如何通过 node_redis 创建队列

Question

我已尝试在 node_redis. And I don't understand how to create queue. I have tried to use zadd method. I have run example code from REDIS 中创建队列，但下一个代码出现错误：

var redis = require("redis");
client = redis.createClient();
const {promisify} = require('util');
const getAsync = promisify(client.get).bind(client);


client.on("error", function (err) {
    console.log("Error " + err);
});

var args = [ 'myzset', 1, 'one', 2, 'two', 3, 'three', 99, 'ninety-nine' ];
client.zadd(args, function (err, response) {
    if (err) throw err;
    console.log('added '+response+' items.');

    // -Infinity and +Infinity also work
    var args1 = [ 'myzset', '+inf', '-inf' ];
    client.zrevrangebyscore(args1, function (err, response) {
        if (err) throw err;
        console.log('example1', response);
        // write your code here
    });

    var max = 3, min = 1, offset = 1, count = 2;
    var args2 = [ 'myzset', max, min, 'WITHSCORES', 'LIMIT', offset, count ];
    client.zrevrangebyscore(args2, function (err, response) {
        if (err) throw err;
        console.log('example2', response);
        // write your code here
    });
});

client.quit();

一个错误：

对于像 client.set 或 client.get 这样的简单方法，我没有遇到错误。 node_redis如何使用其他方法？我已经在 Windows OS.

上安装了 redis

Answer 1

我在 ;

上找到了答案

我应该调用 client.quit();在下一个方法中：

var args = [ 'myzset', 1, 'one', 2, 'two', 3, 'three', 99, 'ninety-nine' ];
client.zadd(args, function (err, response) {
    if (err) throw err;
    console.log('added '+response+' items.');

    // -Infinity and +Infinity also work
    var args1 = [ 'myzset', '+inf', '-inf' ];
    client.zrevrangebyscore(args1, function (err, response) {
        if (err) throw err;
        console.log('example1', response);
        // write your code here
    });

    var max = 3, min = 1, offset = 1, count = 2;
    var args2 = [ 'myzset', max, min, 'WITHSCORES', 'LIMIT', offset, count ];
    client.zrevrangebyscore(args2, function (err, response) {
        if (err) throw err;
        console.log('example2', response);
        // write your code here
    });

    client.quit();
});

client.quit();必须在 zadd 方法内部。

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