Python 方法不允许烧瓶错误 405
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Method Not Allowed flask error 405
提问by Matteo
I am developing a flask registration form, and I receive an error:
我正在开发一个烧瓶注册表，我收到一个错误：
error 405 method not found.
Code:
代码：
import os
# Flask
from flask import Flask, request, session, g, redirect, url_for, abort, \
render_template, flash, Markup, send_from_directory, escape
from werkzeug import secure_filename
from cultura import app
# My app
from include import User
@app.route('/')
def index():
return render_template('hello.html')
@app.route('/registrazione', methods=['POST'])
def registration():
if request.method == 'POST':
username= request.form.username.data
return render_template('registration.html', username=username)
else :
return render_template('registration.html')
registration.html:
注册.html：
<html>
<head> <title>Form di registrazione </title>
</head>
<body>
{{ username }}
<form id='registration' action='/registrazione' method='post'>
<fieldset >
<legend>Registrazione utente</legend>
<input type='hidden' name='submitted' id='submitted' value='1'/>
<label for='name' >Nome: </label>
<input type='text' name='name' id='name' maxlength="50" /> <br>
<label for='email' >Indirizzo mail:</label>
<input type='text' name='email' id='email' maxlength="50" />
<br>
<label for='username' >UserName*:</label>
<input type='text' name='username' id='username' maxlength="50" />
<br>
<label for='password' >Password*:</label>
<input type='password' name='password' id='password' maxlength="50" />
<br>
<input type='submit' name='Submit' value='Submit' />
</fieldset>
</form>
</body>
</html>
when I visit localhost:5000/registrazione, I receive the error. What am I doing wrong?
当我访问时localhost:5000/registrazione，我收到错误。我究竟做错了什么？
回答by Lukas Graf
This is because you only allow POST requests when defining your route.
这是因为您在定义路由时只允许 POST 请求。
When you visit /registrazionein your browser, it will do a GET request first. Only once you submit the form your browser will do a POST. So for a self-submitting form like yours, you need to handle both.
当您/registrazione在浏览器中访问时，它会首先执行 GET 请求。只有在您提交表单后，您的浏览器才会执行 POST。因此，对于像您这样的自行提交表单，您需要同时处理两者。
Using
使用
@app.route('/registrazione', methods=['GET', 'POST'])
should work.
应该管用。
回答by Eric Leschinski
Example of a flask app using wsgi with JQuery, Ajax and json:
使用 wsgi 和 JQuery、Ajax 和 json 的 Flask 应用程序示例：
activecalls.py
主动调用.py
from flask import Flask, jsonify
application = Flask(__name__, static_url_path='')
@application.route('/')
def activecalls():
return application.send_static_file('activecalls/active_calls_map.html')
@application.route('/_getData', methods=['GET', 'POST'])
def getData():
#hit the data, package it, put it into json.
#ajax would have to hit this every so often to get latest data.
arr = {}
arr["blah"] = []
arr["blah"].append("stuff");
return jsonify(response=arr)
if __name__ == '__main__':
application.run()
Javascript json, /static/activecalls/active_calls_map.html:
Javascript json，/static/activecalls/active_calls_map.html：
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<script>
$.ajax({
//url : "http://dev.consumerunited.com/wsgi/activecalls.py/_getData",
url : "activecalls.py/_getData",
type: "POST",
data : formData,
datatype : "jsonp",
success: function(data, textStatus, jqXHR)
{
//data - response from server
alert("'" + data.response.blah + "'");
},
error: function (jqXHR, textStatus, errorThrown)
{
alert("error: " + errorThrown);
}
});
</script>
When you run this. The alert box prints: "stuff".
当你运行这个。警报框打印：“东西”。
回答by nullbyte
Just for people reading on it now. You have to render the /registrazione first, befor you can access the form data. Just write.
仅供现在阅读它的人使用。您必须先渲染 /registrazione，然后才能访问表单数据。写就好了。
@app.route("/registrazione")
def render_registrazione() -> "html":
return render_template("registrazione.html")
before you define def registration(). Sequence is key. You can't access data before the even are available. This is my understanding of the problem.
在定义 def registration() 之前。顺序是关键。在偶数可用之前，您无法访问数据。这是我对问题的理解。
