Nodejs 内存存储
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Nodejs in-memory storage
提问by Ionu? G. Stan
How do I store data to be used for all the clients in my server? (like the messages of a chat)
如何存储要用于服务器中所有客户端的数据？（就像聊天的消息）
回答by Ionu? G. Stan
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:
node.js 允许您构建的服务器是一个应用程序服务器，这意味着状态在请求之间保留在服务器端。以下代码段演示了这一点：
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/');
回答by Bharani
If you want more features have a look at redis-node-client
如果您想要更多功能，请查看redis-node-client
回答by iajnr
回答by christkv
Or use a native node storage mechanism (written in node.js)
或者使用原生节点存储机制（用node.js编写）
回答by tylucaskelley
I wrote Bxfor this purpose; it gives you a simple in-memory cache with:
我为此编写了Bx；它为您提供了一个简单的内存缓存：
- Key-value storage
- Optional expiration on any stored data
- Support for schemas using JSON-schema
- 键值存储
- 任何存储数据的可选过期
- 支持使用 JSON 模式的模式
Although I'm plugging my own repository here, I can assure you it works well and it's been used in production at my own company, Onshapefor over a year without issues. At the end of the day it's a pretty simple tool; not much to mess up here.
尽管我在这里插入了我自己的存储库，但我可以向您保证它运行良好，并且它已在我自己的公司Onshape 的生产中使用了一年多，没有出现任何问题。归根结底，它是一个非常简单的工具；这里没有什么可搞砸的。
However, if you're storing data that's meant to be permanent you're going to want a database such as MongoDB (w/ Mongoose), MySQL, etc. rather than a cache like Bx or Redis.
但是，如果您要存储永久的数据，您将需要一个数据库，例如MongoDB (w/ Mongoose)、MySQL等，而不是像 Bx 或Redis这样的缓存。
