【Django笔记四】Django2.0中的表单


 一、环境版本信息:

       操作系统:windows10

       Django版本:2.0.5

       Python版本:3.6.4

       Mysql版本: 5.5.53   安装mysql

二、基础信息

      1、App中的模型models.py

from django.db import models

# Create your models here.
class users(models.Model): blog_username = models.CharField(max_length=20) blog_link = models.CharField(max_length=50) class account(models.Model): blog_account = models.CharField(max_length=20) blog_password = models.CharField(max_length=20) blog_username = models.CharField(max_length=20)

          app_users表插入数据:

          

          app_account表插入数据:

          

     2、在模板文件夹中新建londing.html

<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
</head>
<body >
  <form action="/londing" method="get">
        账号:<input type="text" name="account"> 密码:<input type="text" name="password"> <input type="submit" value="登陆"> </form> </body> </html>

      3、视图views.py

from django.shortcuts import render
from App.models import users,account from django.http import HttpResponse # Create your views here.

def index(request): user = users.objects.get(id=1) context = {'user':user} return render(request, 'index.html', context) def londing_form(request): #添加表单页面 context = {} return render(request,'landing.html',context) def londing(request): #数据接收和处理 if 'account' in request.GET: user_account = request.GET['account'] password = request.GET['password'] username = account.objects.get(blog_account = user_account).blog_username #在数据库account表中获取账号对应的用户名(昵称) user = users.objects.get(blog_username = username) #在users表中获取所有信息 context = {'user':user} return render(request, 'index.html', context) #在index.html中显示信息

       4、修改路径urls.py

from django.contrib import admin
from django.urls import path from App import views urlpatterns = [ path('admin/', admin.site.urls), path(r'index/',views.index), path(r'londing_form/',views.londing_form), path(r'londing/',views.londing), ]

三、GET请求测试

        上面的代码都是以get请求写的直接开启服务器: python manage.py runserver

         

        

四、POST请求测试

       1、修改landing.html  注意:action部分相比get请求结尾多了一个“/”

<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
</head>
<body >
  <form action="/londing/" method="post">    
      {% csrf_token %}    csrf 全称是 Cross Site Request Forgery。这是Django提供的防止伪装提交请求的功能。POST 方法提交的表格,必须有此标签。
        账号:<input type="text" name="account"> 密码:<input type="text" name="password"> <input type="submit" value="登陆"> </form> </body> </html>

       2、修改views.py中的londing函数

def londing(request):
    if request.POST: user_account = request.POST['account'] password = request.POST['password'] username = account.objects.get(blog_account = user_account).blog_username user = users.objects.get(blog_username = username) context = {'user':user} return render(request, 'index.html', context)

        3、测试

        

        

 


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