springboot发送邮件（5）：使用thymeleaf模板发送邮件

springboot实现邮件功能：使用thymeleaf模板发送邮件

1.建springboot项目，导入依赖；application.properties配置文件，看

springboot发送邮件（1）：发送简单邮件

使用thymeleaf模板需要在application.properties添加：

# THYMELEAF (ThymeleafAutoConfiguration)
spring.thymeleaf.check-template-location=true
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.excluded-view-names= # comma-separated list of view names   that should be excluded from resolution
spring.thymeleaf.view-names= # comma-separated list of view names that can be resolved
spring.thymeleaf.suffix=.html
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.content-type=text/html # ;charset=<encoding> is added

如果不加，会报错。

2.编写服务接口，实现类：

/**
 * 邮件服务接口
 * Created by ASUS on 2018/5/5
 *
 * @Authod Grey Wolf
 */
public interface MailService {


    /**
     * 发送html格式的邮件
     * @param to
     * @param subject
     * @param content
     */
    void sendHtmlMail(String to,String subject,String content);


}

/**
 *
 * 邮件服务类
 * Created by ASUS on 2018/5/5
 *
 * @Authod Grey Wolf
 */

@Service("mailService")
public class MailServiceImpl implements MailService {

    @Autowired
    private JavaMailSender mailSender;

    @Value("${mail.fromMail.addr}")
    private String form;
    

    /**
     * 发送html格式的邮件
     * @param to 接受者
     * @param subject 主题
     * @param content 内容
     */
    @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(form);
            helper.setTo(form);
            helper.setSubject(subject);
            helper.setText(content,true);
            mailSender.send(message);
            System.out.println("html格式邮件发送成功");
        }catch (Exception e){
            System.out.println("html格式邮件发送失败");
        }
    }

  


}

3.编写测试类：

/**
 * 发送邮件测试类
 * Created by ASUS on 2018/5/5
 *
 * @Authod Grey Wolf
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class MailTest {

    @Autowired
    private MailService mailService;

    @Autowired
    private TemplateEngine templateEngine;

    @Value("${mail.fromMail.addr}")
    private String form;


    @Test
    public void sendTemplateMail() throws  Exception{
        //创建邮件正文
         //是导这个包import org.thymeleaf.context.Context;
        Context context = new Context();
        context.setVariable("username","Grey Wolf");
        //获取thymeleaf的html模板
        String emailContent= templateEngine.process("template", context);
        mailService.sendHtmlMail(form,"这是thymeleaf模板邮件",emailContent);
    }

}

4.测试效果：

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