django学习笔记6:表单-蒲公英云

django学习笔记6:表单

Django表单

先在app下新建一个forms.py

mytest\test1\forms.py

from django import forms
class AddForm(forms.Form):
    a = forms.IntegerField()
    b = forms.IntegerField()

导入相应的库，定义表单输入的类型

修改mytest\test1\veiws.py

#coding:utf-8
from django.shortcuts import render
from django.http import HttpResponse,HttpResponseRedirect
from django.core.urlresolvers import reverse
from .forms import AddForm
def index(request):
    return HttpResponse("hello world 你好")
def add(request):
    a = request.GET['a']
    b = request.GET['b']
    c = int(a)+int(b)
    return HttpResponse(str(c))
def add2(request, a, b):
    c = int(a) + int(b)
    return HttpResponse(str(c))
def old_add2(request,a,b):
    return HttpResponseRedirect(
        reverse('add2',args=(a,b))
        )
def home(request):
    if request.method =='POST':#数据提交方式
        form = AddForm(request.POST)#包含提交数据
        if form.is_valid():#表单数据是否有效
            a = form.cleaned_data['a']#获取表单数据
            b = form.cleaned_data['b']
            return HttpResponse(str(int(a)+int(b)))
    else:
        form = AddForm()#如果没有提交行为就清空表单
    return render(request,'home.html',{'form':form})

导入刚才编写的forms模块，获取表单数据再操作

视图函数接受到表单提交会执行提交后额程序，没有任何提交就清空表单

修改mytest\test1\templates\home.html

<html>
    {% include 'jcheng.html' %}
    <body>
        {% for i in lista %}
            {
   {i}}
            {% if not forloop.last %}
            ,
            {% endif %}
        {% empty %}
            <li>列表为空</li>
        {% endfor %}
        <br>
        当前的URL：{
   {request.path}}
        <br>
        获取当前GET参数：{
   { request.GET.urlencode }}
        <br>
        hello wolrd 你好！!!!!!
        <br>
        <form  method="post">
            {% csrf_token %}
            {
   { form}}
            <input type="submit" value="OK">
        </form>
    </body>
</html>