实验环境
python 用的是3.11.11
其他环境可以通过这种方式一键安装:
pip install flask==3.1.0 Flask-SocketIO==5.4.1 gevent-websocket==0.10.1 -i https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple
pip list 详情如下:
Package Version
---------------- -------
bidict 0.23.1
blinker 1.9.0
click 8.1.7
Flask 3.1.0
Flask-SocketIO 5.4.1
gevent 24.11.1
gevent-websocket 0.10.1
greenlet 3.1.1
h11 0.14.0
itsdangerous 2.2.0
Jinja2 3.1.4
MarkupSafe 3.0.2
pip 24.2
python-engineio 4.11.1
python-socketio 5.11.4
setuptools 75.1.0
simple-websocket 1.1.0
Werkzeug 3.1.3
wheel 0.44.0
wsproto 1.2.0
zope.event 5.0
zope.interface 7.2
先看效果:
目录结构:
app2.py中的内容如下:
from flask import Flask, render_template, request
from flask_socketio import SocketIO, Namespace, join_room, leave_room
app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
def create_application(name, config=None, timeout=60, proxy=None):
app = Flask(name)
@app.route("/", methods=["GET", "POST"])
def main():
return render_template("index.html")
return app
class MyNamespace(Namespace):
def on_connect(self):
print("Client connected")
def on_joinRoom(self, message):
join_room(message['room'])
socket_io.emit("roomJoined", {
"user" : request.sid,
"room" : message['room']
},to=message['room'], namespace="/my_room")
def on_sendMsg(self,message):
print(message)
socket_io.emit('SendtoAll', {"msg":message["msg"], "user":request.sid}, to=message["room"], namespace="/my_room")
def on_leaveRoom(self,message):
print(message)
socket_io.emit('roomLeftPersonal', {"room": message['room'], "user": request.sid}, namespace="/my_room")
leave_room(message['room'])
socket_io.emit('roomLeft', {"room":message['room'], "user":request.sid}, to=message['room'], namespace="/my_room")
app = create_application("pipeagent_service", config=None)
socket_io = SocketIO(app, processes=True, cors_allowed_origins="*", async_mode='gevent')
socket_io.on_namespace(MyNamespace('/my_room'))
if __name__ == "__main__":
socket_io.run(app=app, host="0.0.0.0", debug=False, log_output=True)
index.html中的内容如下:
<!DOCTYPE html>
<html lang="en">
<head>
<title>flask socketio通信</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js" integrity="sha512-bLT0Qm9VnAYZDflyKcBaQ2gg0hSYNQrJ8RilYldYQ1FxQYoCLtUjuuRuZo+fjqhx/qtq/1itJ0C2ejDxltZVFg==" crossorigin="anonymous"></script>
<script type="text/javascript" src="//cdn.bootcss.com/socket.io/3.1.2/socket.io.min.js"></script>
<script type="text/javascript" src="{{url_for('static', filename='js/index.js')}}"></script>
</head>
<body>
<h3>Join Room</h3>
<form id="joinRoom" method="POST" action="#">
<label>Room Number</label>
<input type="text" id="roomNum" required>
<input type="submit" id="submitRoomNum">
</form>
<button id="leave_room">Leave</button>
<h1>Hello World</h1>
<ul id="chatContent">
<li>Text</li>
</ul>
<form id="SubmitForm" method="POST" action="#">
<h3>发送文字</h3>
<textarea placeholder="输入文字" name="msg" id="chatMsg" required></textarea>
<button type="submit">发送</button>
</form>
</body>
</html>
index.js中的内容如下:
$(document).ready(function(){
var socket = io.connect('http://localhost:5000/my_room');
socket.on('connect', function() {
socket.send('Client Connected')
});
$('form#joinRoom').submit(function (event){
socket.emit('joinRoom', {room:$('#roomNum').val()})
return false
});
socket.on('roomJoined', function (msg, cb) {
$('#chatContent').append('<li>' + msg.user + 'has joined room'+ msg.room +' </li>')
});
$('form#SubmitForm').submit(function (event){
socket.emit('sendMsg', {
msg:$('#chatMsg').val(),
room:$('#roomNum').val()
});
$('#chatMsg').val("");
return false
});
socket.on('SendtoAll', function (msg, cb) {
$('#chatContent').append('<li>' + msg.user + ': ' + msg.msg + '</li>')
});
$('#leave_room').on('click', function (){
socket.emit('leaveRoom', {room:$('#roomNum').val()})
console.log("sent")
});
socket.on('roomLeftPersonal', function (msg, cb) {
$('#chatContent').append('<li>' + 'you have left room'+ msg.room +' </li>')
});
socket.on('roomLeft', function (msg, cb) {
$('#chatContent').append('<li>' + msg.user + 'has left room'+ msg.room +' </li>')
});
})
运行:即 python app2.py 然后打开两个网页,并分别输入http://127.0.0.1:5000/ 开启愉快的自我交流吧