Django Login Small Case

A, request objects common attributes:

Two, QueryDict objects:

Package is located: django.http.QueryDict
HttpRequest Objects GET and POST attributes are QueryDicttype
With different python dictionary: QueryDict a key target can hold multiple values
get()Method: Get value according to the key, if a key and has a plurality of values, the last value acquired; None key does not exist, if the return value may be set to return a custom default value
getlist()Method: obtaining a plurality of values according to the key, it returns a list of values; empty list if the key is not present is returned []
Demo:

Third, write code:

views view function

from django.shortcuts import render,redirect
from django.http import HttpResponse

# Create your views here.


def index(request):
    return HttpResponse('登录成功')

def login(request):

    return render(request, 'mylogin/login.html')


def login_check(request):

    # 1.获取提交的用户名和密码
    username = request.POST.get('username')  # 表单的name是什么 这里就传什么
    password = request.POST.get('password')

    # 2.校验并返回应答
    if username == 'wen' and password == '123':  # 注意这里写字符串 123要加引号
        return redirect('/index')

    else:
        return redirect('/login')

Template file code

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录页面</title>
</head>
<body>
<h1>注册表单</h1>
<form method='POST' action='/login_check'>
    <p>
        <label for="">用户名：</label>
        <input type="text" name="username">
    </p>

    <p>
        <label for="">密&nbsp;&nbsp;&nbsp;码：</label>
        <input type="password" name="password">
    </p>

    <p>
        <input type="submit" value="登录">
    </p>
</form>
</body>
</html>

Note: Django Dui POST, PUT, PATCH, DELETErequests to open the way CSRF security, to facilitate the test, you can settings.pycomment out the CSRF middleware file, close CSRFprotection

Fourth, case presentations:

V. Summary: This small case mainly understand GET and POST attributes attribute request request.

Django Login Small Case

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