添加依赖

                 
      
       org.springframework.boot
                  
      
       spring-boot-starter-mail
                  
      
       2.1.7.RELEASE
              
     

配置：去邮箱中开启SMTP服务

注意密码是邮箱的生成授权码

代码：

1 package com.drawnblue.springbootemail; 2  3 import org.springframework.beans.factory.annotation.Autowired; 4 import org.springframework.beans.factory.annotation.Value; 5 import org.springframework.core.io.FileSystemResource; 6 import org.springframework.mail.SimpleMailMessage; 7 import org.springframework.mail.javamail.JavaMailSender; 8 import org.springframework.mail.javamail.MimeMessageHelper; 9 import org.springframework.stereotype.Component;10 11 import javax.mail.MessagingException;12 import javax.mail.internet.MimeMessage;13 import java.io.File;14 import java.util.Date;15 16 @Component17 public class EmailUtil {18     private String from="1248375279@qq.com";19     @Autowired20     private JavaMailSender sender;21 22     /**23      * 发送一般文本邮件24      * @param to25      * @param subject26      * @param content27      */28     public void sendTextEmail(String to,String subject,String content){29         SimpleMailMessage message = new SimpleMailMessage();30         message.setFrom(from);31         message.setTo(to);32         message.setSubject(subject);33         message.setText(content);34         message.setSentDate(new Date());35         sender.send(message);36     }37 38     /**39      * @param to40      * @param subject41      * @param content42      * @param imgPath43      * @param imgId44      * @throws MessagingException45      * 发送带图片并显示在邮件中的邮件46      */47     public void sendImageMail(String to, String subject, String content, String imgPath, String imgId) throws MessagingException {48         //创建message49         MimeMessage message = sender.createMimeMessage();50         MimeMessageHelper helper = new MimeMessageHelper(message, true);51         //发件人52         helper.setFrom(from);53         //收件人54         helper.setTo(to);55         //标题56         helper.setSubject(subject);57         //true指的是html邮件，false指的是普通文本58         helper.setText(content, true);59         //添加图片60         FileSystemResource file = new FileSystemResource(new File(imgPath));61         helper.addInline(imgId, file);62         //发送邮件63         sender.send(message);64     }65 66 }

测试

package com.drawnblue.springbootemail;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 javax.mail.MessagingException;@RunWith(SpringRunner.class)@SpringBootTestpublic class SpringbootEmailApplicationTests {@AutowiredEmailUtil text;    /**     * 文本     */    @Test    public void contextLoads() {        text.sendTextEmail("yourEmailAddr","test","helloworld!!!");    }    /**     * @throws MessagingException     * 发送带图片的邮件     */    @Test    public void sendImageEmailTest() throws MessagingException {        text.sendImageMail("yourEmailAddr","image测试","
helloWorld
","G:\\壁纸\\timg.jpg","001");    }}

效果

 

 

 要了解其他的也可以参考博文