flask分页
flask+mongoengine实现分页,
- 前端给第几页和每页条数,后端显示相应数据
- 其中@catch_exception是try except容错装饰器,trueReturn方法为响应方法
分页
class Paging(Resource):
"""分页"""
@catch_exception
def post(self):
import math
data = request.json
# 每页多少条
num = int(data["num"])
# 第几页
page = int(data["page"])
# 总数据条数
total = User.objects.all().count()
# 共多少页
pages = math.ceil(total / num)
# 起始条数
start = num*(page-1)
end = num*page
# 最终数据
all = User.objects[start:end]
list = []
if all:
for i in all:
obj = {
"id": str(i.id),
"user_ip": i.user_ip,
"timeout_name": i.user_name,
"country": i.country,
"timeout": i.stay_time,
"router": i.router,
"create_time": i.create_time
}
list.append(obj)
# 返回结果
result = {
"data": list,
"total": total,
"pages": pages
}
return trueReturn(result)
思路:
最终实现就不贴出来了