Spring Boot 使用 JavaMailSender 发送邮件

Spring Boot Java About 2,696 words

添加依赖

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

添加配置

配置用户名、密码、邮件服务host和端口。

spring:
  mail:
    username: 123@test.com
    host: smtp.test.com
    password: testpwd
    port: 25

发送简易邮件

设置发送账号、接收账号、抄送账号、密送账号。

@SpringBootApplication
public class DemoApplication implements ApplicationRunner {

    @Resource
    private JavaMailSender javaMailSender;

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

    @Override
    public void run(ApplicationArguments args) throws Exception {
        //建立邮件消息
        SimpleMailMessage mainMessage = new SimpleMailMessage();
        //发送方
        mainMessage.setFrom("123@test.com");
        //接收方
        mainMessage.setTo("456@test.com");
        //抄送
        mainMessage.setCc("789@test.com");
        //密送
        mainMessage.setBcc("111@test.com");
        //发送的标题
        mainMessage.setSubject("主题2");
        //发送的内容
        mainMessage.setText("内容2");
        javaMailSender.send(mainMessage);
    }
}

发送复杂邮件

带附件、富文本邮件。

注意：附件尽可能选择使用DataSource而非File。富文本使用img标签时需有占位符cid:xxx，其中cid是固定格式，xxx是自定义标识，在addInline方法中设置xxx标识对应的流。

MimeMessage mimeMessage = javaMailSender.createMimeMessage();
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
mimeMessageHelper.setFrom("zhangbj94@chinaunicom.cn");
mimeMessageHelper.setTo("zhangbj94@chinaunicom.cn");
mimeMessageHelper.setSubject("主题3333");

ClassPathResource classPathResource = new ClassPathResource("application.yml");

File attachmentFile = classPathResource.getFile();
mimeMessageHelper.addAttachment(MimeUtility.encodeWord("附件1:application.yml"), attachmentFile);

ByteArrayDataSource attachmentDataSource = new ByteArrayDataSource(classPathResource.getInputStream(), "application/octet-stream");
mimeMessageHelper.addAttachment(MimeUtility.encodeText("附件2:application.yml"), attachmentDataSource);
//富文本
mimeMessageHelper.setText("<html><body><p>你好:</p><div><img src='cid:contentId1'></div><a href='https://www.baidu.com'>https://www.baidu.com</a></body></html>",true);

ClassPathResource classPathResource2 = new ClassPathResource("pic/test.png");

String type = Files.probeContentType(Paths.get(classPathResource2.getURI()));

ByteArrayDataSource inlineDataSource = new ByteArrayDataSource(classPathResource2.getInputStream(), type);

mimeMessageHelper.addInline("contentId1", inlineDataSource);
javaMailSender.send(mimeMessage);

完整代码

https://github.com/fendoudebb/learning/tree/master/java/learn-spring-boot/mail-sender

Views: 3,794 · Posted: 2020-05-21

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