diff --git a/model/config.go b/model/config.go
index 5f1cf1b..5a4ee79 100644
--- a/model/config.go
+++ b/model/config.go
@@ -528,6 +528,10 @@ func (m *DBModel) GetConfigOfSecurity(name ...string) (config ConfigSecurity) {
 	bytes, _ := json.Marshal(data)
 	json.Unmarshal(bytes, &config)
 
+	if config.MaxDocumentSize <= 0 {
+		config.MaxDocumentSize = 50 // 默认50M
+	}
+
 	return
 }
 
diff --git a/web/layouts/admin.vue b/web/layouts/admin.vue
index 4c5b394..13547e4 100644
--- a/web/layouts/admin.vue
+++ b/web/layouts/admin.vue
@@ -84,7 +84,7 @@
           </el-button>
           <el-dropdown-menu slot="dropdown">
             <el-dropdown-item command="profile"> 个人资料 </el-dropdown-item>
-            <el-dropdown-item command="copyjwt"> 复制 JWT </el-dropdown-item>
+            <!-- <el-dropdown-item command="copyjwt"> 复制 JWT </el-dropdown-item> -->
             <el-dropdown-item command="password"> 修改密码 </el-dropdown-item>
             <el-dropdown-item command="logout">退出登录</el-dropdown-item>
           </el-dropdown-menu>