settings.py
CAPTCHA_OUTPUT_FORMAT = ‘%(text_field)s %(hidden_field)s %(image)s‘ CAPTCHA_NOISE_FUNCTIONS = ( # 设置样式 ‘captcha.helpers.noise_null‘, # 设置干扰线 ‘captcha.helpers.noise_arcs‘, # 设置干扰点 ‘captcha.helpers.noise_dots‘, ) # 图片大小 CAPTCHA_IMAGE_SIZE = (100, 25) # 设置图片背景色 CAPTCHA_BACKGROUND_COLOR = ‘#ffffff‘ # 图片中的文字为随机数字表达式 CAPTCHA_CHALLENGE_FUNCT = ‘captcha.helpers.math_challenge‘ # 设置字符的个数 CAPTCHA_LENGTH = 4 # 设置超时 CAPTCHA_TIMEOUT = 1
views.py
from django.shortcuts import render from django.contrib.auth.models import User from django.contrib.auth import login, authenticate from .forms import CaptchaTestForm from django.http import JsonResponse from captcha.models import CaptchaStore # Create your views here. def loginView(request): if request.method == ‘POST‘: form = CaptchaTestForm(request.POST) if form.is_valid(): u = form.cleaned_data[‘username‘] p = form.cleaned_data[‘password‘] if User.objects.filter(username=u): user = authenticate(username=u, password=p) if user: if user.is_active: login(request, user) tips = ‘登录成功‘ else: tips = ‘用户名或密码错误‘ else: tips = ‘用户不存在，请注册‘ else: form = CaptchaTestForm() return render(request, ‘user.html‘, locals()) def ajax_val(request): if request.is_ajax(): r = request.GET[‘response‘] h = request.GET[‘hashkey‘] cs = CaptchaStore.objects.filter(response=r, hashkey=h) if cs: json_data = {‘status‘: 1} else: json_data = {‘status‘: 0} return JsonResponse(json_data) else: json_data = {‘status‘: 0} return JsonResponse(json_data)
user.htm
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <link rel="stylesheet" href="https://unpkg.com/mobi.css/dist/mobi.min.css"> </head> <body> <div class="flex-center"> <div class="container"> <div class="flex-center"> <div class="unit-1-2 unit-1-on-mobile"> <h1>Mydjango Verification</h1> {% if tips %} <div>{{ tips }}</div> {% endif %} <form action="" class="form" method="post"> {% csrf_token %} <div>用户名：{{ form.username }}</div> <div>密码：{{ form.password }}</div> <div>验证码：{{ form.captcha }}</div> <button type="submit" class="btn btn-primary btn-block">确定</button> </form> </div> </div> </div> </div> <script> $(‘.captcha‘).click(function () { console.log(‘click‘); $.getJSON("/captcha/refresh/", function (result) { $(‘.captcha‘).attr(‘src‘, result[‘image_url‘]); $(‘#id_captcha_0‘).val(result[‘key‘]) }); }); $(‘#id_captcha_1‘).blur(function () { json_data = { ‘response‘: $(‘#id_captcha_1‘).val(), ‘hashkey‘: $(‘#id_captcha_0‘).val() } $.getJSON(‘/ajax_val‘, json_data, function (data) { $(‘#captcha_status‘).remove() if (data[‘status‘]) { $(‘#id_captcha_1‘).after(‘<span id="captcha_status">验证码正确</span>‘) } else { $(‘#id_captcha_1‘).after(‘<span id="captcha_status">验证码错误</span>‘) } }) }) </script> </body> </html>
forms.py
from django import forms from captcha.fields import CaptchaField class CaptchaTestForm(forms.Form): username = forms.CharField(label=‘用户名‘) password = forms.CharField(label=‘密码‘, widget=forms.PasswordInput) captcha = CaptchaField()
原文：https://www.cnblogs.com/yellowhat/p/12342276.html