如何使用Flask从Python中获取表单中的数据


How to get data from a form in Python using Flask

本问题已经有最佳答案，请猛点这里访问。

这是我的runn.py代码：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
@app.route('/', methods=['GET', 'POST'])
def index():
    with app.open_resource('static/docs/student1.txt') as f1:
       content1 = f1.read()
    with app.open_resource('static/docs/student2.txt') as f2:
       content2 = f2.read()
    with app.open_resource('static/docs/student3.txt') as f3:
       content3 = f3.read()
    with app.open_resource('static/docs/student4.txt') as f4:
       content4 = f4.read()

    contents = [content1, content2, content3, content4]
    students = ['Student1','Student2','Student3','Student4']

    selected_student = requests.GET['student_form']  
    if (selected_student == 'Student2'):
      content_selected = content2
    elif (selected_student == 'Student3'):
      content_selected = content3
    elif (selected_student == 'Student4'):
      content_selected = content4
    else:
      content_selected = content1
    return render_template('index.html', students = students, content_selected=content_selected)

这是我的HTML代码：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
<form action="runn" name='frm' method='POST'>    
  Which Student
  <select name="student_form" method="GET" action="/">
    <option value="{{students[0]}}" selected>{{students[0]}}</option>
    {% for student in students[1:] %}
    <option value="{{student}}">{{student}}</option>
  {% endfor %}
  </select>

  <input type='submit' value='submit'>
</form>


  [cc lang="python"] {{ content_selected }}

号

1
2
3
4
5
<P>我无法在视图中显示表单数据。错误是：</P><blockquote>
  <p>
AttributeError: 'module' object has no attribute 'GET'
</p>
</blockquote>号<hr><P>你能试试这个吗？</P>[cc lang="python"]selected_student = request.form.get('student_form')
相关讨论

烧瓶的requestAPI不是requests。改为request.forms.get('student_form')。

请参阅下面的示例，了解如何编写视图函数…

查看功能

1
2
3
4
5
6
7
8
9
@app.route('/', methods=['GET', 'POST'])
def index():
    if request.method == 'POST':
        student = request.forms.get('student')
        print(student)
        with app.open_resource('static/docs/{}.txt'.format(student)) as fi:
            content = fi.read()
        return render_template('base.html', content=content)
    return render_template('base.html')

HTML

1
2
3
4
5
6
7
8
9
<form method="POST" action=".">
    <select name="student">
        <option value="student1">One</option>
        <option value="student2">Two</option>
    </select>
    <input type="submit" name="submit" value="Submit">
</form>

{{ content }}

号

  • 检查他的python代码片段。
  • 谢谢@raja simon@pissal，这很管用。但也有一些错误。当我单击提交按钮时，
    1
    2
    3
    4
    5
    6
    7
     {{ content_selected }}<&#47;pre>         <&#47;div></wyn>不起作用。</li><li>对不起的。。。<wyn>selected_student = request.args.get('student_form')</wyn>是个工程。</li><li>@苏莱曼杜兹根不，那不对。我还有一个问题，为什么在你的选择领域，你有行动和方法？</li><li>@RajaSimon，首先我没有使用表单，所以我在选择的部分添加了get和action，然后我创建了一个表单，我忘记了删除它们。</li><li>@Raja如果我使用<wyn>selected_student = request.forms.get('student_form')</wyn>，就会出现这样的错误：<wyn>AttributeError: 'Request' object has no attribute 'forms'</wyn></li><li>你又犯了错误。是<wyn>form</wyn>，不是<wyn>forms</wyn>。做这件事</li></ul>[/collapse]</div><p><center>[wp_ad_camp_1]</center></p><hr><P>我想你可以使用<wyn>request</wyn>模块。</P>[cc lang="python"]@api.route('/resource', methods=['GET', 'POST'])

    def ticket(*args, **kwargs):
      if(request.method == 'POST'):
        return ResourceController.create(request)
      elif(request.method == 'GET'):
        return ResourceController.index()

    。

    在控制器内部

    1
    2
    3
    4
    def create(request):
        resource_type = request.form['resource_type']
        ...
        ...