Django 表单

Django框架中 完成form表单提交实例

get 方法

接收用户请求

from django.http import HttpResponse
from django.shortcuts import render
# 表单
def search_form(request):
    return render(request, 'search_form.html')
 
# 接收请求数据
def search(request):  
    request.encoding='utf-8'
    if 'q' in request.GET and request.GET['q']:
        message = '你搜索的内容为: ' + request.GET['q']
    else:
        message = '你提交了空表单'
    return HttpResponse(message)

在模板目录 templates 中添加 search_form.html 表单：

<html>
<head>
<meta charset="utf-8">
<title>IT懒猫 www.catroom.com.cn</title>
</head>
<body>
    <form action="/search/" method="get">
        <input type="text" name="q">
        <input type="submit" value="搜索">
    </form>
</body>
</html>

urls.py 规则修改为如下形式：

from django.conf.urls import url
from . import views,testdb,search
 
urlpatterns = [
    url(r'^hello/$', views.catroom),
    url(r'^testdb/$', testdb.testdb),
    url(r'^search-form/$', search.search_form),
    url(r'^search/$', search.search),
]

post方法

<html>
<head>
<meta charset="utf-8">
<title>IT懒猫 www.catroom.com.cn</title>
</head>
<body>
    <form action="/search-post/" method="post">
        {% csrf_token %}
        <input type="text" name="q">
        <input type="submit" value="搜索">
    </form>
 
    <p>{{ rlt }}</p>
</body>
</html>

在模板的末尾，我们增加一个 rlt 记号，为表格处理结果预留位置。

表格后面还有一个 {% csrf_token %} 的标签。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。

处理post请求：


# -*- coding: utf-8 -*-
 
from django.shortcuts import render
from django.views.decorators import csrf
 
# 接收POST请求数据
def search_post(request):
    ctx ={}
    if request.POST:
        ctx['rlt'] = request.POST['q']
    return render(request, "post.html", ctx)

urls.py规则修改

from django.conf.urls import url
from . import views,testdb,search,search2
 
urlpatterns = [
    url(r'^hello/$', views.hello),
    url(r'^testdb/$', testdb.testdb),
    url(r'^search-form/$', search.search_form),
    url(r'^search/$', search.search),
    url(r'^search-post/$', search2.search_post),
]