spring boot实现发送邮件功能

第七任小仙女

已于 2022-06-07 14:21:28 修改

阅读量1.4k

点赞数

文章标签： spring boot java spring maven

于 2022-01-11 22:14:14 首次发布

本文链接：https://blog.youkuaiyun.com/lq_111/article/details/122442754

版权

本文介绍如何使用Spring Boot发送纯文本邮件及带有Thymeleaf模板的HTML邮件。首先通过配置邮件服务器和使用JavaMailSender实现普通文本邮件发送。接着，通过Thymeleaf创建动态HTML内容并整合到邮件中。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

一、发送text邮件

1. 导入jar包

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-mail</artifactId>
	<version>2.6.2</version>
</dependency>

2. 邮箱参数配置（以新浪邮箱为例）

3. 使用JavaMailSender发送邮件

配置文件application.properties

# MailProperties
spring.mail.host=smtp.sina.com
spring.mail.port=465
spring.mail.username=xxxxxx@sina.com  # 邮箱账号
spring.mail.password=xxxxxxxxxx       # 开通pop3/smtp服务时所给的授权码
spring.mail..protocol=smtps
spring.mail.properties.mail.smtp.ssl.enable=true

MailClient.java

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import org.springframework.mail.javamail.JavaMailSender;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

@Component
public class MailClient {
    private static final Logger logger = LoggerFactory.getLogger(MailClient.class);

    @Autowired
    private JavaMailSender mailSender;

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

    public void sendMail(String to,String subject,String content){
        try {
            MimeMessage message =  mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content,true);
            mailSender.send(helper.getMimeMessage());
        } catch (MessagingException e) {
           logger.error("发送邮件失败"+e.getMessage());
        }
    }
}

测试MailTest.java

import com.zx.community.util.MailClient;
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.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class MailTest {
    @Autowired
    private MailClient mailClient;
    @Test
    public void testTextMail(){
        mailClient.sendMail("xxxxxx@sina.com","TEST","hello,xxxxxx.");
    }
}

二、利用thymeleaf模板发送html邮件

1. 新建模板demo.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>邮箱示例</title>
</head>
<body>
    <p>欢迎您，<span style="color:red;" th:text="${username}"></span>!</p>
</body>
</html>

2. 测试 MailTest.java

import com.zx.community.util.MailClient;
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.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(classes = CommunityApplication.class)
public class MailTest {
    @Autowired
    private MailClient mailClient;

    @Autowired
    private TemplateEngine templateEngine;

    @Test
    public void testHtmlMail(){
        Context context = new Context();
        context.setVariable("username","sunday");

        String content = templateEngine.process("/mail/demo",context);  //模板存放的位置
        System.out.println(content);

        mailClient.sendMail("xxxxxq@sina.com","HTML",content);
    }
}