python框架-django中的表单类
一：表单类
一般我们在html中自己写的表单类似于下面的样子
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>表单</title>
</head>
<body>
<form action="www.xxx.com" method="POST">
username:<input type="text" placeholder="username" name="username">
passowrd:<input type="password" placeholder="password" name="password">
submit:<input type="submit">
</form>
</body>
</html># 取值也是 request.POST.get("username") request.POST.get("password")表单类
from django import forms
class Login_Form(forms.Form):
username = forms.CharField(label="你的名字",max_length=20)
password = forms.CharField(label="你的密码",max_length=20)前端代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="user/login/" method="post">
{% csrf_token %}
{{ form }}
<input type="submit" value="Submit" />
</form>
</body>
</html>视图函数
from django.http import HttpResponse
from django.http import JsonResponse
from django.shortcuts import render
from .form_test import Login_Form
def form_test_view(request): # 如果是post请求，将数据绑定到表单，直接存储在request.POST中，取值普通表单一样。
if request.method == "POST":
form = Login_Form(request.POST)
if form.is_valid():
# 检验数据的有效性 # 验证过的数据可以通过 form.cleaned_data取得，格式是一个字典 print(form.cleaned_data)
return HttpResponse("谢谢提交")
else: # 如果是get请求，创建表单实例，将表单中的字段，传递到login.html中，进行渲染，渲染成input文本输入框。
form = Login_Form()
return render(request,"login.html",{"form":form})from django.conf.urls import url
from .views import index
from .views import form_test_view
urlpatterns = [
url(r"^index/",index),
url(r"^login",form_test_view)
]
二：csrf 跨站伪造攻击