Redis认识

npm install redis

var redis = require("redis"),
client = redis.createClient(6379, '127.0.0.1', {});

client.set("loginid", "1", redis.print);//redis.print，回调函数，将redis的返回值显示出来。上一句执行结果，将返回“OK”
client.get("loginid",redis.print);

client.hset("hash_key", "userid", "15", redis.print);
client.hset(["hash_key", "roleid", "16"], redis.print);


//遍历哈希表"hash key"
client.hkeys("hash_key", function (err, replies) {
    console.log(replies.length + " replies:");
    replies.forEach(function (reply, i) {
        console.log("    " + i + ": " + reply);
    });
    client.quit();
});

set loginid 1
get loginid