node.js - 使用 redis 作为数据库使用 nodeJS

Question

我在我的应用程序中使用“redis”模块。但这是抛出错误。我的代码如下 -

//应用程序.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var redis = require('redis');

var client = redis.createClient('localhost', 3000); 
client.on('connect', function() {
    console.log("connected");
});

这里是错误:

Adityas-MacBook-Air:node_elastic_redis adityagupta$ npm start 

> node_elastic_redis@0.0.0 start /Users/adityagupta/Desktop/node_elastic_redis 
> node ./bin/www events.js:154 throw er; // Unhandled 'error' event ^ 

Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED 127.0.0.1:6379 
    at Object.exports._errnoException (util.js:856:11) 
    at exports._exceptionWithHostPort (util.js:879:20) 
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1057:14)

Answer 1

根据documentation，端口应该是第一个参数像这样:

redis.createClient(port[, host][, options])

或者在你的情况下:

var client = redis.createClient(6379, 'localhost');