如何实现用户注销功能

最新推荐文章于 2025-06-25 19:38:50 发布

原创最新推荐文章于 2025-06-25 19:38:50 发布 · 9k 阅读

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#cookie #login

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HttpResponse()里有个delete_cookie()方法专门用来删除cookie

我们到此来完整的实现一下：访问首页如果没有登录，就跳转到登录页面，登录成功之后再跳转回来的过程。

3个方法，index、login、logout

# coding:utf-8
from django.shortcuts import render,render_to_response

# Create your views here.

from django.http import HttpResponse
from UserClass import UserLogin

def index(request):
    msg = {'username':'guest'}
    if request.COOKIES.get('userlogin_username') != None :
        msg['username'] =  request.COOKIES.get('userlogin_username')
    myReponse = render_to_response("index.html",msg)
    return myReponse

def login(request):
    msg = {'result': ''}

    if request.method == 'POST':
        getUserName = request.POST.get('username')
        getPwd = request.POST.get('pwd')
        # 实例化UserLogin类
        loginObj = UserLogin(getUserName,getPwd)
        if loginObj.isLogin():
            myReponse = HttpResponse("<script>self.location='/index'</script>")
            myReponse.set_cookie('userlogin_username',getUserName,3600)
            return myReponse
        else:
            msg['result'] = '用户名或密码错误'

    myReponse = render_to_response("login.html", msg)
    return myReponse

# 用户注销
def logout(request):
    r = HttpResponse()
    r.delete_cookie('userlogin_username')
    r.write("<script>self.location='/index'</script>")
    return r

首页模板index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>
   <h2>这是首页,当前登录用户是:{{ username }}</h2>
   {% ifequal username "guest" %}
    <p><a href="/login">登录</a></p>
    {% else %}
    <p><a href="/logout">安装退出</a></p>
    {% endifequal %}

</body>
</html>

其中用到了Django的模板语法