{"id":169357,"date":"2024-11-06T18:58:24","date_gmt":"2024-11-06T10:58:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/169357\/"},"modified":"2024-11-06T18:58:25","modified_gmt":"2024-11-06T10:58:25","slug":"%e5%a6%99%e7%94%a8redis%e6%9d%9c%e7%b5%95%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%88redis%e9%81%bf%e5%85%8d%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/169357\/","title":{"rendered":"\u5999\u7528Redis\u675c\u7d55\u7de9\u5b58\u96ea\u5d29\uff08redis\u907f\u514d\u7de9\u5b58\u96ea\u5d29\uff09"},"content":{"rendered":"<h1 id=\"%e5%a6%99%e7%94%a8redis%e6%9d%9c%e7%b5%95%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%88redis%e9%81%bf%e5%85%8d%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%89-bqzgSEcHxw\">\u5999\u7528Redis\u675c\u7d55\u7de9\u5b58\u96ea\u5d29\uff08redis\u907f\u514d\u7de9\u5b58\u96ea\u5d29\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u7de9\u5b58\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u7cfb\u7d71\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u4f7f\u7528\u91cf\u7684\u589e\u52a0\uff0c\u7de9\u5b58\u96ea\u5d29\u7684\u554f\u984c\u4e5f\u65e5\u76ca\u51f8\u986f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u6709\u6548\u907f\u514d\u7de9\u5b58\u96ea\u5d29\u7684\u73fe\u8c61\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%9f-bqzgSEcHxw\">\u4ec0\u9ebc\u662f\u7de9\u5b58\u96ea\u5d29\uff1f<\/h2>\n<p>\u7de9\u5b58\u96ea\u5d29\u662f\u6307\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u7de9\u5b58\u4e2d\u7684\u5927\u91cf\u6578\u64da\u540c\u6642\u904e\u671f\uff0c\u5c0e\u81f4\u5927\u91cf\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u9020\u6210\u6578\u64da\u5eab\u7684\u77ac\u6642\u8ca0\u8f09\u6fc0\u589e\uff0c\u6700\u7d42\u53ef\u80fd\u5c0e\u81f4\u7cfb\u7d71\u5d29\u6f70\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7de9\u5b58\u7684\u6578\u64da\u540c\u6642\u904e\u671f\u3002<\/li>\n<li>\u7de9\u5b58\u670d\u52d9\u5668\u6545\u969c\uff0c\u5c0e\u81f4\u6240\u6709\u8acb\u6c42\u90fd\u7121\u6cd5\u5f9e\u7de9\u5b58\u4e2d\u7372\u53d6\u6578\u64da\u3002<\/li>\n<li>\u9ad8\u4e26\u767c\u8acb\u6c42\u5c0e\u81f4\u7de9\u5b58\u672a\u547d\u4e2d\uff0c\u76f4\u63a5\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e7%9a%84%e7%89%b9%e6%80%a7%e8%88%87%e5%84%aa%e5%8b%a2-bqzgSEcHxw\">Redis\u7684\u7279\u6027\u8207\u512a\u52e2<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u57fa\u65bc\u5167\u5b58\u7684\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5176\u9ad8\u6548\u7684\u8b80\u5beb\u6027\u80fd\u4f7f\u5176\u6210\u70ba\u7de9\u5b58\u7cfb\u7d71\u7684\u7406\u60f3\u9078\u64c7\u3002Redis\u9084\u63d0\u4f9b\u4e86\u591a\u7a2e\u6301\u4e45\u5316\u9078\u9805\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/p>\n<h2 id=\"%e9%81%bf%e5%85%8d%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e7%ad%96%e7%95%a5-bqzgSEcHxw\">\u907f\u514d\u7de9\u5b58\u96ea\u5d29\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e9%9a%a8%e6%a9%9f%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-bqzgSEcHxw\">1. \u96a8\u6a5f\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u5927\u91cf\u6578\u64da\u540c\u6642\u904e\u671f\uff0c\u53ef\u4ee5\u70ba\u6bcf\u500b\u7de9\u5b58\u9805\u8a2d\u7f6e\u96a8\u6a5f\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u591a\u500b\u7de9\u5b58\u9805\u5728\u540c\u4e00\u6642\u9593\u904e\u671f\uff0c\u4e5f\u4e0d\u6703\u540c\u6642\u5931\u6548\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u58d3\u529b\u3002<\/p>\n<pre><code>\n# \u8a2d\u7f6e\u96a8\u6a5f\u904e\u671f\u6642\u9593\u7684\u793a\u4f8b\nexpire_time = random.randint(60, 300)  # \u96a8\u6a5f\u8a2d\u7f6e60\u5230300\u79d2\u7684\u904e\u671f\u6642\u9593\nredis.set(\"key\", \"value\", ex=expire_time)\n<\/code><\/pre>\n<h3 id=\"2-%e7%86%b1%e9%bb%9e%e6%95%b8%e6%93%9a%e7%9a%84%e9%a0%90%e7%86%b1-bqzgSEcHxw\">2. \u71b1\u9ede\u6578\u64da\u7684\u9810\u71b1<\/h3>\n<p>\u5c0d\u65bc\u4e00\u4e9b\u71b1\u9ede\u6578\u64da\uff0c\u53ef\u4ee5\u5728\u7cfb\u7d71\u555f\u52d5\u6642\u63d0\u524d\u52a0\u8f09\u5230\u7de9\u5b58\u4e2d\uff0c\u907f\u514d\u5728\u9ad8\u4e26\u767c\u8acb\u6c42\u4e0b\u76f4\u63a5\u67e5\u8a62\u6578\u64da\u5eab\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u6578\u64da\u5eab\u7684\u8ca0\u8f09\u3002<\/p>\n<pre><code>\n# \u9810\u71b1\u71b1\u9ede\u6578\u64da\u7684\u793a\u4f8b\nhot_data = get_hot_data_from_db()\nfor item in hot_data:\n    redis.set(item['key'], item['value'], ex=expire_time)\n<\/code><\/pre>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e8%88%87%e9%99%8d%e7%b4%9a%e7%ad%96%e7%95%a5-bqzgSEcHxw\">3. \u9650\u6d41\u8207\u964d\u7d1a\u7b56\u7565<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u901a\u904e\u9650\u6d41\u4f86\u63a7\u5236\u8acb\u6c42\u7684\u6578\u91cf\uff0c\u907f\u514d\u77ac\u6642\u8acb\u6c42\u904e\u591a\u5c0e\u81f4\u7cfb\u7d71\u5d29\u6f70\u3002\u6b64\u5916\uff0c\u5be6\u65bd\u964d\u7d1a\u7b56\u7565\uff0c\u5c0d\u65bc\u975e\u6838\u5fc3\u529f\u80fd\u53ef\u4ee5\u66ab\u6642\u95dc\u9589\uff0c\u6e1b\u5c11\u7cfb\u7d71\u8ca0\u64d4\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e4%ba%92%e6%96%a5%e9%8e%96-bqzgSEcHxw\">4. \u4f7f\u7528\u4e92\u65a5\u9396<\/h3>\n<p>\u5728\u67e5\u8a62\u7de9\u5b58\u672a\u547d\u4e2d\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e92\u65a5\u9396\u4f86\u4fdd\u8b77\u6578\u64da\u5eab\u67e5\u8a62\u7684\u904e\u7a0b\uff0c\u907f\u514d\u591a\u500b\u8acb\u6c42\u540c\u6642\u67e5\u8a62\u6578\u64da\u5eab\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u58d3\u529b\u3002<\/p>\n<pre><code>\n# \u4f7f\u7528\u4e92\u65a5\u9396\u7684\u793a\u4f8b\nlock = redis.lock(\"lock_key\", timeout=10)\nif lock.acquire(blocking=True):\n    try:\n        # \u67e5\u8a62\u6578\u64da\u5eab\u4e26\u66f4\u65b0\u7de9\u5b58\n        data = query_db()\n        redis.set(\"key\", data)\n    finally:\n        lock.release()\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bqzgSEcHxw\">\u7e3d\u7d50<\/h2>\n<p>\u7de9\u5b58\u96ea\u5d29\u662f\u4e00\u500b\u56b4\u91cd\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u9019\u4e00\u73fe\u8c61\u3002\u5229\u7528Redis\u7684\u7279\u6027\uff0c\u7d50\u5408\u96a8\u6a5f\u904e\u671f\u6642\u9593\u3001\u71b1\u9ede\u6578\u64da\u9810\u71b1\u3001\u9650\u6d41\u8207\u964d\u7d1a\u7b56\u7565\u4ee5\u53ca\u4e92\u65a5\u9396\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u6709\u6548\u907f\u514d\u7de9\u5b58\u96ea\u5d29\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u9ad8\u53ef\u7528\u6027\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-169357","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169357","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=169357"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169357\/revisions"}],"predecessor-version":[{"id":169358,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169357\/revisions\/169358"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=169357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=169357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=169357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}