|
|
const express = require('express'),
|
|
|
app = express(),
|
|
|
server = require('http').createServer(app),
|
|
|
io = require('socket.io').listen(server),
|
|
|
users = [];
|
|
|
let kit={
|
|
|
isHaveUser(user){
|
|
|
var flag=false;
|
|
|
users.forEach(function (item) {
|
|
|
if(item.name==user.name){
|
|
|
flag=true;
|
|
|
}
|
|
|
})
|
|
|
return flag;
|
|
|
},
|
|
|
delUser(id){
|
|
|
users.forEach(function (item,index) {
|
|
|
if(item.id==id){
|
|
|
users.splice(index, 1);
|
|
|
}
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
app.use('/', express.static(__dirname + '/static'));
|
|
|
io.sockets.on('connection', function(socket) {
|
|
|
//创建用户链接
|
|
|
socket.on('login', function(user) {
|
|
|
if (kit.isHaveUser(user)) {
|
|
|
console.log("登录失败！",user)
|
|
|
socket.emit('loginFail',"登录失败,昵称已存在!");
|
|
|
} else {
|
|
|
socket.user = user;
|
|
|
user.id=socket.id;
|
|
|
console.log("登录成功！",user)
|
|
|
socket.emit('loginSuccess',user,users);
|
|
|
users.push(user)
|
|
|
socket.broadcast.emit('system', user,'join');
|
|
|
};
|
|
|
});
|
|
|
//用户注销链接
|
|
|
socket.on('disconnect', function() {
|
|
|
if (socket.user!= null) {
|
|
|
kit.delUser(socket.id);
|
|
|
console.log("用户退出！",socket.user)
|
|
|
socket.broadcast.emit('system', socket.user, 'logout');
|
|
|
}
|
|
|
});
|
|
|
//群发消息
|
|
|
socket.on('groupMessage', function(msg) {
|
|
|
socket.broadcast.emit('groupMessage', socket.user, msg);
|
|
|
});
|
|
|
//发送私信
|
|
|
socket.on('message', function(id,msg) {
|
|
|
socket.broadcast.to(id).emit('message',socket.user,msg);
|
|
|
});
|
|
|
});
|
|
|
server.listen(3000,function () {
|
|
|
console.log("服务器已启动在：3000端口","http://localhost:3000`")
|
|
|
}); |