1. 程式人生 > 實用技巧 >ALTER TABLE ADD COLUMN遇到DRM報錯

ALTER TABLE ADD COLUMN遇到DRM報錯

1安裝Django快取模組

pip install django-redis==4.12.1

2syl/settings.py中配置快取

# 快取配置
CACHES ={
# django存緩預設位置,redis 0號庫
# default: 連線名稱
    "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 號庫(現在基本不需要使用) "session": { "BACKEND": "django_redis.cache.RedisCache", "LOCATION": "redis://127.0.0.1:6379/1", "OPTIONS": { "CLIENT_CLASS": "django_redis.client.DefaultClient", } }, # 圖形驗證碼,存redis 2號庫 "
img_code": { # "BACKEND": "django_redis.cache.RedisCache", "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儲存 SESSION_ENGINE = "django.contrib.sessions.backends.cache" # 配置session儲存的位置: 使用cache中的 session配置 SESSION_CACHE_ALIAS = "session"

3新建應用verifications

在apps檔案下新建應用: verifications

#切換到apps檔案下執行建立命令

python ../manage.py startapp verifications


2 在syl/settings.py中新增應用

INSTALLED_APPS=[
        'verifications.apps.VerificationsConfig'
]


3 在syl/urls.py 主路由中新增

path('verify/', include('verifications.urls')),


4 新增子路由  verifications/urls.py

from django.urls import path
from . import views

urlpatterns = [
path('image_codes/', views.ImageCodeView.as_view())

]

4圖片驗證碼captcha使用

  1.下載captcha壓縮包captcha.zip,放到專案packages資料夾下

  2.解壓captcha.zip放到syl/libs資料夾下

  3.解壓檔案中的syl/libs/captcha/captcha.py 右鍵執行即可生成圖片驗證碼 unzip xxx.zip

5.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.接收資料
        uuid = request.GET.get('uuid')

    # 2.校驗資料
        if not uuid:
            return HttpResponseForbidden('uuid無效')

    # 3.處理業務
    # 獲取圖片文字內容和圖片二進位制程式碼
        text, image = captcha.generate_captcha()

    # 4.把uuid和圖片文字存入redis
        redis_client = get_redis_connection('img_code') # 獲取redis客戶端

    # 5.寫入redis(是字串)
        redis_client.setex(uuid, 60 * 5, text)

    # 6.返回響應圖片
        return HttpResponse(image, content_type='image/jpg')

6.測試驗證碼介面

http://192.168.56.100:8888/verify/image_codes/?uuid=66ea64aa-fbe6-11ea-a3d3005056c00008