{"id":97654,"date":"2024-10-20T19:49:20","date_gmt":"2024-10-20T11:49:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97654\/"},"modified":"2024-10-20T19:49:20","modified_gmt":"2024-10-20T11:49:20","slug":"redisdb%e5%af%a6%e7%8f%be%e5%9f%ba%e6%96%bc%e8%99%9f%e6%ae%b5%e7%9a%84%e7%99%bc%e8%99%9f%e5%99%a8%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97654\/","title":{"rendered":"Redis+DB\u5be6\u73fe\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u539f\u7406"},"content":{"rendered":"<h1 id=\"redisdb%e5%af%a6%e7%8f%be%e5%9f%ba%e6%96%bc%e8%99%9f%e6%ae%b5%e7%9a%84%e7%99%bc%e8%99%9f%e5%99%a8%e5%8e%9f%e7%90%86-NjOwAenfiu\">Redis+DB\u5be6\u73fe\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u539f\u7406<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u552f\u4e00\u6a19\u8b58\u7b26\uff08ID\uff09\u7684\u751f\u6210\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u9ad8\u6548\u4e14\u53ef\u64f4\u5c55\u7684\u7cfb\u7d71\u4e2d\u3002\u50b3\u7d71\u7684\u81ea\u589eID\u65b9\u6cd5\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e0b\u53ef\u80fd\u6703\u6210\u70ba\u74f6\u9838\uff0c\u56e0\u6b64\uff0c\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u6210\u70ba\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u548c\u6578\u64da\u5eab\uff08DB\uff09\u4f86\u5be6\u73fe\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u539f\u7406\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%96%bc%e8%99%9f%e6%ae%b5%e7%9a%84%e7%99%bc%e8%99%9f%e5%99%a8%e6%a6%82%e8%bf%b0-NjOwAenfiu\">\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u6982\u8ff0<\/h2>\n<p>\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u4e3b\u8981\u662f\u901a\u904e\u9810\u5148\u5206\u914d\u4e00\u6bb5ID\u7bc4\u570d\u4f86\u5be6\u73feID\u7684\u751f\u6210\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\u5728\u65bc\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u983b\u7e41\u8a2a\u554f\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002\u5177\u9ad4\u4f86\u8aaa\uff0c\u767c\u865f\u5668\u6703\u5728Redis\u4e2d\u5b58\u5132\u7576\u524d\u53ef\u7528\u7684ID\u7bc4\u570d\uff0c\u4e26\u5728\u9700\u8981\u6642\u5f9e\u9019\u500b\u7bc4\u570d\u4e2d\u5206\u914dID\u3002<\/p>\n<h2 id=\"%e7%b3%bb%e7%b5%b1%e6%9e%b6%e6%a7%8b-NjOwAenfiu\">\u7cfb\u7d71\u67b6\u69cb<\/h2>\n<p>\u4e00\u500b\u5178\u578b\u7684\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u7cfb\u7d71\u67b6\u69cb\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>Redis\uff1a\u7528\u65bc\u5b58\u5132\u7576\u524d\u7684ID\u7bc4\u570d\u548c\u5df2\u5206\u914d\u7684ID\u3002<\/li>\n<li>\u6578\u64da\u5eab\uff1a\u7528\u65bc\u6301\u4e45\u5316\u5b58\u5132\u5df2\u5206\u914d\u7684ID\u548c\u76f8\u95dc\u6578\u64da\u3002<\/li>\n<li>\u61c9\u7528\u670d\u52d9\u5668\uff1a\u8ca0\u8cac\u8655\u7406ID\u8acb\u6c42\u4e26\u8207Redis\u548c\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e7%8f%be%e6%ad%a5%e9%a9%9f-NjOwAenfiu\">\u5be6\u73fe\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e8%a8%ad%e5%ae%9aid%e7%af%84%e5%9c%8d-NjOwAenfiu\">1. \u8a2d\u5b9aID\u7bc4\u570d<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5728Redis\u4e2d\u8a2d\u5b9a\u4e00\u500bID\u7bc4\u570d\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4e00\u500b\u7c21\u55ae\u7684\u9375\u503c\u5c0d\u4f86\u5be6\u73fe\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>SET id_range 1000<\/code><\/pre>\n<p>\u9019\u8868\u793a\u6211\u5011\u5e0c\u671b\u6bcf\u6b21\u5206\u914d1000\u500bID\u3002<\/p>\n<h3 id=\"2-%e7%8d%b2%e5%8f%96id%e7%af%84%e5%9c%8d-NjOwAenfiu\">2. \u7372\u53d6ID\u7bc4\u570d<\/h3>\n<p>\u7576\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u751f\u6210\u65b0\u7684ID\u6642\uff0c\u5b83\u6703\u9996\u5148\u6aa2\u67e5Redis\u4e2d\u662f\u5426\u6709\u53ef\u7528\u7684ID\u7bc4\u570d\u3002\u5982\u679c\u6c92\u6709\uff0c\u5247\u9700\u8981\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u65b0\u7684\u7bc4\u570d\u4e26\u66f4\u65b0Redis\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>\ndef get_id_range():\n    current_range = redis.get(\"id_range\")\n    if current_range is None:\n        # \u5f9e\u6578\u64da\u5eab\u7372\u53d6\u65b0\u7684\u7bc4\u570d\n        new_range = fetch_from_db()\n        redis.set(\"id_range\", new_range)\n        return new_range\n    return current_range\n<\/code><\/pre>\n<h3 id=\"3-%e5%88%86%e9%85%8did-NjOwAenfiu\">3. \u5206\u914dID<\/h3>\n<p>\u4e00\u65e6\u7372\u53d6\u4e86ID\u7bc4\u570d\uff0c\u61c9\u7528\u7a0b\u5e8f\u53ef\u4ee5\u5f9e\u4e2d\u5206\u914dID\u3002\u9019\u53ef\u4ee5\u901a\u904e\u7c21\u55ae\u7684\u905e\u589e\u64cd\u4f5c\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\ndef allocate_id():\n    current_range = redis.get(\"id_range\")\n    if current_range &gt; 0:\n        new_id = redis.incr(\"current_id\")\n        redis.decr(\"id_range\")\n        return new_id\n    else:\n        # \u91cd\u65b0\u7372\u53d6ID\u7bc4\u570d\n        get_id_range()\n        return allocate_id()\n<\/code><\/pre>\n<h3 id=\"4-%e6%8c%81%e4%b9%85%e5%8c%96id-NjOwAenfiu\">4. \u6301\u4e45\u5316ID<\/h3>\n<p>\u6700\u5f8c\uff0c\u5206\u914d\u7684ID\u9700\u8981\u88ab\u6301\u4e45\u5316\u5230\u6578\u64da\u5eab\u4e2d\uff0c\u4ee5\u4fbf\u672a\u4f86\u67e5\u8a62\u548c\u4f7f\u7528\uff1a<\/p>\n<pre><code>\ndef persist_id(new_id):\n    db.execute(\"INSERT INTO ids (id) VALUES (?)\", (new_id,))\n<\/code><\/pre>\n<h2 id=\"%e5%84%aa%e5%8b%a2%e8%88%87%e6%8c%91%e6%88%b0-NjOwAenfiu\">\u512a\u52e2\u8207\u6311\u6230<\/h2>\n<p>\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u5177\u6709\u591a\u500b\u512a\u52e2\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u6027\uff1a\u6e1b\u5c11\u4e86\u5c0d\u6578\u64da\u5eab\u7684\u983b\u7e41\u8a2a\u554f\u3002<\/li>\n<li>\u53ef\u64f4\u5c55\u6027\uff1a\u53ef\u4ee5\u8f15\u9b06\u5730\u8abf\u6574ID\u7bc4\u570d\u4ee5\u9069\u61c9\u4e0d\u540c\u7684\u9700\u6c42\u3002<\/li>\n<li>\u9748\u6d3b\u6027\uff1a\u53ef\u4ee5\u6839\u64da\u696d\u52d9\u9700\u6c42\u8abf\u6574ID\u751f\u6210\u7b56\u7565\u3002<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0c\u9019\u7a2e\u65b9\u6cd5\u4e5f\u5b58\u5728\u4e00\u4e9b\u6311\u6230\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>ID\u7bc4\u570d\u7684\u7ba1\u7406\uff1a\u9700\u8981\u78ba\u4fddID\u7bc4\u570d\u4e0d\u6703\u88ab\u91cd\u8907\u5206\u914d\u3002<\/li>\n<li>Redis\u7684\u53ef\u7528\u6027\uff1a\u5982\u679cRedis\u51fa\u73fe\u6545\u969c\uff0c\u53ef\u80fd\u6703\u5f71\u97ffID\u7684\u751f\u6210\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NjOwAenfiu\">\u7e3d\u7d50<\/h2>\n<p>\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u53ef\u64f4\u5c55\u7684ID\u751f\u6210\u65b9\u6848\uff0c\u7279\u5225\u9069\u5408\u9ad8\u4f75\u767c\u7684\u61c9\u7528\u5834\u666f\u3002\u901a\u904e\u7d50\u5408Redis\u548c\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406ID\u7684\u751f\u6210\u548c\u6301\u4e45\u5316\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548ID\u751f\u6210\u7684\u7cfb\u7d71\uff0c\u9019\u7a2e\u65b9\u6cd5\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis+DB\u5be6\u73fe\u57fa\u65bc\u865f\u6bb5\u7684\u767c\u865f\u5668\u539f\u7406\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u552f\u4e00\u6027\u8207\u9ad8\u6027\u80fd\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-97654","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97654","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=97654"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97654\/revisions"}],"predecessor-version":[{"id":97655,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97654\/revisions\/97655"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}