DjangoWeb：快速实现注册登录

1.首先在Models创建用户表（设计数据库）然后同步数据库

class User(models.Model):
    username=models.CharField(max_length=50)
    password=models.CharField(max_length=50)
    email=models.EmailField()

2.创建视图（逻辑层）

打开view文件在view中创建表单和view层方法

#创建表单
from django import forms
from models import User
class UserForm(forms.Form):
    username=forms.CharField(label='用户名：',max_length=100)
    password=forms.CharField(label='密码：',widget=forms.PasswordInput())
    email=forms.EmailField(label='电子邮件：')

#Create your views here
def register(request):
    if request.method=='POST':
        uf=UserForm(request.POST)
        if uf.is_valid():
            #获取表单信息
            username=uf.cleaned_data['username']
            password=uf.cleaned_data['password']
            email=uf.cleaned_data['email']
            #将表单写入数据库
            user=User()
            user.username=username
            user.password=password
            user.email=email
            user.save()

            return render_to_response('success.html',{'username':username})
    else:
        uf=UserForm()
        return render_to_response('register.html',{'uf':uf})

在这个逻辑中主要做了几件事情，首页提供给用户一个注册的页面（register.html）UserForm类定义了表单在注册页面上的显示。接受用户填写的表单信息，然后将表单信息写入数据库，最后返回给用户一个注册成功的页面（success.html）

3.创建前端页面（创建模板页面）

register.html
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>用户注册</title>
</head>
     <style type="text/css">
         body{color:#efd; background:#435; padding:0 5em; margin:0}
         h1{padding:2em lem; background:#675}
         h2{color:#bf8; border-top:lpx dotted #fff; margin-top:2em}
         p{margin: lem 0}
     </style>
<body>
<h1>注册页面：</h1>
<form method='post' enctype="multipart/form-data">
    {{ uf.as_p }}
    <input type="submit" value="ok"/>
</form>
</body>
</html>

success.html
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title></title>
</head>
<body>
<h1>恭喜{{username}}，注册成功!</h1>
</body>
</html>

4.设置模版路径

5.设置URL

遇到的问题，在注册界面进去之后出现类这样的问题：

Forbidden (403)

CSRF verification failed. Request aborted.
Help

Reason given for failure:

    CSRF token missing or incorrect.
    

In general, this can occur when there is a genuine Cross Site Request Forgery, or when Django's CSRF mechanism has not been used correctly. For POST forms, you need to ensure:

    Your browser is accepting cookies.
    The view function uses RequestContext for the template, instead of Context.
    In the template, there is a {% csrf_token %} template tag inside each POST form that targets an internal URL.
    If you are not using CsrfViewMiddleware, then you must use csrf_protect on any views that use the csrf_token template tag, as well as those that accept the POST data.

You're seeing the help section of this page because you have DEBUG = True in your Django settings file. Change that to False, and only the initial error message will be displayed.

You can customize this page using the CSRF_FAILURE_VIEW setting.

解决办法：http://www.xiaomastack.com/2014/08/04/djangoformerr/

感谢这位大哥详细清晰的解答！！

6.体验注册

--------------------------------------------------------------------------

再写一个登录的

设用户登录的表单，方法和前端模版

# 登录
#定义表单类型
class UserLoginForm(forms.Form):
    username=forms.CharField(label='用户名',max_length=100)
    password=forms.CharField(label='密码',widget=forms.PasswordInput())
#登录login
def login(request):
    if request.method=='POST':
        print("post")
        uf=UserLoginForm(request.POST)
        if uf.is_valid():
            #获取表单信息
            username=uf.cleaned_data['username']
            password=uf.cleaned_data['password']
            #获得的表单和数据库比较
            try:
                user=User.objects.get(username=username,password=password)
                print("canget")
                return render_to_response('success.html',{'username':username})
            except ObjectDoesNotExist:
                return HttpResponseRedirect('/login/',{'uf':uf},context_instance=RequestContext(request))
    else:
        print("login")
        uf=UserLoginForm()
    return render_to_response('login.html',{'uf':uf},context_instance=RequestContext(request))

设计表单的前端模板

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>登录</title>
</head>

     <style type="text/css">
         body{color:#efd; background:#435; padding:0 5em; margin:0}
         h1{padding:2em lem; background:#675}
         h2{color:#bf8; border-top:lpx dotted #fff; margin-top:2em}
         p{margin: lem 0}
     </style>

<body>
<h1>登录页面：</h1>
<form method='post' enctype="multipart/form-data">
    {% csrf_token %}
    {{ uf.as_p }}
    <input type="submit" value="ok"/>
</form>

</body>
</html>

最后设置路径/配置URL/就OK拉拉

http://www.xiaomastack.com/2014/08/04/djangoformerr/

DjangoWeb： 快速实现注册登录

DjangoWeb：快速实现注册登录