尝试在python中运行flask应用程序时出现错误404

Question

attached is the picture of how my directories are up i am trying to run my app with flask, and I am referencing the proper directories, yet I keep getting an error 404 message.附件是我的目录如何启动的图片，我正在尝试使用 Flask 运行我的应用程序，并且我正在引用正确的目录，但我一直收到错误 404 消息。 I do not know what I am doing wrong.我不知道我做错了什么。

Here is my the code to run the app in the app.py section:这是我在 app.py 部分运行应用程序的代码：

    @app.route('/')
    def math():
        #return(y)
        return render_template('index2.html', variable = y)

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

and here is my html code这是我的 html 代码

<!DOCTYPE html>
<html lang="en">

<head>

  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <meta name="description" content="">
  <meta name="author" content="">

  <title>Scrolling Nav - Start Bootstrap Template</title>

  <!-- Bootstrap core CSS -->
  <link href="/static2/static2/vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet">

  <!-- Custom styles for this template -->
  <link href="/static2/static2/css/scrolling-nav.css" rel="stylesheet">


  <!-- Bootstrap core JavaScript -->
  <script src="/static2/static2/vendor/jquery/jquery.min.js"></script>
  <script src="/static2/static2/vendor/bootstrap/js/bootstrap.bundle.min.js"></script>

  <!-- Plugin JavaScript -->
  <script src="/static2/static2/vendor/jquery-easing/jquery.easing.min.js"></script>

  <!-- Custom JavaScript for this theme -->
  <script src="/static2/static2/js/scrolling-nav.js"></script>

</body>

</html>

the scrolling -nav.js is in the correct folder for sure.滚动 -nav.js 肯定在正确的文件夹中。

Please let me know if there is more information needed for this question.如果这个问题需要更多信息，请告诉我。

Answer 1

For references to static files in Flask it's considered best practice to use the url_for function eg对于 Flask 中静态文件的引用，使用url_for函数被认为是最佳实践，例如

<script src="{{url_for('static', filename='js/scrolling-nav.js')}}"></script>

Other than that, if that is your full HTML then it's just a javascript file, do you have the basic HTML stuff in there as well?除此之外，如果那是您的完整 HTML，那么它只是一个 javascript 文件，您是否也有基本的 HTML 内容？ eg例如

<!DOCTYPE html>
<html lang="en">
    <head>
    </head>
    <body>
    Content
    </body>
<html>

Is index2.html stored in a templates folder? index2.html是否存储在模板文件夹中？

Answer 2

I got it.我知道了。 My directories name was static2.我的目录名称是 static2。 The directories name must be "static" for the css and js files to be pulled.对于要拉取的 css 和 js 文件，目录名称必须为“静态”。

尝试在python中运行flask应用程序时出现错误404

问题描述

2 个解决方案

解决方案1
0 2020-03-16 15:26:32

解决方案2
0 2020-03-17 01:13:48

尝试在python中运行flask应用程序时出现错误404

问题描述

2 个解决方案

解决方案1 0 2020-03-16 15:26:32

解决方案2 0 2020-03-17 01:13:48

解决方案1
0 2020-03-16 15:26:32

解决方案2
0 2020-03-17 01:13:48