问题描述
我已经在apache2中使用mod_wsgi部署了flask应用程序
现在，检查一切是否按预期进行，看起来像我的渲染模板端点引发了大约500个状态代码错误。
这是我的项目的近似树：
main_folder
requirements.txt
mainfile.wsgi
app_folder
controllers
views.py
models
repository
services
static
templates
terms
en
terms.html
fr
terms.html
uploads
__init__.py
config.cfg
webapp.py
我正在呼叫一个应该渲染templates/terms/en/terms.html的端点，并且在日志中得到以下内容：
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/flask/app.py",line 2446,in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python3.7/dist-packages/flask/app.py",line 1951,in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python3.7/dist-packages/flask/app.py",line 1820,in handle_user_exception
reraise(exc_type,exc_value,tb)
File "/usr/local/lib/python3.7/dist-packages/flask/_compat.py",line 39,in reraise
raise value
File "/usr/local/lib/python3.7/dist-packages/flask/app.py",line 1949,in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python3.7/dist-packages/flask/app.py",line 1935,in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/var/www/main_folder/app_folder/controllers/views.py",line 33,in gts
return render_template('terms/' + lang + '/terms.html')
File "/usr/local/lib/python3.7/dist-packages/flask/templating.py",line 138,in render_template
ctx.app.jinja_env.get_or_select_template(template_name_or_list),File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py",line 869,in get_or_select_template
return self.get_template(template_name_or_list,parent,globals)
File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py",line 830,in get_template
return self._load_template(name,self.make_globals(globals))
File "/usr/local/lib/python3.7/dist-packages/jinja2/environment.py",line 804,in _load_template
template = self.loader.load(self,name,globals)
File "/usr/local/lib/python3.7/dist-packages/jinja2/loaders.py",line 113,in load
source,filename,uptodate = self.get_source(environment,name)
File "/usr/local/lib/python3.7/dist-packages/flask/templating.py",line 60,in get_source
return self._get_source_fast(environment,template)
File "/usr/local/lib/python3.7/dist-packages/flask/templating.py",line 89,in _get_source_fast
raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: terms/en/terms.html
这是我尝试在app_folder/controllers/views.py中渲染模板的代码摘录：
from flask import render_template,request,send_file
from app_folder.controllers import Controllers as controllers
def gts(lang='fr'):
return render_template('terms/' + lang + '/terms.html')
controllers().register(
'/cgu/<string:lang>','cgu_lang',gts
)
我想指定具有JSON正文结果的端点正常运行，上传资源也正常工作，并且获取上传资源正在工作。
只有应渲染模板的端点不起作用，这使我也担心应使用电子邮件模板发送电子邮件的端点
与wsgi一起提供应用程序时，我应该应用任何修复程序吗？
import pkgutil
METHODS = set([
'GET','POST','PUT','PATCH','DELETE','copY','HEAD','OPTIONS','LINK','UNLINK','PURGE','LOCK','UNLOCK','PROPFIND','VIEW'
])
class Controllers:
class __OnlyOne:
# ======================================================
# the code goes here
# =======================================================
def __init__(self):
self.val = None
self.rules = []
def __str__(self):
return 'self' + self.val
def register(self,rule,view_name,view_func):
r = {}
r["rule"] = rule
r["view_name"] = view_name
r["view_func"] = view_func
self.rules.append(r)
def register_methods(self,view_func,methods=METHODS):
r = {}
r["rule"] = rule
r["view_name"] = view_name
r["view_func"] = view_func
r["methods"] = methods
self.rules.append(r)
def grab(self,app):
for r in self.rules:
if "methods" not in r.keys():
app.add_url_rule(r["rule"],r["view_name"],r["view_func"])
else:
app.add_url_rule(r["rule"],r["view_func"],methods=r["methods"])
# =================================================================
# the code goes up there
# ==================================================================
instance = None
def __new__(cls): # __new__ always a classmethod
if not Controllers.instance:
Controllers.instance = Controllers.__OnlyOne()
return Controllers.instance
def __getattr__(self,name):
return getattr(self.instance,name)
def __setattr__(self,name):
return setattr(self.instance,name)
# import all the modules in folder
__all__ = []
for loader,module_name,is_pkg in pkgutil.walk_packages(__path__):
__all__.append(module_name)
_module = loader.find_module(module_name).load_module(module_name)
globals()[module_name] = _module
解决方法
我将app_folder/templates链接到main_folder，并且现在可以正常运行