一筹莫展 Django显示 MultiValueDictKeyError at /myDetector/ 5C

我试过很多办法了 都没法解决 哥哥们帮忙看看

图片说明

代码见下
mainDealer()函数
def mainDealer(request):
# post = request.POST.items()
print("rawTarget =", request.POST["rawTarget"])
target = reverse("myDetector:tempTest") + '?'
argName = request.POST["paramName"]
argPath = argName.split("?")[0]
argName = argName.split("?")[1]
# dealt by model
lmModel = Judger.readModelFromFile(name=Judger.getFileName(
argName, "2018119", "lm"), obj_hook=Judger.lmFromFile)
cmModel = Judger.readModelFromFile(name=Judger.getFileName(
argName, "2018119", "cm"), obj_hook=Judger.cmFromFile)
lmPredictRst = lmModel.predict(
samples=[
request.POST["paramValue"]],
realRst=[])
cmPredictRst = cmModel.predict(
samples=[
request.POST["paramValue"]],
realRst=[])
judgeRst = {"lm": lmPredictRst[0], "cm": cmPredictRst[0]}
if not judgeRst["lm"]:
addNewMarkedValue(argName, request.POST["paramValue"], "lm", argPath)
if not judgeRst["cm"]:
addNewMarkedValue(argName, request.POST["paramValue"], "cm", argPath)
#
request.session["argName"] = argName
request.session["argPath"] = argPath
request.session["argValue"] = request.POST["paramValue"]
request.session["ip"] = request.META['REMOTE_ADDR']
request.session["judgeRst"] = judgeRst
request.session["rawTarget"] = request.POST["rawTarget"]
target = target[:-1]
return HttpResponseRedirect(target)

urlpatterns = [
url(r'^$', views.mainDealer, name='mainDealer'),
url(r'^tempTest/$', views.tempTest, name='tempTest'),
url(r'^showModels/$', views.showModels, name='showModels'),
url(r'^delOneMarkedValue/$', views.dealMv),
url(r'^reTrain/$', views.reTrain),
url(r'^machineClassificationRst/$', views.readMLClassificationRst),
url(r'^dealMLClassificationRst/$', views.dealMLClassificationRst),
url(r'^xssIntoDb/$', views.xssIntoDb, name='xssIntoDb'),
url(r'^xssDetectorPage/$', views.xssDetectorPage, name='xssDetectorPage'),
url(r'^readXss/$', views.readXss, name='readXss'),
url(r'^xssStateChange/$', views.xssStateChange, name='xssStateChange'),
]

试了request.POST.get() 没有用 依旧报错

2个回答

qq_38678845
qq_38678845 没有用 唉
大约一年之前 回复

如果get操作查询出多个值就会报错,建议使用filter

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在ubuntu下安装了django 1.9, 使用manage.py时有报错:(python版本为2.7和3.4) 比如./manage.py runserver 8888 ``` fenice@fenice:~/WorkSpace/django/mysite$ ./manage.py startapp blog Traceback (most recent call last): File "./manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/core/management/__init__.py", line 331, in execute_from_command_line utility.execute() File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/core/management/__init__.py", line 305, in execute django.setup() File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/__init__.py", line 18, in setup apps.populate(settings.INSTALLED_APPS) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/apps/registry.py", line 115, in populate app_config.ready() File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/admin/apps.py", line 22, in ready self.module.autodiscover() File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/admin/__init__.py", line 26, in autodiscover autodiscover_modules('admin', register_to=site) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/utils/module_loading.py", line 50, in autodiscover_modules import_module('%s.%s' % (app_config.name, module_to_search)) File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module __import__(name) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/admin.py", line 7, in <module> from django.contrib.auth.forms import ( File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/forms.py", line 259, in <module> class SetPasswordForm(forms.Form): File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/forms.py", line 269, in SetPasswordForm help_text=password_validation.password_validators_help_text_html()) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/password_validation.py", line 85, in password_validators_help_text_html help_texts = password_validators_help_texts(password_validators) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/password_validation.py", line 74, in password_validators_help_texts password_validators = get_default_password_validators() File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/utils/lru_cache.py", line 101, in wrapper result = user_function(*args, **kwds) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/password_validation.py", line 21, in get_default_password_validators return get_password_validators(settings.AUTH_PASSWORD_VALIDATORS) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/password_validation.py", line 32, in get_password_validators validators.append(klass(**validator.get('OPTIONS', {}))) File "/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/password_validation.py", line 164, in __init__ with open(password_list_path) as f: IOError: [Errno 2] No such file or directory: u'/usr/local/lib/python2.7/dist-packages/Django-1.9.dev20150709131027-py2.7.egg/django/contrib/auth/common-passwords.txt.gz' ```

问个有关python+django+heroku的问题

``` Traceback (most recent call last): File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute return self.cursor.execute(sql, params) psycopg2.errors.UndefinedTable: relation "auth_user" does not exist LINE 1: ...user"."is_active", "auth_user"."date_joined" FROM "auth_user... The above exception was the direct cause of the following exception: Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 351, in execute_from_command_line utility.execute() File "/app/.heroku/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 325, in execute django.setup() File "/app/.heroku/python/lib/python3.6/site-packages/django/__init__.py", line 18, in setup apps.populate(settings.INSTALLED_APPS) File "/app/.heroku/python/lib/python3.6/site-packages/django/apps/registry.py", line 108, in populate app_config.import_models(all_models) File "/app/.heroku/python/lib/python3.6/site-packages/django/apps/config.py", line 198, in import_models self.models_module = import_module(models_module_name) File "/app/.heroku/python/lib/python3.6/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 978, in _gcd_import File "<frozen importlib._bootstrap>", line 961, in _find_and_load File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 655, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 678, in exec_module File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed File "/app/learning_logs/models.py", line 7, in <module> class Topic(models.Model): File "/app/learning_logs/models.py", line 8, in Topic choices=Help().choices() File "/app/learning_logs/help.py", line 9, in choices for user in users: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 162, in __iter__ self._fetch_all() File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 965, in _fetch_all self._result_cache = list(self.iterator()) File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 238, in iterator results = compiler.execute_sql() File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 840, in execute_sql cursor.execute(sql, params) File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute return self.cursor.execute(sql, params) File "/app/.heroku/python/lib/python3.6/site-packages/django/db/utils.py", line 97, in __exit__ six.reraise(dj_exc_type, dj_exc_value, traceback) File "/app/.heroku/python/lib/python3.6/site-packages/django/utils/six.py", line 658, in reraise raise value.with_traceback(tb) File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute return self.cursor.execute(sql, params) django.db.utils.ProgrammingError: relation "auth_user" does not exist LINE 1: ...user"."is_active", "auth_user"."date_joined" FROM "auth_user... ``` 在heroku bash操作makemigrations,migrate中出现的错误 在本地用这些没问题 settings.py ``` """ Django settings for learning_log project. Generated by 'django-admin startproject' using Django 1.8.5. For more information on this file, see https://docs.djangoproject.com/en/1.8/topics/settings/ For the full list of settings and their values, see https://docs.djangoproject.com/en/1.8/ref/settings/ """ # Build paths inside the project like this: os.path.join(BASE_DIR, ...) import os import django_heroku BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) # Quick-start development settings - unsuitable for production # See https://docs.djangoproject.com/en/1.8/howto/deployment/checklist/ # SECURITY WARNING: keep the secret key used in production secret! SECRET_KEY = 'o47!#$sbu_&=)pnbk63ra!hjbx@+pc=2j42cf(&mx82&hs&ph_' # SECURITY WARNING: don't run with debug turned on in production! DEBUG = True ALLOWED_HOSTS = [] # Application definition INSTALLED_APPS = ( 'whitenoise.runserver_nostatic', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', #my app 'learning_logs', 'users', #other app 'bootstrap3', ) MIDDLEWARE = [ 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'whitenoise.middleware.WhiteNoiseMiddleware', ] MIDDLEWARE_CLASSES = ( 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware', ) ROOT_URLCONF = 'learning_log.urls' TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [], 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', ], }, }, ] WSGI_APPLICATION = 'learning_log.wsgi.application' # Database # https://docs.djangoproject.com/en/1.8/ref/settings/#databases DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'), } } # Internationalization # https://docs.djangoproject.com/en/1.8/topics/i18n/ LANGUAGE_CODE = 'en-us' TIME_ZONE = 'UTC' USE_I18N = True USE_L10N = True USE_TZ = True LOGIN_URL = '/users/login/' # Static files (CSS, JavaScript, Images) # https://docs.djangoproject.com/en/1.8/howto/static-files/ STATIC_URL = '/static/' MEDIA_URL = '/media/' MEDIA_ROOT = os.path.join(BASE_DIR, 'media') STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles') if os.getenv('DATABASE_URL') is not None: import dj_database_url DATABASES['default'] = dj_database_url.config() SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https') ALLOWED_HOSTS = ['stark-anchorage-08076.herokuapp.com'] DEBUG = False BASE_DIR = os.path.dirname(os.path.abspath(__file__)) STATICFILES_DIRS = ( os.path.join(BASE_DIR, 'static'), ) django_heroku.settings(locals()) ``` views.py ``` from django.shortcuts import render from .models import Topic, Entry, Root, Suf_Pre_fix from django.http import HttpResponseRedirect, Http404 from django.core.urlresolvers import reverse from .forms import TopicForm, EntryForm, RootForm from django.contrib.auth.decorators import login_required from .help import Help from django.contrib.auth.models import User # Create your views here. def index(request): return render(request, 'learning_logs/index.html') @login_required def topics(request): topics = Topic.objects.order_by('date_added') context = {'topics': topics} return render(request, 'learning_logs/topics.html', context) @login_required def topic(request, topic_id): topic = Topic.objects.get(id=topic_id) entries = topic.entry_set.order_by('-date_added') context = {'topic': topic,'entries': entries} return render(request, 'learning_logs/topic.html', context) @login_required def new_topic(request): if request.method != 'POST': form = TopicForm() else: form = TopicForm(request.POST) if form.is_valid(): new_topic = form.save(commit=False) new_topic.owner = request.user new_topic.edit_able = request.POST.getlist("edit_able") new_topic.save() return HttpResponseRedirect(reverse('learning_logs:topics')) context = {'form': form, 'users':Help().users()} return render(request, 'learning_logs/new_topic.html', context) @login_required def new_entry(request, topic_id): topic = Topic.objects.get(id=topic_id) if request.method != 'POST': form = EntryForm() else: form = EntryForm(data=request.POST) if form.is_valid(): new_entry = form.save(commit=False) new_entry.topic = topic new_entry.edit_able = request.POST.getlist("edit_able") new_entry.save() return HttpResponseRedirect(reverse('learning_logs:topic',args=[topic_id])) context = {'topic':topic, 'form': form, 'users':Help().users()} return render(request, 'learning_logs/new_entry.html', context) @login_required def edit_entry(request, entry_id): entry = Entry.objects.get(id=entry_id) topic = entry.topic if not Help().check_user(request.user,entry.edit_able) or not Help().check_user(request.user,topic.edit_able): raise Http404 if request.method != 'POST': form = EntryForm(instance=entry) else: form = EntryForm(instance=entry, data=request.POST) if form.is_valid(): edit_entry = form.save(commit=False) edit_entry.edit_able = request.POST.getlist("edit_able") edit_entry.save() return HttpResponseRedirect(reverse('learning_logs:topic',args=[topic.id])) context = {'entry': entry, 'topic': topic, 'form': form ,'users':Help().users()} return render(request, 'learning_logs/edit_entry.html', context) @login_required def roots(request): roots = Root.objects.order_by('date_added') context = {'roots': roots} return render(request, 'learning_logs/roots.html', context) def root(request, root_id): root = Root.objects.get(id=root_id) things = root.things.order_by('-date_added') context = {'root':root, 'things':things} return render(request, 'learning_logs/root.html', context) ``` help.py ``` from django.contrib.auth.models import User class Help(): def __init__(self): pass def choices(self): users=User.objects.all() choices=[] a=1 for user in users: choices.append((a,str(user))) a+=1 return choices def check_user(self,user,users): try: str(users).index(str(user)) except: return False else: return True def users(self): users=[] for user in User.objects.all(): users.append(str(user)) return users def test_list(self,list1): for item in list1: print(type(item)) def test_word(self,item): print(item,type(item)) ```

启动django 一直报错,HTTP 500,找了好久没找到解决的方法

System check identified no issues (0 silenced). May 17, 2017 - 09:19:52 Django version 1.7.11, using settings 'MiguAuto.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CTRL-BREAK. Traceback (most recent call last): File "C:\Python27\lib\wsgiref\handlers.py", line 85, in run self.result = application(self.environ, self.start_response) File "C:\Python27\lib\site-packages\django-1.7.11-py2.7.egg\django\core\handle rs\wsgi.py", line 168, in __call__ self.load_middleware() File "C:\Python27\lib\site-packages\django-1.7.11-py2.7.egg\django\core\handle rs\base.py", line 44, in load_middleware mw_class = import_string(middleware_path) File "C:\Python27\lib\site-packages\django-1.7.11-py2.7.egg\django\utils\modul e_loading.py", line 26, in import_string module = import_module(module_path) File "C:\Python27\lib\importlib\__init__.py", line 37, in import_module __import__(name) ImportError: No module named security [17/May/2017 09:20:03] "GET / HTTP/1.1" 500 59

django backends没有mysql模块?

![图片说明](https://img-ask.csdn.net/upload/201708/16/1502881222_228863.png) 本地测试没有问题,上传项目到云服务器时出现这个错误。py3.4+mysql5.6+pymysql

python报这个错误如何解决

python3 manage.py runserver Traceback (most recent call last): File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 357, in execute autoreload.check_errors(django.setup)() File "/usr/local/lib/python3.5/dist-packages/django/utils/autoreload.py", line 53, in wrapper fn(*args, **kwargs) File "/usr/local/lib/python3.5/dist-packages/django/__init__.py", line 16, in setup from django.urls import set_script_prefix File "/usr/local/lib/python3.5/dist-packages/django/urls/__init__.py", line 1, in <module> from .base import ( File "/usr/local/lib/python3.5/dist-packages/django/urls/base.py", line 9, in <module> from .exceptions import NoReverseMatch, Resolver404 File "/usr/local/lib/python3.5/dist-packages/django/urls/exceptions.py", line 1, in <module> from django.http import Http404 File "/usr/local/lib/python3.5/dist-packages/django/http/__init__.py", line 2, in <module> from django.http.request import ( File "/usr/local/lib/python3.5/dist-packages/django/http/request.py", line 10, in <module> from django.core import signing File "/usr/local/lib/python3.5/dist-packages/django/core/signing.py", line 45, in <module> from django.utils.crypto import constant_time_compare, salted_hmac File "/usr/local/lib/python3.5/dist-packages/django/utils/crypto.py", line 6, in <module> import secrets ImportError: No module named 'secrets' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 401, in execute_from_command_line utility.execute() File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 370, in execute _parser = self.fetch_command('runserver').create_parser('django', 'runserver') File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 244, in fetch_command klass = load_command_class(app_name, subcommand) File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 37, in load_command_class module = import_module('%s.management.commands.%s' % (app_name, name)) File "/usr/lib/python3.5/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 986, in _gcd_import File "<frozen importlib._bootstrap>", line 969, in _find_and_load File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 673, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 665, in exec_module File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed File "/usr/local/lib/python3.5/dist-packages/django/core/management/commands/runserver.py", line 10, in <module> from django.core.servers.basehttp import ( File "/usr/local/lib/python3.5/dist-packages/django/core/servers/basehttp.py", line 17, in <module> from django.core.handlers.wsgi import LimitedStream File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/wsgi.py", line 6, in <module> from django.core.handlers import base File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py", line 8, in <module> from django.urls import get_resolver, set_urlconf File "/usr/local/lib/python3.5/dist-packages/django/urls/__init__.py", line 1, in <module> from .base import ( File "/usr/local/lib/python3.5/dist-packages/django/urls/base.py", line 9, in <module> from .exceptions import NoReverseMatch, Resolver404 File "/usr/local/lib/python3.5/dist-packages/django/urls/exceptions.py", line 1, in <module> from django.http import Http404 File "/usr/local/lib/python3.5/dist-packages/django/http/__init__.py", line 2, in <module> from django.http.request import ( File "/usr/local/lib/python3.5/dist-packages/django/http/request.py", line 10, in <module> from django.core import signing File "/usr/local/lib/python3.5/dist-packages/django/core/signing.py", line 45, in <module> from django.utils.crypto import constant_time_compare, salted_hmac File "/usr/local/lib/python3.5/dist-packages/django/utils/crypto.py", line 6, in <module> import secrets ImportError: No module named 'secrets'

Python部署项目出现问题,求大神指点

最近在学习Python Crash Course这本书,在这本书最后一个项目Web应用程序并将其部署到Heroku时频频出错,在经过跟百度君和看过各位大神的论坛帖子后终于将大部分问题解决,本以为要成功了结果就出现了下面的问题: ![图片说明](https://img-ask.csdn.net/upload/202002/28/1582865779_650830.png) 报错中指出文件出了问题,并提示可以更新关键文件来解决问题,之前看过论坛,解决办法是打开出错文件,并去掉末尾的逗号。 可是,文件路径/app/.heroku/python/lib/python3.8/site-packages/django/contrib/admin/widgets.py根本在电脑中找不到,我猜想这是不是一个隐藏文件,结局非常好——我猜错了。 尝试了各种办法,就是找不见这个文件夹,从开头/app/.heroku就找不到 求大神指点一二! !

python问题。。。django

使用python3 ,django 2.0 settings:![图片说明](https://img-ask.csdn.net/upload/201804/26/1524736446_278370.png) urls:![图片说明](https://img-ask.csdn.net/upload/201804/26/1524736469_421975.png) account/urls:![图片说明](https://img-ask.csdn.net/upload/201804/26/1524742402_30975.png) views:![图片说明](https://img-ask.csdn.net/upload/201804/26/1524736486_516641.png) 我的设置是这样的,请问各位,为什么我访问时出现 Not Found The requested URL /login/ was not found on this server.

django operationalerror:no such table问题

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Django创建超级用户时,出现错误 ValueError: invalid literal for int() with base 10: ''

ERROR exception 135 Internal Server Error: /users/ Traceback (most recent call last): File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/core/handlers/exception.py", line 41, in inner response = get_response(request) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/core/handlers/base.py", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/core/handlers/base.py", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view return view_func(*args, **kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/views/generic/base.py", line 68, in view return self.dispatch(request, *args, **kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/views.py", line 505, in dispatch response = self.handle_exception(exc) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/views.py", line 465, in handle_exception self.raise_uncaught_exception(exc) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/views.py", line 476, in raise_uncaught_exception raise exc File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/views.py", line 502, in dispatch response = handler(request, *args, **kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/generics.py", line 242, in post return self.create(request, *args, **kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/mixins.py", line 19, in create self.perform_create(serializer) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/mixins.py", line 24, in perform_create serializer.save() File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/rest_framework/serializers.py", line 213, in save self.instance = self.create(validated_data) File "/home/python/dihai02/per02/apps/users/serializers/user.py", line 25, in create user = User.objects.create_user(**validated_data) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/contrib/auth/models.py", line 159, in create_user return self._create_user(username, email, password, **extra_fields) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/contrib/auth/models.py", line 153, in _create_user user.save(using=self._db) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/contrib/auth/base_user.py", line 80, in save super(AbstractBaseUser, self).save(*args, **kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/base.py", line 808, in save force_update=force_update, update_fields=update_fields) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/base.py", line 838, in save_base updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/base.py", line 924, in _save_table result = self._do_insert(cls._base_manager, using, fields, update_pk, raw) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/base.py", line 963, in _do_insert using=using, raw=raw) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/manager.py", line 85, in manager_method return getattr(self.get_queryset(), name)(*args, **kwargs) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/query.py", line 1076, in _insert return query.get_compiler(using=using).execute_sql(return_id) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1111, in execute_sql for sql, params in self.as_sql(): File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1064, in as_sql for obj in self.query.objs File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1064, in <listcomp> for obj in self.query.objs File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1063, in <listcomp> [self.prepare_value(field, self.pre_save_val(field, obj)) for field in fields] File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1003, in prepare_value value = field.get_db_prep_save(value, connection=self.connection) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 770, in get_db_prep_save prepared=False) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 762, in get_db_prep_value value = self.get_prep_value(value) File "/home/python/.virtualenvs/yuan/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 1853, in get_prep_value return int(value) ValueError: invalid literal for int() with base 10: ''

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最近想学django,于是照着Django官方文档一步步学,没想到刚到连接数据库,就卡了。 在pycharm上通过django连接MySQL报如图所示错误![图片说明](https://img-ask.csdn.net/upload/201908/25/1566734912_878477.png)![图片说明](https://img-ask.csdn.net/upload/201908/25/1566734921_243846.png)![图片说明](https://img-ask.csdn.net/upload/201908/25/1566734929_53248.png) 网上搜索,试了各种方法,包括改hosts文件和HOST改成127.0.0.1,都不成功。把下面这几行代码注释掉,换成原来的sqlite,就可以成功运行,实在不知道什么原因,请各位大佬帮忙看下怎么解决。 环境:Django2.2.1、MySql8.0 下面是我的setting.py文件。一开始pycharm也连不上Mysql,我改了他的时区,Asia/Shanghai,就可以了,但是Django怎么也连不上 ``` """ Django settings for webProject project. Generated by 'django-admin startproject' using Django 2.2.1. For more information on this file, see https://docs.djangoproject.com/en/2.2/topics/settings/ For the full list of settings and their values, see https://docs.djangoproject.com/en/2.2/ref/settings/ """ import os # Build paths inside the project like this: os.path.join(BASE_DIR, ...) BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) # Quick-start development settings - unsuitable for production # See https://docs.djangoproject.com/en/2.2/howto/deployment/checklist/ # SECURITY WARNING: keep the secret key used in production secret! SECRET_KEY = 'uri0z)r@kn3p)l%6(9if)1$74kv9ag$p@zadp_p$ph_x0(v9h=' # SECURITY WARNING: don't run with debug turned on in production! DEBUG = True ALLOWED_HOSTS = [] # Application definition INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'polls', ] MIDDLEWARE = [ 'django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ] ROOT_URLCONF = 'webProject.urls' TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [os.path.join(BASE_DIR, 'templates')] , 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', ], }, }, ] WSGI_APPLICATION = 'webProject.wsgi.application' # Database # https://docs.djangoproject.com/en/2.2/ref/settings/#databases # DATABASES = { # 'default': { # 'ENGINE': 'django.db.backends.sqlite3', # 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'), # } # } DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'webcrawler', 'USER': 'root', 'PASSWORD': '111111', 'HOST': 'localhost', 'PORT': '3306', } } # Password validation # https://docs.djangoproject.com/en/2.2/ref/settings/#auth-password-validators AUTH_PASSWORD_VALIDATORS = [ { 'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', }, { 'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', }, { 'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator', }, { 'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator', }, ] # Internationalization # https://docs.djangoproject.com/en/2.2/topics/i18n/ LANGUAGE_CODE = 'en-us' TIME_ZONE = 'Asia/Shanghai' USE_I18N = True USE_L10N = True USE_TZ = True # Static files (CSS, JavaScript, Images) # https://docs.djangoproject.com/en/2.2/howto/static-files/ STATIC_URL = '/static/' ```

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File "/usr/lib/python3.6/threading.py", line 916, in _bootstrap_inner self.run() File "/usr/lib/python3.6/threading.py", line 864, in run self._target(*self._args, **self._kwargs) File "/home/jango/django-venv/lib/python3.6/site-packages/django/utils/autoreload.py", line 54, in wrapper fn(*args, **kwargs) File "/home/jango/django-venv/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run self.check(display_num_errors=True) File "/home/jango/django-venv/lib/python3.6/site-packages/django/core/management/base.py", line 390, in check include_deployment_checks=include_deployment_checks, File "/home/jango/django-venv/lib/python3.6/site-packages/django/core/management/base.py", line 377, in _run_checks return checks.run_checks(**kwargs) File "/home/jango/django-venv/lib/python3.6/site-packages/django/core/checks/registry.py", line 72, in run_checks new_errors = check(app_configs=app_configs) File "/home/jango/django-venv/lib/python3.6/site-packages/django/core/checks/urls.py", line 13, in check_url_config return check_resolver(resolver) File "/home/jango/django-venv/lib/python3.6/site-packages/django/core/checks/urls.py", line 23, in check_resolver return check_method() File "/home/jango/django-venv/lib/python3.6/site-packages/django/urls/resolvers.py", line 398, in check for pattern in self.url_patterns: File "/home/jango/django-venv/lib/python3.6/site-packages/django/utils/functional.py", line 80, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "/home/jango/django-venv/lib/python3.6/site-packages/django/urls/resolvers.py", line 579, in url_patterns patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) File "/home/jango/django-venv/lib/python3.6/site-packages/django/utils/functional.py", line 80, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "/home/jango/django-venv/lib/python3.6/site-packages/django/urls/resolvers.py", line 572, in urlconf_module return import_module(self.urlconf_name) File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 665, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 678, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/jango/django-one/blogproject/blogproject/urls.py", line 7, in <module> path('', include('blog.urls')), File "/home/jango/django-venv/lib/python3.6/site-packages/django/urls/conf.py", line 34, in include urlconf_module = import_module(urlconf_module) File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 665, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 678, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/jango/django-one/blogproject/blog/urls.py", line 3, in <module> from . import views File "/home/jango/django-one/blogproject/blog/views.py", line 1, in <module> blog/views.py NameError: name 'blog' is not defined

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大三实习生,字节跳动面经分享,已拿Offer

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