• 设置django缓存+验证码图片接口


    1.django 缓存设置

    1.1 安装Django缓存模块

    pip install django-redis==4.12.1

    1.2 syl/settings.py 中配置缓存

     # 缓存配置 
     CACHES = { 
         # django存缓默认位置,redis 0号库 
         # default: 连接名称 
         "default": { 
             "BACKEND": "django_redis.cache.RedisCache", 
             "LOCATION": "redis://127.0.0.1:6379/0", 
             "OPTIONS": { 
                 "CLIENT_CLASS": "django_redis.client.DefaultClient", 
             } 
         },
         # django session存 reidis 1 号库(现在基本不需要使用) 
         "session": { 
             "BACKEND": "django_redis.cache.RedisCache", 
             "LOCATION": "redis://127.0.0.1:6379/1", 
             "OPTIONS": { 
                 "CLIENT_CLASS": "django_redis.client.DefaultClient", 
             } 
         },
         # 图形验证码,存redis 2号库 
         "img_code": { 
             "BACKEND": "django_redis.cache.RedisCache", 
             "LOCATION": "redis://127.0.0.1:6379/2", 
             "OPTIONS": { 
                 "CLIENT_CLASS": "django_redis.client.DefaultClient", 
             } 
         } 
     }
     # 配置session使用redis存储 
     SESSION_ENGINE = "django.contrib.sessions.backends.cache" 
     # 配置session存储的位置: 使用cache中的 session配置 
     SESSION_CACHE_ALIAS = "session"
    

    2.新建应用verifications

    • 图形验证码
    • 短信验证码
    • 邮件验证
     '''2.1 在apps文件夹下新建应用: verifications''' 
     python ../manage.py startapp verifications # 切换到apps文件夹下执行创建命令
     '''2.2 在syl/settings.py中添加应用''' 
     INSTALLED_APPS = [ 
         'verifications.apps.VerificationsConfig', 
     ]
    
     '''2.3 在syl/urls.py主路由中添加''' 
     path('verify/', include('verifications.urls')), 
    
     '''2.4 添加子路由: verifications/urls.py''' 
     from django.urls import path 
     from . import views 
     urlpatterns = [ 
         # path('image_codes/', views.ImageCodeView.as_view()) 
     ]
    

    3.图形验证码captcha使用

     1.下载captcha压缩包captcha.zip,放到项目packages文件夹下 
     2.解压captcha.zip放到syl/libs文件夹下 
     3.解压文件中的syl/libs/captcha/captcha.py 右键运行即可生成图片验证码 unzip xxx.zip
    

    4.在verifications/views.py中使用

     from django.http import HttpResponse, HttpResponseForbidden 
     from django.views import View 
     from django_redis import get_redis_connection 
     from libs.captcha.captcha import captcha 
    
     class ImageCodeView(View): 
         def get(self, request): 
             # 1.接收数据 
             uuid = request.GET.get('uuid') 
    
             # 2.校验数据 
             if not uuid: 
                 return HttpResponseForbidden('uuid无效') 
    
             # 3.处理业务 
             # 获取图片文本内容和图片二进制代码 
             text, image = captcha.generate_captcha() 
    
             # 4.把uuid和图片文本存入redis 
             redis_client = get_redis_connection('img_code') # 获取redis客户端 
    
             # 5.写入redis(是字符串) 
             redis_client.setex(uuid, 60 * 5, text) 
    
             # 6.返回响应图片
             return HttpResponse(image, content_type='image/jpg')
    

    5.测试验证码接口

    http://192.168.56.100:8888/verify/image_codes/?uuid=66ea64aa-fbe6-11ea-a3d3- 005056c00008

     127.0.0.1:6379># select 2 
     OK
     127.0.0.1:6379[2]># keys * 
     1) "66ea64aa-fbe6-11ea-a3d3-005056c00008" 
     127.0.0.1:6379[2]># get 66ea64aa-fbe6-11ea-a3d3-005056c00008 
     "JEZ6"
    

    Vue下载链接: https://gitee.com/cc1204/gitproject/branches

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  • 原文地址:https://www.cnblogs.com/ihszg/p/13775630.html
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