图片验证码接口

1、django缓存设置

django的六种缓存(mysql+redis) :https://www.cnblogs.com/xiaonq/p/7978402.html#i6

1.1安装Django缓存模块

pip install django-redis==4.12.1

1.2sylxm/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"

 

 

posted @ 2020-11-06 11:40  晟森正茂时  阅读(141)  评论(0编辑  收藏  举报