您现在的位置是：首页 > 后台技术 > JavaJava

springboot发送邮件(图文)

第十三双眼睛2022-09-12【Java】人已围观

简介springboot发送邮件

本文记录如何利用springboot项目来发送邮件
1首先要找到邮箱授权码
以QQ邮箱为例，登录邮箱以后，点击设置，账户，开启POP3/SMTP服务，点击生成授权码
2新建一个maven项目，导入依赖

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>2.0.1.RELEASE</version>
</dependency>

在application.properties配置文件中写入以下配置

# 邮件
spring.mail.default-encoding=utf-8
# 配置 SMTP 服务器地址
spring.mail.host=smtp.qq.com
#发送方邮件名
spring.mail.username=xxxx@qq.com
#授权码
spring.mail.password=xxxxxx

代码编写：

public class MailRequest implements Serializable {

   private static final long serialVersionUID = 1L;

   /**
* 接收人
*/
private String sendTo;

/**
* 邮件主题
*/
private String subject;

/**
* 邮件内容
*/
private String text;

/**
* 附件路径
*/
private String filePath;
}

public interface SendMailService {

/**
* 简单文本邮件
*
* @param mailRequest
* @return
*/
void sendSimpleMail(MailRequest mailRequest);

/**
* Html格式邮件,可带附件
*
* @param mailRequest
* @return
*/
void sendHtmlMail(MailRequest mailRequest);
}

@Slf4j
@Service
public class SendMailServiceImpl implements SendMailService {

//注入邮件工具类
@Autowired
private JavaMailSender javaMailSender;

@Value("${spring.mail.username}")
private String sendMailer;

public void checkMail(MailRequest mailRequest) {
Assert.notNull(mailRequest,"邮件请求不能为空");
Assert.notNull(mailRequest.getSendTo(), "邮件收件人不能为空");
Assert.notNull(mailRequest.getSubject(), "邮件主题不能为空");
Assert.notNull(mailRequest.getText(), "邮件收件人不能为空");
}

@Override
public void sendSimpleMail(MailRequest mailRequest) {
SimpleMailMessage message = new SimpleMailMessage();
checkMail(mailRequest);
//邮件发件人
message.setFrom(sendMailer);
//邮件收件人 1或多个
message.setTo(mailRequest.getSendTo().split(","));
//邮件主题
message.setSubject(mailRequest.getSubject());
//邮件内容
message.setText(mailRequest.getText());
//邮件发送时间
message.setSentDate(new Date());

javaMailSender.send(message);
log.info("发送邮件成功:{}->{}",sendMailer,mailRequest.getSendTo());
}

@Override
public void sendHtmlMail(MailRequest mailRequest) {
MimeMessage message = javaMailSender.createMimeMessage();
checkMail(mailRequest);
try {
MimeMessageHelper helper = new MimeMessageHelper(message,true);
//邮件发件人
helper.setFrom(sendMailer);
//邮件收件人 1或多个
helper.setTo(mailRequest.getSendTo().split(","));
//邮件主题
helper.setSubject(mailRequest.getSubject());
//邮件内容
helper.setText(mailRequest.getText(),true);
//邮件发送时间
helper.setSentDate(new Date());

String filePath = mailRequest.getFilePath();
if (StringUtils.hasText(filePath)) {
FileSystemResource file = new FileSystemResource(new File(filePath));
String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
helper.addAttachment(fileName,file);
}
javaMailSender.send(message);
log.info("发送邮件成功:{}->{}",sendMailer,mailRequest.getSendTo());
} catch (MessagingException e) {
log.error("发送邮件时发生异常！",e);
}
}
}

@RestController
@RequestMapping("/mail")
public class MailController {

   @Autowired
   private SendMailService sendMailService;

   @RequestMapping("sendMail")
   public String sendMail() {
       MailRequest request = new MailRequest();
       request.setSendTo("xxxxx@qq.com");
       request.setSubject("测试发送邮件");
       request.setText("测试发送邮件");
       sendMailService.sendSimpleMail(request);
       return "hello world";
   }
}

亲测可以发送成功

Tags：

很赞哦！ ()

上一篇：Java8新特性(图文)

下一篇：代码简洁之道-lombok(图文)