如何在节点js中使用jquery自动完成

我试图用节点rest服务实现jquery自动完成，但我可以让它工作。

这是我的源代码：

自动完成：

$('#search').autocomplete({ source: function (req, res) { $.ajax({ url: "http://www.example.com:3000/autocomplete", dataType: "jsonp", type: "GET", data: { term: req.term }, success: function (data) { res($.map(data.results, function (item) { return { label: item.id, value: item.id }; })); }, error: function (xhr) { alert(xhr.status + ' : ' + xhr.statusText); } }); } }); 

节点服务

 exports.find = function(req, res) { var b=req.params.term; console.log(b); db.collection('publication', function(err, collection) { collection.find({type:'pub',content: new RegExp(b, 'i') }).limit(5).toArray(function(err, items) { res.jsonp(items); }); }); }; 

b在控制台中显示为未定义，并且自动完成function不起作用

Answer 1

如果有人需要它

index.js

 var express = require('express'), autocomplete=require('./routes/autocomplete'); var app = express(); app.configure(function () { app.use(express.logger('dev')); /* 'default', 'short', 'tiny', 'dev' */ app.use(express.bodyParser()); }); app.get('/autocomplete/:search',autocomplete.find); app.listen(6000); console.log('Listening on port 3000...'); 

autocomplete.js

 var mongo = require('mongodb'); var Server = mongo.Server, Db = mongo.Db, BSON = mongo.BSONPure; var server = new Server('localhost', 27017, {auto_reconnect: true}); db = new Db('redsocial', server); db.open(function(err, db) { if (!err) { console.log("Connected to 'mydb' database"); db.collection('publication', {strict: true}, function(err, collection) { if (err) { console.log("error"); } }); } }); exports.find = function(req, res) { var b=req.params.search; db.collection('publication', function(err, collection) { collection.find({type:'pub',content: new RegExp(b,'i')}).limit(5).toArray(function(err, items) { res.jsonp(items); }); }); }; 

jQuery的

 $('#search').autocomplete({ source: function(req,res) { $.ajax({ url: "http://www.ejemplo.com:3000/autocomplete/"+req.term, dataType: "jsonp", type: "GET", data: { term: req.term }, success: function(data) { res($.map(data, function(item) { return { label: item.text,//text comes from a collection of mongo value: item.text }; })); }, error: function(xhr) { alert(xhr.status + ' : ' + xhr.statusText); } }); }, select: function(event, ui) { } }); 

源代码： 链接