flask搭建微電影平台

A. 怎麼使用python flask搭建靜態伺服器

Frozen-Flask freezes aFlaskapplication into a set of static files. The result can be hosted without any server-side software other than a traditional web server.

Note:This project used to be called Flask-Static.

Installation

Install the extension with one of the following commands:

$ easy_install Frozen-Flask

or alternatively if you have pip installed:

$ pip install Frozen-Flask

or you can get thesource code from github.

Context

This documentation assumes that you already have a workingFlaskapplication. You can run it and test it with the development server:

from myapplication import appapp.run(debug=True)

Frozen-Flask is only about deployment: instead of installing Python, a WGSI server and Flask on your server, you can use Frozen-Flask tofreezeyour application and only have static HTML files on your server.

Getting started

Create aFreezerinstance with yourappobject and call itsfreeze()method. Put that in afreeze.pyscript (or call it whatever you like):

from flask_frozen import Freezerfrom myapplication import appfreezer = Freezer(app)if __name__ == '__main__':
freezer.freeze()

This will create abuilddirectory next to your application』, with your application』s content frozen into static files.

Note

Frozen-Flask considers it 「owns」 its build directory. By default, it willsilently overwritefiles in that directory, andremovethose it did not create.

Theconfigurationallows you to change the destination directory, or control what files are removed if at all.

This build will most likely be partial since Frozen-Flask can only guess so much about your application.

Finding URLs

Frozen-Flask works by simulating requests at the WSGI level and writing the responses to aptly named files. So it needs to find out which URLs exist in your application.

The following URLs can be found automatically:

• Static files handled by Flask for your application or any of itsblueprints.

• Views with no variable parts in the URL, if they accept theGETmethod.

• New in version 0.6:Results of calls toflask.url_for()made by your application in the request for another URL. In other words, if you useurl_for()to create links in your application, these links will be 「followed」.

This means that if your application has an index page at the URL/(without parameters) and every other page can be found from there by recursively following links built withurl_for(), then Frozen-Flask can discover all URLs automatically and you』re done.

Otherwise, you may need to write URL generators.

URL generators

Let』s say that your application looks like this:

• @app.route('/')def procts_list():


• return render_template('index.html', procts=models.Proct.all())@app.route('/proct_<int:proct_id>/')def proct_details():


• proct = models.Proct.get_or_404(id=proct_id)


• return render_template('proct.html', proct=proct)



If, for some reason, some procts pages are not linked from another page (or these links are not built byurl_for()), Frozen-Flask will not find them.

To tell Frozen-Flask about them, write an URL generator and put it after creating yourFreezerinstance and before callingfreeze():

• @freezer.register_generatordef proct_details():


• for proct in models.Proct.all():


• yield {'proct_id': proct.id}



Frozen-Flask will find the URL by callingurl_for(endpoint,**values)whereendpointis the name of the generator function andvaluesis each dict yielded by the function.

You can specify a different endpoint by yielding a(endpoint,values)tuple instead of justvalues, or you can by-passurl_forand simply yield URLs as strings.

Also, generator functions do not have to bePython generatorsusingyield, they can be any callable and return any iterable object.

All of these are thus equivalent:

• @freezer.register_generatordef proct_details(): # endpoint defaults to the function name


• # `values` dicts


• yield {'proct_id': '1'}


• yield {'proct_id': '2'}@freezer.register_generatordef proct_url_generator(): # Some other function name


• # `(endpoint, values)` tuples


• yield 'proct_details', {'proct_id': '1'}


• yield 'proct_details', {'proct_id': '2'}@freezer.register_generatordef proct_url_generator():


• # URLs as strings


• yield '/proct_1/'


• yield '/proct_2/'@freezer.register_generatordef proct_url_generator():


• # Return a list. (Any iterable type will do.)


• return [


• '/proct_1/',


• # Mixing forms works too.


• ('proct_details', {'proct_id': '2'}),


• ]



Generating the same URL more than once is okay, Frozen-Flask will build it only once. Having different functions with the same name is generally a bad practice, but still work here as they are only used by their decorators. In practice you will probably have a mole for your views and another one for the freezer and URL generators, so having the same name is not a problem.

Testing URL generators

The idea behind Frozen-Flask is that you canuse Flask directlyto develop and test your application. However, it is also useful to test yourURL generatorsand see that nothing is missing, before deploying to a proction server.

You can open the newly generated static HTML files in a web browser, but links probably won』t work. TheFREEZER_RELATIVE_URLSconfigurationcan fix this, but adds a visibleindex.htmlto the links. Alternatively, use therun()method to start an HTTP server on the build result, so you can check that everything is fine before uploading:

• if __name__ == '__main__':


• freezer.run(debug=True)



Freezer.run()will freeze your application before serving and when the reloader kicks in. But the reloader only watches Python files, not templates or static files. Because of that, you probably want to useFreezer.run()only for testing the URL generators. For everything else use the usualapp.run().

Flask-Scriptmay come in handy here.

Controlling What Is Followed

Frozen-Flask follows links automatically or with some help from URL generators. If you want to control what gets followed, then URL generators should be used with the Freezer』swith_no_argument_rulesandlog_url_forflags. Disabling these flags will force Frozen-Flask to use URL generators only. The combination of these three elements determines how much Frozen-Flask will follow.

Configuration

Frozen-Flask can be configured using Flask』sconfiguration system. The following configuration values are accepted:

• FREEZER_BASE_URL

• Full URL your application is supposed to be installed at. This affects the output offlask.url_for()for absolute URLs (with_external=True) or if your application is not at the root of its domain name. Defaults to'http://localhost/'.

• FREEZER_RELATIVE_URLS

• If set toTrue, Frozen-Flask will patch the Jinja environment so thaturl_for()returns relative URLs. Defaults toFalse. Python code is not affected unless you userelative_url_for()explicitly. This enables the frozen site to be browsed without a web server (opening the files directly in a browser) but appends a visibleindex.htmlto URLs that would otherwise end with/.

  New in version 0.10.

• FREEZER_DEFAULT_MIMETYPE

• The MIME type that is assumed when it can not be determined from the filename extension. If you』re using the Apache web server, this should match theDefaultTypevalue of Apache』s configuration. Defaults toapplication/octet-stream.

  New in version 0.7.

• FREEZER_IGNORE_MIMETYPE_WARNINGS

• If set toTrue, Frozen-Flask won』t show warnings if the MIME type returned from the server doesn』t match the MIME type derived from the filename extension. Defaults toFalse.

  New in version 0.8.

• FREEZER_DESTINATION

• Path to the directory where to put the generated static site. If relative, interpreted as relative to the application root, next to . Defaults tobuild.

• FREEZER_REMOVE_EXTRA_FILES

• If set toTrue(the default), Frozen-Flask will remove files in the destination directory that were not built ring the current freeze. This is intended to clean up files generated by a previous call toFreezer.freeze()that are no longer needed. Setting this toFalseis equivalent to settingFREEZER_DESTINATION_IGNOREto['*'].

  New in version 0.5.

• FREEZER_DESTINATION_IGNORE

• A list (defaults empty) offnmatchpatterns. Files or directories in the destination that match any of the patterns are not removed, even ifFREEZER_REMOVE_EXTRA_FILESis true. As in.gitignorefiles, patterns apply to the whole path if they contain a slash/, to each slash-separated part otherwise. For example, this could be set to['.git

B. 如何在pycharm 中搭建 flask 環境

1、使用virtualenvwrapper或者virtualenv的話，則更換虛擬環境的時候需要設置一下
2、具體方法是File--->Settings，然後選擇Project Interpreter，下拉框選擇對應的路徑即可。若系統中有多個版本的Python也是用這種方法「配置」的。

C. flask搭建網站，網頁怎麼載入非static文件夾下的圖片

https://blog.csdn.net/xiemanr/article/details/53009639

D. 關於運行flask框架搭建的網站出現了「Debugger pin code: 215-511-978「，求解！！！謝謝！！！

這不是bug,當你啟動調試後,在網頁上如果遇到異常,你可以在異常頁面右側點擊黑色方塊的"控制台"圖標,進入Python提示符下以調試,但為安全起見,要你輸入上圖提供的pin碼(只有你知道),不然任何訪問網頁的人都可以調試了~

E. python 請問有人有flask框架的視頻教程嗎flask的相關教程太少了。有很多問題都

沒視頻 但是有教程
http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world

F. 如何使用阿里雲搭建flask 網站

靜態伺服器直接使用Nginx就行了。
flask主要是寫動態的，也就是有交互，有資料庫存儲的這種。

G. flask框架有什麼用

Flask是一個使用 Python 編寫的輕量級 Web 應用框架。其 WSGI 工具箱採用 Werkzeug ，模板引擎則使用 Jinja2 。
Flask使用 BSD 授權。Flask也被稱為 「microframework」 ，因為它使用簡單的核心，用 extension 增加其他功能。Flask沒有默認使用的資料庫、窗體驗證工具。
web網站發展至今，特別是伺服器端，涉及到的知識、內容，非常廣泛，這對程序員的要求會越來越高的。如果採用成熟，穩健的框架，那麼一些基礎的工作，比如說安全性，數據流控制等都可以讓框架來處理，那麼程序開發人員就可以將精力放在具體的業務邏輯上面。
使用框架的優勢：穩定性、可擴展性強，可以降低開發效率，提高開發效率。
而Flask框架是Python的web框架，最大特徵就是輕便，讓開發者自由靈活的兼容開發的feature。Python語言靈活性給予了Flask框架同樣的特徵，無論用戶畫像還是產品推薦，Python對比其他語言都有很大的優勢。
另外Flask框架輕便，容易上手，試錯成本低，搭建網站的時候，Flask框架是最好的選擇。

H. 【Python基礎】flask框架是用來干什麼的

你可以用來開發網站伺服器，它包含一個wsgi工具包（werkzeug）、 模板引擎（jinja2）還有主體（flask）。

安裝方式:

1. 打開命令行
2. 輸入命令
3. 命令是"pip install flask"

I. 有哪些python+flask的搭建的博客或論壇開源推薦

如果你是剛開始學習的話想找一些開源的系統，以下是一些推薦。
以下較為簡單的項目
1、GitHub - koon-kai/kiblog: It 's a blog power by flask.
2、GitHub - proudlygeek/proudlygeek-blog: A simple blog powered by flask
3、GitHub - kkris/refer: a simple blog powered by flask and mongodb
4、GitHub - carpedm20/personal-blog-powered-by-flask: website powered by flask
5、GitHub - rfyiamcool/markdown-blog: 使用python的flask框架結合markdown寫了一個博客程序
6、zhangdapeng89/flask_blog
如果你覺得以上較為簡單，你可以接著看
1、GitHub - xpleaf/Blog_mini: An Open Source Blog System that developed with Flask.
2、GitHub - huangyemin/pyblog: a blog developed with python
3、deepgully (gully) · GitHub
4、wtx358/wtxlog
5、GitHub - ghostrong/weblog: A simple blog system written in Flask.
6、GitHub - sixu05202004/flaskblog: person blog powered by flask
AND
Powered By Flask

J. 如何理解Flask

Flask 是一種具有平緩學習曲線和龐大社區支持的微框架，利用它可以構建大規模的web應用。是搭建社區平台的神器之一。 利用它可以構建大規模的web應用。學習上手Flask非常輕松，但要深入理解卻並不容易。本書從一個簡單的Flask應用開始，通過解決若干實戰中的問題，對一系列進階的話題進行了探討。書中使用MVC（模型-視圖-控制器）架構對示例應用進行了轉化重構，以演示如何正確地組織應用代碼結構。有了可擴展性強的應用結構之後，接下來的章節使用Flask擴展為應用提供了額外的功能，包括用戶登錄和注冊、NoSQL查詢、REST API、一套後台管理界面，以及其他特性。然後，你會學到如何使用單元測試，保障代碼持續按照正確的方式工作，避免極具風險的猜測式編程。 一個簡單的Flask 項目入手，由淺入深地探討了一系列實戰問題，包括如何使用SQLAlchemy 和Jinja 等工具進行Web 開發；如何正確地設計擴展性強的Flask 應用架構和搭建MVC 環境；對於各種NoSQL 資料庫的特性，何時應該、何時不應該及如何使用它們；通過使用Flask 擴展快速實現用戶的身份系統、RESTful API、NoSQL查詢、後台管理等功能；如何創建自己的擴展；使用Celery 編寫非同步任務，使用pytest 進行單元測試等；最後介紹了如何部署上線，包括使用自己搭建的伺服器或使用各種雲服務，以及如何權衡和選擇這些不同的解決方案。