forms组件使用

文章目录

• models.py
• views.py
• urls.py
• login.html
• 访问

models.py

class User(models.Model):
    username = models.CharField(max_length=32)
    password=models.CharField(max_length=32)
    email = models.EmailField(max_length=32)

views.py

from django.shortcuts import render,HttpResponse,redirect

# Create your views here.
from django import forms

class UserForm(forms.Form):
    # min_length：不能小于最小字段长度；max_length：不能大于最长字段长度；label：前端展示，便于用户阅读，若不配置则显示username
    username = forms.CharField(min_length=3,max_length=8,label='用户名')
    password = forms.CharField(min_length=3,max_length=8,label='密码')
    email = forms.EmailField(label='邮箱地址')

def login(request):
    form_obj = UserForm()
    return render(request,'login.html',locals())

urls.py

from django.contrib import admin
from django.urls import path
# 导入bms项目
from bms import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('login/',views.login)
]

login.html

    
    
    
    
    


    

        {#     方式1，一次性渲染，封装程度高，不方便扩展#}
        {#    {{ form_obj.as_p }}#}
    
        {#    // 方式2 for循环读取每个字段对象，推荐使用#}
        {% for foo in form_obj %}
            
{{ foo.label }}:{{ foo }}
    
        {% endfor %}
    
    

访问

重启项目，访问http://127.0.0.1:8000/login/