Flask：如何提供静态html？

问题描述

我试图服务一个静态html文件，但返回500错误
（editor.html的副本是在.py和模板目录）
这是我所有的尝试过： app =烧瓶（__ name__，static_url_path ='/模板'）
@app。

  b 
 $ b 
一些进一步的注意事项：
 
 $ ul $ b $ li  static_url_path 更改 URL 静态文件可用，而不是用于从中加载数据的文件系统上的位置。 
 
  render_template / code>假定你的文件是一个Jinja2模板;如果它真的只是一个静态文件，那么这是过度杀毒，如果该文件中存在错误或缺少上下文的实际可执行语法，则 可能导致错误。
 
  
I am trying to serve a static html file, but returns a 500 error
(a copy of editor.html is on .py and templates directory)
This is all I have tried:
from flask import Flask
app = Flask(__name__, static_url_path='/templates')
@app.route('/')
def hello_world():
    #return 'Hello World1!' #this works correctly!
    #return render_template('editor.html')
    #return render_template('/editor.html')
    #return render_template(url_for('templates', filename='editor.html'))
    #return app.send_static_file('editor.html') #404 error (Not Found)
    return send_from_directory('templates', 'editor.html')
This is the response:
Title: 500 Internal Server Srror

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.
 解决方案 
Reducing this to the simplest method that'll work:
Put static assets into your static subfolder.
Leave Flask set to the default, don't give it a static_url_path either.
Access static content over the pre-configured /static/ to verify the file works
If you then still want to reuse a static file, use current_app.send_static_file(), and do not use leading / slashes:
from flask import Flask, current_app
app = Flask(__name__)

@app.route('/')
def hello_world():
    return current_app.send_static_file('editor.html')
This looks for the file editor.html directly inside the static folder.
This presumes that you saved the above file in a folder that has a static subfolder with a file editor.html inside that subfolder.
Some further notes:
static_url_path changes the URL static files are available at, not the location on the filesystem used to load the data from.
render_template() assumes your file is a Jinja2 template; if it is really just a static file then that is overkill and can lead to errors if there is actual executable syntax in that file that has errors or is missing context.
                        
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