{"id":5822,"date":"2024-11-14T10:10:00","date_gmt":"2024-11-14T02:10:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5822\/"},"modified":"2024-11-14T10:10:00","modified_gmt":"2024-11-14T02:10:00","slug":"redis%e6%80%8e%e4%b9%88%e8%af%bb%e5%8f%96%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5822\/","title":{"rendered":"redis\u600e\u4e48\u8bfb\u53d6\u6570\u636e\u5e93"},"content":{"rendered":"<p><strong>\u5982\u4f55\u901a\u8fc7  \u8bfb\u53d6\u6570\u636e\u5e93<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u8fde\u63a5\u5230\u6570\u636e\u5e93<\/strong><\/p>\n<p>Redis \u63d0\u4f9b\u4e86 EVAL \u547d\u4ee4\uff0c\u5141\u8bb8\u5728 Redis \u670d\u52a1\u5668\u4e0a\u76f4\u63a5\u6267\u884c Lua \u811a\u672c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u8be5\u811a\u672c\u8fde\u63a5\u5230\u6570\u636e\u5e93\u5e76\u6267\u884c\u67e5\u8be2\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>local redis = require(\"redis\")\nlocal db = redis.connect(\"host\", \"port\")\n\nlocal results = db:query(\"SELECT * FROM table\")\n\nfor _, row in ipairs(results) do\n  print(table.concat(row, \", \"))\nend<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Redis Pub\/Sub<\/strong><\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u53d1\u5e03\/\u8ba2\u9605\u529f\u80fd\u6765\u4ece\u6570\u636e\u5e93\u63a5\u6536\u6570\u636e\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u8ba2\u9605\u4e00\u4e2a\u9891\u9053\uff0c\u8be5\u9891\u9053\u5c06\u7531\u6570\u636e\u5e93\u7528\u6765\u53d1\u5e03\u67e5\u8be2\u7ed3\u679c\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u5728\u53e6\u4e00\u4e2a Redis \u5ba2\u6237\u7aef\u4e2d\u53d1\u5e03\u4e00\u6761\u6d88\u606f\uff0c\u544a\u8bc9\u6570\u636e\u5e93\u6267\u884c\u67e5\u8be2\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\n<p>\u5728\u6570\u636e\u5e93\u4e2d\uff1a<\/p>\n<pre>SET channel:query_results my_query<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<li>\n<p>\u5728 Redis \u5ba2\u6237\u7aef\u4e2d\uff1a<\/p>\n<pre>redis.publish(\"query\", \"SELECT * FROM table\")<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>\u4f7f\u7528 Redis Streams<\/strong><\/p>\n<p>Redis Streams \u662f\u4e00\u4e2a\u4e13\u95e8\u7528\u4e8e\u5904\u7406\u6570\u636e\u6d41\u7684\u6570\u636e\u7ed3\u6784\u3002\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u6761\u6d41\u5e76\u5c06\u5176\u7528\u4e8e\u4ece\u6570\u636e\u5e93\u63a5\u6536\u6570\u636e\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6d41\uff1a<\/p>\n<pre>XADD mystream * \"query_results\" my_query<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 XREAD \u547d\u4ee4\u4ece\u6d41\u4e2d\u8bfb\u53d6\u6570\u636e\uff1a<\/p>\n<pre>redis.xread({\"mystream\"}, {\"0\"}, {\"COUNT\", 1})<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u76f4\u63a5\u8fde\u63a5\u5230\u6570\u636e\u5e93\u5bf9 Redis \u670d\u52a1\u5668\u7684\u6027\u80fd\u6709\u5f71\u54cd\u3002<\/li>\n<li>Pub\/Sub \u548c Streams \u66f4\u52a0\u9ad8\u6548\uff0c\u4f46\u5b83\u4eec\u9700\u8981\u989d\u5916\u7684\u914d\u7f6e\u548c\u7ba1\u7406\u3002<\/li>\n<li>\u60a8\u9700\u8981\u786e\u4fdd\u6570\u636e\u5e93\u53ef\u4ee5\u88ab Redis \u670d\u52a1\u5668\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u8bfb\u53d6\u6570\u636e\u5e93\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u901a\u8fc7 \u8bfb\u53d6\u6570\u636e\u5e93 \u76f4\u63a5\u8fde\u63a5\u5230\u6570\u636e\u5e93 Redis \u63d0\u4f9b\u4e86 EVAL \u547d\u4ee4\uff0c\u5141\u8bb8\u5728 Redis \u670d\u52a1\u5668\u4e0a\u76f4\u63a5\u6267\u884c Lua \u811a\u672c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u8be5\u811a\u672c\u8fde\u63a5\u5230\u6570\u636e\u5e93\u5e76\u6267\u884c\u67e5\u8be2\u3002\u4f8b\u5982\uff1a local redis = require(&#8220;redis&#8221;) local db = redis.connect(&#8220;host&#8221;, &#8220;port&#8221;) local results = db:query(&#8220;SELECT * FROM table&#8221;) for _, row in ipairs(results) do print(table.concat(row, &#8220;, &#8220;)) end \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Redis Pub\/Sub \u60a8\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u53d1\u5e03\/\u8ba2\u9605\u529f\u80fd\u6765\u4ece\u6570\u636e\u5e93\u63a5\u6536\u6570\u636e\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u8ba2\u9605\u4e00\u4e2a\u9891\u9053\uff0c\u8be5\u9891\u9053\u5c06\u7531\u6570\u636e\u5e93\u7528\u6765\u53d1\u5e03\u67e5\u8be2\u7ed3\u679c\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u5728\u53e6\u4e00\u4e2a Redis \u5ba2\u6237\u7aef\u4e2d\u53d1\u5e03\u4e00\u6761\u6d88\u606f\uff0c\u544a\u8bc9\u6570\u636e\u5e93\u6267\u884c\u67e5\u8be2\u3002\u4f8b\u5982\uff1a \u5728\u6570\u636e\u5e93\u4e2d\uff1a SET channel:query_results my_query \u767b\u5f55\u540e\u590d\u5236 \u5728 Redis \u5ba2\u6237\u7aef\u4e2d\uff1a redis.publish(&#8220;query&#8221;, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5822","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5822"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5822\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}