SpringBoot +Mail+FreeMarker

添加依赖

  <!-- 邮件所需依赖 -->
 <dependency>
 	  <groupId>org.springframework.boot</groupId>
 	  <artifactId>spring-boot-starter-mail</artifactId>
 </dependency> 
 
  <!-- Spring Boot Freemarker 依赖，发送HTML格式的邮件的方式 -->
  <dependency>
  	 <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-freemarker</artifactId>        
 </dependency>

配置properties文件

 ##邮件系统
 #启用邮件运行状况检查。
 management.health.mail.enabled = false
 spring.mail.host = mail.yto.net.cn
 spring.mail.jndi-name = 	
 spring.mail.port = 25

 spring.mail.username = 用户名（发邮件账户）
 spring.mail.password = 密码 （发邮件账户密码）
 spring.mail.properties.mail.smtp.auth = true
 spring.mail.properties.mail.smtp.starttls.enable = false
 spring.mail.properties.mail.smtp.starttls.required = false

 #模板加载路径
 spring.freemarker.template-loader-path = classpath:static/template/

 #模板文件后缀
 spring.freemarker.suffix = .ftl
 spring.freemarker.enabled = true
 spring.freemarker.cache = false
 spring.freemarker.charset = UTF-8
 spring.freemarker.content-type = text/html
 spring.freemarker.allow-request-override = false

 #是否需要检查模板路径是否存在
 spring.freemarker.check-template-location = true
 spring.freemarker.expose-request-attributes = false
 spring.freemarker.expose-session-attributes = false
 spring.freemarker.expose-spring-macro-helpers = false

编写MailService服务

  @Service
  public class MailServiceImpl implements MailService {

   //邮件的发送者
  @Value("${spring.mail.username}")
  private String from;

   //注入MailSender
   @Autowired
   private JavaMailSender mailSender;

   //发送邮件的模板引擎
  @Autowired
  private FreeMarkerConfigurer configurer;

    /**
    * @param params       发送邮件的主题对象 object
    * @param title        邮件标题
    * @param templateName 模板名称
    */
 @Override
public void sendMessageMail(Object params, String title, String templateName) {

  try {
      MimeMessage mimeMessage = mailSender.createMimeMessage();
      MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
      helper.setFrom(from);
      helper.setTo(InternetAddress.parse("[email protected]"));//发送给谁
      helper.setSubject("【" + title + "-" + LocalDate.now() + " " + LocalTime.now().withNano(0) + "】");//邮件标题

      Map<String, Object> model = new HashMap<>();
      model.put("params", params);
      try {
          Template template = configurer.getConfiguration().getTemplate(templateName);
          try {
          //赋值后的模板邮件内容
           String text = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);

           helper.setText(text, true);//邮件内容
              mailSender.send(mimeMessage);
          }
	 	 } catch (Exception e) {
      e.printStackTrace();
		  }
   }
   }

定义发送邮件对象

发送内容为object，我这里演示一个对象，通过模板渲染方式接收内容

	@Data
	public class Message {
		 private String messageCode;
		 private String messageStatus;
		 private String cause;
		}

在项目templates目录新建个message.ftl文件

  <!DOCTYPE html>
  <html>
  	<head>
  	  <meta charset="UTF-8">
  	  <title>消息通知</title>
  	</head>

  <style type="text/css">
  	  table {
  	        font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
			    width: 100%;
  			border-collapse: collapse;
  			 }

  	  td, th {
  			font-size: 1em;
 				border: 1px solid #5B4A42;
  			padding: 3px 7px 2px 7px;
  			 }

  		   th {
  		   font-size: 1.1em;
 			   text-align: center;
 			   padding-top: 5px;
  		   padding-bottom: 4px;
  		   background-color: #24A9E1;
  		   color: #ffffff;
  	  }
  </style>
  <body>
  	<div>
  		<h2>邮件消息通知</h2>
  		<table id="customers">
  				<tr>
     				 	<th>MessageCode</th>
     				 	<th>MessageStatus</th>
      			 	<th>Cause</th>
 			  	    </tr>
 			       <tr>
      				<td>${(params.messageCode)!""}</td>
      				<td>${(params.messageStatus)!""}</td>
      				<td>${(params.cause)!""}</td>
  				</tr>
  		</table>
  	</div>
  </body>
  </html>

测试邮件发送

  @RestController
  public class MailController {

  @Autowired
  private MailService mailService;

  @RequestMapping(value = "/sendMessage", method = 							RequestMethod.GET)
  public void sendMailMessage() {
  	Message message = new Message();

  	message.setMessageCode("MissingParameter");
  	message.setMessageStatus("Failed");
  	message.setCause("缺少参数,请确认");

  	mailService.sendMessageMail(message, "测试消息通知", "message.ftl");
   }
  }

SpringBoot使用FreeMarker模板发送邮件

SpringBoot +Mail+FreeMarker

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