SpringBoot如何使用FreeMarker模塊引擎發(fā)送郵件？

不懂SpringBoot如何使用FreeMarker模塊引擎發(fā)送郵件？？其實想解決這個問題也不難，下面讓小編帶著大家一起學(xué)習(xí)怎么去解決，希望大家閱讀完這篇文章后大所收獲。

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通過spirngboot 自帶的mail服務(wù)及FreeMarker模板引擎，發(fā)送郵

添加依賴

<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--消除冗余代碼使用-->
<dependency>
 <groupId>org.projectlombok</groupId>
 <artifactId>lombok</artifactId>
 <optional>true</optional>
</dependency>

在application.yml文件中配置Mail信息

spring:
 mail:
 port: 25
 username: ${username}
 password: ${password}
 protocol: smtp
 default-encoding: utf-8
 host: ${host}

編寫MailService服務(wù)

@Service
public class MailServiceImpl implements MailService {

 //郵件的發(fā)送者
 @Value("${spring.mail.username}")
 private String from;

 //注入MailSender
 @Autowired
 private JavaMailSender mailSender;

 //發(fā)送郵件的模板引擎
 @Autowired
 private FreeMarkerConfigurer configurer;

 /**
 * @param params 發(fā)送郵件的主題對象 object
 * @param title 郵件標(biāo)題
 * @param templateName 模板名稱
 */
 @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("xxxxx@163.com"));//發(fā)送給誰
 helper.setSubject("【" + title + "-" + LocalDate.now() + " " + LocalTime.now().withNano(0) + "】");//郵件標(biāo)題

 Map<String, Object> model = new HashMap<>();
 model.put("params", params);
 try {
 Template template = configurer.getConfiguration().getTemplate(templateName);
 try {
 String text = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);

 helper.setText(text, true);
 mailSender.send(mimeMessage);
 } catch (TemplateException e) {
 e.printStackTrace();
 }
 } catch (IOException e) {
 e.printStackTrace();
 }
 } catch (MessagingException e) {
 e.printStackTrace();
 }
 }
}

定義發(fā)送郵件對象

發(fā)送內(nèi)容為object，我這里演示一個對象，通過模板渲染方式接收內(nèi)容

@Data
public class Message {

 private String messageCode;
 private String messageStatus;
 private String cause;

}

在項目templates目錄新建個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>
 <h3>郵件消息通知</h3>
 <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>

測試郵件發(fā)送