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src/main/java/xyz/fortern/service/EmailService.java

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+package xyz.fortern.service;
+
+import org.springframework.mail.SimpleMailMessage;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Service;
+
+import java.util.Date;
+
+@Service
+public class EmailService {
+	private final JavaMailSender javaMailSender;
+	
+	public EmailService(JavaMailSender javaMailSender) {
+		this.javaMailSender = javaMailSender;
+	}
+	
+	/**
+	 * 异步发送邮件
+	 *
+	 * @param address 目的地址
+	 * @param title   标题
+	 * @param text    内容
+	 */
+	@Async
+	public void sendSimpleMail(String address, String title, String text) {
+		// 构建一个邮件对象
+		SimpleMailMessage message = new SimpleMailMessage();
+		// 设置邮件主题
+		message.setSubject(title);
+		// 设置邮件发送者，这个跟application.yml中设置的要一致
+		message.setFrom("落星原服务器<fortern@foxmail.com>");
+		// 设置邮件接收者，可以有多个接收者，中间用逗号隔开，以下类似
+		message.setTo(address);
+		// 设置邮件发送日期
+		message.setSentDate(new Date());
+		// 设置邮件的正文
+		message.setText(text);
+		// 发送邮件
+		javaMailSender.send(message);
+	}
+}