Question

我在这里看到过类似的问题，但到目前为止，我一直无法找到解决问题的方法-我现在可能会发疯。

我正在尝试使用 socket.io ，到目前为止，我已经设置了一个快速服务器，并在服务器和客户端（socket.io）上运行socket.io。 -客户端）。

不幸的是，当我尝试从客户端与服务器通信时，我立即遇到重复的 404错误：

GET http://localhost:3000/socket.io/?EIO=3&transport=polling&t=MU8YJvg 404 (Not Found)
GET http://localhost:3000/socket.io/?EIO=3&transport=polling&t=MU8YJvg 404 (Not Found)
GET http://localhost:3000/socket.io/?EIO=3&transport=polling&t=MU8YJvg 404 (Not Found)
...

基本上，我的BrowserSync将在localhost：3000运行，而express / socket.io将在localhost：8080运行

我的表达设置如下：

const express = require("express");
const app = express();
const path = require("path");
const proxy = require("http-proxy-middleware");
const http = require("http").Server(app);
const io = require("socket.io").listen(http);


io.on("connection", socket => {
  console.log("a user connected: ", socket.id);
});

app.set("port", 8080);

// Attempt to proxy around BrowserSync
app.use(
  "/socket-io",
  proxy({
    target: "http://localhost:8080",
    ws: true,
    pathRewrite: { "^/socket.io": "/" }
  })
);

http.listen(8080, () => {
  console.log(`Listening on ${http.address().port}`);
});

webpack.config.js

....
plugins: [
    definePlugin,
    new BrowserSyncPlugin({
      host: process.env.IP || "localhost",
      port: process.env.PORT || 3000,
      server: {
        baseDir: ["./", "./dist"]
      }
    })
]
...

我正在使用

(dev-deps)
    "browser-sync": "^2.26.3",
    "browser-sync-webpack-plugin": "^2.2.2",
(deps)
    "express": "^4.16.4",
    "socket.io": "^2.2.0",
    "socket.io-client": "^2.2.0",

在此方面的任何帮助，我将非常感谢，因为没有任何意义了。

Answer 1

似乎我陷入了将自己与config混淆的困境。

我将事情简化为：

表达：

const express = require("express");
const app = express();
const http = require("http").createServer(app);
const io = require("socket.io").listen(http);
const { addPlayerIO } = require("./utils/addPlayer.io");

io.on("connection", socket => {
   console.log("a user connected: ", socket.id);
});

http.listen(8080, () => {
  console.log(`Listening on ${http.address().port}`);
});

webpack.config.js

....
plugins: [
    definePlugin,
    new BrowserSyncPlugin({
      host: process.env.IP || "localhost",
      port: process.env.PORT || 3000,
      server: {
        baseDir: ["./", "./dist"]
      }
    })
]
...

任何客户端页面

const socketURL = 'http://localhost:8080' // whatever your socket port
const socket = io(socketURL);

socket.on("someEvent", data => {
    console.log(`I can now do something with ${data}`);
});

结果是所有404都消失了。我不是100％知道是什么原因造成的，尽管清理机器可以确保不再因连接中断而感到陌生。

Socket.io-GET返回404（未找到）（polling-xhr）

1 个答案: