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ClassContent/历届学生/逯帅帅/项目开发/上课项目/聊天室/backend/index.js
2024-09-27 02:06:13 +08:00

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const app = require("express")();
const httpServer = require("http").createServer(app);
const io = require("socket.io")(httpServer, {});
// 保存在线用户数据
var userOnline = []
io.on("connection", socket => {
console.log("有一个客户端建立了链接");
socket.on("login", (res) => {
console.log(res);
var isHave = userOnline.filter((val,index) => {
return val.username == res.username
});
if (isHave.length > 0) {
socket.emit("UserNameExist");
} else {
userOnline.push(res);
socket.join(res.roomid);
socket.emit("LoginSuccess");
}
});
socket.on("getUserOnline", (id) => {
console.log("房间号:",id)
console.log("UserOnline:",userOnline)
socket.join(id);
// socket.emit("UserOnline", userOnline);
io.in(id).emit("UserOnline", userOnline);
});
socket.on("getMessage", (res) => {
socket.to(res.roomid).emit("sedMessage", res);
});
});
httpServer.listen(3000);