{"id":163483,"date":"2024-11-04T23:53:35","date_gmt":"2024-11-04T15:53:35","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163483\/"},"modified":"2024-11-04T23:53:36","modified_gmt":"2024-11-04T15:53:36","slug":"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e6%96%b9%e6%a1%88%ef%bc%88redis%e7%9a%84%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163483\/","title":{"rendered":"\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u7684\u65b9\u6848\uff08redis\u7684\u7de9\u5b58\u96ea\u5d29\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e6%96%b9%e6%a1%88%ef%bc%88redis%e7%9a%84%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%89-ePgfmqNttk\">\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u7684\u65b9\u6848\uff08redis\u7684\u7de9\u5b58\u96ea\u5d29\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u7136\u800c\uff0c\u96a8\u8457\u4f7f\u7528\u91cf\u7684\u589e\u52a0\uff0cRedis\u7de9\u5b58\u96ea\u5d29\u7684\u554f\u984c\u4e5f\u65e5\u76ca\u51f8\u986f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7de9\u5b58\u96ea\u5d29\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%ef%bc%9f-ePgfmqNttk\">\u4ec0\u9ebc\u662fRedis\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\u7121\u6cd5\u5f9e\u7de9\u5b58\u4e2d\u7372\u53d6\u6578\u64da\u3002<\/li>\n<li>\u9ad8\u4e26\u767c\u8acb\u6c42\u5c0e\u81f4\u7de9\u5b58\u672a\u80fd\u53ca\u6642\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b7%a9%e5%ad%98%e9%9b%aa%e5%b4%a9%e7%9a%84%e6%88%90%e5%9b%a0-ePgfmqNttk\">\u7de9\u5b58\u96ea\u5d29\u7684\u6210\u56e0<\/h2>\n<p>\u7de9\u5b58\u96ea\u5d29\u7684\u4e3b\u8981\u6210\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u96c6\u4e2d\u904e\u671f\uff1a<\/strong>\u7576\u5927\u91cf\u7de9\u5b58\u6578\u64da\u5728\u540c\u4e00\u6642\u9593\u904e\u671f\u6642\uff0c\u8acb\u6c42\u5c07\u76f4\u63a5\u6253\u5230\u6578\u64da\u5eab\uff0c\u9020\u6210\u77ac\u6642\u7684\u9ad8\u8ca0\u8f09\u3002<\/li>\n<li><strong>\u7de9\u5b58\u5931\u6548\uff1a<\/strong>\u5982\u679c\u7de9\u5b58\u670d\u52d9\u5668\u51fa\u73fe\u6545\u969c\uff0c\u6240\u6709\u8acb\u6c42\u90fd\u5c07\u7121\u6cd5\u5f9e\u7de9\u5b58\u4e2d\u7372\u53d6\u6578\u64da\uff0c\u76f4\u63a5\u5f71\u97ff\u5f8c\u7aef\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u9ad8\u4e26\u767c\u8acb\u6c42\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u7de9\u5b58\u672a\u80fd\u53ca\u6642\u66f4\u65b0\uff0c\u5c0e\u81f4\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u6578\u64da\u5eab\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-ePgfmqNttk\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e9%9a%a8%e6%a9%9f%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-ePgfmqNttk\">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\u53ef\u4ee5\u6709\u6548\u5730\u5206\u6563\u904e\u671f\u6642\u9593\uff0c\u6e1b\u5c11\u540c\u6642\u904e\u671f\u7684\u60c5\u6cc1\u3002<\/p>\n<pre><code>\nint randomExpireTime = (int)(Math.random() * 1000) + 3000; \/\/ \u96a8\u6a5f\u904e\u671f\u6642\u9593\u7bc4\u570d\nredisTemplate.opsForValue().set(\"key\", \"value\", randomExpireTime, TimeUnit.MILLISECONDS);\n<\/code><\/pre>\n<h3 id=\"2-%e7%86%b1%e9%bb%9e%e6%95%b8%e6%93%9a%e9%a0%90%e7%86%b1-ePgfmqNttk\">2. \u71b1\u9ede\u6578\u64da\u9810\u71b1<\/h3>\n<p>\u5c0d\u65bc\u4e00\u4e9b\u71b1\u9ede\u6578\u64da\uff0c\u53ef\u4ee5\u5728\u7cfb\u7d71\u555f\u52d5\u6642\u63d0\u524d\u5c07\u5176\u52a0\u8f09\u5230\u7de9\u5b58\u4e2d\uff0c\u907f\u514d\u5728\u9ad8\u4e26\u767c\u8acb\u6c42\u4e0b\u76f4\u63a5\u6253\u5230\u6578\u64da\u5eab\u3002<\/p>\n<h3 id=\"3-%e9%99%90%e6%b5%81%e6%8e%aa%e6%96%bd-ePgfmqNttk\">3. \u9650\u6d41\u63aa\u65bd<\/h3>\n<p>\u901a\u904e\u9650\u6d41\u63aa\u65bd\u4f86\u63a7\u5236\u8acb\u6c42\u7684\u6578\u91cf\uff0c\u907f\u514d\u77ac\u6642\u7684\u9ad8\u4e26\u767c\u8acb\u6c42\u5c0d\u6578\u64da\u5eab\u9020\u6210\u58d3\u529b\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee4\u724c\u6876\u6216\u6f0f\u6597\u7b97\u6cd5\u4f86\u5be6\u73fe\u9650\u6d41\u3002<\/p>\n<pre><code>\n\/\/ \u4ee4\u724c\u6876\u7b97\u6cd5\u793a\u4f8b\npublic class TokenBucket {\n    private final long capacity;\n    private long tokens;\n    private long lastRefillTimestamp;\n\n    public TokenBucket(long capacity) {\n        this.capacity = capacity;\n        this.tokens = capacity;\n        this.lastRefillTimestamp = System.currentTimeMillis();\n    }\n\n    public synchronized boolean tryConsume() {\n        refill();\n        if (tokens &gt; 0) {\n            tokens--;\n            return true;\n        }\n        return false;\n    }\n\n    private void refill() {\n        long now = System.currentTimeMillis();\n        long elapsed = now - lastRefillTimestamp;\n        long newTokens = elapsed \/ 1000; \/\/ \u6bcf\u79d2\u88dc\u5145\u4e00\u500b\u4ee4\u724c\n        tokens = Math.min(capacity, tokens + newTokens);\n        lastRefillTimestamp = now;\n    }\n}\n<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e6%9c%ac%e5%9c%b0%e7%b7%a9%e5%ad%98-ePgfmqNttk\">4. \u4f7f\u7528\u672c\u5730\u7de9\u5b58<\/h3>\n<p>\u5728\u61c9\u7528\u5c64\u9762\u4f7f\u7528\u672c\u5730\u7de9\u5b58\uff08\u5982Guava Cache\uff09\u4f86\u6e1b\u5c11\u5c0dRedis\u7684\u8acb\u6c42\uff0c\u9019\u6a23\u5373\u4f7fRedis\u51fa\u73fe\u6545\u969c\uff0c\u61c9\u7528\u4ecd\u7136\u53ef\u4ee5\u5f9e\u672c\u5730\u7de9\u5b58\u4e2d\u7372\u53d6\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ePgfmqNttk\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7de9\u5b58\u96ea\u5d29\u662f\u4e00\u500b\u9700\u8981\u91cd\u8996\u7684\u554f\u984c\uff0c\u901a\u904e\u96a8\u6a5f\u904e\u671f\u6642\u9593\u3001\u71b1\u9ede\u6578\u64da\u9810\u71b1\u3001\u9650\u6d41\u63aa\u65bd\u4ee5\u53ca\u4f7f\u7528\u672c\u5730\u7de9\u5b58\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u7de9\u5b58\u96ea\u5d29\u7684\u98a8\u96aa\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\u6709\u6548\u89e3\u6c7aRedis\u7de9\u5b58\u96ea\u5d29\u7684\u65b9\u6848\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u6301\u7e8c\u53ef\u7528\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-163483","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163483","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=163483"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163483\/revisions"}],"predecessor-version":[{"id":163484,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163483\/revisions\/163484"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}