add

server/app/Http/Controllers/Api/V1/AuthController.php

@@ -208,7 +208,7 @@ class AuthController extends Controller
             UserInfoModel::create([
                 'wechat'=>$openid,
                 'nickname'=>$userInfo['nickname'],
-                'nickname'=>$userInfo['avatar'],
+                'nickname'=>$userInfo['headimgurl'],
                 'status'=>1,
                 'password'=>bcrypt(123456)
             ]);