diff --git a/ruoyi-admin/src/main/java/com/ruoyi/busi/service/impl/BusiNoticeServiceImpl.java b/ruoyi-admin/src/main/java/com/ruoyi/busi/service/impl/BusiNoticeServiceImpl.java
index ab2f77a..f0ea812 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/busi/service/impl/BusiNoticeServiceImpl.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/busi/service/impl/BusiNoticeServiceImpl.java
@@ -258,7 +258,7 @@ public class BusiNoticeServiceImpl extends ServiceImpl<BusiNoticeMapper,BusiNoti
         JSONObject userDetailJson = new JSONObject();
         userDetailJson.put("userId",userDetail.getUserId());
         userDetailJson.put("nickName",userDetail.getNickName());
-        userDetailJson.put("avatar",userDetail.getAvatar());
+        userDetailJson.put("avatar",Optional.ofNullable(userDetail.getAvatar()).orElse(""));
         //关联认证表
         LambdaQueryWrapper<MemberApply> queryWrapperMember =new LambdaQueryWrapper<>();
         queryWrapperMember.eq(MemberApply::getUserId,userDetail.getUserId()).eq(MemberApply::getApprovalStatus,1).last("limit 1");
@@ -269,7 +269,8 @@ public class BusiNoticeServiceImpl extends ServiceImpl<BusiNoticeMapper,BusiNoti
         res.put("userDetail",userDetailJson);
         //已报名用户头像
         List<BusiNoticeSign> signList = busiNoticeSignMapper.selectList(new LambdaQueryWrapper<BusiNoticeSign>().eq(BusiNoticeSign::getNoticeId, noticeId));
-        List<String> signUserAvatarList = signList.stream().map(BusiNoticeSign::getAvatar).collect(Collectors.toList());
+        List<String> signUserAvatarList = signList.stream().map(it-> Optional.ofNullable(it.getAvatar()).orElse("")
+        ).collect(Collectors.toList());
         res.put("signUserAvatarList",signUserAvatarList);
         //当前用户是否已关注该通告主
         Long userId=null;