【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
