Nodejs 内存存储 [英] Nodejs in-memory storage

问题描述

如何在我的服务器中存储要用于所有客户端的数据?(就像聊天的消息)

How do I store data to be used for all the clients in my server? (like the messages of a chat)

推荐答案

node.js 允许您构建的服务器是一个应用程序服务器，这意味着在服务器端保留请求之间的状态.以下代码段演示了这一点:

The server that node.js allows you to build, is an application server, which means that state is preserved, between request, on the server side. The following snippet demonstrates this:

var sys  = require('sys'),
    http = require('http');

var number = 0;

http.createServer(function (req, res) {
        console.log(req.method, req.url);

        res.writeHead(200, {'Content-Type': 'text/html'});
        res.write('<h1>Number is: ' + number + '</h1>');
        res.end();

        number++;

}).listen(8000);

sys.puts('Server running at http://127.0.0.1:8000/');

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