node.js - Express REST API 不返回整数数组

Question

我是第一次使用 Express，遇到了一个问题。我正在尝试修改 this tutorial出于我的目的，但我使用的是 Redis 而不是 MongoDB。

这是我的代码:

redisSource.js:

var redis = require ("node-redis");

RedisSource = function () {
        this.r_client = redis.createClient();

        this.getParents = function (circuit_id, cb) {
                this.r_client.smembers('circuit.parents_of:' + circuit_id, function(err, reply){
                        console.log("Reply: " + reply);
                        cb(err, reply);
                });
        }
}

exports.RedisSource = RedisSource;

获取.js:

Fetch = function(app) {
        var RedisSource = require ('./redisSource').RedisSource;
        var redisSource = new RedisSource();

        app.get('/parents/:id', function(req, res) {
                redisSource.getParents(req.params.id, function (error, parents) {
                        console.log ("Response in Fetch main: " + parents);
                        res.send(parents);
                });
        });

        app.get('/test', function (req, res) {
                res.send('Hello, world!');
        });
};

exports.Fetch = Fetch;

app.js:

/**
 * Module dependencies.
 */

var express = require('express');
var routes = require('./routes');
var user = require('./routes/user');
var http = require('http');
var path = require('path');

var app = express();

// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

// development only
if ('development' == app.get('env')) {
  app.use(express.errorHandler());
}

app.get('/', routes.index);
app.get('/users', user.list);

var Fetch = require('./fetch').Fetch;
var FetchService = new Fetch(app);

http.createServer(app).listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
});

当我运行应用程序时，我得到以下信息:

GET http://ironsides.zayo.com:3000/test
> Hello, world!

这是我所期望的。但是当我尝试另一个电话时:

GET http://ironsides.zayo.com:3000/parents/12115
> [ [ 49, 53, 50, 55, 51 ], [ 49, 53, 50, 56, 56 ], [ 49, 53, 51, 48, 56 ], [ 49, 53, 51, 48, 57 ], [ 49, 53, 51, 49, 48 ], [ 49, 53, 51, 49, 49 ], [ 49, 53, 51, 50, 56 ], [ 49, 53, 51, 50, 57 ], [ 49, 53, 51, 51, 48 ], [ 49, 53, 51, 52, 49 ], [ 51, 51, 50, 54, 51 ] ]

在控制台上，我得到这个:

GET /parents/12115 200 74ms - 530b
Reply: 15273,15288,15308,15309,15310,15311,15328,15329,15330,15341,33263
Response in Fetch main: 15273,15288,15308,15309,15310,15311,15328,15329,15330,15341,33263

我期待在控制台上看到一个整数数组。相反，我得到了这些整数的 ascii 字符代码数组。我真的很困惑。我确定我遗漏了一些简单的东西。

Answer 1

怎么样:

res.send(parents.toString());