django session 的简单操作

#！SESSION_SAVE_EVERY_REQUEST = True      设置根据最后一次操作设置登录超时时间
#！SESSION_EXPIRE_AT_BROWSER_CLOSE = True   设置是否关闭浏览器session 过期
#上面的在setting 里设置

from django.shortcuts import render,redirect,HttpResponse


#登录页面
def login(request):
    if request.method == 'GET':
        return render(request,'logins.html')
    elif request.method == "POST":
        user = request.POST.get('user')
        pwd = request.POST.get('pwd')
        if user == 'root' and pwd == "123":
            #生成随机字符串
            #写到用户浏览器cookie
            #保存到session
            #在随机字符串对应 相对应的字典

            request.session['username'] = user
            request.session['is_login'] = True

            if request.POST.get('rmb',None) == '1':
                #设置登录超市时间
                request.session.set_expiry(10)


            return redirect("/app01/index/")
        else:
            return render(request,'logins.html')


#登录成功后返回
def index(request):
#如果登录后返回页面 否则返回'请登录后访问'


    if request.session.get("is_login",None):
        return render(request,'login.html',{'username' :request.session['username']})
    else:
        return HttpResponse('请登录后访问')

#登录注销
def logout(request):
    #清除当前session
    request.session.clear()
    return redirect("/app01/session/")






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登录模板：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/app01/session/" method="post">
     {% csrf_token %}

    <input type="text" name="user" />
    <input type="text" name="pwd" />
    <input type="checkbox" name="rmb" value="1"> 10秒免登录
    <input type="submit" value="提交">

</form>


</body>
</html>


返回模板：

<h1>欢迎登录：{{ username }},{{ request.session.username }}</h1>
<div style="height: 30px;width: 200px;background: #2ec0f6;text-align: center;line-height: 30px"><a href="/app01/logout/" style="font-size: 20px">注 销 </a></div>

django session 的简单操作

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