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我正在使用v0.10.37。我的邏輯是全部由我的檢測代碼設置是不正確的。Nodejs檢查客戶端是否仍然連接
如果（typeof運算（socket.to（鍵）.connected [關鍵]）=== '未定義'）
是我目前使用來檢測一下，我也試過的typeof（socket.to（鍵）.connected [鍵] .connected它拋出了一個未定義的錯誤（爲什麼我改變了上面的代碼）我需要的代碼工作，所以客戶端數組添加一個新的clientid客戶端時，它會刪除所有無效clientids通知可以順利推送到客戶端。
var http = require('http');
var io = require('socket.io');
server = http.createServer(function(req, res){});
server.listen(8082);
var socket = io.listen(server);
var clients = {};
socket.on('connection', function(client)
{
client.on('setUserId',function(userid)
{
console.log("add");
if(typeof(clients[userid[0]])==='undefined')
clients[userid[0]] = {};
clients[userid[0]][userid[1]] = userid[1];
console.log(clients);
for(var key in clients[userid[0]])
{
if (typeof(socket.to(key).connected[key]) ==='undefined')
delete clients[userid[0]][userid[1]];
}
});
client.on('removeUserId',function(userid)
{
console.log("remove");
delete clients[userid[0]][userid[1]];
counter = 0;
for(var key in clients[userid[0]])
counter++;
if (counter == 0)
delete clients[userid[0]];
console.log(clients);
});
client.on('message', function(msg)
{
if (msg.indexOf("notifications") != -1)
{
userid = msg.replace("notifications","");
for(var key in clients[userid])
{
sessionid = key;
console.log("notification sent" + msg);
socket.to(sessionid).emit('message',msg);
}
}
else if (msg.indexOf("message") != -1)
{
userid = msg.replace("message","");
for(var key in clients[userid])
{
sessionid = key;
console.log("private message sent" + msg);
socket.to(sessionid).emit('message',msg);
}
}
else
{
ids = msg.split(",");
for (i = 0; i < ids.length;i++)
{
userid = ids[i];
for(var key in clients[userid])
{
sessionid = key;
displaymessage = "notifications" + msg;
console.log("notification sent" + displaymessage);
socket.to(sessionid).emit('message',displaymessage);
}
}
}
})
});