Node.js - 基本节点 Web 服务器不提供 Socket.io 客户端文件 [英] Node.js - Socket.io client file not being served by basic node web server

问题描述

I m very new to Node.js and Socket.io. I have built a very basic web server however when using it, I am unable to load the socket.io client file (I get a 404).

I am trying to use this client side code:

<script src="/socket.io/socket.io.js"></script>

My understanding is that Node should pick this up and resolve it? It does on a much simpler web server example.

My web server example where it is NOT resolved is as follows:

var server = http.createServer(function (request, response) {

    console.log('request starting...');

    var filePath = '.' + request.url;
    if (filePath == './')
        filePath = './index.html';

    var extname = path.extname(filePath);
    var contentType = 'text/html';
    switch (extname) {
        case '.js':
            contentType = 'text/javascript';
            break;
        case '.css':
            contentType = 'text/css';
            break;
    }

    path.exists(filePath, function(exists) {

        if (exists) {
            fs.readFile(filePath, function(error, content) {
                if (error) {
                    response.writeHead(500);
                    response.end();
                }
                else {
                    response.writeHead(200, { 'Content-Type': contentType });
                    response.end(content, 'utf-8');
                }
            });
        }
        else {
            response.writeHead(404);
            response.end();
        }
    });

My web server code where it DOES resolve is as follows:

app.listen(8080);

function handler (req, res) {
  fs.readFile(__dirname + '/index.html',
  function (err, data) {
    if (err) {
      res.writeHead(500);
      return res.end('Error loading index.html');
    }

    res.writeHead(200);
    res.end(data);
  });
}

Can anyone advise on what is causing it not serve the socket.io file on the client using the first web server example?

Best regards, Ben.

解决方案

You are probably running Socket.IO on a different port, so include the file in the following format:

server:port/socket.io/socket.io.js

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