diff --git a/spring-boot-mail/src/main/java/com/neo/service/MailService.java b/spring-boot-mail/src/main/java/com/neo/service/MailService.java
index a2948541cdb93390b358858dd3db80655471f490..41df356059e4a4679c2b5422e9becd82ccd3ca69 100644
--- a/spring-boot-mail/src/main/java/com/neo/service/MailService.java
+++ b/spring-boot-mail/src/main/java/com/neo/service/MailService.java
@@ -5,12 +5,12 @@ package com.neo.service;
  */
 public interface MailService {
 
-    public void sendSimpleMail(String to, String subject, String content);
+    void sendSimpleMail(String to, String subject, String content);
 
-    public void sendHtmlMail(String to, String subject, String content);
+    void sendHtmlMail(String to, String subject, String content);
 
-    public void sendAttachmentsMail(String to, String subject, String content, String filePath);
+    void sendAttachmentsMail(String to, String subject, String content, String filePath);
 
-    public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId);
+    void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId);
 
 }
diff --git a/spring-boot-mail/src/main/java/com/neo/service/impl/MailServiceImpl.java b/spring-boot-mail/src/main/java/com/neo/service/impl/MailServiceImpl.java
index 9053e6fb7a91da9b533a2af38d4b65cf5db19bad..ee161e54a035787c7963faa480b621ca85d9a43c 100644
--- a/spring-boot-mail/src/main/java/com/neo/service/impl/MailServiceImpl.java
+++ b/spring-boot-mail/src/main/java/com/neo/service/impl/MailServiceImpl.java
@@ -85,6 +85,7 @@ public class MailServiceImpl implements MailService{
      * @param content
      * @param filePath
      */
+    @Override
     public void sendAttachmentsMail(String to, String subject, String content, String filePath){
         MimeMessage message = mailSender.createMimeMessage();
 
@@ -116,6 +117,7 @@ public class MailServiceImpl implements MailService{
      * @param rscPath
      * @param rscId
      */
+    @Override
     public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId){
         MimeMessage message = mailSender.createMimeMessage();