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javascript - 如何在flask上的同一页面中显示多个html？

转载 作者：行者123 更新时间：2023-12-03 02:31:00 25 4
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我正在尝试创建一个应用程序，我可以单击一列中显示的页面中的链接/按钮，并在另一列中显示 html，而无需重新加载页面。我还尝试以一种可以拥有多个链接/按钮的方式来做到这一点，如果我单击不同的链接，它会更改显示。

到目前为止，我是通过在plot html上重绘整个页面来做到这一点的，但是速度很慢。我的 View html 看起来像这样

<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<!--// JQuery Reference, If you have added jQuery reference in your master page then ignore, 
// else include this too with the below reference
-->

<script src="https://cdn.datatables.net/1.10.4/js/jquery.dataTables.min.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.4/css/jquery.dataTables.min.css">
<link href="static/style.css">

<script type="text/javascript">
    $(document).ready(function () {
        $('#table_id').dataTable();
    });
</script>



</head>
<body>

  <div class="column" style="background-color:#aaa;">

    <table id="table_id" 

    class="">
    <thead>
      <tr>
        <th>Firstname</th>
        <th>Lastname</th> 
        <th>Age</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td> <a href="javascript:plot1('par1', 'par2', 'par3');">Jill </a></td>
        <td>Smith</td> 
        <td>50</td>
      </tr>
      <tr>
        <td><a href="javascript:plot2('par1', 'par2', 'par3');">Eve </a</td>
        <td>Jackson</td> 
        <td>94</td>
      </tr>
    </tbody>
    </table>

    <script type="text/javascript">
        $(document).ready(function () {
        $('#table_id').dataTable();
        });
    </script>

  </div>
  <div class="column2" style="background-color:#bbb;" id="targetColumn1">
    <script>
    function plot1(par1, par2, par3) {
        var arr = ['/plot1?par1=', par1, '&par2=', par2, '&par3=',  par3];
        var urlcpar = arr.join('');
        $.ajax({
          type: "GET",
          url: urlcpar,
          success: function(response) {
               $("#targetColumn1").html(response);
          },
         });
    }
    </script>


  </div>
  <div class="column3" style="background-color:#bbb;" id="targetColumn2" >
    <script>
    function plot2(par1, par2, par3) {
        var arr = ['/plot2?par1=', par1, '&par2=', par2, '&par3=',  par3];
        var urlcpar = arr.join('');
        $.ajax({
          type: "GET",
          url: urlcpar,
          success: function(response) {
               $("#targetColumn2").html(response);
          },
          error: function(xhr) {
              //Do Something to handle error
          }
         });
    }
    </script>



  </div>

</body>
</html>

我的 CSS 看起来像

<style>
* {
    box-sizing: border-box;
}

body {
    margin: 0;
}
.column {
    float: left;
    width: 100.0%;
    padding: 10px;
    height: 50.0%; /* Should be removed. Only for demonstration */
}


/* Create three equal columns that floats next to each other */
.column2 {
    float: left;
    width: 50.0%;
    padding: 10px;
    height: 50.0%; /* Should be removed. Only for demonstration */
}

/* Create three equal columns that floats next to each other */
.column3 {
    float: right;
    width: 50.0%;
    padding: 10px;
    height: 50.0%; /* Should be removed. Only for demonstration */
}



/* Clear floats after the columns */
.row:after {
    content: "";
    display: table;
    clear: both;
}

/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media (max-width: 600px) {
    .column {
        width: 100%;
    }
}
</style>

我的情节 html 1 看起来像 

{{ html|safe }}

我的情节 html 2 看起来像

{{ plot|safe }}

我的应用程序是这样的，我有两个想要在同一页面中显示的 html

from flask import * 
import os
import matplotlib.pyplot as plt
import numpy as np

app = Flask(__name__)

app.config['SECRET_KEY'] = 'secret!'
app.config['DEBUG'] = True

# IF CHANGE THE ROUTE HERE FOR '/<eventid>' works 
@app.route('/view/<eventid>')
def page_view(eventid):
    global event
    event = eventid
    print(event)
    return render_template('view.html')

@app.route("/plot1")
def plot1():
    par1 = str(request.args.get('par1'))
    par2 = str(request.args.get('par2'))
    par3 = str(request.args.get('par3'))

    fname = './static/'+event
    if not os.path.exists(fname):
        os.mkdir(fname)

    f = open(fname+'/example.html', 'w+')
    f.write('<HTML><p> \
            <body>' \
          +par1+par2+par3+'</p> \
          <img src="./plot/test.png"> \
          </body> </HTML>')
    f.close() 

    #fl = fname+'/example.html'
    #fl = 'http://visjs.org/examples/network/nodeStyles/images.html' 
    fl = fname+'/Network _ Images.html'
    return render_template('plot1.html', html='<object width="100%" height="100%" data=\"'+fl+'\"></object>')


@app.route("/plot2")
def plot2():
    par1 = str(request.args.get('par1'))
    par2 = str(request.args.get('par2'))
    par3 = str(request.args.get('par3'))

    fname = './static/'+event
    if not os.path.exists(fname):
        os.mkdir(fname)

    fname = fname+'/plot/' 
    if not os.path.exists(fname):
        os.mkdir(fname)

    t = np.arange(0.0, 2.0, 0.01)
    s = np.sin(2*np.pi*t)
    plt.plot(t, s)

    plt.xlabel('time (s)')
    plt.ylabel('voltage (mV)')
    plt.title('About as simple as it gets, folks')
    plt.grid(True)
    plt.savefig(fname+"/test.png")

    fl = fname+'/test.png'
    return render_template('plot2.html', plot='<img src=\"'+fl+'\">')


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

任何帮助将不胜感激。

最佳答案

您可以使用 AJAX 从服务器获取内容并在第二列中显示该内容。以下是说明此概念的示例应用程序:

app.py

from flask import Flask, render_template

app = Flask(__name__)

app.config['SECRET_KEY'] = 'secret!'
app.config['DEBUG'] = True


@app.route('/')
def page_view():
    return render_template('view.html')


@app.route('/plot')
def plot():
    return render_template('plot.html')


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

templates/view.html

<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<script>

 $(document).ready(function() {

     $("a.loadPlot").click(function() {

         args = $(this).data('args');

         $.ajax({
             type: "GET",
             data: args,
             url: "{{ url_for('plot') }}",
             success: function(data) {
                 $('#targetColumn').html(data)
             }
       });

     });

 });

</script>


<style>
.column {
    float: left;
    width: 33.33%;
    padding: 10px;
    height: 300px; /* Should be removed. Only for demonstration */
}
</style>
</head>
<body>

  <div class="column" style="background-color:#aaa;">
      <a href="#" class="loadPlot" data-args='{"par1": 1, "par2": 4, "par3": 10}'>Plot 1</a><br />
      <a href="#" class="loadPlot" data-args='{"par1": 5, "par2": 3, "par3": 5}'>Plot 2</a><br />
      <a href="#" class="loadPlot" data-args='{"par1": 10, "par2": 9, "par3": 1}'>Plot 3</a><br />
  </div>
  <div class="column" style="background-color:#bbb;" id="targetColumn">

  </div>

</body>
</html>

templates/plot.html

Plot with args: <br /><br/ >

<ul>
    {% for a in request.args %}
        <li>{{ a }} - {{ request.args[a] }}</li>
    {% endfor %}
</ul>

关于javascript - 如何在flask上的同一页面中显示多个html？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48737856/

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