瓶插槽IO ValueError異常

我正在上運行我的代碼以下錯誤：瓶插槽IO ValueError異常

「ValueError異常：查看功能並沒有返回響應」

以下是我的瓶代碼：

from flask import Flask, render_template 
from flask_socketio import SocketIO, send 
from flask import render_template 

app = Flask(__name__) 
app.config['Secret_Key'] = 'mysecret' 
socketio = SocketIO(app) 

@app.route('/') 
def hello_world(): 
    render_template('index.html') 

@socketio.on('message') 
def handleMessage(msg): 
    print ('Message:' + msg) 
    send (msg, broadcast = True) 

if __name__ == '__main__': 
    socketio.run(app)

以下是我的index.html代碼：

<html> 
<head> 
<title>Chat Room</title> 
<script type= "text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/1.7.4/socket.io.js"> </script> 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"> </script> 
</head> 
<body> 
<script type= "text/javascript"> 
$(document).ready(function() { 

    var socket = io.connect('http://127.0.0.1:5000'); 

    socket.on('connect',function() { 
     send.send('User has connected!'); 
    }); 
    socket.on('message', function(msg) { 
     $("#messages").append('<li>'+msg+'</li>') 
    }); 

     $('#sendbutton').on('click',function() { 
     socket.send($('#myMessage').val()); 
     $('#myMessage').val(''); 
    }); 
}); 
</script> 
<ul id= "messages"> </ul> 
<input type="text" id="myMessage"> 
<button id="sendbutton">Send</button> 
</body> 
</html>

我收到以下錯誤，當我打開本地主機：通過我的瀏覽器5000：

Internal Server Error 

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

來源

2017-05-14 Inherited Geek

的問題是在這裏：

@app.route('/') 
def hello_world(): 
    render_template('index.html')

您應該返回渲染模板，更改爲：

@app.route('/') 
def hello_world(): 
    return render_template('index.html')

其他功能可能有同樣的問題。

來源

2017-05-14 13:54:20 janos

我不敢相信，我剛纔在那裏:( –

瓶插槽IO ValueError異常

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