }

}

邮件发送测试方法,这里将目标邮箱xxx替换成自己的目标邮箱即可

这里,顺带提一下,markdown因为支持html标签,所以当我们需要插入html作为代码时,

会出现一些极度不友好的错误提示,意思是说markdown不知道到底是要显示html还是作为代码显示。

在本例中,稍作了改变,每个String变量中的<html>标签,左边部分使用<代替,这样就不报错了。

复制代码时,改过来即可。感觉很弱智啊!

package ah.study.service;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import javax.mail.MessagingException;

import static org.junit.Assert.*;

@RunWith(SpringRunner.class)
@SpringBootTest
public class MailServiceTest {

    @Autowired
    private MailService mailService;

    @Autowired
    private TemplateEngine templateEngine;

    @Test
    public void sendSimpleEmailMessage() {
        mailService.sendSimpleEmailMessage("目标邮箱xxx", "小马哥,这不是垃圾邮件", "springboot-mail:简单文本邮件发送");
    }

    @Test
    public void sendHtmlMail() throws MessagingException {
        String html_text = "<!DOCTYPE html>\n" +
            "&lt;html lang=\"en\">\n" +
            "<head>\n" +
            "    <meta charset=\"UTF-8\">\n" +
            "    <title>html邮件</title>\n" +
            "</head>\n" +
            "<body>\n" +
            "<h1>springboot-mail:简单html邮件发送</h1>\n" +
            "</body>\n" +
            "</html>";

        mailService.sendHtmlMail("目标邮箱xxx", "小马哥,强无敌", html_text);
    }

    @Test
    public void sendAttachmentMail() throws MessagingException {
        String filePath = "C:\\Users\\hucheng\\Desktop\\applicationContext.rar";
        mailService.sendAttachmentMail("目标邮箱xxx", "小马哥,再这样我要翻脸了", "spring配置文件附件", filePath);
    }

    /**
     * 发送多张不同图片
     * 1.创建多个img标签--[这里请仔细拼接cid......]
     * 2.创建多个imagePath、和imageId
     * 3.在方法中使用多个addInline(imageId, fileSystemResource);方法
     * 4.这里以相同图片作为示例
     * @throws MessagingException
     */
    @Test
    public void sendImageMail() throws MessagingException {
        String imagePath = "C:\\Users\\hucheng\\Desktop\\test.png";
        String imageId = "test001";
        String html_text = "<!DOCTYPE html>\n" +
            "&lt;html lang=\"en\">\n" +
            "<head>\n" +
            "    <meta charset=\"UTF-8\">\n" +
            "    <title>html邮件</title>\n" +
            "</head>\n" +
            "<body>\n" +
            "<img src=\"cid:" + imageId + "\"/>\n" +
            "<br/>" +
            "<img src=\"cid:" + imageId + "\"/>\n" +
            "</body>\n" +
            "</html>";
        mailService.sendImageMail("目标邮箱xxx", "小马哥,别说话,吻我", html_text, imagePath, imageId);
    }

    @Test
    public void templateMailTest() throws MessagingException {
        Context context = new Context();
        context.setVariable("id", "006");

        String emailContent = templateEngine.process("emailTemplate", context);

        mailService.sendHtmlMail("目标邮箱xxx", "南山法院来战", emailContent);
    }
}

thymeleaf邮件发送模板,地址是视频作者博客地址,有兴趣的同学可以研究一些gayhub博客

第二个很弱智的地方…下面的代码如果你是直接从html代码复制过来,那么对不起,肯定报错。但是如果你一行一行粘贴过来,弱智的通过了编写~~~

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>邮件模板</title>
</head>
<body>
<p>你好,感谢您的注册,这是一封验证邮件,请点击下面的连接完成注册,感谢您的支持!</p>
<a href="#" th:href="@{http://www.ityouknow.com/register/{id}(id=${id})}">激活账号</a>
</body>
</html>

原文链接: https://marshucheng1.github.io/2017/03/02/springboot-mail/

springboot邮件发送

springboot版本2.1.3,maven-web项目,pom文件

发送人邮件配置,本人使用的是网易163邮箱,可以替换成其他的

发送邮件Service

邮件发送测试方法,这里将目标邮箱xxx替换成自己的目标邮箱即可

thymeleaf邮件发送模板,地址是视频作者博客地址,有兴趣的同学可以研究一些gayhub博客