如何在Flask中提供静态文件 [英] How to serve static files in Flask
问题描述
Flask
中,现在它只是提供一个静态的HTML页面,其中包含一些链接到CSS和JS的链接。而且我找不到在文件 Flask
中描述了返回静态文件的地方。是的,我可以使用 render_template
,但我知道数据不是模板化的。我以为 send_file
或 url_for
是正确的,但是我无法让这些工作。与此同时,我打开文件,阅读内容,并使用合适的mimetype绑定 Response
: import os.path
$ b $ from flask flask Flask,Response
$ b app = Flask(__ name__)
app .config.from_object(__ name__)
$ b $ def root_dir():#pragma:no cover
return os.path.abspath(os.path.dirname(__ file__))
$ b def get_file(filename):#pragma:no cover
try:
src = os.path.join(root_dir(),filename)
#找出烧瓶如何返回静态文件
#尝试:
# - render_template
# - send_file
#这应该不是那么明显
return open(src ).read()
除了IOError作为exc:
返回str(exc)
@ app.route('/',methods = ['GET' ():$ p $ b $ def $ ent,mimetype =text / html)
@ app.route('/',defaults = {'path':''})
@ app.route ('/< path:path>')
def get_resource(path):#pragma:no cover
mimetypes = {
.css:text / css,
.html:text / html,
.js:application / javascript,
}
complete_path = os.path.join(root_dir )
ext = os.path.splitext(path)[1]
mimetype = mimetypes.get(ext,text / html)
content = get_file(complete_path)
返回响应(content,mimetype = mimetype)
if __name__ =='__main__':#pragma:no cover
app.run(port = 80)
有人想为此提供代码示例或网址吗?我知道这是简单的。
首选的方法是使用nginx或其他web服务器来提供静态文件;他们将能够比Flask更有效地做到这一点。
但是,您可以使用 send_from_directory
从目录发送文件,在某些情况下可能非常方便:
从瓶子导入Flask,request,send_from_directory
#将项目根目录设置为静态文件夹,您可以设置其他的。
app = Flask(__ name__,static_url_path ='')
@ app.route('/ js /< path:path>')
def send_js(path):
return send_from_directory('js',path)
if __name__ ==__main__:
app.run()
不使用 send_file
或 send_static_file
与用户提供的路径。
send_static_file
示例:
from flask import Flask,请求
#将项目根目录设置为静态文件夹,您可以设置其他项目。
app = Flask(__ name__,static_url_path ='')
@ app.route('/')
def root():
return app.send_static_file 'index.html')
So this is embarrassing. I've got an application that I threw together in Flask
and for now it is just serving up a single static HTML page with some links to CSS and JS. And I can't find where in the documentation Flask
describes returning static files. Yes, I could use render_template
but I know the data is not templatized. I'd have thought send_file
or url_for
was the right thing, but I could not get those to work. In the meantime, I am opening the files, reading content, and rigging up a Response
with appropriate mimetype:
import os.path
from flask import Flask, Response
app = Flask(__name__)
app.config.from_object(__name__)
def root_dir(): # pragma: no cover
return os.path.abspath(os.path.dirname(__file__))
def get_file(filename): # pragma: no cover
try:
src = os.path.join(root_dir(), filename)
# Figure out how flask returns static files
# Tried:
# - render_template
# - send_file
# This should not be so non-obvious
return open(src).read()
except IOError as exc:
return str(exc)
@app.route('/', methods=['GET'])
def metrics(): # pragma: no cover
content = get_file('jenkins_analytics.html')
return Response(content, mimetype="text/html")
@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def get_resource(path): # pragma: no cover
mimetypes = {
".css": "text/css",
".html": "text/html",
".js": "application/javascript",
}
complete_path = os.path.join(root_dir(), path)
ext = os.path.splitext(path)[1]
mimetype = mimetypes.get(ext, "text/html")
content = get_file(complete_path)
return Response(content, mimetype=mimetype)
if __name__ == '__main__': # pragma: no cover
app.run(port=80)
Someone want to give a code sample or url for this? I know this is going to be dead simple.
The preferred method is to use nginx or another web server to serve static files; they'll be able to do it more efficiently than Flask.
However, you can use send_from_directory
to send files from a directory, which can be pretty convenient in some situations:
from flask import Flask, request, send_from_directory
# set the project root directory as the static folder, you can set others.
app = Flask(__name__, static_url_path='')
@app.route('/js/<path:path>')
def send_js(path):
return send_from_directory('js', path)
if __name__ == "__main__":
app.run()
Do not use send_file
or send_static_file
with an user-supplied path.
send_static_file
example:
from flask import Flask, request
# set the project root directory as the static folder, you can set others.
app = Flask(__name__, static_url_path='')
@app.route('/')
def root():
return app.send_static_file('index.html')
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