{"id":262,"date":"2023-02-24T06:18:50","date_gmt":"2023-02-23T22:18:50","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=262"},"modified":"2023-04-30T15:17:48","modified_gmt":"2023-04-30T07:17:48","slug":"redis-transaction","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/02\/24\/redis-transaction\/","title":{"rendered":"Redis \u4e8b\u52a1"},"content":{"rendered":"<p>Redis \u4e8b\u52a1\u53ef\u4ee5\u4e00\u6b21\u6267\u884c\u591a\u4e2a\u547d\u4ee4\uff0c\u5e76\u4e14\u5e26\u6709\u4ee5\u4e0b\u4e09\u4e2a\u91cd\u8981\u7684\u4fdd\u8bc1\uff1a<\/p>\n<ul>\n<li>\u6279\u91cf\u64cd\u4f5c\u5728\u53d1\u9001 EXEC \u547d\u4ee4\u524d\u88ab\u653e\u5165\u961f\u5217\u7f13\u5b58<\/li>\n<li>\u6536\u5230 EXEC \u547d\u4ee4\u540e\u8fdb\u5165\u4e8b\u52a1\u6267\u884c\uff0c\u4e8b\u52a1\u4e2d\u4efb\u610f\u547d\u4ee4\u6267\u884c\u5931\u8d25\uff0c\u5176\u4f59\u7684\u547d\u4ee4\u4f9d\u7136\u88ab\u6267\u884c<\/li>\n<li>\u5728\u4e8b\u52a1\u6267\u884c\u8fc7\u7a0b\uff0c\u5176\u4ed6\u5ba2\u6237\u7aef\u63d0\u4ea4\u7684\u547d\u4ee4\u8bf7\u6c42\u4e0d\u4f1a\u63d2\u5165\u5230\u4e8b\u52a1\u6267\u884c\u547d\u4ee4\u5e8f\u5217\u4e2d<\/li>\n<\/ul>\n<p><!-- more --><\/p>\n<p>\u4e00\u4e2a\u4e8b\u52a1\u4ece\u5f00\u59cb\u5230\u6267\u884c\u4f1a\u7ecf\u5386\u4ee5\u4e0b\u4e09\u4e2a\u9636\u6bb5\uff1a<\/p>\n<ul>\n<li>\u5f00\u59cb\u4e8b\u52a1<\/li>\n<li>\u547d\u4ee4\u5165\u961f<\/li>\n<li>\u6267\u884c\u4e8b\u52a1<\/li>\n<\/ul>\n<h2>\u5b9e\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4e8b\u52a1\u7684\u4f8b\u5b50\uff0c\u5b83\u5148\u4ee5<code>MULTI<\/code>\u5f00\u59cb\u4e00\u4e2a\u4e8b\u52a1\uff0c\u7136\u540e\u5c06\u591a\u4e2a\u547d\u4ee4\u5165\u961f\u5230\u4e8b\u52a1\u4e2d\uff0c\u6700\u540e\u7531<code>EXEC<\/code>\u547d\u4ee4\u89e6\u53d1\u4e8b\u52a1\uff0c\u4e00\u5e76\u6267\u884c\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\uff1a<\/p>\n<pre><code class=\"language-bash\">redis 127.0.0.1:6379&gt; MULTI\nOK\n\nredis 127.0.0.1:6379&gt; SET book-name &quot;Mastering C++ in 21 days&quot;\nQUEUED\n\nredis 127.0.0.1:6379&gt; GET book-name\nQUEUED\n\nredis 127.0.0.1:6379&gt; SADD tag &quot;C++&quot; &quot;Programming&quot; &quot;Mastering Series&quot;\nQUEUED\n\nredis 127.0.0.1:6379&gt; SMEMBERS tag\nQUEUED\n\nredis 127.0.0.1:6379&gt; EXEC\n1) OK\n2) &quot;Mastering C++ in 21 days&quot;\n3) (integer) 3\n4) 1) &quot;Mastering Series&quot;\n   2) &quot;C++&quot;\n   3) &quot;Programming&quot;<\/code><\/pre>\n<p><strong>\u5355\u4e2a Redis \u547d\u4ee4\u7684\u6267\u884c\u662f\u539f\u5b50\u6027\u7684\uff0c\u4f46 Redis \u6ca1\u6709\u5728\u4e8b\u52a1\u4e0a\u589e\u52a0\u4efb\u4f55\u7ef4\u6301\u539f\u5b50\u6027\u7684\u673a\u5236\uff0c\u6240\u4ee5 Redis \u4e8b\u52a1\u7684\u6267\u884c\u5e76\u4e0d\u662f\u539f\u5b50\u6027\u7684<\/strong>\u3002<\/p>\n<p>\u4e8b\u52a1\u53ef\u4ee5\u7406\u89e3\u4e3a\u4e00\u4e2a\u6253\u5305\u7684\u6279\u91cf\u6267\u884c\u811a\u672c\uff0c\u4f46\u6279\u91cf\u6307\u4ee4\u5e76\u975e\u539f\u5b50\u5316\u7684\u64cd\u4f5c\uff0c\u4e2d\u95f4\u67d0\u6761\u6307\u4ee4\u7684\u5931\u8d25\u4e0d\u4f1a\u5bfc\u81f4\u524d\u9762\u5df2\u505a\u6307\u4ee4\u7684\u56de\u6eda\uff0c\u4e5f\u4e0d\u4f1a\u9020\u6210\u540e\u7eed\u7684\u6307\u4ee4\u4e0d\u505a\u3002<\/p>\n<blockquote>\n<p>\u8fd9\u662f\u5b98\u7f51\u4e0a\u7684\u8bf4\u660e From redis docs on <a target=\"_blank\" rel=\"noopener\" href=\"http:\/\/redis.io\/topics\/transactions\" title=\"transactions\">transactions<\/a>:<br \/>\nIt&#8217;s important to note that even when a command fails, all the other commands in the queue are processed \u2013 Redis will not stop the processing of commands.<\/p>\n<\/blockquote>\n<p>\u6bd4\u5982\uff1a<\/p>\n<pre><code class=\"language-bash\">redis 127.0.0.1:7000&gt; multi\nOK\nredis 127.0.0.1:7000&gt; set a aaa\nQUEUED\nredis 127.0.0.1:7000&gt; set b bbb\nQUEUED\nredis 127.0.0.1:7000&gt; set c ccc\nQUEUED\nredis 127.0.0.1:7000&gt; exec\n1) OK\n2) OK\n3) OK<\/code><\/pre>\n<p>\u5982\u679c\u5728 set b bbb \u5904\u5931\u8d25\uff0cset a \u5df2\u6210\u529f\u4e0d\u4f1a\u56de\u6eda\uff0cset c \u8fd8\u4f1a\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<h2>Redis \u4e8b\u52a1\u547d\u4ee4<\/h2>\n<h3>DISCARD<\/h3>\n<p>\u53d6\u6d88\u4e8b\u52a1\uff0c\u653e\u5f03\u6267\u884c\u4e8b\u52a1\u5757\u5185\u7684\u6240\u6709\u547d\u4ee4<\/p>\n<pre><code class=\"language-bash\">redis 127.0.0.1:6379&gt; MULTI\nOK\n\nredis 127.0.0.1:6379&gt; PING\nQUEUED\n\nredis 127.0.0.1:6379&gt; SET greeting &quot;hello&quot;\nQUEUED\n\nredis 127.0.0.1:6379&gt; DISCARD\nOK<\/code><\/pre>\n<h3>EXEC<\/h3>\n<p>\u6267\u884c\u6240\u6709\u4e8b\u52a1\u5757\u5185\u7684\u547d\u4ee4<\/p>\n<p>\u4e8b\u52a1\u5757\u5185\u6240\u6709\u547d\u4ee4\u7684\u8fd4\u56de\u503c\uff0c\u6309\u547d\u4ee4\u6267\u884c\u7684\u5148\u540e\u987a\u5e8f\u6392\u5217\u3002\u5f53\u64cd\u4f5c\u88ab\u6253\u65ad\u65f6\uff0c\u8fd4\u56de\u7a7a\u503c nil<\/p>\n<pre><code class=\"language-bash\"># \u4e8b\u52a1\u88ab\u6210\u529f\u6267\u884c\n\nredis 127.0.0.1:6379&gt; MULTI\nOK\n\nredis 127.0.0.1:6379&gt; INCR user_id\nQUEUED\n\nredis 127.0.0.1:6379&gt; INCR user_id\nQUEUED\n\nredis 127.0.0.1:6379&gt; INCR user_id\nQUEUED\n\nredis 127.0.0.1:6379&gt; PING\nQUEUED\n\nredis 127.0.0.1:6379&gt; EXEC\n1) (integer) 1\n2) (integer) 2\n3) (integer) 3\n4) PONG\n\n# \u76d1\u89c6 key\uff0c\u4e14\u4e8b\u52a1\u6210\u529f\u6267\u884c\n\nredis 127.0.0.1:6379&gt; WATCH lock lock_times\nOK\n\nredis 127.0.0.1:6379&gt; MULTI\nOK\n\nredis 127.0.0.1:6379&gt; SET lock &quot;huangz&quot;\nQUEUED\n\nredis 127.0.0.1:6379&gt; INCR lock_times\nQUEUED\n\nredis 127.0.0.1:6379&gt; EXEC\n1) OK\n2) (integer) 1\n\n# \u76d1\u89c6 key \uff0c\u4e14\u4e8b\u52a1\u88ab\u6253\u65ad\n\nredis 127.0.0.1:6379&gt; WATCH lock lock_times\nOK\n\nredis 127.0.0.1:6379&gt; MULTI\nOK\n\nredis 127.0.0.1:6379&gt; SET lock &quot;joe&quot;        # \u5c31\u5728\u8fd9\u65f6\uff0c\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u4fee\u6539\u4e86 lock_times \u7684\u503c\nQUEUED\n\nredis 127.0.0.1:6379&gt; INCR lock_times\nQUEUED\n\nredis 127.0.0.1:6379&gt; EXEC                  # \u56e0\u4e3a lock_times \u88ab\u4fee\u6539\uff0cjoe \u7684\u4e8b\u52a1\u6267\u884c\u5931\u8d25\n(nil)<\/code><\/pre>\n<h3>MULTI<\/h3>\n<p>\u6807\u8bb0\u4e00\u4e2a\u4e8b\u52a1\u5757\u7684\u5f00\u59cb<\/p>\n<pre><code class=\"language-bash\">redis 127.0.0.1:6379&gt; MULTI            # \u6807\u8bb0\u4e8b\u52a1\u5f00\u59cb\nOK\n\nredis 127.0.0.1:6379&gt; INCR user_id     # \u591a\u6761\u547d\u4ee4\u6309\u987a\u5e8f\u5165\u961f\nQUEUED\n\nredis 127.0.0.1:6379&gt; INCR user_id\nQUEUED\n\nredis 127.0.0.1:6379&gt; INCR user_id\nQUEUED\n\nredis 127.0.0.1:6379&gt; PING\nQUEUED\n\nredis 127.0.0.1:6379&gt; EXEC             # \u6267\u884c\n1) (integer) 1\n2) (integer) 2\n3) (integer) 3\n4) PONG<\/code><\/pre>\n<h3>UNWATCH<\/h3>\n<p>\u53d6\u6d88 WATCH \u547d\u4ee4\u5bf9\u6240\u6709 key \u7684\u76d1\u89c6<\/p>\n<pre><code class=\"language-bash\">redis 127.0.0.1:6379&gt; WATCH lock lock_times\nOK\n\nredis 127.0.0.1:6379&gt; UNWATCH\nOK<\/code><\/pre>\n<h3>WATCH key [key &#8230;]<\/h3>\n<p>\u76d1\u89c6\u4e00\u4e2a(\u6216\u591a\u4e2a) key\uff0c\u5982\u679c\u5728\u4e8b\u52a1\u6267\u884c\u4e4b\u524d\u8fd9\u4e2a(\u6216\u8fd9\u4e9b) key \u88ab\u5176\u4ed6\u547d\u4ee4\u6240\u6539\u52a8\uff0c\u90a3\u4e48\u4e8b\u52a1\u5c06\u88ab\u6253\u65ad<\/p>\n<pre><code class=\"language-bash\">redis&gt; WATCH lock lock_times\nOK<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u4e8b\u52a1\u53ef\u4ee5\u4e00\u6b21\u6267\u884c\u591a\u4e2a\u547d\u4ee4\uff0c\u5e76\u4e14\u5e26\u6709\u4ee5\u4e0b\u4e09\u4e2a\u91cd\u8981\u7684\u4fdd\u8bc1\uff1a \u6279\u91cf\u64cd\u4f5c\u5728\u53d1\u9001 EXEC \u547d\u4ee4\u524d\u88ab\u653e\u5165\u961f\u5217 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[87],"class_list":["post-262","post","type-post","status-publish","format-standard","hentry","category-redis","tag-87"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=262"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/262\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}