drf版本控制
基于url的get传参方式
REST_FRAMEWORK={
# "DEFAULT_AUTHENTICATION_CLASSES":["app01.auth.AuthLogin",], # "DEFAULT_PERMISSION_CLASSES":['app01.auth.MyPer'], # "DEFAULT_THROTTLE_CLASSES":["app01.auth.VisitThrottle"], 'DEFAULT_PARSER_CLASSES':['rest_framework.parsers.JSONParser'], 'DEFAULT_THROTTLE_RATES': { 'luffy': '3/mmmmmm' },'DEFAULT_VERSION': 'v1', # 默认版本(从request对象里取不到，显示的默认值)
'ALLOWED_VERSIONS': ['v1', 'v2'], # 允许的版本 'VERSION_PARAM': 'version' # URL中获取值的key}基于url的正则方式
url(r'^(?P<version>[v1|v2]+)/publishs/', views.PublishView.as_view()),
django缓存
CACHES = { 'default': { # 1. MemCache 基于MemCache的缓存 # 'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache', # 'LOCATION': '127.0.0.1:11211', # 2. DB Cache 基于数据库的缓存 # 'BACKEND': 'django.core.cache.backends.db.DatabaseCache', # 'LOCATION': 'my_cache_table', # 3. Filesystem Cache 基于文件的缓存 # 'BACKEND': 'django.core.cache.backends.filebased.FileBasedCache', # 'LOCATION': '/var/tmp/django_cache', # 4. Local Mem Cache 基于内存的缓存 'BACKEND': 'django.core.cache.backends.locmem.LocMemCache', 'LOCATION': 'backend-cache' }}import osimport timeimport djangofrom django.core.cache import cacheos.environ.setdefault('DJANGO_SETTINGS_MODULE', 'backend.settings')django.setup()def basic_use(): s = 'Hello World, Hello Django Cache.' cache.set('key', s) cache_result = cache.get('key') print(cache_result) s2 = 'Hello World, Hello Django Timeout Cache.' cache.set('key2', s2, 5) #5是超时时间 cache_result = cache.get('key2') print(cache_result) time.sleep(5) #5秒后就查不到了 cache_result = cache.get('key2') print(cache_result) passif __name__ == '__main__': basic_use()#实例# 星座运势def constellation(request): data = [] if already_authorized(request): user = get_user(request) constellations = json.loads(user.focus_constellations) else: constellations = all_constellations for c in constellations: result = cache.get(c) if not result: result = thirdparty.juhe.constellation(c) timeout = timeutil.get_day_left_in_second() cache.set(c, result, timeout) logger.info("set cache. key=[%s], value=[%s], timeout=[%d]" %(c, result, timeout)) data.append(result) response = CommonResponseMixin.wrap_json_response(data=data, code=ReturnCode.SUCCESS) return JsonResponse(response, safe=False)
settings:
CACHES = {
'default': { 'BACKEND': 'django.core.cache.backends.filebased.FileBasedCache', # 指定缓存使用的引擎 'LOCATION': r'D:\lqz\vue', # 指定缓存的路径 'TIMEOUT': 300, # 缓存超时时间(默认为300秒,None表示永不过期) 'OPTIONS': { 'MAX_ENTRIES': 300, # 最大缓存记录的数量（默认300） 'CULL_FREQUENCY': 3, # 缓存到达最大个数之后，剔除缓存个数的比例，即：1/CULL_FREQUENCY（默认3） } }}
views:
from django.shortcuts import render,HttpResponse# Create your views here.from django.views.decorators.cache import cache_pageimport time# 单页面缓存缓存5秒# @cache_page(20)def test(request): print('我来了') ctime=time.time() return render(request,'test.html',locals())
templates:
Title 不缓存的{ { ctime }}缓存的的{#{% load cache %}#}{#第一个参数是超时时间，缓存时间，第二个参数是key值，别名#}{#{% cache 10 'test' %}#}{# { { ctime }}#}{#{% endcache %}#}
跨域问题
from django.utils.deprecation import MiddlewareMixinclass CORSMiddle(MiddlewareMixin): def process_response(self,request,response): response['Access-Control-Allow-Origin'] = 'http://127.0.0.1:8001' if request.method == 'OPTIONS': response['Access-Control-Allow-Methods'] = 'PUT,DELETE' response['Access-Control-Allow-Headers']='Content-Type' return response