为什么不't通过socket.io发射事件火

Why doesn't emit event fire by socket.io

本文关键字：io 发射 事件 socket 通过 为什么不      更新时间：2023-09-26

我使用的是socket.io+express。我想从客户端向服务器发出"start"answers"user_info"事件。但它不起作用。我是这样写的。。。

server.js

var express = require("express");
var http = require("http");
var socket = require("socket.io");
var app = express();
var ejs = require("ejs");
var server = http.createServer(app);
var io = require("socket.io").listen(server);
var redis = require("redis");
var _ = require("underscore");
require("./models/User");
app.get("/",function(req,res){
  res.render("index",{});
});
  
  socket.on("start",function(data){
    console.log("Started");
  });
   socket.on("user_info",function(user_info){
    var self = this;
        var name = user_info.name;
        var password = user_info.password;
    user.name = name;
    user.password = password;
    var data = JSON.stringify({name: name,password: password});
  });

### client.js

$(document).ready(function(){
    var socket = io.connect("http://localhost:8080");
  
 
    $("#register-btn").on("click",function(data){
        $("#notice").html("Registerd");
        var name = $("#name").val();
        var password = $("#password").val();
        var confirmPassword = $("#confirm-password").val();
        if (name && (password === confirmPassword)){
                    // user_info event is works.
            socket.emit("user_info",{"name": name,"password": password});
                    // I wonder why  start event does not works.
                    socket.emit("start",{"name": "yahoo"});
        }else{
            $("#notice").html("try again");
        }
    });
});

我不知道为什么"启动"活动并没有被解雇。你知道吗？

您缺少Socket.io 的连接部分

// Noticed I removed the var socket = require('....
var io = require("socket.io").listen(server);
io.sockets.on('connection', function (socket) {
   console.log('Client Connected')       
   socket.on("start",function(data){
      console.log("Started");
   });
   socket.on("user_info",function(user_info){
      var self = this;
      var name = user_info.name;
      var password = user_info.password;
      user.name = name;
      user.password = password;
      var data = JSON.stringify({name: name,password: password});
   });
});

您可能想阅读文档@http://socket.io/

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