Shulou(Shulou.com)06/01 Report--

Var http = require ("http")

Mongo = require ("mongodb")

Events = require ("events")

Http.createServer (function (req, res) {

Var products_emitter = new events.EventEmitter ()

/ / create a link to the northwind database. Equivalent to use northwind

Db = new mongo.Db ("northwind", new mongo.Server ('localhost', 27017, {}), {})

Var listener = function (products) {

Var html = [], len = products.length

Html.push ('')

Html.push ('')

Html.push ('')

Html.push ('Nodejs')

Html.push ('')

Html.push ('')

If (len > 0) {

Html.push ('')

For (var I = 0; I < len; iTunes +) {

Html.push (''+ products [I] .name +'')

}

Html.push ('')

}

Html.push ('')

Html.push ('')

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 () {

/ / Open the table named products

Db.collection ("products", function (err, collection) {

/ / select * from products is equivalent to db.products.find ()

Collection.find (function (err, cursor) {

Cursor.toArray (function (err, items) {

Products_emitter.emit ('products', items)

});

});

});

});

}) .customers (8000)

Console.log ("Started")

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