-
Notifications
You must be signed in to change notification settings - Fork 0
/
redisru-men-zhi-shi-hui-zong.html
341 lines (289 loc) · 17.6 KB
/
redisru-men-zhi-shi-hui-zong.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="author" content="CatsAction" />
<meta property="og:type" content="article" />
<meta name="twitter:card" content="summary">
<meta name="keywords" content="Cache, Non-relational databases, Redis, " />
<meta property="og:title" content="Redis入门知识汇总 "/>
<meta property="og:url" content="./redisru-men-zhi-shi-hui-zong.html" />
<meta property="og:description" content="Redis特点 是一个内存中的数据结构存储系统，支持丰富数据类型。 常用作缓存，可以持久化数据到缓存。 支持简单的消息队列协议，可用作普通的消息队列中间件。 内置Lua脚本支持。 支持事务和LRU事件。 类型与基本命令 Redis支持strings, hashes, lists, sets, sorted sets bitmaps, hyperloglogs, geospatial。 connection命令 1, select切换数据库。 2, ping检测服务。 keys命令 1, keys命令查看目前所有的key。 121:6379[1]> KEYS * (empty list or set) 2, type查看key数据类型。 121:6379[1]> keys * 1) "key4" 2) "key1" 3) "key2" 4) "key3" 121 …" />
<meta property="og:site_name" content="CatsAction's blog" />
<meta property="og:article:author" content="CatsAction" />
<meta property="og:article:published_time" content="2018-05-11T00:00:00+08:00" />
<meta name="twitter:title" content="Redis入门知识汇总 ">
<meta name="twitter:description" content="Redis特点 是一个内存中的数据结构存储系统，支持丰富数据类型。 常用作缓存，可以持久化数据到缓存。 支持简单的消息队列协议，可用作普通的消息队列中间件。 内置Lua脚本支持。 支持事务和LRU事件。 类型与基本命令 Redis支持strings, hashes, lists, sets, sorted sets bitmaps, hyperloglogs, geospatial。 connection命令 1, select切换数据库。 2, ping检测服务。 keys命令 1, keys命令查看目前所有的key。 121:6379[1]> KEYS * (empty list or set) 2, type查看key数据类型。 121:6379[1]> keys * 1) "key4" 2) "key1" 3) "key2" 4) "key3" 121 …">
<title>Redis入门知识汇总 ·
CatsAction's blog
</title>
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet">
<link rel="icon" type="image/x-icon" href="./theme/image/logo.ico" />
<link rel="stylesheet" type="text/css" href="./theme/css/elegant.prod.css" media="screen">
<link rel="stylesheet" type="text/css" href="./theme/css/custom.css" media="screen">
</head>
<body>
<div id="content">
<div class="navbar navbar-static-top">
<div class="navbar-inner">
<div class="container-fluid">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="./"><span class=site-name>CatsAction's blog</span></a>
<div class="nav-collapse collapse">
<ul class="nav pull-right top-menu">
<li >
<a href=
.
>Home</a>
</li>
<li ><a href="./categories.html">Categories</a></li>
<li ><a href="./tags.html">Tags</a></li>
<li ><a href="./archives.html">Archives</a></li>
<li><form class="navbar-search" action="./search.html" onsubmit="return validateForm(this.elements['q'].value);"> <input type="text" class="search-query" placeholder="Search" name="q" id="tipue_search_input"></form></li>
</ul>
</div>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row-fluid">
<div class="span1"></div>
<div class="span10">
<article itemscope>
<div class="row-fluid">
<header class="page-header span10 offset2">
<h1>
<a href="./redisru-men-zhi-shi-hui-zong.html">
Redis入门知识汇总
</a>
</h1>
</header>
</div>
<div class="row-fluid">
<div class="span8 offset2 article-content">
<h4>Redis特点</h4>
<ul>
<li>是一个内存中的数据结构存储系统，支持丰富数据类型。</li>
<li>常用作缓存，可以持久化数据到缓存。</li>
<li>支持简单的消息队列协议，可用作普通的消息队列中间件。</li>
<li>内置Lua脚本支持。</li>
<li>支持事务和LRU事件。</li>
</ul>
<h4>类型与基本命令</h4>
<p>Redis支持strings, hashes, lists, sets, sorted sets bitmaps, hyperloglogs, geospatial。</p>
<h6><em>connection命令</em></h6>
<p>1, select切换数据库。<br>
2, ping检测服务。</p>
<h6><em>keys命令</em></h6>
<p>1, keys命令查看目前所有的key。</p>
<div class="highlight"><pre><span></span><span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">KEYS</span> <span class="o">*</span>
<span class="o">(</span><span class="n">empty</span> <span class="n">list</span> <span class="n">or</span> <span class="kd">set</span><span class="o">)</span>
</pre></div>
<p>2, type查看key数据类型。<br></p>
<div class="highlight"><pre><span></span><span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">keys</span> <span class="o">*</span>
<span class="mi">1</span><span class="o">)</span> <span class="s2">"key4"</span>
<span class="mi">2</span><span class="o">)</span> <span class="s2">"key1"</span>
<span class="mi">3</span><span class="o">)</span> <span class="s2">"key2"</span>
<span class="mi">4</span><span class="o">)</span> <span class="s2">"key3"</span>
<span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">type</span> <span class="n">key1</span>
<span class="n">string</span>
<span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">type</span> <span class="n">key2</span>
<span class="n">list</span>
<span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">type</span> <span class="n">key3</span>
<span class="kd">set</span>
<span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">type</span> <span class="n">key4</span>
<span class="n">hash</span>
</pre></div>
<p>3, del删除指定key。</p>
<div class="highlight"><pre><span></span><span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">keys</span> <span class="o">*</span>
<span class="mi">1</span><span class="o">)</span> <span class="s2">"key4"</span>
<span class="mi">2</span><span class="o">)</span> <span class="s2">"key1"</span>
<span class="mi">3</span><span class="o">)</span> <span class="s2">"key2"</span>
<span class="mi">4</span><span class="o">)</span> <span class="s2">"key3"</span>
<span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">del</span> <span class="n">key1</span>
<span class="o">(</span><span class="n">integer</span><span class="o">)</span> <span class="mi">1</span>
<span class="mi">121</span><span class="o">:</span><span class="mi">6379</span><span class="o">[</span><span class="mi">1</span><span class="o">]></span> <span class="n">keys</span> <span class="o">*</span>
<span class="mi">1</span><span class="o">)</span> <span class="s2">"key4"</span>
<span class="mi">2</span><span class="o">)</span> <span class="s2">"key2"</span>
<span class="mi">3</span><span class="o">)</span> <span class="s2">"key3"</span>
</pre></div>
<p>4, exists检查key是否存在，不存在返回0，存在返回1，多个key某些存在，某些不存在返回2。<br>
5, expire设置超时秒数。<br>
6, ttl返回剩余过期时间秒数。</p>
<h6><em>strings命令</em></h6>
<p>1, set, get命令。<br>
2, incr, decr自增自减，原子操作。</p>
<h6><em>lists命令</em></h6>
<p>1, lpush, lpop, rpush, rpop<br>
2, lrange变量列表</p>
<div class="highlight"><pre><span></span><span class="err">redis> RPUSH mylist "one"</span>
<span class="err">(integer) 1</span>
<span class="err">redis> RPUSH mylist "two"</span>
<span class="err">(integer) 2</span>
<span class="err">redis> RPUSH mylist "three"</span>
<span class="err">(integer) 3</span>
<span class="err">redis> LRANGE mylist 0 0</span>
<span class="err">1) "one"</span>
<span class="err">redis> LRANGE mylist -3 2</span>
<span class="err">1) "one"</span>
<span class="err">2) "two"</span>
<span class="err">3) "three"</span>
<span class="err">redis> LRANGE mylist -100 100</span>
<span class="err">1) "one"</span>
<span class="err">2) "two"</span>
<span class="err">3) "three"</span>
<span class="err">redis> LRANGE mylist 5 10</span>
<span class="err">(empty list or set)</span>
<span class="err">redis> </span>
</pre></div>
<p>3, llen返回lists长度。</p>
<h6><em>sorted sets命令</em></h6>
<p>1, zadd<br>
2, zpopmin, zpopmax<br>
3, zcount<br>
更多命令查看<a href="https://redis.io/commands">Reids命令大全</a></p>
<h4>Redis Pub/Sub（分发和订阅）</h4>
<p>订阅相应channel（频道）的Customer（消费者）都将收到消息，如果Publisher（生产者）往channel分发消息，它不需要知道都有哪些消费者订阅了消息。下面是Pub/Sub最简单的使用。<br>
首先客户端订阅了连个channel。分别是first，second。</p>
<div class="highlight"><pre><span></span><span class="err">127.0.0.1:6379[1]> SUBSCRIBE first second</span>
<span class="err">Reading messages... (press Ctrl-C to quit)</span>
<span class="err">1) "subscribe"</span>
<span class="err">2) "first"</span>
<span class="err">3) (integer) 1</span>
<span class="err">1) "subscribe"</span>
<span class="err">2) "second"</span>
<span class="err">3) (integer) 2</span>
</pre></div>
<p>服务端Publisher分发消息</p>
<div class="highlight"><pre><span></span><span class="err">127.0.0.1:6379> PUBLISH first hello</span>
<span class="err">(integer) 1</span>
<span class="err">127.0.0.1:6379> PUBLISH second "hello redis"</span>
<span class="err">(integer) 1</span>
</pre></div>
<p>客户端将收到如下消息</p>
<div class="highlight"><pre><span></span><span class="err">1) "message"</span>
<span class="err">2) "first"</span>
<span class="err">3) "hello"</span>
<span class="err">1) "message"</span>
<span class="err">2) "second"</span>
<span class="err">3) "hello redis"</span>
</pre></div>
<hr />
<aside>
<nav>
<ul class="articles-timeline">
<li class="previous-article">« <a href="./django-modelyuan-ma-jie-xi-er.html"
title="Previous: Django Model源码解析（二）">Django Model源码解析（二）</a></li>
</ul>
</nav>
</aside>
</div>
<section id="article-sidebar" class="span2">
<h4>Published</h4>
<time itemprop="dateCreated" datetime="2018-05-11T00:00:00+08:00"> 5
11, 2018</time>
<!---->
<h4>Category</h4>
<a class="category-link"
href="./categories.html#redis-ref">Redis</a>
<h4>Tags</h4>
<ul class="list-of-tags tags-in-article">
<li><a href="./tags.html#cache-ref">Cache
<span>1</span>
</a></li>
<li><a href="./tags.html#non-relational-databases-ref">Non-relational databases
<span>1</span>
</a></li>
</ul>
<h4>Stay in Touch</h4>
<div id="sidebar-social-link">
<a href="mailto:[email protected]" title="My Email Address" target="_blank" rel="nofollow noopener noreferrer">
<svg xmlns="http://www.w3.org/2000/svg" aria-label="Mail" role="img" viewBox="0 0 512 512"><rect width="512" height="512" rx="15%" fill="#328cff"/><path d="m250 186c-46 0-69 35-69 74 0 44 29 72 68 72 43 0 73-32 73-75 0-44-34-71-72-71zm-1-37c30 0 57 13 77 33 0-22 35-22 35 1v150c-1 10 10 16 16 9 25-25 54-128-14-187-64-56-149-47-195-15-48 33-79 107-49 175 33 76 126 99 182 76 28-12 41 26 12 39-45 19-168 17-225-82-38-68-36-185 67-248 78-46 182-33 244 32 66 69 62 197-2 246-28 23-71 1-71-32v-11c-20 20-47 32-77 32-57 0-108-51-108-108 0-58 51-110 108-110" fill="#fff"/></svg>
</a>
<a href="https://github.com/boyaziqi" title="catsaction Github Repository" target="_blank" rel="nofollow noopener noreferrer">
<svg xmlns="http://www.w3.org/2000/svg" aria-label="GitHub" role="img" viewBox="0 0 512 512"><rect width="512" height="512" rx="15%" fill="#1B1817"/><path fill="#fff" d="M335 499c14 0 12 17 12 17H165s-2-17 12-17c13 0 16-6 16-12l-1-50c-71 16-86-28-86-28-12-30-28-37-28-37-24-16 1-16 1-16 26 2 40 26 40 26 22 39 59 28 74 22 2-17 9-28 16-35-57-6-116-28-116-126 0-28 10-51 26-69-3-6-11-32 3-67 0 0 21-7 70 26 42-12 86-12 128 0 49-33 70-26 70-26 14 35 6 61 3 67 16 18 26 41 26 69 0 98-60 120-117 126 10 8 18 24 18 48l-1 70c0 6 3 12 16 12z"/></svg>
</a>
<a href="https://www.linkedin.com/feed/" title="My LinkedIn" target="_blank" rel="nofollow noopener noreferrer">
<svg xmlns="http://www.w3.org/2000/svg" aria-label="LinkedIn" role="img" viewBox="0 0 512 512" fill="#fff"><rect width="512" height="512" rx="15%" fill="#0077b5"/><circle cx="142" cy="138" r="37"/><path stroke="#fff" stroke-width="66" d="M244 194v198M142 194v198"/><path d="M276 282c0-20 13-40 36-40 24 0 33 18 33 45v105h66V279c0-61-32-89-76-89-34 0-51 19-59 32"/></svg>
</a>
</div>
<h4>Friendship Links</h4>
<ul class="list-of-tags tags-in-article">
<li>
<a href="https://leetcode-cn.com/" title="力扣中国站点" target="_blank" rel="nofollow noopener noreferrer">
LeetCode
</a>
</li>
<li>
<a href="https://coolshell.cn/about" title="陈皓酷壳" target="_blank" rel="nofollow noopener noreferrer">
CoolShell
</a>
</li>
<li>
<a href="https://yikun.github.io/" title="姜毅坤博客" target="_blank" rel="nofollow noopener noreferrer">
Yikun
</a>
</li>
<li>
<a href="https://www.nowcoder.com/" title="牛客网" target="_blank" rel="nofollow noopener noreferrer">
牛客网
</a>
</li>
</ul>
</section>
</div>
</article>
</div>
<div class="span1"></div>
</div>
</div>
</div>
<footer>
<div>
<span class="site-name">CatsAction's blog</span> - It's a wonderful world
</div>
<div id="fpowered">
Powered by: <a href="http://getpelican.com/" title="Pelican Home Page" target="_blank" rel="nofollow noopener noreferrer">Pelican</a>
Theme: <a href="https://elegant.oncrashreboot.com/" title="Theme Elegant Home Page" target="_blank" rel="nofollow noopener noreferrer">Elegant</a>
</div>
</footer> <script src="//code.jquery.com/jquery.min.js"></script>
<script src="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
<script>
function validateForm(query)
{
return (query.length > 0);
}
</script>
<script>
(function () {
if (window.location.hash.match(/^#comment-\d+$/)) {
$('#comment_thread').collapse('show');
}
})();
window.onhashchange=function(){
if (window.location.hash.match(/^#comment-\d+$/))
window.location.reload(true);
}
$('#comment_thread').on('shown', function () {
var link = document.getElementById('comment-accordion-toggle');
var old_innerHTML = link.innerHTML;
$(link).fadeOut(200, function() {
$(this).text('Click here to hide comments').fadeIn(200);
});
$('#comment_thread').on('hidden', function () {
$(link).fadeOut(200, function() {
$(this).text(old_innerHTML).fadeIn(200);
});
})
})
</script>
</body>
<!-- Theme: Elegant built for Pelican
License : MIT -->
</html>