Spring Boot中引入mail邮件服务

发送邮件，包括简单邮件，html邮件，带附件邮件，内嵌图片邮件四种类型。

1、配置

pom.xml

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

application.properties

spring.mail.host=mail.xxx.com
spring.mail.username=test@xxx.com
spring.mail.password=123456
spring.mail.default-encoding=UTF-8
mail.fromMail.addr=text@xxx.com

2、服务类

MailService.java接口

public interface MailService {
	public void sendSimpleMail(String to, String subject, String content);
	public void sendHtmlMail(String to, String subject, String content);
	public void sendAttachmentsMail(String to, String subject, String content,
			String filePath);
	public void sendInlineResourceMail(String to, String subject,
			String content, String rscPath, String rscId);
}

MailServiceImpl.java实现类

@Component
public class MailServiceImpl implements MailService{
    @Autowired
    private JavaMailSender mailSender;
    @Value("${mail.fromMail.addr}")
    private String from;

    @Override
    public void sendSimpleMail(String to, String subject, String content) {
    	SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(from);
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        try {
        	//简单邮件发送
            mailSender.send(message);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

	@Override
	public void sendHtmlMail(String to, String subject, String content) {
		MimeMessage message = mailSender.createMimeMessage();
        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            //Html邮件发送
            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }		
	}

	@Override
	public void sendAttachmentsMail(String to, String subject, String content, String filePath) {
		MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator)+1);
            helper.addAttachment(fileName, file);
            //发送带附件的邮件
            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }		
	}

	@Override
	public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId) {
		MimeMessage message = mailSender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);
            //发送正文中有静态资源（图片）的邮件
            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }		
	}
}

3、测试类

要测试哪种类型就放开注释掉的Test注解，//@Test
MailServiceTest.java

@RunWith(SpringRunner.class)
@SpringBootTest
public class MailServiceTest {
	@Autowired
    private MailService mailService;
	//从配置文件获取变量
	@Value("${mail.fromMail.addr}")
    private String from;
    
	//@Test
    public void testSimpleMail() throws Exception {
        mailService.sendSimpleMail(from,"test simple mail"," hello text simple mail");
    }

    //@Test
    public void testHtmlMail() throws Exception {
        String content="<html>\n" +
                "<body>\n" +
                "    <h3>hello world ! html邮件!</h3>\n" +
                "</body>\n" +
                "</html>";

        mailService.sendHtmlMail(from,"test html mail",content);
    }

    //@Test
    public void sendAttachmentsMail() {
        String filePath="/home/cent/Desktop/test.txt";
        mailService.sendAttachmentsMail(from, "带附件的邮件", "有附件，请查收！", filePath);
    }

    //@Test
    public void sendInlineResourceMail() {
        String rscId = "c4fa0242";
        String content="<html><body>这是有图片的邮件：<img src=\'cid:" + rscId + "\' ></body></html>";
        String imgPath = "/home/cent/Desktop/c4fa0242.jpg";
        mailService.sendInlineResourceMail(from, "有图片的邮件", content, imgPath, rscId);
    }
}

嵌入图片的邮件正文：

Spring Boot中引入mail邮件服务

1、配置

2、服务类

3、测试类

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