diff --git a/django_rest_sample/__init__.py b/django_rest_sample/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..9c0f75627493779a57ce48f0b76e35cc87b8984a 100644
--- a/django_rest_sample/__init__.py
+++ b/django_rest_sample/__init__.py
@@ -0,0 +1,3 @@
+import pymysql
+
+pymysql.install_as_MySQLdb()
diff --git a/django_rest_sample/settings.py b/django_rest_sample/settings.py
index a6dc00d37c5b630e939cc8df79bf81cf1f3b86d5..2220d45d46327281fd6e647766e9d90e7d3ae7c9 100644
--- a/django_rest_sample/settings.py
+++ b/django_rest_sample/settings.py
@@ -15,7 +15,6 @@ import os
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/
 
@@ -27,7 +26,6 @@ DEBUG = True
 
 ALLOWED_HOSTS = []
 
-
 # Application definition
 
 INSTALLED_APPS = [
@@ -37,8 +35,9 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    'library_app.apps.LibraryAppConfig',
-    'rest_framework'
+    # 'library_app.apps.LibraryAppConfig',
+    'rest_framework',
+    'library_app'
 ]
 
 MIDDLEWARE = [
@@ -72,18 +71,16 @@ TEMPLATES = [
 
 WSGI_APPLICATION = 'django_rest_sample.wsgi.application'
 
-
 # Database
 # https://docs.djangoproject.com/en/2.0/ref/settings/#databases
 
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
-    }
+        'NAME': os.path.join(BASE_DIR, 'db.sqlite3')
+    },
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validators
 
@@ -102,7 +99,6 @@ AUTH_PASSWORD_VALIDATORS = [
     },
 ]
 
-
 # Internationalization
 # https://docs.djangoproject.com/en/2.0/topics/i18n/
 
@@ -116,14 +112,29 @@ USE_L10N = True
 
 USE_TZ = True
 
-
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/2.0/howto/static-files/
 
 STATIC_URL = '/static/'
 
-
 REST_FRAMEWORK = {
     'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
     'PAGE_SIZE': 100
 }
+
+# 限流操作，减轻服务器压力
+REST_FRAMEWORK = {
+    'DEFAULT_THROTTLE_CLASSES': [
+        'rest_framework.throttling.AnonRateThrottle',
+        'rest_framework.throttling.UserRateThrottle'
+    ],
+    'DEFAULT_THROTTLE_RATES': {
+        'anon': '3/second',
+        'user': '10/second'
+    },
+    'DEFAULT_AUTHENTICATION_CLASSES': (
+        'rest_framework.authentication.SessionAuthentication',
+        'rest_framework.authentication.BasicAuthentication',
+    ),
+    'DEFAULT_SCHEMA_CLASS': 'rest_framework.schemas.coreapi.AutoSchema'
+}
diff --git a/django_rest_sample/urls.py b/django_rest_sample/urls.py
index 05fb841da371ccc55cbe81f3dacc6687bba81312..e22b06f8fcc382fd0b963fb47e3e96d5fb1ce3eb 100644
--- a/django_rest_sample/urls.py
+++ b/django_rest_sample/urls.py
@@ -14,10 +14,10 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import path, include
 from rest_framework import routers
 
-from library_app.views import BookViewSet, CategoryViewSet, AuthorViewSet
+from library_app.views import BookViewSet, CategoryViewSet, AuthorViewSet, LibraryStatsViewSet
 
 router = routers.DefaultRouter()
 router.register(r'books', BookViewSet)
@@ -27,4 +27,8 @@ urlpatterns = router.urls
 
 urlpatterns += [
     path('admin/', admin.site.urls),
+    path('library/stats/', LibraryStatsViewSet.as_view({'get': 'stats'}), name='library-stats'),
 ]
+"""
+访问接口：http://127.0.0.1:8000/library/stats/
+"""
\ No newline at end of file
diff --git a/dockerfile b/dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..3fdd405cc80047c8fb9ede25aea51f0c2f9cca7c
--- /dev/null
+++ b/dockerfile
@@ -0,0 +1,37 @@
+# 使用基础镜像
+FROM python:3.10
+
+COPY . /django-restframework-test
+
+# 设置工作目录
+WORKDIR /django-restframework-test
+
+
+
+
+COPY ./requirements.txt /app/requirements.txt
+
+# 安装项目依赖
+RUN pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple 
+
+
+
+
+#RUN apt-get update && apt-get install -y mysql-client
+RUN pip install mysqlclient
+
+
+
+
+
+# 运行数据库迁移
+RUN python /django-restframework-test/django-restframework-test/manage.py migrate
+
+# 设置环境变量
+#ENV DJANGO_SETTINGS_MODULE=myproject.settings.production
+
+# 暴露端口
+EXPOSE 9000
+
+# 运行 Django 项目
+CMD ["python", "/django-restframework-test/django-restframework-test/manage.py", "runserver", "0.0.0.0:9000"]
diff --git a/library_app/__init__.py b/library_app/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..c45523b2f83d4ee6d8742e97d5c9f9775f01cae0 100644
--- a/library_app/__init__.py
+++ b/library_app/__init__.py
@@ -0,0 +1,2 @@
+import pymysql
+pymysql.install_as_MySQLdb()
\ No newline at end of file
diff --git a/library_app/migrations/0002_alter_book_title.py b/library_app/migrations/0002_alter_book_title.py
new file mode 100644
index 0000000000000000000000000000000000000000..655e1a31bac93be274a76971564cc9bdc3268de2
--- /dev/null
+++ b/library_app/migrations/0002_alter_book_title.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2023-08-23 16:57
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='title',
+            field=models.CharField(blank=True, max_length=255, null=True, verbose_name='books'),
+        ),
+    ]
diff --git a/library_app/migrations/0003_alter_book_title.py b/library_app/migrations/0003_alter_book_title.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd170c75b84aaf452d696072269bde6722f03d24
--- /dev/null
+++ b/library_app/migrations/0003_alter_book_title.py
@@ -0,0 +1,17 @@
+# Generated by Django 3.2.12 on 2023-08-23 17:06
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0002_alter_book_title'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='title',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]
diff --git a/library_app/migrations/0004_alter_book_title.py b/library_app/migrations/0004_alter_book_title.py
new file mode 100644
index 0000000000000000000000000000000000000000..06d9bdf68fd7f0df14a00797fd62955619c430d9
--- /dev/null
+++ b/library_app/migrations/0004_alter_book_title.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2023-08-23 17:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0003_alter_book_title'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='title',
+            field=models.CharField(blank=True, max_length=255),
+        ),
+    ]
diff --git a/library_app/migrations/0005_alter_book_title.py b/library_app/migrations/0005_alter_book_title.py
new file mode 100644
index 0000000000000000000000000000000000000000..7ccde116f94f77ad5799f88d486d1aac4f8e71bb
--- /dev/null
+++ b/library_app/migrations/0005_alter_book_title.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2023-08-23 17:25
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0004_alter_book_title'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='title',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]
diff --git a/library_app/migrations/0006_alter_book_title.py b/library_app/migrations/0006_alter_book_title.py
new file mode 100644
index 0000000000000000000000000000000000000000..28c4c09837e2391e7e88a310746b210b3484103c
--- /dev/null
+++ b/library_app/migrations/0006_alter_book_title.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2023-08-23 17:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0005_alter_book_title'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='title',
+            field=models.CharField(blank=True, default='Untitled', max_length=255, null=True),
+        ),
+    ]
diff --git a/library_app/migrations/0007_alter_book_title.py b/library_app/migrations/0007_alter_book_title.py
new file mode 100644
index 0000000000000000000000000000000000000000..29601a74294f924ae0aa97b05464760c23f984a1
--- /dev/null
+++ b/library_app/migrations/0007_alter_book_title.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2023-08-22 04:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0006_alter_book_title'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='title',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]
diff --git a/library_app/migrations/0008_delete_book.py b/library_app/migrations/0008_delete_book.py
new file mode 100644
index 0000000000000000000000000000000000000000..748985d78a6be7104ac0ce40dd3dd4cf1e3c65d3
--- /dev/null
+++ b/library_app/migrations/0008_delete_book.py
@@ -0,0 +1,16 @@
+# Generated by Django 3.2.12 on 2023-08-22 05:43
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0007_alter_book_title'),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name='Book',
+        ),
+    ]
diff --git a/library_app/migrations/0009_book.py b/library_app/migrations/0009_book.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a7636390dd41a6aafc9ce9ca4cae52302e728f8
--- /dev/null
+++ b/library_app/migrations/0009_book.py
@@ -0,0 +1,26 @@
+# Generated by Django 3.2.12 on 2023-08-22 06:00
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library_app', '0008_delete_book'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Book',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(blank=True, max_length=255, null=True)),
+                ('owned', models.IntegerField()),
+                ('price', models.FloatField()),
+                ('publish_date', models.DateField()),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='library_app.author')),
+                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='library_app.category')),
+            ],
+        ),
+    ]
diff --git a/library_app/models.py b/library_app/models.py
index 4efae69f4620109b96b6cacc7c3809592f8bbc5c..18e8ccd0a25b63768be701da7823291ab9800952 100644
--- a/library_app/models.py
+++ b/library_app/models.py
@@ -1,16 +1,7 @@
 from django.db import models
 
 
-class Book(models.Model):
-    title = models.CharField(max_length=255, null=True, blank=True)
-    category = models.ForeignKey('Category', on_delete=models.CASCADE)
-    author = models.ForeignKey('Author', on_delete=models.CASCADE) 
-    owned = models.IntegerField()
-    price = models.FloatField()
-    publish_date = models.DateField()
 
-    def __str__(self):
-        return self.title
 
 class Author(models.Model):
     name = models.CharField(max_length=255, null=True, blank=True)
@@ -24,3 +15,15 @@ class Category(models.Model):
     def __str__(self):
         return self.title
 
+
+# 这里原本用的是2.2的版本，现在我用的是3.2版本，所以改了一下写法，不然就会在访问的时候会报错
+class Book(models.Model):
+    title = models.CharField(max_length=255,null=True, blank=True)
+    category = models.ForeignKey(Category, on_delete=models.CASCADE)
+    author = models.ForeignKey(Author, on_delete=models.CASCADE)
+    owned = models.IntegerField()
+    price = models.FloatField()
+    publish_date = models.DateField()
+
+    def __str__(self):
+        return self.title
diff --git a/library_app/serializers.py b/library_app/serializers.py
index 849aea1f7cfdf51d36afe7743319ac57b0688bc5..66b92088c8cd8f7defa66ae75e0c8f6f459c87bf 100644
--- a/library_app/serializers.py
+++ b/library_app/serializers.py
@@ -3,12 +3,17 @@ from rest_framework import serializers
 from library_app.models import Category, Book, Author
 
 
-
 class AuthorSerializer(serializers.ModelSerializer):
     class Meta:
         model = Author
         fields = "__all__"
 
+# 移动到了这里
+class CategorySerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Category
+        fields = "__all__"
+
 class BookReadSerializer(serializers.ModelSerializer):
     category = CategorySerializer()
     author = AuthorSerializer()
@@ -17,12 +22,18 @@ class BookReadSerializer(serializers.ModelSerializer):
         model = Book
         fields = '__all__'
 
+
 class BookWriteSerializer(serializers.ModelSerializer):
     class Meta:
-        model = Book
-        fields = "__all__"
+            model = Book
+            fields = '__all__'
 
-class CategorySerializer(serializers.ModelSerializer):
-    class Meta:
-        model = Category
-        fields = "__all__"
+
+
+
+
+# 一开始这里是报错的，因为在上面要用到，所以我移动了一下位置
+# class CategorySerializer(serializers.ModelSerializer):
+#     class Meta:
+#         model = Category
+#         fields = "__all__"
diff --git a/library_app/views.py b/library_app/views.py
index da56ab7fe376dc3d778ee7e3d280b4971270631d..d48e4ae081c6d84d7a73315369c35ecc279107a5 100644
--- a/library_app/views.py
+++ b/library_app/views.py
@@ -1,22 +1,74 @@
-from rest_framework import viewsets
+from django.db.models import Count, Sum
+from rest_framework import viewsets, status
+from rest_framework.decorators import action
+from rest_framework.response import Response
+from rest_framework.viewsets import ModelViewSet
 
 from library_app.models import Category, Author, Book
 from library_app.serializers import CategorySerializer, AuthorSerializer, BookReadSerializer, BookWriteSerializer
 
 
-class BookViewSet(viewsets.ModelViewSet):
+class BookViewSet(ModelViewSet):
     queryset = Book.objects.all()
+    # print(queryset)
+
+    """
+    一开始通过测试发现一开始是访问不了这个重写的视图函数：
+    """
 
     def get_serializer_class(self):
-        if self.request.method in ['GET', 'HEAD']:
+        # if self.request.method in ['GET', 'HEAD']:
+        #     return BookReadSerializer
+        # else:
+        #
+        #     return BookWriteSerializer
+        """
+        这里我优化了一下适应django3.2版本
+        添加数据现在要借助第三方测试工具比如postman
+        :return:
+        """
+        if self.action in ['list']:
             return BookReadSerializer
-        else:
-            return BookWriteSerializer
+        return BookWriteSerializer
+
+
+# 自己写的功能
+"""
+思路分析：
+    计算图书总数
+    计算图书的总成本。这样可以提供图书馆的基本统计
+    获取每位作者拥有的图书数量，并按照数量进行降序排序。这样可以找到拥有最多书籍的作者，提供给用户更加具体的统计信息
+    获取每个类别拥有的图书数量，并按照数量进行降序排序。这样可以找到拥有最多书籍的类别，也提供给用户更加具体的统计信息。
+  
+"""
+
+
+class LibraryStatsViewSet(viewsets.ViewSet):
+    @action(detail=False, methods=['get'])
+    def stats(self, request):
+        book_count = Book.objects.count()
+        total_cost = Book.objects.aggregate(total_cost=Sum('price')).get('total_cost', 0)
+        author_counts = Author.objects.annotate(book_count=Count('book')).order_by('-book_count')
+        category_counts = Category.objects.annotate(book_count=Count('book')).order_by('-book_count')
+
+        most_books_author = author_counts.first() if author_counts else None
+        most_books_category = category_counts.first() if category_counts else None
+
+        data = {
+            'book_count': book_count,
+            'total_cost': total_cost,
+            'most_books_author': AuthorSerializer(most_books_author).data if most_books_author else None,
+            'most_books_category': CategorySerializer(most_books_category).data if most_books_category else None
+        }
+        print(data)
+
+        return Response(data)
+
 
 class CategoryViewSet(viewsets.ModelViewSet):
     queryset = Category.objects.all()
     serializer_class = CategorySerializer
-    
+
 
 class AuthorViewSet(viewsets.ModelViewSet):
     queryset = Author.objects.all()
diff --git a/requirements.txt b/requirements.txt
index 6e5370e2b9bb93b069cbcb6632a22ee0bbfc2258..fd776b04496dba70a456a2dfaa4827c1f3cf3229 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,7 @@
-django
-djangorestframework
+asgiref==3.7.2
+Django==3.2
+djangorestframework==3.14.0
+PyMySQL==1.1.0
+pytz==2023.3
+sqlparse==0.4.4
+typing-extensions==4.7.0