Question

我有一个样品瓶应用程序，我使用各种来源的WTForms开发。我的主要目的是首先查看所有选项是否正常工作，以便我开发应用程序，以便再次显示所选选项。

该应用程序是公开可用的here。但是，该应用程序无法正常工作。任何人都可以帮我解决这个问题吗？这是我的routes.py文件，如下所示：

cat

我的html文件如下：

# Import the actual Flask app
from app import app

from flask import render_template, redirect, jsonify, request, url_for
import sys
import os

from forms import PlagSelection


@app.route('/')# methods=['GET', 'POST'])
def select_doc():
    form = PlagSelection()

    # If file has been selected, perform detection and display results
    if form.validate_on_submit():
        kwargs = {
            form.features.name : form.features.data,
            form.cluster_method.name : form.cluster_method.data,
            form.atom.name : form.atom.data,
            form.similarity_measure.name : form.similarity_measure.data,
            form.k.name : form.k.data
        }
        print kwargs
        return redirect(url_for('view_doc', **kwargs))
    elif len(form.errors) > 0:
        # TODO Make a nice error msg
        return str(form.errors)
    else:
        # Otherwise display options
        return render_template('select_doc.html',
                    form = form)

@app.route('/view_doc/',methods=['GET'])
def view_doc():
    atom_type = request.args.get('atom')
    features = request.args.getlist('features')
    cluster_method = request.args.get('cluster_method')
    similarity_measure = request.args.get('similarity_measure')
    k = int(request.args.get('k'))

    return render_template('view_doc.html',
        cluster_method = cluster_method,
        k = k,
        features = features,
        atom_type = atom_type,
        similarity_measure = similarity_measure
    )

if __name__ == '__main__':
    port = int(os.environ.get('PORT', 5000))
    app.run(debug = True, port=port)

我收到以下错误：

**编辑**

我按如下方式更改了routs.py：

<html>


{% block content %}

<body>
<div class="container">
    <h1>Pick your plag</h1>
    <div class="jumbotron">
        <dt>
            <form method="POST" action='/view_doc' enctype="multipart/form-data" role="form">

                <div class="form-group">
                    <dd> {{ form.features.label }} </dd>
                    <dd> {{ form.features(class='form-control') }} </dd>

                    <dd> {{ form.atom.label }} </dd>
                    <dd> {{ form.atom(class='form-control') }} </dd>

                    <dd> {{ form.cluster_method.label }} </dd>
                    <dd> {{ form.cluster_method(class='form-control') }} </dd>

                    <dd> {{ form.k.label }} </dd>
                    <dd> {{ form.k(class='form-control') }} </dd>

                    <dd> {{ form.similarity_measure.label }} </dd>
                    <dd> {{ form.similarity_measure(class='form-control') }} </dd>
                </div>

                <div class="form-group">
                    <button type="submit" class="btn btn-default"> Go </button>
                </div>

            </form>
        </dt>
    </div>
</div>
</body>
{% endblock content %}

</html>

我得到如下错误：

# Import the actual Flask app
from app import app

from flask import render_template, redirect, jsonify, request, url_for, session
import sys
import os

from forms import PlagSelection


@app.route('/')# methods=['GET', 'POST'])
def select_doc():
    form = PlagSelection()

    # If file has been selected, perform detection and display results
    if form.validate_on_submit():
        session['form_data']= {
            form.features.name : form.features.data,
            form.cluster_method.name : form.cluster_method.data,
            form.atom.name : form.atom.data,
            form.similarity_measure.name : form.similarity_measure.data,
            form.k.name : form.k.data
        }
        return redirect(url_for('view_doc'))
    elif len(form.errors) > 0:
        # TODO Make a nice error msg
        return str(form.errors)
    else:
        # Otherwise display options
        return render_template('select_doc.html',
                    form = form)

@app.route('/view_doc',methods=['POST'])
def view_doc():
    atom_type = session.get('atom')
    features = session.get('features')
    cluster_method = session.get('cluster_method')
    similarity_measure = session.get('similarity_measure')
    k = int(session.get('k'))

    return render_template('view_doc.html',
        cluster_method = cluster_method,
        k = k,
        features = features,
        atom_type = atom_type,
        similarity_measure = similarity_measure
    )

if __name__ == '__main__':
    port = int(os.environ.get('PORT', 5000))
    app.run(debug = True, port=port)

Answer 1

仍然不是一个MCVE，但我注意到两件事。

尝试将'/view_doc/'更改为'/view_doc'。除非您有特殊原因使用尾部斜杠。

另一件事是return redirect(url_for('view_doc', **kwargs))。我认为这就是＆POST;请求＆＃39;部分错误来自。基于错误，似乎以这种方式传递数据是不安全的。

尝试使用session来保留表单数据并删除**kwargs的使用。

session['my_form_data'] = {
        form.features.name : form.features.data,
        form.cluster_method.name : form.cluster_method.data,
        form.atom.name : form.atom.data,
        form.similarity_measure.name : form.similarity_measure.data,
        form.k.name : form.k.data
    }

return redirect(url_for('view_doc'))

在'/view_doc'中，您可以访问表单数据session.get('atom')等

不显示表格Flask中的选定值

1 个答案: