Flask不接收HTML POST的数据 [英] Flask receiving no data for HTML POST

问题描述

  @ app.route（'/'，methods = ['GET'，'POST']）
 def login（）：
 request.method =='GET'：
如果session中有'USER_TOKEN'：
返回make_response（render_template（'index.html'））
返回make_response（render_template（'login.html'））
 if request.method =='POST'：
 print'data：'，request.form 
 return make_response（render_template（'index.html'））
  
 $  HTML 是 
 
  
 
 $ b 
 < form class =form-horizo​​ntalaction =/method =POST> 
< div class =control-group> 
< label class =control-labelfor =email>电子邮件< / label> 
< div class =controls> 
< input type =textid =emailplaceholder =Email> 
< / div> 
< / div> 
< div class =control-group> 
< label class =control-labelfor =password>密码< / label> 
< div class =controls> 
< input type =passwordid =passwordplaceholder =Password> 
< / div> 
< / div> 
< div class =control-group> 
< div class =controls> 
< button type =submitclass =btn>登入< / button> 
< / div> 
< / div> 
< / form> 
  
当我从HTML页面提交数据时，我看到
 
 
  data：ImmutableMultiDict（[]）
  
数据丢失了？
解决方案
您缺少字段名称（ ImmutableMultiDict  
 
更改
 
 
 <$ p $ < code>< input type =textid =emailplaceholder =Email> 
  

到

 < input name =< whatever_email_name> type =textid =emailplaceholder =Email> 
  

和

 < input type =passwordid =passwordplaceholder =Password> 
  

到

 < input name =< whatever_password_name> type =passwordid =passwordplaceholder =Password> 
  




@app.route('/', methods=['GET', 'POST'])
def login():
    if request.method == 'GET':
        if 'USER_TOKEN' in session:
            return make_response(render_template('index.html'))
        return make_response(render_template('login.html'))
    if request.method == 'POST':
        print 'data :', request.form
        return make_response(render_template('index.html'))

My HTML is

  <form class="form-horizontal" action="/" method="POST">
    <div class="control-group">
      <label class="control-label" for="email">Email</label>
      <div class="controls">
        <input type="text" id="email" placeholder="Email">
      </div>
    </div>
    <div class="control-group">
      <label class="control-label" for="password">Password</label>
      <div class="controls">
        <input type="password" id="password" placeholder="Password">
      </div>
    </div>
    <div class="control-group">
      <div class="controls">
        <button type="submit" class="btn">Sign In</button>
      </div>
    </div>
  </form>

When I submit data from HTML page, I see

data : ImmutableMultiDict([])

Why the data is missing?

解决方案

You are missing field names (which are keys for ImmutableMultiDict, that's why it appears to be empty when form gets submitted).

change

<input type="text" id="email" placeholder="Email">

to

<input name="<whatever_email_name>" type="text" id="email" placeholder="Email">

and

<input type="password" id="password" placeholder="Password">

to

<input name="<whatever_password_name>" type="password" id="password" placeholder="Password">

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