han-note项目初始化完毕！

- 邮箱验证码接口完成

han-note-auth/src/main/java/com/hanserwei/hannote/auth/utils/MailHelper.java

@@ -0,0 +1,66 @@
+package com.hanserwei.hannote.auth.utils;
+
+import com.hanserwei.framework.common.exception.ApiException;
+import com.hanserwei.hannote.auth.enums.ResponseCodeEnum;
+import jakarta.annotation.Resource;
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeMessage;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.mail.javamail.MimeMessageHelper;
+import org.springframework.stereotype.Component;
+import org.thymeleaf.TemplateEngine;
+import org.thymeleaf.context.Context;
+
+import java.util.Arrays;
+import java.util.Date;
+
+@Slf4j
+@Component
+public class MailHelper {
+
+    @Resource
+    private JavaMailSender mailSender;
+
+    @Resource
+    private TemplateEngine templateEngine;
+
+    @Value("${spring.mail.username}")
+    private String username;
+
+
+    public boolean sendMail(String verificationCode, String email) {
+        Context context = new Context();
+        context.setVariable("verifyCode", Arrays.asList(verificationCode.split("")));
+
+        String process;
+        try {
+            // 确保这里的 templateEngine 能够正确处理 context
+            process = templateEngine.process("EmailVerificationCode.html", context);
+        } catch (Exception e) {
+            // 处理模板渲染失败的异常
+            throw new ApiException(ResponseCodeEnum.TEMPLATE_RENDER_ERROR);
+        }
+
+        MimeMessage mimeMessage = mailSender.createMimeMessage();
+
+        try {
+            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
+            helper.setSubject("【Han-note】验证码");
+            helper.setFrom(username);
+            helper.setTo(email);
+            helper.setSentDate(new Date());
+            helper.setText(process, true);
+
+            mailSender.send(mimeMessage); // 可能会抛出 MailException (RuntimeException)
+            log.info("邮件发送成功！");
+        } catch (MessagingException | org.springframework.mail.MailException e) {
+            // 捕获 MimeMessageHelper 配置异常 和 mailSender 发送异常
+            log.error("邮件发送失败：{}", e.getMessage());
+            throw new ApiException(ResponseCodeEnum.MAIL_SEND_ERROR);
+        }
+        return true;
+    }
+
+}