当变量存在时，我收到了错误的请求键错误吗？

Question

以下是确切的错误：

BadRequestKeyError werkzeug.exceptions.BadRequestKeyError: 400个坏请求:浏览器(或代理)发送了服务器无法理解的请求。KeyError：“ux”

下面是我正在运行的代码：

@app.route('/calculate_salary', methods=['POST', 'GET'])
def calculate():
        # profession = int(request.form['profession'])
        user_experience = request.form['ux']
        languages = request.form['ul']
        design_tools = request.form['designtoolz']
        dob = request.form['dob']
        fullname = request.form['fn']
        age = request.form['age']
        active_country = request.form['ac']
        current_state = request.form['cs']
        number_of_experience_years = request.form['ey']

        is_developer = False
        is_designer = False

        # if int(profession) == 1:
        #     is_developer = True
        #
        # elif int(profession) == 2:
        #     is_designer = True

        database = {
            "ux": user_experience,
            "languases": languages,
            "Date of Birth": dob,
            "fn": fullname,
            "Active Country": active_country,
            "Curret State": current_state,
            "Number of Education Years": number_of_experience_years,
            "design_tools": request.form.designtoolz
        }

        result_message = cc.calculate_expected_salarys(user_experience, database, number_of_experience_years,
                                                       is_developer, is_designer, languages,
                                                       request.form.designtoolz, dob, age, fullname, active_country, current_state)

        return render_template(result_message)

这是来自许多模块的代码示例，这些代码证明它存在html文档1：

<label>How many years experience do you have?</label><br>

<input name="ux" checked="checked" type="radio" value="1"/> Less than 1 year <br/>

<input name="ux" type="radio" value="2"/> 1-3 years <br/>

<input name="ux" type="radio" value="3"/> 3-8 years<br/>

<input name="ux" type="radio" value="4"/> 8+ years<br/>

<br/>

如果是这样的话，request.form也会引用我的html代码模块吗？ux肯定在那里。

Answer 1

在后端代码中，使用request.form访问表单对象，而在前端页面上没有表单。您需要在前端页面上提供一个实际的表单，并在其中添加您的输入字段。

因此，与其只是：

<input name="ux" checked="checked" type="radio" value="1"/> Less than 1 year <br/>

<input name="ux" type="radio" value="2"/> 1-3 years <br/>

<input name="ux" type="radio" value="3"/> 3-8 years<br/>

<input name="ux" type="radio" value="4"/> 8+ years<br/>

你想要做的是：

<form method='post' action="{{ url_for('calculate') }}">
   <input name="ux" checked="checked" type="radio" value="1"/> Less than 1 year <br/>

   <input name="ux" type="radio" value="2"/> 1-3 years <br/>

   <input name="ux" type="radio" value="3"/> 3-8 years<br/>

   <input name="ux" type="radio" value="4"/> 8+ years<br/>
   
   <input type='submit'> Submit 
</form>