本文主要是介绍SpringBoot邮件发送，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
参考文章：https://blog.csdn.net/m0_56287495/article/details/136587403
- 导入依赖
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId>
</dependency>
- 修改yml
spring:mail:# 配置SMTP服务器地址host: smtp.qq.com# 发送者邮箱username: 123@qq.com# 授权码password: 123# 端口号465或587port: 587# 默认的邮件编码为UTF-8default-encoding: UTF-8# 配置SSL 加密工厂properties:# 设置邮件超时时间防止服务器阻塞timeout: 5000connection-timeout: 5000write-timeout: 5000mail:smtp:socketFactoryClass: javax.net.ssl.SSLSocketFactory# 表示开启DEBUG模式，这样邮件发送过程的日志会在控制台打印，方便排除问题debug: true
- 邮件发送
package com.tjx.email.server;import java.io.File;
import java.util.List;/*** <p>** </p>** @author tianjiaxin* @createTime 2024/6/1 16:09* @Description:*/
public interface IEmailService {/*** 普通邮件发送** @param to 发送对象* @param subject 主题* @param context 内容*/void sendText(String to, String subject, String context);/*** html邮件发送** @param to* @param subject* @param context*/void sendHtml(String to, String subject, String context);/*** 邮件发送** @param name 发送人名称* @param to 发送对象* @param subject 主题* @param content 内容* @param isHtml 是否为html* @param cc 抄送，多人用逗号隔开* @param bcc 密送，多人用逗号隔开* @param files 文件*/void send(String name, String to, String subject, String content, Boolean isHtml, String cc, String bcc, List<File> files);}
package com.tjx.email.server.impl;import cn.hutool.core.util.StrUtil;
import com.tjx.email.server.IEmailService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;import java.io.File;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import javax.mail.internet.InternetAddress;/*** <p>** </p>** @author tianjiaxin* @createTime 2024/6/1 16:14* @Description:*/
@Slf4j
@Service
public class EmailServiceImpl implements IEmailService {@Value("${spring.mail.username:123@qq.com}")private String from;@Autowiredprivate JavaMailSender javaMailSender;@Overridepublic void sendText(String to, String subject, String context) {this.send("TEXT提醒", to, subject, context, false, null, null, null);}@Overridepublic void sendHtml(String to, String subject, String context) {this.send("HTML提醒", to, subject, context, true, null, null, null);}@Overridepublic void send(String name, String to, String subject, String content, Boolean isHtml, String cc, String bcc, List<File> files) {Assert.isTrue(StrUtil.isNotBlank(from) && StrUtil.isNotBlank(to) && StrUtil.isNotBlank(subject) && StrUtil.isNotBlank(content),"发送人，接收人，主题，内容均不可为空！");try {// 用true作为第二个参数，表示创建的MimeMessageHelper对象将支持多部分内容，即可以添加附件或嵌入图片等MimeMessageHelper messageHelper = new MimeMessageHelper(javaMailSender.createMimeMessage(), true);// 发件人 eg:小明<2390696908@qq.com>messageHelper.setFrom(new InternetAddress(name + "<" + from + ">"));messageHelper.setTo(to.split(","));messageHelper.setSubject(subject);messageHelper.setText(content, isHtml);if (!StrUtil.isBlank(cc)) {messageHelper.setCc(cc.split(","));}if (!StrUtil.isBlank(bcc)) {messageHelper.setBcc(bcc.split(","));}if (!CollectionUtils.isEmpty(files)) {for (File file : files) {messageHelper.addAttachment(file.getName(), file);}}// 邮件发送时间
// messageHelper.setSentDate(new Date());Calendar calendar = Calendar.getInstance();Date time = calendar.getTime();calendar.add(Calendar.MINUTE, 5);Date newTime = calendar.getTime();System.out.println("当前时间：" + time);System.out.println("推迟5分钟：" + newTime);// 注意：不是真的是延迟推送，而是直接发送，这只是邮件上显示的发送时间messageHelper.setSentDate(newTime);javaMailSender.send(messageHelper.getMimeMessage());} catch (Exception e) {throw new RuntimeException(e);}}
}
- 测试代码
@Test
public void sendTest() {emailService.sendText("123@163.com", "测试主题", "测试内容");
}
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