nodejs中使用redis

发表于

最简单的使用

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var redis = require('redis');
var config = require('./config/redisConfig');
client = redis.createClient(config.redis.port, config.redis.ip, {});

上面用到的 redisConfig 中的相关配置

  • 本地

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    var redis = {
        ip: '127.0.0.1',
        port: '6379'
    };

  • 线上

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    var redis = {
        ip: '',
        port: '6379',
        pwd: ''
    };

set,get,expire 都在 client 对象上操作

实战中使用 redis

这里将一些简单常用的操作封装成了 redisHandle.js

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function auth(client, pwd) {
    client.auth(pwd, () => console.log('通过认证'));
}

function checkOn(client) {
    client.on('error', (error) => console.log(error));
}

function getItem(client, key) {
    return new Promise((resolve, reject) => {
        client.get(key, (err, reply) => {
            if (err) {
                reject(err);
            } else {
                resolve(reply);
            }
        });
    });
}

function setItem(client, key, val) {
    return new Promise((resolve, reject) => {
        client.set(key, val, (err, reply) => {
            if (err) {
                reject(err);
            } else {
                resolve(reply);
            }
        });
    });
}

function clearItem(client, key) {
    client.expire(key, 1);
}

module.exports = {
    auth,
    getItem,
    setItem,
    clearItem
}