SpringBoot整合JavaMail实现发邮件的项目实践

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

spring:  
  mail:    
    host: smtp.qq.com  # 发邮件，smtp协议，后面.运营商    
    username: *********@qq.com    
    password: *********  # 不是邮箱的密码，是下面获取的一个授权码

@Autowired    
private JavaMailSender javaMailSender;   

//定义接口
public interface SendMailService{
	void sendMail();
}

//实现类
@Service
public class SendMailServiceImpl implements SendMailService { 
	@Autowired    
	private JavaMailSender javaMailSender;   
	//这些值也可以不硬编码，写在配置文件中@Value取值
	private String from = "********@qq.com";	 // 发送人    
	private String to = "********@126.com";	 // 接收人   
	private String subject = "测试邮件";		 // 邮件主题   
	private String text = "测试邮件正文";	 	// 邮件内容
	@Override    
	public void sendMail() {       
		SimpleMailMessage mailMessage = new SimpleMailMessage();  
		//mailMessage.setFrom(from); 
		//from后面加个名字，比如xxx公司，不然发送发一串邮箱数字，谁知道你是谁      
		mailMessage.setFrom(from + "别名");   
		//这里的to是个可变长String，即可发送多人
		mailMessage.setTo(to);        
		mailMessage.setSubject(subject);        
		mailMessage.setText(text);
		//mailMessage.setSendDate();        //设置发送的时间
		//其他设置自行set
		javaMailSender.send(mailMessage);     //发送
	}
}

//超链接
private String text = "<a href='https://www.baidu.com/'>百度</a>";
//图片
private String img = "<img src='https://pic35.photophoto.cn/20150511/0034034892281415_b.jpg' />";
@Override
public void sendMail() {    
	try {        
		MimeMessage mimeMessage = javaMailSender.createMimeMessage(); 
		//第二个参数，即是否允许添加多部件
		//我后面要添加各种附件，所以这里必须是true       
		MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage,true);       
		mimeMessageHelper.setFrom(from);       
		mimeMessageHelper.setTo(to);        
		mimeMessageHelper.setSubject(subject);
		//不加true，默认当普通文本，true即按html来解析        
		mimeMessageHelper.setText(text,true);  
		//添加附件
		File file1 = new File("logo.png"); 
		File file2 = new File("D:\\myboot.jar"); 
		//如果是手写文件名，记得添加个后缀，比如.png，方便在邮件里可预览 
		mimeMessageHelper.addAttachment(file1.getName(),file1);  
		mimeMessageHelper.addAttachment("一个jar包.jar",file2);    
		javaMailSender.send(mimeMessage);    
	} catch (Exception e) {       
		e.printStackTrace();   
	}
}