图书管理系统后端

1.图书管理系统后端接口
books/models.py 中设置表

class Book(models.Model):
btitle=models.CharField(max_length=32)
bpub_date=models.DateField()
bread=models.IntegerField()
bcomment=models.IntegerField()
is_delete=models.BooleanField(default=False)

class Meta:
    db_table='Book'

urls.py 中设置路由

from books import views
urlpatterns = [
path('book/', views.BooksView.as_view()),
]
book/views.py 视图函数

class BooksView(View):
#查
def get(self,request):
books=Book.objects.filter(is_delete=False)
book_list=books.values('id','btitle','bpub_date','bread','bcomment')
book_list=list(book_list)
data={
'code':0,
'msg':'ok',
'books':book_list
}
return JsonResponse(data)
#增
def post(self,request):
body_json=request.body.decode()
body_dict=json.loads(body_json)
btitle=body_dict.get('btitle')
bpub_date=body_dict.get('bpub_date')
bread=body_dict.get('bread')
bcomment=body_dict.get('bcomment')
book=Book(btitle=btitle,bpub_date=bpub_date,bread=bread,bcomment=bcomment)
book.save()
return JsonResponse({'code':200,'msg':'ok'})
#改
def put(self,request):
body_json = request.body.decode()
body_dict = json.loads(body_json)
id = body_dict.get('id')
btitle=body_dict.get('btitle')
bpub_date=body_dict.get('bpub_date')
bread=body_dict.get('bread')
bcomment=body_dict.get('bcomment')
book=Book.objects.get(id=id)
book.btitle=btitle
book.bpub_date=bpub_date
book.bread=bread
book.bcomment=bcomment
book.save()
return JsonResponse({'code':200,'msg':'ok'})
#删
def delete(self,request):
body_json=request.body.decode()
body_dict=json.loads(body_json)
id=body_dict.get('id')
book=Book.objects.get(id=id)
book.is_delete=True
book.save()
return JsonResponse({'code':200,'msg':'ok'})

测试接口 查
http://127.0.0.1:8000/book/

{
"code": 0,
"msg": "ok",
"books": [
{
"id": 2,
"btitle": "红楼梦",
"bpub_date": "2018-02-04",
"bread": 100,
"bcomment": 0
},
{
"id": 3,
"btitle": "遮天",
"bpub_date": "2018-02-04",
"bread": 100,
"bcomment": 0
}
]
}
测试创建图书接口
http://127.0.0.1:8000/book/

{ "btitle":"遮天", "bpub_date":"2018-02-04", "bread":100, "bcomment":0 }

测试修改图书接口
http://127.0.0.1:8000/book/

{ "id":1, "btitle":"红楼梦11", "bpub_date":"2018-02-04", "bread":100, "bcomment":0 }

测试删除数据接口
http://127.0.0.1:8000/book/

{ "id":5 }