view2320

图片验证码和接口

1.django 缓存设置

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

1.2 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

在这里插入图片描述

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"

  


 

  


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