diff --git a/my-project-backend/src/main/java/com/example/entity/dto/AccountDetails.java b/my-project-backend/src/main/java/com/example/entity/dto/AccountDetails.java
index b68253a..01ccf0b 100644
--- a/my-project-backend/src/main/java/com/example/entity/dto/AccountDetails.java
+++ b/my-project-backend/src/main/java/com/example/entity/dto/AccountDetails.java
@@ -16,7 +16,7 @@ import lombok.NoArgsConstructor;
 public class AccountDetails implements BaseData {
     @TableId(type = IdType.AUTO)
     Integer id;
-    int gender;
+    int gender = 0;
     String phone;
     String qq;
     String wx;
diff --git a/my-project-backend/src/main/java/com/example/service/impl/AccountServiceImpl.java b/my-project-backend/src/main/java/com/example/service/impl/AccountServiceImpl.java
index 288177f..6d6bcd6 100644
--- a/my-project-backend/src/main/java/com/example/service/impl/AccountServiceImpl.java
+++ b/my-project-backend/src/main/java/com/example/service/impl/AccountServiceImpl.java
@@ -3,8 +3,12 @@ package com.example.service.impl;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.example.entity.dto.Account;
+import com.example.entity.dto.AccountDetails;
+import com.example.entity.dto.AccountPrivacy;
 import com.example.entity.vo.request.*;
+import com.example.mapper.AccountDetailsMapper;
 import com.example.mapper.AccountMapper;
+import com.example.mapper.AccountPrivacyMapper;
 import com.example.service.AccountService;
 import com.example.utils.Const;
 import com.example.utils.FlowUtils;
@@ -45,6 +49,12 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
     @Resource
     FlowUtils flow;
 
+    @Resource
+    AccountDetailsMapper detailsMapper;
+
+    @Resource
+    AccountPrivacyMapper privacyMapper;
+
     /**
      * 从数据库中通过用户名或邮箱查找用户详细信息
      * @param username 用户名
@@ -104,6 +114,10 @@ public class AccountServiceImpl extends ServiceImpl<AccountMapper, Account> impl
             return "内部错误，注册失败";
         } else {
             this.deleteEmailVerifyCode(email);
+            privacyMapper.insert(new AccountPrivacy(account.getId()));
+            AccountDetails details = new AccountDetails();
+            details.setId(account.getId());
+            detailsMapper.insert(details);
             return null;
         }
     }
diff --git a/my-project-frontend/src/store/index.js b/my-project-frontend/src/store/index.js
index 9af6664..4d2765a 100644
--- a/my-project-frontend/src/store/index.js
+++ b/my-project-frontend/src/store/index.js
@@ -30,6 +30,12 @@ export const useStore = defineStore('general', {
                     return type;
             }
             return null
+        },
+        userAvatarUrl(avatar) {
+            if(avatar)
+                return `${axios.defaults.baseURL}/images${avatar}`
+            else
+                return 'https://cube.elemecdn.com/0/88/03b0d39583f48206768a7534e55bcpng.png'
         }
     }
 })
diff --git a/my-project-frontend/src/views/forum/TopicDetail.vue b/my-project-frontend/src/views/forum/TopicDetail.vue
index c809576..6746ce8 100644
--- a/my-project-frontend/src/views/forum/TopicDetail.vue
+++ b/my-project-frontend/src/views/forum/TopicDetail.vue
@@ -100,7 +100,7 @@ function deleteComment(id) {
         </div>
         <div class="topic-main">
             <div class="topic-main-left">
-                <el-avatar :src="axios.defaults.baseURL + '/images' + topic.data.user.avatar"
+                <el-avatar :src="store.userAvatarUrl(topic.data.user.avatar)"
                            :size="60"></el-avatar>
                 <div style="margin-left: 10px">
                     <div style="font-weight: bold;font-size: 18px">
@@ -150,7 +150,7 @@ function deleteComment(id) {
             <div v-if="topic.comments">
                 <div class="topic-main" style="margin-top: 10px" v-for="item in topic.comments">
                     <div class="topic-main-left">
-                        <el-avatar :src="axios.defaults.baseURL + '/images' + item.user.avatar"
+                        <el-avatar :src="store.userAvatarUrl(item.user.avatar)"
                                    :size="60"></el-avatar>
                         <div style="margin-left: 10px">
                             <div style="font-weight: bold;font-size: 18px">
diff --git a/my-project-frontend/src/views/forum/TopicList.vue b/my-project-frontend/src/views/forum/TopicList.vue
index d6b282c..342c2b5 100644
--- a/my-project-frontend/src/views/forum/TopicList.vue
+++ b/my-project-frontend/src/views/forum/TopicList.vue
@@ -136,7 +136,7 @@ navigator.geolocation.getCurrentPosition(position => {
                                     @click="router.push('/index/post-detail/' + item.id)">
                             <div style="display: flex">
                                 <div>
-                                    <el-avatar :size="30" :src="`${axios.defaults.baseURL}/images${item.avatar}`"/>
+                                    <el-avatar :size="30" :src="store.userAvatarUrl(item.avatar)"/>
                                 </div>
                                 <div style="margin-left: 7px;transform: translateY(-2px)">
                                     <div style="font-size: 13px;font-weight: bold">{{item.username}}</div>