server
# @File: ws
from flask import Flask, request, render_template
from geventwebsocket.handler import WebSocketHandler
from geventwebsocket.websocket import WebSocket # 我用来做语法提示
from gevent.pywsgi import WSGIServer
import json
app = Flask(__name__) # type:Flask
# 存放用户对应的，收件人，发件人，以及信息
# 可以做聊天室 {聊天室id:[], 聊天室id:[]...}
# 两个用户之间的聊天{"用户名":{信息}, "用户名":{信息}}
user_socket_dict = {} # type:dict
@app.route('/')
def index():
return render_template('single.html')
@app.route("/ws/<user>")
def ws(user):
user_socket = request.environ.get('wsgi.websocket') # type:WebSocket
if user_socket:
user_socket_dict[user] = user_socket
print(len(user_socket_dict), user_socket_dict)
while 1:
msg = user_socket.receive()
print(msg) # b"{from_user:xx, to_user:xx,msg:xx}"
msg_dict = json.loads(msg)
to_usocket = user_socket_dict.get(msg_dict.get("to_user")) # type:WebSocket
to_usocket.send(json.dumps({"from_user": user, "to_user": msg_dict.get("to_user"), "msg": msg_dict.get("msg")}))
if __name__ == '__main__':
http_server = WSGIServer(("0.0.0.0", 5000), app, handler_class=WebSocketHandler)
http_server.serve_forever()
single.html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta http-equiv="content-Type" charset="UTF-8">
<meta http-equiv="x-ua-compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Title</title>
</head>
<body>
<p>您的昵称：<input type="text" id="nick">
<button onclick="openws()">进入聊天室</button>
</p>
<p>给<input type="text" id="to_user">发送：<input type="text" id="message">
<button onclick="send_msg()">发送消息</button>
</p>
<div id="msg_list" style="width: 500px;">
</div>
</body>
<script type="application/javascript">
var ws = null;
// ws.onopen = function(){
// alert("欢迎来到S14群喷");
// };
function openws() {
var nick = document.getElementById("nick").value;
ws = new WebSocket("ws://192.168.12.41:5000/ws/" + nick);
ws.onmessage = function (ws_status) {
console.log(ws_status.data);
var msg_obj = JSON.parse(ws_status.data);
var ptag = document.createElement("p");
ptag.innerText = msg_obj.from_user + " : " + msg_obj.msg;
document.getElementById("msg_list").appendChild(ptag);
};
}
function send_msg() {
var msg = document.getElementById("message").value;
var from_user = document.getElementById("nick").value;
var to_user = document.getElementById("to_user").value;
var ptag = document.createElement("p");
ptag.style.cssText = "text-align: right;";
ptag.innerText = msg + " : " + from_user;
document.getElementById("msg_list").appendChild(ptag);
var msg_obj = {
msg: msg,
from_user: from_user,
to_user: to_user
};
ws.send(JSON.stringify(msg_obj));
};
</script>
</html>
