diff --git a/src/main/java/edu/situ/stlserver/service/impl/CoachServiceImpl.java b/src/main/java/edu/situ/stlserver/service/impl/CoachServiceImpl.java
index 7bf3230..34dfb02 100644
--- a/src/main/java/edu/situ/stlserver/service/impl/CoachServiceImpl.java
+++ b/src/main/java/edu/situ/stlserver/service/impl/CoachServiceImpl.java
@@ -68,7 +68,6 @@ public class CoachServiceImpl implements CoachService {
         coach.setSex(coachAddDTO.getSex());
         coach.setRemark(coachAddDTO.getRemark());
         String avatar;
-        System.out.println(coachAddDTO.getFile());
         if (coachAddDTO.getFile() != null && !coachAddDTO.getFile().isEmpty())
         {
             try {
@@ -87,6 +86,9 @@ public class CoachServiceImpl implements CoachService {
 
     private String saveAvatar(MultipartFile file) throws Exception {
         String originFilename = file.getOriginalFilename();
+        if (originFilename == null) {
+            originFilename = "avatar.png";
+        }
         String suffix = originFilename.substring(originFilename.lastIndexOf("."));
         String filename = UUID.randomUUID().toString() + suffix;
         File dir = new File(baseUploadPath + coachUploadPath);
@@ -127,7 +129,6 @@ public class CoachServiceImpl implements CoachService {
                 new File(baseUploadPath + recordAvatar).delete();
                 coach.setAvatar(null);
             } else {                                                          // 情况三：用户没有动头像
-                coach.setAvatar(coachUpdateDTO.getAvatar());
                 coach.setAvatar(recordAvatar);
             }
         }
diff --git a/src/main/java/edu/situ/stlserver/service/impl/MemberServiceImpl.java b/src/main/java/edu/situ/stlserver/service/impl/MemberServiceImpl.java
index c614a2c..644a6dc 100644
--- a/src/main/java/edu/situ/stlserver/service/impl/MemberServiceImpl.java
+++ b/src/main/java/edu/situ/stlserver/service/impl/MemberServiceImpl.java
@@ -86,6 +86,9 @@ public class MemberServiceImpl implements MemberService {
 
     private String saveAvatar(MultipartFile file) throws Exception {
         String originFilename = file.getOriginalFilename();
+        if (originFilename == null) {
+            originFilename = "avatar.png";
+        }
         String suffix = originFilename.substring(originFilename.lastIndexOf("."));
         String filename = UUID.randomUUID().toString() + suffix;
         File dir = new File(baseUploadPath + memberUploadPath);