Springboot实现发送邮件
本文实例为大家分享了Springboot实现发送邮件功能的具体代码,供大家参考,具体内容如下
第一章 背景介绍
1.1 使用场景
1、注册验证;
2、网站营销;
3、安全的最后一道防线;
4、提醒、监控警告;
5、触发机制。
1.2 邮件发送原理
1.邮件传输协议:SMTP协议和POP3协议
2.内容不断发展:IMAP和Mme协议
1.3 邮件发送流程
第二章 使用SpringBoot完成邮件发送
2.1 开发流程
2.2 开发简单文本邮件
2.2.1 引入相关jar包
在pom.xml中添加依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency>
2.2.2 配置邮箱参数
在配置文件里面配置:这里的密码是授权码,不是网页上的密码
spring.mail.host=smtp.163.com spring.mail.username=XXX@163.com spring.mail.password=XXX spring.mail.default-encoding=utf-8
2.2.3 封装SimpleMailMessage
SimpleMailMessage message = new SimpleMailMessage();
2.2.4 JavaMailSender进行发送
@Autowired private JavaMailSender mailSender; //使用JavaMailSender发送邮件 mailSender.send(message);
具体的实现:
/** * @Description: 发送邮件 * @Author: yzy * @Date: 2021/10/19 14:01 **/ @Service public class MailService { @Value("${spring.mail.username}") private String sendPeople; @Autowired private JavaMailSender mailSender; /** * @Description: 发送文本文件 * @author: yzy * @date: 2021/10/19 14:01 * @Param: * @return: */ public void sendSimpleMail(String to,String subject,String content) { SimpleMailMessage message = new SimpleMailMessage(); //接收方 message.setTo(to); //发送邮件的主题 message.setSubject(subject); //发送邮件内容 message.setText(content); //发送人 message.setFrom(sendPeople); //使用JavaMailSender发送邮件 mailSender.send(message); } }
测试:
package com.yzy.restaurant.mapper; import com.yzy.restaurant.MailService; 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; @RunWith(SpringRunner.class) @SpringBootTest public class MailTest { @Autowired private MailService mailService; @Test public void sendSimpleMailTest() { mailService.sendSimpleMail("yzy20162362@163.com","这是一个简单的demo","哈哈哈,发送成功了!"); } }
启动:
效果:
2.3 开发HTML邮件
上代码,在MailService 和MailTest 加
/** * @Description: 发送html邮寄 * @author: yzy * @date: 2021/10/19 14:58 * @Param: * @return: */ public void sendMailHtml(String to,String subject,String content) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message,true); helper.setTo(to); helper.setSubject(subject); helper.setText(content,true); helper.setFrom(sendPeople); mailSender.send(message); }
/** * @Description: 发送html邮寄 * @author: yzy * @date: 2021/10/19 14:58 * @Param: * @return: */ public void sendMailHtml(String to,String subject,String content) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message,true); helper.setTo(to); helper.setSubject(subject); helper.setText(content,true); helper.setFrom(sendPeople); mailSender.send(message); }
2.3 开发附件邮件
上代码,在MailService 和MailTest 加
/** * @Description: 发送附件邮件 * @author: yzy * @date: 2021/10/19 15:12 * @Param: * @return: */ public void sendAttachmentsMail(String to,String subject,String content,String filePath) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message,true); helper.setTo(to); helper.setSubject(subject); helper.setText(content,true); helper.setFrom(sendPeople); //读取 FileSystemResource file = new FileSystemResource(new File(filePath)); //获取文件名 String filename = file.getFilename(); //设置附件 helper.addAttachment(filename,file); //发送 mailSender.send(message); }
@Test public void sendAttachmentsMailTest() throws MessagingException { String filePath = "D:/玖佳智能 2020年3月第3周周工作汇总(3月16-3月20日)(1).xlsx"; mailService.sendAttachmentsMail("yzy20162362@163.com","这是一封附件邮件","哈哈哈,附件邮件发送成功了",filePath); }
2.4 图片邮件
上代码,在MailService 和MailTest 加
/** * @Description: 带图片邮件 * @author: yzy * @date: 2021/10/19 15:35 * @Param: * @return: */ public void sendPhotoMail(String to,String subject,String content,String rscPath, String rscId) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message,true); helper.setTo(to); helper.setSubject(subject); helper.setText(content,true); helper.setFrom(sendPeople); //读取 FileSystemResource rec = new FileSystemResource(new File(rscPath)); helper.addInline(rscId,rec); //发送 mailSender.send(message); }
@Test public void sendPhotoMailTest () throws MessagingException { String imgPath = "C:\\Users\\yzy\\Desktop\\微信图片_20210917201828.jpg"; String rsc = "0001"; mailService.sendPhotoMail("yzy20162362@163.com","这是一封图片邮件","哈哈哈,图片邮件发送成功了",imgPath,rsc); }
2.5 邮件模板
模板邮件特别适用于:
1.用户注册的邮件;2.忘记密码的邮件
我用的是thymeleaf,前提是themleaf已经配置好,上代码
新建emailTemplate的页面:
<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>邮件模板</title> </head> <body> 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!<br> <a rel="#" th:href="@{https://mail.163.com}" rel="external nofollow" >激活账户</a>> </body> </html>
测试代码:
@Test public void sendTemplateMailTest () throws MessagingException { Context content = new Context(); content.setVariable("id","111"); String emailContent = templateEngine.process("emailTemplate", content); mailService.sendMailHtml("yzy20162362@163.com","这是一封模板邮件",emailContent); }
效果:
常见错误:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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