1、view.py
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# -*- coding: utf-8 -*-from __future__ import unicode_literalsfrom django.http import HttpResponsefrom polls.models import Testfrom django.shortcuts import render# Create your views here.# 解決亂碼import sysreload(sys)sys.setdefaultencoding('utf-8')# 數據庫操作def testdb(request): test1 = Test(name='溫鴻雨2') test1.save() return HttpResponse("<p>數據添加成功！</p>")# 查詢數據庫def selectDB(request): # 通過objects這個模型管理器的all()獲得所有數據行，相當于SQL中的SELECT * FROM list = Test.objects.all() returnvalue = [] for v in list: returnvalue.append(v.name) print v.name print "++++++++++++獲取單個對象++++++++++++++++++" # 獲取單個對象 response1 = Test.objects.filter(id=1) print response1 for v1 in response1: returnvalue2 = "id : ", v1.id, " 姓名：", v1.name print returnvalue2 print "++++++++++++限制返回的數據 相當于 SQL 中的 OFFSET 0 LIMIT 2;++++++++++++++++++" response2 = Test.objects.order_by('name')[0:2] returnvalue3 = {} for v2 in response2: returnvalue3[v2.id] = v2.name print returnvalue3.items() print "+++++++++++輸出結果：++++++++++++++++++++++++++++++" return HttpResponse(returnvalue3.items())#修改數據可以使用 save() 或 update():def updateDB(request): # 修改其中一個id=1的name字段，再save，相當于SQL中的UPDATE test1 = Test.objects.get(id=1) test1.name = 'Google' test1.save() # 另外一種方式 #Test.objects.filter(id=1).update(name='Google') # 修改所有的列 # Test.objects.all().update(name='Google') return HttpResponse("更新數據成功")def deleteDB(request): # 刪除id=1的數據 test1 = Test.objects.get(id=3) test1.delete() return HttpResponse("刪除數據成功") |
2、urls.py
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"""pythondjango URL ConfigurationThe `urlpatterns` list routes URLs to views. For more information please see:Examples:Function views 1. Add an import: from my_app import views 2. Add a URL to urlpatterns: url(r'^$', views.home, name='home')Class-based views 1. Add an import: from other_app.views import Home 2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home')Including another URLconf 1. Import the include() function: from django.conf.urls import url, include 2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))"""from django.conf.urls import urlfrom django.contrib import adminfrom BlogDjango import viewsfrom polls import views as pollsviews, search, search2urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^hello/+\d', views.hello), url(r'^base/', views.base), url(r'^testdb$', pollsviews.testdb), url(r'^querydb$', pollsviews.selectDB), url(r'^updateDB$', pollsviews.updateDB), url(r'^deleteDB$', pollsviews.deleteDB),] |
3、models.py
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# -*- coding: utf-8 -*-from __future__ import unicode_literalsfrom django.db import models# Create your models here.class Test(models.Model): name = models.CharField(max_length=20) |
以上這篇python django 增刪改查操作 數據庫Mysql就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持服務器之家。
