django 加载html与form 前后台交互

一、加载html

1.编辑scrapyweb/urls.py

from django.conf.urls import url
from webapp.views import index
urlpatterns = [
    url(r'^$', index),
]

2.编辑scrapyweb/webapp/views.py

from django.shortcuts import render_to_response

def index(req):
     return render_to_response('index.html')

3.编辑scrapyweb/webapp/templates/index.html

4.页面展示

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二、form前后台交互--页面跳转

一、编辑scrapyweb/urls.py

from django.conf.urls import url
from webapp.views import index ,scrapy
urlpatterns = [
    url(r'^$', index),
    url(r'^scrapy$', scrapy),
]

2.编辑scrapyweb/webapp/views.py

from django.http import HttpResponse
from django.shortcuts import render_to_response

def index(req):
     return render_to_response('index.html')

# 接收请求数据
def scrapy(request):
    request.encoding='utf-8'
    message='你搜索的内容为: '+request.GET['wd']
    return HttpResponse(message)

3.编辑scrapyweb/webapp/templates/index.html

    
    
    


 //注意这里的设置
    
        
    
    
        
    

4.页面展示

二、form前后台交互--页面不跳转

一、编辑scrapyweb/urls.py

from django.conf.urls import url
from webapp.views import index ,do_scrapy_url
urlpatterns = [
    url(r'^$', index),
    url(r'^do_scrapy_url$', do_scrapy_url),
]

2.编辑scrapyweb/webapp/views.py

from django.shortcuts import render
# Create your views here.
from django.shortcuts import render_to_response
from webapp.scrapyall import start_crawler


def index(req):
    #return HttpResponse('hello django')
    # url=start_crawler("https://blog.csdn.net/")
     return render_to_response('index.html')

# 接收请求数据
def do_scrapy_url(request):
    #u = request.POST.get('user', None)
    #url = request.POST.get('urlval', None)
    ctx = {}
    if request.GET:
        ctx['url'] = request.GET['urlval']
    else:
        ctx['url']='没有url'
    return render(request,'index.html', ctx )

 

3.编辑scrapyweb/webapp/templates/index.html

    
    
    



    {% csrf_token %}
    
    


{{ url }}

4.页面展示