nodejs中文教程-nodejs如何操作mongoDB的实例
【转】学习了一下Nodejs和MongoDB,写了个示例程序,读取数据库中产品的列表。
var http = require("http"),events = require("events");http.createServer(function(req, res) {var products_emitter = new events.EventEmitter(),// 创建到northwind数据库的链接。相当于use northwinddb = new mongo.Db("northwind", new mongo.Server('localhost', 27017, {}), {});var listener = function(products) {var html = [], len = products.length;html.push('<!DOCTYPE html>');html.push('<html>');html.push('<head>');html.push('<title>Nodejs</title>');html.push('</head>');html.push('<body>');if(len > 0) {html.push('<ul>');for(var i = 0; i < len; i++) {html.push('<li>' + products[i].name + '</li>');}html.push('</ul>');}html.push('</body>');html.push('</html>');res.writeHead(200, "Content-Type: text/html");res.write(html.join(''));res.end();clearTimeout(timeout);}products_emitter.on('products', listener);var timeout = setTimeout(function() {products_emitter.emit('products', []);products_emitter.removeListener('products', listener);}, 10000);db.open(function() {// 打开名为products的表db.collection("products", function(err, collection) {// select * from products 相当于db.products.find()collection.find(function(err, cursor) {cursor.toArray(function(err, items) {products_emitter.emit('products', items);});});});});}).listen(8000);console.log("Started");原文地址:http://www.zhoumingzhi.com/2011/01/13/nodejs%E5%92%8Cmongodb%E5%88%9D%E4%BD%93%E9%AA%8C/
