urls.py
from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^fm/', views.fm, name='fm'),
]
views.py
from django.shortcuts import render, redirect, HttpResponse
# ###################form#############################
from django import forms
class FM(forms.Form):
# username,password,email必须与template的form 中name属性字段一致
username = forms.CharField(error_messages={'required': '用户名不能为空'})
password = forms.CharField(
max_length=12,
min_length=6,
error_messages={'required': '密码不能为空', 'min_length': '密码小于6', 'max_length': '密码大于12'}
)
email = forms.EmailField(error_messages={'required': '邮箱不能为空', 'invalid': '邮箱格式错误'})
def fm(request):
if request.method == 'POST':
obj = FM(request.POST)
if obj.is_valid():
# 这里obj.cleaned_data是一个字典,如果存数据,例如:
# models.xxx.objects.create(**obj.cleaned_data) 注册就完成了.
# print obj.cleaned_data
return redirect('/xxx/')
else:
print obj.errors
else:
obj = FM()
return render(request, 'fm.html', {'obj': obj})
template
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/html">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<form action="/fm/" method="post">
{% csrf_token %}
写法一
<p><input type="text" placeholder="username" name="username">{{ obj.errors.username.0 }}</p>
<p><input type="text" placeholder="password" name="password">{{ obj.errors.password.0 }}</p>
<p><input type="text" placeholder="email" name="email">{{ obj.errors.email.0 }}</p>
<input type="submit" value="submit">
写法二
<p>{{ obj.username }} {{ obj.errors.username.0 }}</p>
<p>{{ obj.password }} {{ obj.errors.password.0 }}</p>
<p>{{ obj.email }} {{ obj.errors.email.0 }}</p>
<input type="submit" value="submit">
写法三
<p>{{ obj.as_p }}</p>
<input type="submit" value="submit">
或者
<table>{{ obj.as_table }}</table>
<input type="submit" value="submit">
或者
<p>{{ obj.as_ul }}</p>
<input type="submit" value="submit">
</form>
</body>
</html>
