{"id":190984,"date":"2024-11-12T16:09:28","date_gmt":"2024-11-12T08:09:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/190984\/"},"modified":"2024-11-12T16:09:30","modified_gmt":"2024-11-12T08:09:30","slug":"%e7%b7%9a%e4%b8%8a%e7%a7%92%e6%ae%ba%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%9b%b6%e5%bb%b6%e9%81%b2%ef%bc%88redis%e6%a8%a1%e6%93%ac%e7%a7%92%e6%ae%ba%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/190984\/","title":{"rendered":"\u7dda\u4e0a\u79d2\u6bba\u5229\u7528Redis\u5be6\u73fe\u96f6\u5ef6\u9072\uff08redis\u6a21\u64ec\u79d2\u6bba\uff09"},"content":{"rendered":"<h1 id=\"%e7%b7%9a%e4%b8%8a%e7%a7%92%e6%ae%ba%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e9%9b%b6%e5%bb%b6%e9%81%b2%ef%bc%88redis%e6%a8%a1%e6%93%ac%e7%a7%92%e6%ae%ba%ef%bc%89-aIxVpppEbp\">\u7dda\u4e0a\u79d2\u6bba\u5229\u7528Redis\u5be6\u73fe\u96f6\u5ef6\u9072\uff08redis\u6a21\u64ec\u79d2\u6bba\uff09<\/h1>\n<p>\u96a8\u8457\u96fb\u5b50\u5546\u52d9\u7684\u8fc5\u901f\u767c\u5c55\uff0c\u7dda\u4e0a\u79d2\u6bba\u6d3b\u52d5\u5df2\u6210\u70ba\u5546\u5bb6\u5438\u5f15\u9867\u5ba2\u7684\u91cd\u8981\u624b\u6bb5\u3002\u9019\u985e\u6d3b\u52d5\u901a\u5e38\u6d89\u53ca\u5927\u91cf\u7528\u6236\u5728\u77ed\u6642\u9593\u5167\u6436\u8cfc\u6709\u9650\u7684\u5546\u54c1\uff0c\u5c0d\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u63d0\u51fa\u4e86\u6975\u9ad8\u7684\u8981\u6c42\u3002\u70ba\u4e86\u5be6\u73fe\u96f6\u5ef6\u9072\u7684\u79d2\u6bba\u9ad4\u9a57\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u6210\u70ba\u4e86\u8a31\u591a\u958b\u767c\u8005\u7684\u9996\u9078\u5de5\u5177\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u4f86\u6a21\u64ec\u79d2\u6bba\u6d3b\u52d5\uff0c\u4e26\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e7%89%b9%e6%80%a7%e8%88%87%e5%84%aa%e5%8b%a2-aIxVpppEbp\">Redis\u7684\u7279\u6027\u8207\u512a\u52e2<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u986f\u8457\u7279\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\uff1a<\/strong>Redis\u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u6975\u5feb\uff0c\u9069\u5408\u9700\u8981\u5feb\u901f\u97ff\u61c9\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis\u4e0d\u50c5\u652f\u6301\u5b57\u7b26\u4e32\uff0c\u9084\u652f\u6301\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>Redis\u63d0\u4f9bRDB\u548cAOF\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u652f\u6301\uff1a<\/strong>Redis Cluster\u53ef\u4ee5\u5be6\u73fe\u6578\u64da\u7684\u5206\u7247\u5b58\u5132\uff0c\u652f\u6301\u5927\u898f\u6a21\u7684\u61c9\u7528\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a7%92%e6%ae%ba%e6%b4%bb%e5%8b%95%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%b5%81%e7%a8%8b-aIxVpppEbp\">\u79d2\u6bba\u6d3b\u52d5\u7684\u57fa\u672c\u6d41\u7a0b<\/h2>\n<p>\u5728\u8a2d\u8a08\u79d2\u6bba\u7cfb\u7d71\u6642\uff0c\u901a\u5e38\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u5546\u54c1\u4e0a\u67b6\uff1a<\/strong>\u5728\u79d2\u6bba\u958b\u59cb\u524d\uff0c\u5c07\u5546\u54c1\u4fe1\u606f\u548c\u5eab\u5b58\u6578\u91cf\u5b58\u5165Redis\u3002<\/li>\n<li><strong>\u7528\u6236\u8acb\u6c42\uff1a<\/strong>\u7528\u6236\u5728\u79d2\u6bba\u958b\u59cb\u6642\u767c\u8d77\u8acb\u6c42\uff0c\u7cfb\u7d71\u9700\u8981\u5feb\u901f\u5224\u65b7\u7528\u6236\u662f\u5426\u80fd\u5920\u6210\u529f\u6436\u8cfc\u3002<\/li>\n<li><strong>\u5eab\u5b58\u6aa2\u67e5\uff1a<\/strong>\u7cfb\u7d71\u9700\u6aa2\u67e5Redis\u4e2d\u7684\u5eab\u5b58\u6578\u91cf\uff0c\u82e5\u5eab\u5b58\u8db3\u5920\u5247\u6e1b\u5c11\u5eab\u5b58\uff0c\u5426\u5247\u8fd4\u56de\u6436\u8cfc\u5931\u6557\u7684\u6d88\u606f\u3002<\/li>\n<li><strong>\u8a02\u55ae\u751f\u6210\uff1a<\/strong>\u6210\u529f\u6436\u8cfc\u7684\u7528\u6236\u751f\u6210\u8a02\u55ae\uff0c\u4e26\u5c07\u8a02\u55ae\u4fe1\u606f\u5b58\u5165\u6578\u64da\u5eab\u3002<\/li>\n<\/ol>\n<h2 id=\"redis%e6%a8%a1%e6%93%ac%e7%a7%92%e6%ae%ba%e7%9a%84%e5%af%a6%e7%8f%be-aIxVpppEbp\">Redis\u6a21\u64ec\u79d2\u6bba\u7684\u5be6\u73fe<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Redis\u79d2\u6bba\u6a21\u64ec\u793a\u4f8b\uff0c\u4f7f\u7528Python\u8a9e\u8a00\u548cRedis\u5eab\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u521d\u59cb\u5316\u5546\u54c1\u5eab\u5b58\nr.set('product_stock', 100)\n\ndef seckill(user_id):\n    # \u6aa2\u67e5\u5eab\u5b58\n    stock = int(r.get('product_stock'))\n    if stock &gt; 0:\n        # \u6e1b\u5c11\u5eab\u5b58\n        r.decr('product_stock')\n        print(f\"\u7528\u6236 {user_id} \u6210\u529f\u6436\u8cfc\uff01\")\n    else:\n        print(f\"\u7528\u6236 {user_id} \u6436\u8cfc\u5931\u6557\uff0c\u5eab\u5b58\u4e0d\u8db3\uff01\")\n\n# \u6a21\u64ec\u7528\u6236\u6436\u8cfc\nfor i in range(150):\n    time.sleep(0.01)  # \u6a21\u64ec\u7528\u6236\u8acb\u6c42\u5ef6\u9072\n    seckill(i)\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230Redis\uff0c\u7136\u5f8c\u521d\u59cb\u5316\u5546\u54c1\u5eab\u5b58\u70ba100\u3002\u63a5\u8457\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u79d2\u6bba\u51fd\u6578\uff0c\u6aa2\u67e5\u5eab\u5b58\u4e26\u6839\u64da\u7d50\u679c\u9032\u884c\u76f8\u61c9\u7684\u64cd\u4f5c\u3002\u6700\u5f8c\uff0c\u6211\u5011\u6a21\u64ec\u4e86150\u500b\u7528\u6236\u7684\u6436\u8cfc\u8acb\u6c42\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-aIxVpppEbp\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u79d2\u6bba\u7cfb\u7d71\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u4f75\u767c\u63a7\u5236\uff1a<\/strong>\u70ba\u4e86\u907f\u514d\u8d85\u8ce3\u60c5\u6cc1\uff0c\u61c9\u8a72\u4f7f\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u78ba\u4fdd\u5eab\u5b58\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<li><strong>\u6d41\u91cf\u63a7\u5236\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528\u4ee4\u724c\u6876\u6216\u6f0f\u6597\u7b97\u6cd5\u4f86\u9650\u5236\u540c\u4e00\u6642\u9593\u5167\u7684\u8acb\u6c42\u6578\u91cf\uff0c\u9632\u6b62\u7cfb\u7d71\u904e\u8f09\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u9ad8\u4f75\u767c\u60c5\u6cc1\u4e0b\uff0c\u9700\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u907f\u514d\u56e0\u70ba\u7db2\u7d61\u5ef6\u9072\u5c0e\u81f4\u7684\u6578\u64da\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-aIxVpppEbp\">\u7e3d\u7d50<\/h2>\n<p>\u5229\u7528Redis\u5be6\u73fe\u7dda\u4e0a\u79d2\u6bba\u6d3b\u52d5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u8655\u7406\u80fd\u529b\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u78ba\u4fdd\u7528\u6236\u7372\u5f97\u826f\u597d\u7684\u6436\u8cfc\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5229\u7528Redis\u5be6\u73fe\u7dda\u4e0a\u79d2\u6bba\uff0c\u9054\u6210\u96f6\u5ef6\u9072\u4ea4\u6613\uff0c\u63d0\u5347\u8cfc\u7269\u9ad4\u9a57\uff0c\u6a21\u64ec\u79d2\u6bba\u6d3b\u52d5\u7684\u6700\u4f73\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-190984","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190984","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=190984"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190984\/revisions"}],"predecessor-version":[{"id":190985,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190984\/revisions\/190985"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=190984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=190984"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=190984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}