我开始使用 node.js，并且我有一个 REST 服务，它返回一些我需要在 Apache 上运行的页面中显示的数据，但我可以在我的应用程序中检索这些数据。
这是我的 REST 服务的代码，它运行良好：
服务器.js
var express = require('express'),
wine = require('./routes/wines');
var app = express();
app.configure(function () {
app.use(express.logger('dev')); /* 'default', 'short', 'tiny', 'dev' */
app.use(express.bodyParser());
});
app.get('/wines', wine.findAll);
app.get('/wines/:id', wine.findById);
app.post('/wines', wine.addWine);
app.put('/wines/:id', wine.updateWine);
app.delete('/wines/:id', wine.deleteWine);
app.listen(3000);
console.log('Listening on port 3000...');
wine.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('winedb', server);
db.open(function(err, db) {
if (!err) {
console.log("Connected to 'winedb' database");
db.collection('wines', {strict: true}, function(err, collection) {
if (err) {
console.log("The 'wines' collection doesn't exist. Creating it with sample data...");
populateDB();
}
});
}
});
exports.findById = function(req, res) {
var id = req.params.id;
console.log('Retrieving wine: ' + id);
db.collection('wines', function(err, collection) {
collection.findOne({'_id': new BSON.ObjectID(id)}, function(err, item) {
res.send(item);
});
});
};
exports.findAll = function(req, res) {
db.collection('wines', function(err, collection) {
collection.find().toArray(function(err, items) {
res.send(items);
});
});
};
exports.addWine = function(req, res) {
var wine = req.body;
console.log('Adding wine: ' + JSON.stringify(wine));
db.collection('wines', function(err, collection) {
collection.insert(wine, {safe: true}, function(err, result) {
if (err) {
res.send({'error': 'An error has occurred'});
} else {
console.log('Success: ' + JSON.stringify(result[0]));
res.send(result[0]);
}
});
});
}
exports.updateWine = function(req, res) {
var id = req.params.id;
var wine = req.body;
console.log('Updating wine: ' + id);
console.log(JSON.stringify(wine));
db.collection('wines', function(err, collection) {
collection.update({'_id': new BSON.ObjectID(id)}, wine, {safe: true}, function(err, result) {
if (err) {
console.log('Error updating wine: ' + err);
res.send({'error': 'An error has occurred'});
} else {
console.log('' + result + ' document(s) updated');
res.send(wine);
}
});
});
}
exports.deleteWine = function(req, res) {
var id = req.params.id;
console.log('Deleting wine: ' + id);
db.collection('wines', function(err, collection) {
collection.remove({'_id': new BSON.ObjectID(id)}, {safe: true}, function(err, result) {
if (err) {
res.send({'error': 'An error has occurred - ' + err});
} else {
console.log('' + result + ' document(s) deleted');
res.send(req.body);
}
});
});
}
};
这是我在 apache 上运行的应用程序，这是行不通的：
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<script type="text/javascript" src="jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$.ajax({
type: "GET",
data: '{}',
contentType: "application/json; charset=utf-8",
url: "myrestservice:3000/wines/",
dataType: "jsonp",
processdata: true,
success: function(data) {
$('#wines').html(data);
}
});
});
</script>
</head>
<body>
<div id="wines"></div>
</body>
</html>