diff --git a/backend/.gitignore b/backend/.gitignore
index 7119be0..a09ea3d 100644
--- a/backend/.gitignore
+++ b/backend/.gitignore
@@ -91,7 +91,7 @@ ENV/
 **/migrations/*.py
 !**/migrations/__init__.py
 *.pyc
-conf/
+conf/*
 !conf/env.example.py
 db.sqlite3
 media/
diff --git a/backend/application/settings.py b/backend/application/settings.py
index 17453c8..d5193a3 100644
--- a/backend/application/settings.py
+++ b/backend/application/settings.py
@@ -55,10 +55,10 @@ INSTALLED_APPS = [
     "rest_framework",
     "django_filters",
     "corsheaders",  # 注册跨域app
-    "dvadmin.system",
     "drf_yasg",
     "captcha",
     'channels',
+    *locals().get("CUSTOM_APPS", []),  # 所有项目里写的app需要在env.py文件里的CUSTOM_APPS中
 ]
 
 MIDDLEWARE = [
@@ -306,7 +306,7 @@ AUTHENTICATION_BACKENDS = ["dvadmin.utils.backends.CustomBackend"]
 # ================================================= #
 SIMPLE_JWT = {
     # token有效时长
-    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=120),
+    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=1440),
     # token刷新后的有效时间
     "REFRESH_TOKEN_LIFETIME": timedelta(days=1),
     # 设置前缀
diff --git a/backend/conf/env.example.py b/backend/conf/env.example.py
index 829b73a..117e200 100644
--- a/backend/conf/env.example.py
+++ b/backend/conf/env.example.py
@@ -44,6 +44,8 @@ LOGIN_NO_CAPTCHA_AUTH = True
 # ================================================= #
 
 ALLOWED_HOSTS = ["*"]
-
+CUSTOM_APPS = [
+    "dvadmin.system",
+]
 # daphne启动命令
 #daphne application.asgi:application -b 0.0.0.0 -p 8000
diff --git a/backend/dvadmin/utils/models.py b/backend/dvadmin/utils/models.py
index 2c45fa7..7fce757 100644
--- a/backend/dvadmin/utils/models.py
+++ b/backend/dvadmin/utils/models.py
@@ -6,15 +6,17 @@
 @Created on: 2021/5/31 031 22:08
 @Remark: 公共基础model类
 """
+from importlib import import_module
+
 from django.apps import apps
 from django.db import models
-from django.db.models import QuerySet
+from django.conf import settings
 
 from application import settings
 table_prefix = settings.TABLE_PREFIX  # 数据库表名前缀
 
 
-class SoftDeleteQuerySet(QuerySet):
+class SoftDeleteQuerySet(models.QuerySet):
     pass
 
 
@@ -106,3 +108,26 @@ def get_all_models_objects(model_name=None):
     if model_name:
         return settings.ALL_MODELS_OBJECTS[model_name] or {}
     return settings.ALL_MODELS_OBJECTS or {}
+
+
+def get_all_custom_app_models():
+    """获取所有项目写的app里的models"""
+    for app in settings.CUSTOM_APPS:
+        model_module = import_module(app + '.models')
+        filter_model = [
+            getattr(model_module, item) for item in dir(model_module)
+            if item != 'CoreModel' and issubclass(getattr(model_module, item).__class__, models.base.ModelBase)
+        ]
+        model_list = []
+        for model in filter_model:
+            fields = [
+                {'title': field.verbose_name, 'name': field.name, 'object': field}
+                for field in model._meta.fields
+            ]
+            model_list.append({
+                'verbose': model._meta.verbose_name,
+                'model': model.__name__,
+                'object': model,
+                'fields': fields
+            })
+        yield model_list