python - flask+ajax post 400错误

问题描述

表单代码

<form role='form' action='/tpush/pl' method='post'><p class='input-field col s4'> <input name='cname' type='text' class='validate'> <label for='cname'>Username</label></p><p class='input-field col s4'> <input name='cemail' type='text' class='validate'> <label for='cemail'>Email</label></p><p class='input-field col s4'> <input name='curl' type='text' class='validate'> <label for='curl'>URL</label></p><i class='material-icons prefix'>mode_edit</i><label for='comment-textarea'>评论</label><textarea name='comment'></textarea><p style='z-index: 100'></p><button type='reset'>取消</button><button type='submit'>确认保存</button> </form> <p id='res'></p>

ajax代码：

<script type='text/javascript'> $(function(){ $(’.btn’).click(function(){ var $cname = $(’input[name='cname']’).val(); var $cemail = $(’input[name='cemail']’).val(); var $curl = $(’input[name='curl']’).val(); var $text = $(’textarea[name='comment']’).val(); var $res = $(’#res’); $.ajax({ url:’/tpush/pl’, data: $(’form’).serialize(), type: ’POST’, dataType:’json’ }).done(function (data) { if (!data.r){ $res.html(data.rs); }else{ $res.html(data.error); } }); }); });</script>

python代码

@web.route(’/tpush/pl’,methods=[’POST’])def web_tpush(): cname = request.form[’cname’] cemail = request.form[’email’] curl = request.form[’curl’] #ctext = request.form[’ctext’] print(cname,cemail,curl) error = None if len(cname) < 2:error = ’666’ if len(cemail) < 5:error = ’777’ if error is not None:return jsonify({’r’:1,’error’:error}) return jsonify({’r’:0,’rs’:ok})

我点击提交后跳转到/tpush/pl 提示：

4000 Bad RequestThe browser (or proxy) sent a request that this server could not understand.127.0.0.1 - - [13/May/2017 19:57:42] 'POST /tpush/pl HTTP/1.1' 400 -127.0.0.1 - - [13/May/2017 19:57:42] 'POST /tpush/pl HTTP/1.1' 400 -

问题解答

cemail = request.form[’email’]

改为

cemail = request.form[’cemail’]

另外，你的form里有默认post 提交。如果想要自己处理的话，就不要在form里外加action 了。

$(’.btn’).click(function(event){ event.preventDefault();});