{"id":126345,"date":"2024-10-26T03:57:26","date_gmt":"2024-10-25T19:57:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/126345\/"},"modified":"2024-10-26T03:57:27","modified_gmt":"2024-10-25T19:57:27","slug":"redis-%e9%9d%a2%e8%a9%a6%e9%a1%8c%e8%a7%a3%e6%9e%90%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%e7%9f%a5%e5%a4%9a%e5%b0%91","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/126345\/","title":{"rendered":"Redis \u9762\u8a66\u984c\u89e3\u6790\u5feb\u53d6\u64ca\u7a7f\u77e5\u591a\u5c11"},"content":{"rendered":"<h1 id=\"redis-%e9%9d%a2%e8%a9%a6%e9%a1%8c%e8%a7%a3%e6%9e%90%ef%bc%9a%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%e7%9f%a5%e5%a4%9a%e5%b0%91-bIkuPZvNlk\">Redis \u9762\u8a66\u984c\u89e3\u6790\uff1a\u5feb\u53d6\u64ca\u7a7f\u77e5\u591a\u5c11<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u8def\u61c9\u7528\u4e2d\uff0c\u5feb\u53d6\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u7cfb\u7d71\u6548\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5feb\u53d6\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528 Redis \u6642\uff0c\u958b\u767c\u8005\u5e38\u5e38\u6703\u9047\u5230\u300c\u5feb\u53d6\u64ca\u7a7f\u300d\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5feb\u53d6\u64ca\u7a7f\u7684\u6982\u5ff5\u3001\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u8b80\u8005\u5728\u9762\u8a66\u4e2d\u66f4\u597d\u5730\u61c9\u5c0d\u76f8\u95dc\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%ef%bc%9f-bIkuPZvNlk\">\u4ec0\u9ebc\u662f\u5feb\u53d6\u64ca\u7a7f\uff1f<\/h2>\n<p>\u5feb\u53d6\u64ca\u7a7f\u662f\u6307\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u67d0\u500b\u7279\u5b9a\u7684\u5feb\u53d6\u9375\u4e0d\u5b58\u5728\uff0c\u5c0e\u81f4\u5927\u91cf\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u8cc7\u6599\u5eab\uff0c\u9020\u6210\u8cc7\u6599\u5eab\u7684\u77ac\u6642\u8ca0\u8f09\u5287\u589e\uff0c\u751a\u81f3\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6599\u5eab\u5d29\u6f70\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u67d0\u4e9b\u71b1\u9580\u7684\u8cc7\u6599\u9805\u76ee\u4e0a\uff0c\u7576\u9019\u4e9b\u8cc7\u6599\u9805\u76ee\u904e\u671f\u6216\u88ab\u522a\u9664\u6642\uff0c\u6240\u6709\u8acb\u6c42\u90fd\u6703\u76f4\u63a5\u67e5\u8a62\u8cc7\u6599\u5eab\u3002<\/p>\n<h2 id=\"%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%e7%9a%84%e6%88%90%e5%9b%a0-bIkuPZvNlk\">\u5feb\u53d6\u64ca\u7a7f\u7684\u6210\u56e0<\/h2>\n<ul>\n<li><strong>\u5feb\u53d6\u904e\u671f\uff1a<\/strong>\u7576\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\u904e\u671f\u5f8c\uff0c\u8acb\u6c42\u5c07\u7121\u6cd5\u5f9e\u5feb\u53d6\u4e2d\u7372\u53d6\u8cc7\u6599\uff0c\u9032\u800c\u76f4\u63a5\u67e5\u8a62\u8cc7\u6599\u5eab\u3002<\/li>\n<li><strong>\u8cc7\u6599\u4e0d\u5b58\u5728\uff1a<\/strong>\u67d0\u4e9b\u8acb\u6c42\u53ef\u80fd\u67e5\u8a62\u7684\u8cc7\u6599\u672c\u8eab\u5c31\u4e0d\u5b58\u5728\uff0c\u9019\u6703\u5c0e\u81f4\u5927\u91cf\u8acb\u6c42\u540c\u6642\u6253\u5230\u8cc7\u6599\u5eab\u3002<\/li>\n<li><strong>\u9ad8\u4f75\u767c\u8acb\u6c42\uff1a<\/strong>\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u82e5\u5feb\u53d6\u672a\u547d\u4e2d\uff0c\u6240\u6709\u8acb\u6c42\u90fd\u6703\u77ac\u9593\u6e67\u5411\u8cc7\u6599\u5eab\uff0c\u9020\u6210\u8ca0\u8f09\u904e\u9ad8\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-bIkuPZvNlk\">\u5feb\u53d6\u64ca\u7a7f\u7684\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u89e3\u6c7a\u5feb\u53d6\u64ca\u7a7f\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e4%ba%92%e6%96%a5%e9%8e%96-bIkuPZvNlk\">1. \u4f7f\u7528\u4e92\u65a5\u9396<\/h3>\n<p>\u5728\u67e5\u8a62\u8cc7\u6599\u5eab\u4e4b\u524d\uff0c\u5148\u5c0d\u8a72\u8cc7\u6599\u7684\u5feb\u53d6\u9375\u52a0\u9396\uff0c\u53ea\u6709\u7372\u5f97\u9396\u7684\u8acb\u6c42\u624d\u80fd\u67e5\u8a62\u8cc7\u6599\u5eab\u4e26\u66f4\u65b0\u5feb\u53d6\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u591a\u500b\u8acb\u6c42\u540c\u6642\u67e5\u8a62\u8cc7\u6599\u5eab\u3002<\/p>\n<pre><code>\npublic void getData(String key) {\n    if (cache.containsKey(key)) {\n        return cache.get(key);\n    }\n    synchronized (lock) {\n        if (!cache.containsKey(key)) {\n            \/\/ \u67e5\u8a62\u8cc7\u6599\u5eab\n            Object data = database.query(key);\n            cache.put(key, data);\n        }\n    }\n    return cache.get(key);\n}\n<\/code><\/pre>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-bIkuPZvNlk\">2. \u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u5c0d\u65bc\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u907f\u514d\u8cc7\u6599\u9577\u6642\u9593\u5b58\u5728\u5feb\u53d6\u4e2d\u800c\u5c0e\u81f4\u5feb\u53d6\u64ca\u7a7f\u7684\u98a8\u96aa\u3002\u53ef\u4ee5\u6839\u64da\u8cc7\u6599\u7684\u4f7f\u7528\u983b\u7387\u548c\u7279\u6027\u4f86\u8abf\u6574\u904e\u671f\u6642\u9593\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e9%a0%90%e7%86%b1%e5%bf%ab%e5%8f%96-bIkuPZvNlk\">3. \u4f7f\u7528\u9810\u71b1\u5feb\u53d6<\/h3>\n<p>\u5728\u7cfb\u7d71\u555f\u52d5\u6216\u6d41\u91cf\u9ad8\u5cf0\u671f\u4e4b\u524d\uff0c\u4e3b\u52d5\u5c07\u4e00\u4e9b\u71b1\u9580\u8cc7\u6599\u9810\u5148\u52a0\u8f09\u5230\u5feb\u53d6\u4e2d\uff0c\u6e1b\u5c11\u9ad8\u4f75\u767c\u8acb\u6c42\u6642\u7684\u5feb\u53d6\u672a\u547d\u4e2d\u7684\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e5%b8%83%e9%9a%86%e9%81%8e%e6%bf%be%e5%99%a8-bIkuPZvNlk\">4. \u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668<\/h3>\n<p>\u5e03\u9686\u904e\u6ffe\u5668\u53ef\u4ee5\u7528\u4f86\u5224\u65b7\u67d0\u500b\u8cc7\u6599\u662f\u5426\u5b58\u5728\u65bc\u8cc7\u6599\u5eab\u4e2d\uff0c\u5f9e\u800c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5c0d\u8cc7\u6599\u5eab\u7684\u8acb\u6c42\u6578\u91cf\u3002<\/p>\n<pre><code>\nif (bloomFilter.mightContain(key)) {\n    \/\/ \u67e5\u8a62\u8cc7\u6599\u5eab\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-bIkuPZvNlk\">\u7d50\u8ad6<\/h2>\n<p>\u5feb\u53d6\u64ca\u7a7f\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5176\u5c0d\u7cfb\u7d71\u6027\u80fd\u7684\u5f71\u97ff\u3002\u5728\u9762\u8a66\u4e2d\uff0c\u4e86\u89e3\u5feb\u53d6\u64ca\u7a7f\u7684\u6210\u56e0\u53ca\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u5c55\u793a\u4f60\u7684\u6280\u8853\u80fd\u529b\u548c\u554f\u984c\u89e3\u6c7a\u80fd\u529b\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c\u5feb\u53d6\u6280\u8853\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u89e3\u6790Redis\u9762\u8a66\u984c\uff0c\u4e86\u89e3\u5feb\u53d6\u64ca\u7a7f\u7684\u6982\u5ff5\u8207\u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u4f60\u5728\u9762\u8a66\u4e2d\u812b\u7a4e\u800c\u51fa\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-126345","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126345","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=126345"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126345\/revisions"}],"predecessor-version":[{"id":126346,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/126345\/revisions\/126346"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=126345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=126345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=126345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}