上一篇中,我们已经打开了django自带的用户认证模块,并配置了数据库连接,创建了相应的表,本篇我们将在django自带的用户认证的基础上,实现自己个性化的用户登录和注销模块。
首先,我们自己定义一个用户登录表单(forms.py):
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from django import forms
from django.contrib.auth.models import user
from bootstrap_toolkit.widgets import bootstrapdateinput, bootstraptextinput, bootstrapuneditableinput
class loginform(forms.form):
username = forms.charfield(
required = true,
label = u "用户名" ,
error_messages = { 'required' : '请输入用户名' },
widget = forms.textinput(
attrs = {
'placeholder' :u "用户名" ,
}
),
)
password = forms.charfield(
required = true,
label = u "密码" ,
error_messages = { 'required' : u '请输入密码' },
widget = forms.passwordinput(
attrs = {
'placeholder' :u "密码" ,
}
),
)
def clean( self ):
if not self .is_valid():
raise forms.validationerror(u "用户名和密码为必填项" )
else :
cleaned_data = super (loginform, self ).clean()
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我们定义的用户登录表单有两个域username和password,这两个域都为必填项。
接下来,我们定义用户登录视图(views.py),在该视图里实例化之前定义的用户登录表单
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from django.shortcuts import render_to_response,render,get_object_or_404
from django.http import httpresponse, httpresponseredirect
from django.contrib.auth.models import user
from django.contrib import auth
from django.contrib import messages
from django.template.context import requestcontext
from django.forms.formsets import formset_factory
from django.core.paginator import paginator, pagenotaninteger, emptypage
from bootstrap_toolkit.widgets import bootstrapuneditableinput
from django.contrib.auth.decorators import login_required
from .forms import loginform
def login(request):
if request.method = = 'get' :
form = loginform()
return render_to_response( 'login.html' , requestcontext(request, { 'form' : form,}))
else :
form = loginform(request.post)
if form.is_valid():
username = request.post.get( 'username' , '')
password = request.post.get( 'password' , '')
user = auth.authenticate(username = username, password = password)
if user is not none and user.is_active:
auth.login(request, user)
return render_to_response( 'index.html' , requestcontext(request))
else :
return render_to_response( 'login.html' , requestcontext(request, { 'form' : form, 'password_is_wrong' :true}))
else :
return render_to_response( 'login.html' , requestcontext(request, { 'form' : form,}))
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该视图实例化了之前定义的loginform,它的主要业务逻辑是:
1. 判断必填项用户名和密码是否为空,如果为空,提示"用户名和密码为必填项”的错误信息
2. 判断用户名和密码是否正确,如果错误,提示“用户名或密码错误"的错误信息
3. 登陆成功后,进入主页(index.html)
其中,登录页面的模板(login.html)定义如下:
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<!doctype html>
{ % load bootstrap_toolkit % }
{ % load url from future % }
<html lang = "en" >
<head>
<meta charset = "utf-8" >
<title>数据库脚本发布系统< / title>
<meta name = "description" content = "">
<meta name = "author" content = "朱显杰" >
{ % bootstrap_stylesheet_tag % }
{ % bootstrap_stylesheet_tag "responsive" % }
<style type = "text/css" >
body {
padding - top: 60px ;
}
< / style>
<! - - [ if lt ie 9 ]>
<script src = "//html5shim.googlecode.com/svn/trunk/html5.js" >< / script>
<![endif] - - >
<script src = "//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js" >< / script>
{ % bootstrap_javascript_tag % }
{ % block extra_head % }{ % endblock % }
< / head>
<body>
{ % if password_is_wrong % }
<div class = "alert alert-error" >
<button type = "button" class = "close" data - dismiss = "alert" >×< / button>
<h4>错误!< / h4>用户名或密码错误
< / div>
{ % endif % }
<div class = "well" >
<h1>数据库脚本发布系统< / h1>
<p> < / p>
<form class = "form-horizontal" action = " " method=" post">
{ % csrf_token % }
{{ form|as_bootstrap: "horizontal" }}
<p class = "form-actions" >
< input type = "submit" value = "登录" class = "btn btn-primary" >
<a href = "/contactme/" rel = "external nofollow" rel = "external nofollow" >< input type = "button" value = "忘记密码" class = "btn btn-danger" >< / a>
<a href = "/contactme/" rel = "external nofollow" rel = "external nofollow" >< input type = "button" value = "新员工?" class = "btn btn-success" >< / a>
< / p>
< / form>
< / div>
< / body>
< / html>
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最后还需要在urls.py里添加:
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(r '^accounts/login/$' , 'dbrelease_app.views.login' ),
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最终的效果如下:
1)当在浏览器里输入http://192.168.1.16:8000/accounts/login/,出现如下登陆界面:
2)当用户名或密码为空时,提示”用户名和密码为必填项",如下所示:
3)当用户名或密码错误时,提示“用户名或密码错误",如下所示:
4)如果用户名和密码都正确,进入主页(index.html)。
既然有login,当然要有logout,logout比较简单,直接调用django自带用户认证系统的logout,然后返回登录界面,具体如下(views.py):
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@login_required
def logout(request):
auth.logout(request)
return httpresponseredirect( "/accounts/login/" )
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上面@login_required表示只有用户在登录的情况下才能调用该视图,否则将自动重定向至登录页面。
urls.py里添加:
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(r '^accounts/logout/$' , 'dbrelease_app.views.logout' ),
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/dbanote/article/details/11465447