如何在Flask中提供静态文件

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)

有人愿意给出一个代码示例或url吗?我知道这非常简单。

当前回答

静态文件的URL可以使用静态端点创建，如下所示:

url_for('static', filename = 'name_of_file')
<link rel="stylesheet" href="{{url_for('static', filename='borders.css')}}" />

2020-07-21 10:39:17

其他回答

使用重定向和url_for

from flask import redirect, url_for

@app.route('/', methods=['GET'])
def metrics():
    return redirect(url_for('static', filename='jenkins_analytics.html'))

这个服务器在你的html中引用的所有文件(css & js…)

2015-12-28 22:21:59

这对我来说很管用:

import os
from flask import Flask, render_template, send_from_directory
app = Flask(__name__)


root = os.path.join(os.path.dirname(os.path.abspath(__file__)), "whereyourfilesare")

@app.route('/', methods=['GET'])
def main(request):
    path = request.path
    if (path == '/'):
        return send_from_directory(root, 'index.html')
    else:
        return send_from_directory(root, path[1:])

2021-09-26 04:45:47

默认文件夹名为“static”，包含所有静态文件下面是一个代码示例:

<link href="{{ url_for('static', filename='vendor/bootstrap/css/bootstrap.min.css') }}" rel="stylesheet">

2020-08-21 15:54:32

基于其他答案的一个最简单的工作示例如下:

from flask import Flask, request
app = Flask(__name__, static_url_path='')

@app.route('/index/')
def root():
    return app.send_static_file('index.html')

if __name__ == '__main__':
  app.run(debug=True)

使用名为index.html的HTML:

<!DOCTYPE html>
<html>
<head>
    <title>Hello World!</title>
</head>
<body>
    <div>
         <p>
            This is a test.
         </p>
    </div>
</body>
</html>

重要提示:index.html在一个名为static的文件夹中，这意味着<projectpath>有.py文件，<projectpath>\static有html文件。

如果你想让服务器在网络上可见，使用app.run(debug=True, host='0.0.0.0')

EDIT:如果需要显示文件夹中的所有文件，请使用此选项

@app.route('/<path:path>')
def static_file(path):
    return app.send_static_file(path)

这基本上就是黑曼巴的答案，所以给他们点赞。

2014-08-26 08:56:59

在我的情况下，我需要一个静态文件夹中的所有文件都可以由用户访问，以及我需要为我的一些html文件使用模板，这样公共html代码可以放在模板中，代码得到重用。以下是我如何同时实现这两个目标的:

from flask import Flask, request, render_template
from flask.json import JSONEncoder

app = Flask(__name__, template_folder='static')


@app.route('/<path:path>')
def serve_static_file(path):
    # In my case, only html files are having the template code inside them, like include.
    if path.endswith('.html'):
        return render_template(path)
    # Serve all other files from the static folder directly.
    return app.send_static_file(path)

我所有的文件都保存在静态文件夹下，与主flask文件平行。

2021-08-29 14:43:10

如何在Flask中提供静态文件

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