简短的回答：io.sockets.adapter.rooms我分析了io：如该答案所示，来自 io 的套接字输出部分包含以下内容：sockets: { manager: [Circular], name: '', sockets: { '210837319844898486': [Object] }, auth: false, flags: { endpoint: '', exceptions: [] }, _events: { connection: [Function] } },在哪里adapter？在哪里rooms？从输出中找出适配器和房间的方法是什么io？
3 回答
慕莱坞森
TA贡献1810条经验 获得超4个赞
我认为您在加入之前试图获得空间。首先，您必须加入房间，然后才能进入房间io.sockets.adapter.rooms
let room_id = 111
io.sockets.on("connection", function (socket) {
// Everytime a client logs in, display a connected message
console.log("Server-Client Connected!");
socket.join("_room" + room_id);
socket.on('connected', function (data) {
});
console.log(io.sockets.adapter.rooms);
socket.on('qr_code_scan', function (room_id) {
io.sockets.in("_room" + room_id).emit("qr_code_scan", true);
});
});
的记录io.sockets.adapter.rooms
{bjYiUV5YZy54VedKAAAA: Room, _room111: Room}
app.js:55
_room111:Room {sockets: {…}, length: 1}
length:1
sockets:{-isBAZIB-Sm3jArgAAAB: true}
-isBAZIB-Sm3jArgAAAB:true
__proto__:Object
__proto__:Object
-isBAZIB-Sm3jArgAAAB:Room {sockets: {…}, length: 1}
length:1
sockets:{-isBAZIB-Sm3jArgAAAB: true}
-isBAZIB-Sm3jArgAAAB:true
__proto__:Object
__proto__:Object
__proto__:Object
子衿沉夜
TA贡献1828条经验 获得超3个赞
对于“socket.io”的当前版本：“^4.1.2”，
io.sockets.adapter.rooms
是这样的地图：
Map(2) { 'hgdAp3ghn1RQZk3iAAAD' => Set(1) { 'hgdAp3ghn1RQZk3iAAAD' }, 'test' => Set(1) { 'hgdAp3ghn1RQZk3iAAAD' } }
当房间已经存在时，在本例中为“测试”。
如果您在创建房间之前调用它，那么它将是：
Map(1) { 'w2e2Vnav-zmf6pm4AAAD' => Set(1) { 'w2e2Vnav-zmf6pm4AAAD' } }
因此，长答案是它取决于您使用的版本，对于 4.x 版，房间只会在用户加入房间后成为地图的一部分，而不是之前。
POPMUISE
TA贡献1765条经验 获得超5个赞
我不确定该响应是怎么回事。但我可以确认，当我使用 socket.io@2.1.1 和 console.log(io) 运行基本的 socket.io 示例时，我在终端中看到以下内容：
Server {
nsps: {
'/': Namespace {
name: '/',
server: [Circular],
sockets: [Object],
connected: [Object],
fns: [],
ids: 0,
rooms: [],
flags: {},
adapter: [Adapter],
_events: [Object: null prototype],
_eventsCount: 1
}
},
parentNsps: Map {},
_path: '/socket.io',
_serveClient: true,
parser: {
protocol: 4,
types: [
'CONNECT',
'DISCONNECT',
'EVENT',
'ACK',
'ERROR',
'BINARY_EVENT',
'BINARY_ACK'
],
CONNECT: 0,
DISCONNECT: 1,
EVENT: 2,
ACK: 3,
ERROR: 4,
BINARY_EVENT: 5,
BINARY_ACK: 6,
Encoder: [Function: Encoder],
Decoder: [Function: Decoder]
},
encoder: Encoder {},
_adapter: [Function: Adapter],
_origins: '*:*',
sockets: Namespace {
name: '/',
server: [Circular],
sockets: { WFrro9MpS4d1nSouAAAA: [Socket] },
connected: { WFrro9MpS4d1nSouAAAA: [Socket] },
fns: [],
ids: 0,
rooms: [],
flags: {},
adapter: Adapter {
nsp: [Circular],
rooms: [Object],
sids: [Object],
encoder: Encoder {}
},
_events: [Object: null prototype] { connection: [Array] },
_eventsCount: 1
},
eio: Server {
clients: { WFrro9MpS4d1nSouAAAA: [Socket] },
clientsCount: 1,
wsEngine: 'ws',
pingTimeout: 5000,
pingInterval: 25000,
upgradeTimeout: 10000,
maxHttpBufferSize: 100000000,
transports: [ 'polling', 'websocket' ],
allowUpgrades: true,
allowRequest: [Function: bound ],
cookie: 'io',
cookiePath: '/',
cookieHttpOnly: true,
perMessageDeflate: { threshold: 1024 },
httpCompression: { threshold: 1024 },
initialPacket: [ '0' ],
ws: WebSocketServer {
_events: [Object: null prototype] {},
_eventsCount: 0,
_maxListeners: undefined,
options: [Object],
[Symbol(kCapture)]: false
},
_events: [Object: null prototype] { connection: [Function: bound ] },
_eventsCount: 1
},
httpServer: Server {
insecureHTTPParser: undefined,
_events: [Object: null prototype] {
connection: [Function: connectionListener],
close: [Function: bound ],
listening: [Function: bound ],
upgrade: [Function],
request: [Function]
},
_eventsCount: 5,
_maxListeners: undefined,
_connections: 2,
_handle: TCP {
reading: false,
onconnection: [Function: onconnection],
[Symbol(owner_symbol)]: [Circular]
},
_usingWorkers: false,
_workers: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 120000,
keepAliveTimeout: 5000,
maxHeadersCount: null,
headersTimeout: 60000,
_connectionKey: '6::::8080',
[Symbol(IncomingMessage)]: [Function: IncomingMessage],
[Symbol(ServerResponse)]: [Function: ServerResponse],
[Symbol(kCapture)]: false,
[Symbol(asyncId)]: 6
},
engine: Server {
clients: { WFrro9MpS4d1nSouAAAA: [Socket] },
clientsCount: 1,
wsEngine: 'ws',
pingTimeout: 5000,
pingInterval: 25000,
upgradeTimeout: 10000,
maxHttpBufferSize: 100000000,
transports: [ 'polling', 'websocket' ],
allowUpgrades: true,
allowRequest: [Function: bound ],
cookie: 'io',
cookiePath: '/',
cookieHttpOnly: true,
perMessageDeflate: { threshold: 1024 },
httpCompression: { threshold: 1024 },
initialPacket: [ '0' ],
ws: WebSocketServer {
_events: [Object: null prototype] {},
_eventsCount: 0,
_maxListeners: undefined,
options: [Object],
[Symbol(kCapture)]: false
},
_events: [Object: null prototype] { connection: [Function: bound ] },
_eventsCount: 1
}
}
随着房间io.sockets.adapter.rooms。
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