运维开发笔记整理-使用序列化

　　　　　　　　　　　　　　　　运维开发笔记整理-使用序列化

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　作者：尹正杰

版权声明：原创作品，谢绝转载！否则将追究法律责任。

一.案例一

1>.目录结构如下图所示

2>.各个文件代码如下所示

"""yinzhengjie_devops URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.conf.urls import url,include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r"^",include("idcs.urls"))
]
根的ursl 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/


from django.conf.urls import url
from .views import idc_list

urlpatterns = [
    url("^idcs/$",idc_list)
]
idcs.urls 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/


from django.shortcuts import render

from  django.http import HttpResponse
from  .models import Idc
from  .serializers import IdcSerializer
from rest_framework.renderers import JSONRenderer
from  rest_framework.parsers import JSONParser




def idc_list(request,*args,**kwargs):
   if request.method == "GET":
        #从数据库查询所有的数据
        queryset    = Idc.objects.all()
        #将查询的结果进行序列化操作，因为查询的结果有多条数据，因此我们需要加一个"many=True"属性，表示序列化查询出来的所有数据
        serializer  = IdcSerializer(queryset,many=True)
        #将数据转换成JSON格式的字符串
        content = JSONRenderer().render(serializer.data)
        return HttpResponse(content,content_type="application/json")

   elif request.method == "POST":
       #解析字符串
       data = JSONParser().parse(request)
       #将字符串进行序列化操作并判断序列化后 数据是否有效，如果有效就写入数据库！
       serializer = IdcSerializer(data=data)
       if serializer.is_valid():
           serializer.save()
           content = JSONRenderer().render(serializer.data)
           return HttpResponse(content, content_type="application/json")
   return HttpResponse("尹正杰到此一游！")
idcs.views 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/


from django.shortcuts import render

from  django.http import HttpResponse
from  .models import Idc
from  .serializers import IdcSerializer
from rest_framework.renderers import JSONRenderer
from  rest_framework.parsers import JSONParser




def idc_list(request,*args,**kwargs):
   if request.method == "GET":
        #从数据库查询所有的数据
        queryset    = Idc.objects.all()
        #将查询的结果进行序列化操作，因为查询的结果有多条数据，因此我们需要加一个"many=True"属性，表示序列化查询出来的所有数据
        serializer  = IdcSerializer(queryset,many=True)
        #将数据转换成JSON格式的字符串
        content = JSONRenderer().render(serializer.data)
        return HttpResponse(content,content_type="application/json")

   elif request.method == "POST":
       #解析字符串
       data = JSONParser().parse(request)
       #将字符串进行序列化操作并判断序列化后 数据是否有效，如果有效就写入数据库！
       serializer = IdcSerializer(data=data)
       if serializer.is_valid():
           serializer.save()
           content = JSONRenderer().render(serializer.data)
           return HttpResponse(content, content_type="application/json")
   return HttpResponse("尹正杰到此一游！")


def idc_detail(request,pk,*args,**kwargs):
   try:
       # 获取某个主键的ID，获取一条数据
       idc = Idc.objects.get(pk=pk)
   except Idc.DoesNotExist:
       return HttpResponse(status=404)

   if request.method == "GET":
       serializer = IdcSerializer(idc)
       content = JSONRenderer().render(serializer.data)
       return HttpResponse(content, content_type="application/json")

   elif request.method == "POST":
       content = JSONParser().parse(request)
       serializer = IdcSerializer(data=content)
       if serializer.is_valid():
           serializer.save()
           content = JSONRenderer().render(serializer.data)
           return HttpResponse(content, content_type="application/json")
idcs.serializers 文件内容

3>.web端访问

 4>.服务端访问日志

二.案例二

1>.目录结构如下图所示

2>.各个文件代码如下

"""yinzhengjie_devops URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.conf.urls import url,include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r"^",include("idcs.urls"))
]
根的ursl 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/


from django.conf.urls import url
from .views import idc_list,idc_detail

urlpatterns = [
    url("^idcs/$",idc_list),
    #下面的?P表示需要传递一个参数，而<pk>表示是给参数P起了一个名称，后面的[0-9]+正则表示改值的取值范围。
    url("^idcs/(?P<pk>[0-9]+)/$", idc_detail)
]
idcs.urls 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/


from django.shortcuts import render

from  django.http import HttpResponse,JsonResponse
from  .models import Idc
from  .serializers import IdcSerializer
from rest_framework.renderers import JSONRenderer
from  rest_framework.parsers import JSONParser




def idc_list(request,*args,**kwargs):
   if request.method == "GET":
        #从数据库查询所有的数据
        queryset    = Idc.objects.all()
        #将查询的结果进行序列化操作，因为查询的结果有多条数据，因此我们需要加一个"many=True"属性，表示序列化查询出来的所有数据
        serializer  = IdcSerializer(queryset,many=True)
        #将数据转换成JSON格式的字符串
        content = JSONRenderer().render(serializer.data)
        return HttpResponse(content,content_type="application/json")

   elif request.method == "POST":
       #解析字符串
       data = JSONParser().parse(request)
       #将字符串进行序列化操作并判断序列化后 数据是否有效，如果有效就写入数据库！
       serializer = IdcSerializer(data=data)
       if serializer.is_valid():
           serializer.save()
           content = JSONRenderer().render(serializer.data)
           return HttpResponse(content, content_type="application/json")
   return HttpResponse("尹正杰到此一游！")


def idc_detail(request,pk,*args,**kwargs):
   try:
       # 获取某个主键的ID，获取一条数据
       idc = Idc.objects.get(pk=pk)
   except Idc.DoesNotExist:
       return HttpResponse(status=404)

   if request.method == "GET":
       serializer = IdcSerializer(idc)
       content = JSONRenderer().render(serializer.data)
       return HttpResponse(content, content_type="application/json")

   elif request.method == "POST":
       data = JSONParser().parse(request)
       serializer = IdcSerializer(data=data)
       if serializer.is_valid():
           serializer.save()
           content = JSONRenderer().render(serializer.data)
           return HttpResponse(content, content_type="application/json")
       return JsonResponse(serializer.errors,status=400)

   elif request.method == "DELETE":
       idc.delete()
       #给前端返回空数据
       return HttpResponse(status=204)
idcs.views 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/



from django.db import models


class Idc(models.Model):
    name    = models.CharField("机房名称",max_length=32)
    address = models.CharField("机房地址",max_length=256)
    phone   = models.CharField("联系人",max_length=15)
    email   = models.EmailField("邮件地址",default="null")
    letter  = models.CharField("IDC简称",max_length=5)

    def __str__(self):
        return self.name

    class Meta:
        db_table = "resources_idc"
idcs.moudels 文件内容
# ！/usr/bin/env python
# _*_conding:utf-8_*_
# @author :yinzhengjie
# blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/



from rest_framework import serializers
from .models import Idc


class IdcSerializer(serializers.Serializer):
    """
        IDC序列化类
    """
    id          = serializers.IntegerField(read_only=True)                          #把当前字段设置为只读属性，如果给改字段穿参数会被忽略！
    name        = serializers.CharField(required=True,max_length=32,min_length=2)   #我们要求用户必须对改字段传参数，而且传参数对长度必须在2～32个字符之间！下面字段中对属性同理！
    address     = serializers.CharField(required=True,max_length=256)
    phone       = serializers.CharField(required=True,max_length=15)
    email       = serializers.EmailField(required=True)
    letter      = serializers.CharField(required=True,max_length=5)

    def create(self, validated_data):
        return Idc.objects.create(**validated_data)

    def update(self, instance, validated_data):
        instance.name = validated_data.get("name",instance.name)
        instance.address = validated_data.get("address", instance.address)
        instance.phone = validated_data.get("phone", instance.phone)
        instance.email = validated_data.get("email", instance.email)
        instance.save()                                                              #这里这里的save方法会把数据写入到数据库中！
        return instance
idcs.serializers 文件内容

3>.启动项目后，模拟浏览器访问服务，获取相应的数据信息

bogon:~ yinzhengjie$ http  http://127.0.0.1:8000/idcs/3/
HTTP/1.0 200 OK
Content-Length: 196
Content-Type: application/json
Date: Thu, 28 Feb 2019 09:13:58 GMT
Server: WSGIServer/0.2 CPython/3.6.6
X-Frame-Options: SAMEORIGIN

{
    "address": "北京亦庄经济开发区荣华南路11号",
    "email": "yinzhengjie@mail.caiq.org.cn",
    "id": 3,
    "letter": "yz",
    "name": "中国检验检疫科学研究员亦庄机房",
    "phone": "010-53897343"
}

bogon:~ yinzhengjie$ 
bogon:~ yinzhengjie$ 
bogon:~ yinzhengjie$ http  http://127.0.0.1:8000/idcs/2/
HTTP/1.0 200 OK
Content-Length: 157
Content-Type: application/json
Date: Thu, 28 Feb 2019 09:14:02 GMT
Server: WSGIServer/0.2 CPython/3.6.6
X-Frame-Options: SAMEORIGIN

{
    "address": "高碑店",
    "email": "jky@mail.caiq.org.cn",
    "id": 2,
    "letter": "gbd",
    "name": "中国检验检疫科学研究院高碑店机房",
    "phone": "010-53897343"
}

bogon:~ yinzhengjie$ 
bogon:~ yinzhengjie$ http  http://127.0.0.1:8000/idcs/1/
HTTP/1.0 200 OK
Content-Length: 196
Content-Type: application/json
Date: Thu, 28 Feb 2019 09:14:06 GMT
Server: WSGIServer/0.2 CPython/3.6.6
X-Frame-Options: SAMEORIGIN

{
    "address": "北京亦庄经济开发区荣华南路11号",
    "email": "yinzhengjie@mail.caiq.org.cn",
    "id": 1,
    "letter": "yz",
    "name": "中国检验检疫科学研究员亦庄机房",
    "phone": "010-53897343"
}

bogon:~ yinzhengjie$
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原文地址：https://www.cnblogs.com/yinzhengjie/p/10447583.html