blocks|key|2005954|text|你不能从浏览器中运行的JavaScript直接连接到Redis，因为Redis不会说HTTP。你能做的就是把webdis放在Redis前面，这样就可以通过一个HTTP接口使用Redis实例了。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2005955|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/nicolasff/webdis^0|1I|6|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can't connect directly to Redis from JavaScript running in a browser because Redis does not speak HTTP. What you can do is put <a href="https://github.com/nicolasff/webdis" rel="noreferrer">webdis</a> in front of Redis, it makes it possible work with a Redis instance over a HTTP interface.

blocks|key|2349558|text|你可以通过http连接到redis服务器，基于此有一个安全漏洞。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2349559|HTTP+Redis是一个有效的|2349560|服务器--+http://benmmurphy.github.io/blog/2015/06/04/redis-eval-lua-sandbox-escape/|blockquote|offset|length|2349561|2349562|2349563|也许这可以用来为redis做一个javascript客户端？在所示的示例中，命令被直接发送到执行这些命令的redis服务器。然而，实际上，你可以在redis前面使用openresty%2Bnginx，通过http直接与redis对话，并获得nginx的多线程服务器的性能优势，它将与redis本身共享有限的连接。|2349564|entityMap|0|LINK|mutability|MUTABLE|url|http://benmmurphy.github.io/blog/2015/06/04/redis-eval-lua-sandbox-escape/^0|0|0|6|22|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@$G|X|H|Y|1|Z]]|A|$]]|$1|I|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

You can literally connect to the redis server over http, and there's a security exploit based on this.

<blockquote>
 Redis is effectively a HTTP server
 -- <a href="http://benmmurphy.github.io/blog/2015/06/04/redis-eval-lua-sandbox-escape/" rel="nofollow">http://benmmurphy.github.io/blog/2015/06/04/redis-eval-lua-sandbox-escape/</a>
</blockquote>

Maybe this could be used to make a javascript client for redis? In the examples shown, commands are sent directly to the redis server, which executes them. However, practically speaking, you can use openresty+nginx in front of redis to essentially directly talk to redis over http, and get the performance benefit of nginx's multithreaded server which will share a limited set of connections to redis itself.

blocks|key|2006046|text|与在redis前面使用NGINX服务器相比，Webdis非常非常慢。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2006047|如果你只是在mod-perl中实现一个简单的redis客户端，并在nginx后面公开，你可以很容易地获得非常好的性能。你也可以处理很多逻辑|2006048|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Webdis is very very slow as compared to using an NGINX server in front of redis 

If you just implement a simple redis client in mod-perl and expose behind nginx, you can easily get very good performance. And you can handle a lot of logic too

blocks|key|385745|text|正如@Theo解释的那样，你不能直接连接，但是如果你设置了webdis和redis，那么我有一个库，它可以消除你自己对ajax的浪费，支持基于promises的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|385746|webdismay是我最近发布的用于从浏览器连接到webdis%2Bredis后端的JS库(许可代码:+MIT)。它采用ES6+Promises方法与redis%2Bwebdis后端通信，为泛型和无键的redis命令提供functions，并为在Keys/Strings、Lists、Hash和Sets上操作的命令组织类。所有函数/方法都返回ES6+Promise。|offset|length|385747|假设你已经用redis设置了webdis，在默认配置中接受对"/“的post请求，然后用webdismay将数据发送到服务器，然后在浏览器上获取数据的简单示例如下所示(在ES6中)：|385748|import+'whatwg-fetch';++//+fetch+polyfill
import+*+as+W+from+'webdismay';
const+k+=+W.key('some-redis-key');
k.set('Hello,+World!');++//+store+the+information
//+wait+a+while,+e.g.+in+the+dev+console+or+with+setTimeout()
k.get().then((v)=>console.log(v));++//+-->+Hello,+World!|code-block|syntax|javascript|385749|在我写这篇文章的时候(2016年7月)，前两行import需要jspm或browserify等工具的一些转换和打包帮助(如果您将import更改为require)。|style|CODE|385750|这对初学者来说还不是很友好，但可以让人们在浏览器中使用webdis%2Bredis，而不需要在javascript和redis之间不断地转换，也不需要编写自己的ajax。|385751|entityMap|0|LINK|mutability|MUTABLE|url|http://npmjs.com/package/webdismay|1|https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/|2|https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~Key.html|3|https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~List.html|4|https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~Hash.html|5|https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~Rset.html^0|0|0|9|0|2Y|9|1|3B|C|2|3O|5|3|3U|4|4|3Z|4|5|0|0|0|N|6|1S|6|21|7|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1B|8|@]|9|@$D|1C|E|1D|1|1E]|$D|1F|E|1G|1|1H]|$D|1I|E|1J|1|1K]|$D|1L|E|1M|1|1N]|$D|1O|E|1P|1|1Q]|$D|1R|E|1S|1|1T]]|A|$]]|$1|F|3|G|5|6|7|1U|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|1V|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1W|8|@$D|1X|E|1Y|O|P]|$D|1Z|E|20|O|P]|$D|21|E|22|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|23|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|24|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]|10|$5|V|W|X|A|$Y|11]]|12|$5|V|W|X|A|$Y|13]]|14|$5|V|W|X|A|$Y|15]]|16|$5|V|W|X|A|$Y|17]]|18|$5|V|W|X|A|$Y|19]]]]

As @Theo explained, you can't connect directly, but if you have webdis and redis set up then I have a library that eliminates mucking around with ajax yourself, in favor of a promises based approach.

<a href="http://npmjs.com/package/webdismay" rel="nofollow">webdismay</a> is a JS library I have recently released (License: MIT) to connect to a webdis+redis backend from the browser. It takes an ES6 Promises approach to communicating with the redis+webdis back end, providing <a href="https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/" rel="nofollow">functions</a> for generic and keyless redis commands and organized classes for commands that operate on <a href="https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~Key.html" rel="nofollow">Keys/Strings</a>, <a href="https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~List.html" rel="nofollow">Lists</a>, <a href="https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~Hash.html" rel="nofollow">Hash</a> and <a href="https://doc.esdoc.org/github.com/DrPaulBrewer/webdismay/class/src/index.js~Rset.html" rel="nofollow">Sets</a>. All functions/methods return ES6 Promises. 

Assuming you have webdis set up with redis, in the default configuration to accept post requests to "/", then with webdismay a simple example of sending data to the server and getting it back later would look like this on the browser (in ES6):

<pre><code>import 'whatwg-fetch'; // fetch polyfill
import * as W from 'webdismay';
const k = W.key('some-redis-key');
k.set('Hello, World!'); // store the information
// wait a while, e.g. in the dev console or with setTimeout()
k.get().then((v)=&gt;console.log(v)); // --&gt; Hello, World!
</code></pre>

At the time I am writing this (July 2016), the first two <code>import</code> lines require some translation and packaging assistance from tools like jspm or browserify (if you change the <code>import</code> to <code>require</code>). 

This is not exactly beginner-friendly, yet, but could allow someone to use webdis+redis from the browser without constantly translating mentally between javascript idioms and redis and writing their own ajax.

I know there are node.js libraries for Redis; what I'd like to do is run a Redis server (either on localhost or on a server host somewhere) and call it directly via HTTP (i.e. AJAX or HTTP GET as needed) from JavaScript running inside a browser (i.e. a Greasemonkey or Chrome Extension script, or maybe a bookmarklet or SCRIPT tag). Does Redis have a native REST or HTTP API?

Can I connect directly to a Redis server from JavaScript running in a browser?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋 

腾讯云代码助手

CODING DevOps

Cloud Studio

SDK中心

API中心

命令行工具

我知道有适用于Redis的node.js库；我想做的是运行一个Redis服务器(无论是在本地主机上还是在某处的服务器主机上)，并从运行在浏览器内的JavaScript (即Greasemonkey或Chrome扩展脚本，或者可能是书签小程序或脚本标记)中通过HTTP (如AJAX或HTTP GET )直接调用它。Redis有原生REST或HTTP API吗？

问我可以从浏览器中运行的JavaScript直接连接到Redis服务器吗？
EN

回答 4

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问我可以从浏览器中运行的JavaScript直接连接到Redis服务器吗？EN

回答 4

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问我可以从浏览器中运行的JavaScript直接连接到Redis服务器吗？
EN