通过套接字客户端返回变量

【问题标题】：Return variable by socket client通过套接字客户端返回变量
【发布时间】：2018-01-22 11:35:02
【问题描述】：

我有以下问题。如何从另一个 JS 文件向套接字返回新值？

App.js

io.on('connection', function (socket) {
    socket.currentRoomId = 0;
    socket.currentRoomName = "Loading...";
    socket.currentRoomOwner = 1;
    socket.currentRoomEntry = 1.1;
});

RoomManager.js

adapter.query(sql, function(err, rows) {
    rows.forEach( (row) => { 
       socket.currentRoomId = parseInt(row.Id);
       socket.currentRoomName = row.room_name;
       socket.currentRoomOwner = row.room_owner;
       socket.currentRoomEntry = row.room_entry;
    });
});

您好。

【问题讨论】：

标签： javascript mysql node.js sockets socket.io

【解决方案1】：

你必须像这样emit 和listen，

RoomManager.js

adapter.query(sql, function(err, rows) {
    rows.forEach( (row) => { 
       // emit setCurrentData with the row data
       socket.emit('setCurrentData', { data: row });
    });
});

App.js

io.on('connection', function (socket) {
    socket.currentRoomId = 0;
    socket.currentRoomName = "Loading...";
    socket.currentRoomOwner = 1;
    socket.currentRoomEntry = 1.1;

    // listen to setCurrentData 
    socket.on('setCurrentData', function (row) {
       socket.currentRoomId = parseInt(row.data.Id);
       socket.currentRoomName = row.data.room_name;
       socket.currentRoomOwner = row.data.room_owner;
       socket.currentRoomEntry = row.data.room_entry;
    });
});

【讨论】：