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SpringBoot实现发邮件功能+邮件内容带模版

news 2025/3/19 11:36:54

发送简单邮件+模版邮件

1.pom引入依赖

        <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId><version>2.5.13</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency>

2.配置yaml文件

  mail:host: smtp.qq.comport: 465  # 必须改用SSL专用端口username: 配置发件人的邮箱password: 发件人的秘钥不是登录密码properties:mail:smtp:auth: truessl:enable: true  # 显式启用SSLsocketFactory:class: javax.net.ssl.SSLSocketFactory  # 指定SSL工厂starttls:enable: false  # 禁用STARTTLS（与SSL互斥）

3.代码

    @GetMapping("/sendSimpleMail")public Result sendMail() {String recipientStr ="收件人邮箱";SendMailParam sendMailParam = new SendMailParam();sendMailParam.setContent("你好，现在是 "+System.currentTimeMillis()+"，邮件发送成功！");mailUtil.sendSimpleMessage(recipientStr, "测试邮件主题", sendMailParam, "");return Result.ok();}@GetMapping("/sendTemplateMail")public Result sendTemplateMail() {String recipientStr ="收件人邮箱";mailUtil.sendThemplateMessage(recipientStr,"测试邮件主题");return Result.ok();}

import com.hmdp.config.MailConfig;
import com.hmdp.entity.SendMailParam;
import com.hmdp.service.ISendMailService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.*;/*** @author don* @version 1.0.0* @ClassName SendMailServiceImpl.java* @Description TODO* @createTime 2024年03月06日 17:38:00*/
@Service
@Slf4j
public class SendMailServiceImpl implements ISendMailService {@Autowiredprivate JavaMailSenderImpl mailSender;@Autowiredprivate TemplateEngine templateEngine;@Value("${spring.mail.username}")private String from;@Overridepublic void sendSimpleMessage(String to, String subject, SendMailParam sendMailParam, String fileList) {try {MimeMessage mailMessage=mailSender.createMimeMessage();MimeMessageHelper helper=new MimeMessageHelper(mailMessage,true);//设置寄件人helper.setFrom(from);//设置邮件标题helper.setSubject(subject);//设置邮件内容helper.setText(sendMailParam.getContent());//设置收件人helper.setTo(to);// 发送邮件mailSender.send(mailMessage);} catch (MessagingException e) {e.printStackTrace();}}@Overridepublic void sendThemplateMessage(String to, String subject) {try {MimeMessage mailMessage = mailSender.createMimeMessage();MimeMessageHelper helper = new MimeMessageHelper(mailMessage, true);//设置寄件人helper.setFrom(from);//设置邮件标题helper.setSubject(subject);//设置收件人helper.setTo(to);//设置模板//thymeleaf模版解析成StringContext ctx = new Context();ctx.setVariable("mailSubject", "测试主题");ctx.setVariable("noticeTime", "2025-03-18");ctx.setVariable("noticeNumber", "ASDF456");ctx.setVariable("name", "张三");ctx.setVariable("billDate", "2025-03-18");ctx.setVariable("groupCode", "45");ctx.setVariable("creator", "admin");ctx.setVariable("content", "hello world !");//模板填充数据String htmlContent = templateEngine.process("data", ctx);helper.setText(htmlContent, true);// 发送邮件mailSender.send(mailMessage);} catch (MessagingException e) {throw new RuntimeException(e);}}}

4.模板位置及内容

<!DOCTYPE html>
<html xmlns:th="http://www.w3.org/1999/xhtml">
<head> 
<meta charset="utf-8"> 
<title>表格</title> 
</head>
<body><table border="1">
<tr><td><h4>邮件主题</h4></td><td colspan="5"><a th:href="@{http://ip/}" th:text="${mailSubject}"> </a></td>
</tr>
<tr><td><h4>通知时间</h4></td><td colspan="5" th:text="${noticeTime}"></td>
</tr>
<tr><td><h4>通知类型</h4></td><td colspan="3"><span th:text="${noticeText}" th:style="${noticeText == '正常通知' ? 'color: green;' : 'color: red;' }"></span></td> <td><h4>任务编号</h4></td><td  colspan="3"><span style="color: red;"><span th:text="${noticeNumber}"></span></span></td> 
</tr>
<tr><td><h4>姓名</h4></td><td colspan="3" th:text="${name}"></td> <td><h4>日期</h4></td><td  colspan="3" th:text="${billDate}"></td> 
</tr>
<tr>代码</h4></td><td colspan="3" th:text="${groupCode}"></td> <td><h4>创建者</h4></td><td  colspan="3" th:text="${creator}"></td> 
</tr>
<tr><td><h4>通知内容</h4></td><td colspan="5"><div><span th:utext="${content}"></span></div></td>
</tr>
</table></body>
</html>
<style>table, th, td {border: 1px solid black;border-collapse: collapse;}div {margin-top:10px;}.icon {text-align: center;display: inline-block;width: 20px;height: 20px;background-color: yellowgreen;border-radius: 50%;color: #fff;margin-right: 4px;font-weight: bold;}.icon.success {background-color: yellowgreen;line-height: 22px;}.icon.error {background-color: red;line-height: 18px;}td {padding: 0px 10px;}</style>