Python——Django框架——django-simple-captcha（验证码）

1、引用 包

pip install django-simple-captcha

2、将captcha加入setting的 INSTALLED_APPS

3、运行python manager.py migrations 和 python manage.py migrate

4、加入路径

path('captcha/',include('captcha.urls))

5、引入Form表单

from captcha.fields import CaptchaFieldclass captcha = CaptcchaField()#生成图片验证码和输入框

6、ajax动态验证

from django.http import JsonResponse from captcha.models import CaptchaStore def ajax_val(request): if request.is_ajax(): cs = CaptchaStore.objects.filter(response=request.GET['response'], hashkey=request.GET['hashkey']) if cs: json_data={'status':1} else: json_data = {'status':0} return JsonResponse(json_data) else: # raise Http404
        json_data = {'status':0} return JsonResponse(json_data)

view.py

path(r'^ajax_val/',views.ajax_val, name='ajax_val'), #动态验证的路由

<script> $(function(){ $('#id_captcha_1').blur(function(){ // #id_captcha_1为输入框的id，当该输入框失去焦点是触发函数
 json_data={ 'response':$('#id_captcha_1').val(), // 获取输入框和隐藏字段id_captcha_0的数值
            'hashkey':$('#id_captcha_0').val() } $.getJSON('/ajax_val', json_data, function(data){ //ajax发送
 $('#captcha_status').remove() if(data['status']){ //status返回1为验证码正确， status返回0为验证码错误， 在输入框的后面写入提示信息
 $('#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>
  <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>

tempalte

7、ajax刷新

path(r’refresh/$’, views.captcha_refresh, name=’captcha-refresh’)

# 只是源码介绍不用写入本身的代码中
def captcha_refresh(request): """ Return json with new captcha for ajax refresh request """
    if not request.is_ajax(): # 只接受ajax提交
        raise Http404 new_key = CaptchaStore.generate_key() to_json_response = { 'key': new_key, 'image_url': captcha_image_url(new_key), } return HttpResponse(json.dumps(to_json_response), content_type='application/json')

view.py

 $(function(){ $('.captcha').css({ 'cursor': 'pointer' }) # ajax 刷新 $('.captcha').click(function(){ console.log('click'); $.getJSON("/captcha/refresh/", function(result){ $('.captcha').attr('src', result['image_url']); $('#id_captcha_0').val(result['key']) });});

ajax刷新

 

 

 

| |