{"id":205514,"date":"2025-06-12T09:35:11","date_gmt":"2025-06-12T01:35:11","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205514\/"},"modified":"2025-06-12T09:35:11","modified_gmt":"2025-06-12T01:35:11","slug":"golang%e6%a1%86%e6%9e%b6%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e4%b8%ad%e7%9a%84%e7%bc%93%e5%ad%98%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205514\/","title":{"rendered":"golang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f"},"content":{"rendered":"

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300agolang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f\u300b\uff0c\u8986\u76d6\u4e86GOLANG\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002,Go \u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\u663e\u8457\u63d0\u5347\u6027\u80fd\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e09\u79cd\u5e38\u7528\u6a21\u5f0f\uff1aLRU \u5185\u5b58\u7f13\u5b58\u3001Memcached \u5206\u5e03\u5f0f\u7f13\u5b58\u548c Redis \u6570\u636e\u5e93\u7f13\u5b58\u3002\u5b9e\u6218\u6848\u4f8b\u5c55\u793a\u5982\u4f55\u4f7f\u7528 LRU \u7f13\u5b58\u4f18\u5316 SQL \u67e5\u8be2\u7ed3\u679c\u3002,
\n,
\nGo \u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f<\/strong>,\u5728 Go \u5e94\u7528\u4e2d\uff0c\u7f13\u5b58\u53ef\u663e\u8457\u63d0\u5347\u6027\u80fd\u3002\u672c\u6587\u63a2\u8ba8\u4e86 Go \u6846\u67b6\u4e2d\u5e38\u7528\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5e76\u63d0\u4f9b\u5b9e\u6218\u6848\u4f8b\u3002,
\n1. \u5185\u5b58\u7f13\u5b58<\/strong>,
\n2. \u5206\u5e03\u5f0f\u7f13\u5b58<\/strong>,
\n3. \u6570\u636e\u5e93\u7f13\u5b58<\/strong>,
\n\u5b9e\u6218\u6848\u4f8b\uff1a\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c<\/strong>,\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 LRU \u7f13\u5b58\u4f18\u5316 SQL \u67e5\u8be2\uff1a,
\n\u7ed3\u8bba<\/strong>,\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\u53ef\u4ee5\u663e\u8457\u63d0\u5347 Go \u5e94\u7528\u7684\u6027\u80fd\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e09\u79cd\u5e38\u89c1\u7684\u6a21\u5f0f\uff0c\u5e76\u63d0\u4f9b\u4e86\u5b9e\u6218\u6848\u4f8b\u6765\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u6765\u4f18\u5316\u67e5\u8be2\u7ed3\u679c\u3002,\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300agolang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8egolang,\u7f13\u5b58\u8bbe\u8ba1\u7684\u77e5\u8bc6\u70b9\uff01,<\/p>\n

Memcached<\/strong>: \u4e00\u79cd\u9ad8\u6027\u80fd\u7684\u5206\u5e03\u5f0f\u5185\u5b58\u7f13\u5b58\u3002<\/p>\n

import \"github.com\/bradfitz\/gomemcache\/memcache\"\n\nclient := memcache.New(\"memcached:11211\")\n\/\/ ...<\/pre>\n
,<\/p>\n
LRU (\u6700\u8fd1\u6700\u5c11\u4f7f\u7528)<\/strong>\uff1a\u4f7f\u7528\u53cc\u5411\u94fe\u8868\u8ddf\u8e2a\u6700\u8fd1\u4f7f\u7528\u7684\u5143\u7d20\uff0c\u5f53\u8fbe\u5230\u5bb9\u91cf\u4e0a\u9650\u65f6\u79fb\u9664\u6700\u5c11\u4f7f\u7528\u7684\u5143\u7d20\u3002<\/p>\n
import \"container\/list\"\n\ntype LRUCache struct {\n  capacity int\n  items    *list.List\n  cache    map[int]*list.Element\n}<\/pre>\n
,\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300agolang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f\u300b\uff0c\u8986\u76d6\u4e86GOLANG\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002,
\n<\/b> <\/p>\n
\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span>  ><\/span>  ><\/span>  ><\/span> golang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f<\/span><\/p>\n
golang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f<\/h1>\n
2024-10-26 12:34:00<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n
\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300agolang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f\u300b\uff0c\u8986\u76d6\u4e86GOLANG\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n
Go \u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\u663e\u8457\u63d0\u5347\u6027\u80fd\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e09\u79cd\u5e38\u7528\u6a21\u5f0f\uff1aLRU \u5185\u5b58\u7f13\u5b58\u3001Memcached \u5206\u5e03\u5f0f\u7f13\u5b58\u548c Redis \u6570\u636e\u5e93\u7f13\u5b58\u3002\u5b9e\u6218\u6848\u4f8b\u5c55\u793a\u5982\u4f55\u4f7f\u7528 LRU \u7f13\u5b58\u4f18\u5316 SQL \u67e5\u8be2\u7ed3\u679c\u3002<\/p>\n
<\/p>\n
Go \u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f<\/strong><\/p>\n
\u5728 Go \u5e94\u7528\u4e2d\uff0c\u7f13\u5b58\u53ef\u663e\u8457\u63d0\u5347\u6027\u80fd\u3002\u672c\u6587\u63a2\u8ba8\u4e86 Go \u6846\u67b6\u4e2d\u5e38\u7528\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5e76\u63d0\u4f9b\u5b9e\u6218\u6848\u4f8b\u3002<\/p>\n
1. \u5185\u5b58\u7f13\u5b58<\/strong><\/p>\n
    \n
  • \n
    LRU (\u6700\u8fd1\u6700\u5c11\u4f7f\u7528)<\/strong>\uff1a\u4f7f\u7528\u53cc\u5411\u94fe\u8868\u8ddf\u8e2a\u6700\u8fd1\u4f7f\u7528\u7684\u5143\u7d20\uff0c\u5f53\u8fbe\u5230\u5bb9\u91cf\u4e0a\u9650\u65f6\u79fb\u9664\u6700\u5c11\u4f7f\u7528\u7684\u5143\u7d20\u3002<\/p>\n
    import \"container\/list\"\n\ntype LRUCache struct {\n  capacity int\n  items    *list.List\n  cache    map[int]*list.Element\n}<\/pre>\n<\/li>\n<\/ul>\n
    2. \u5206\u5e03\u5f0f\u7f13\u5b58<\/strong><\/p>\n
      \n
    • \n
      Memcached<\/strong>: \u4e00\u79cd\u9ad8\u6027\u80fd\u7684\u5206\u5e03\u5f0f\u5185\u5b58\u7f13\u5b58\u3002<\/p>\n
      import \"github.com\/bradfitz\/gomemcache\/memcache\"\n\nclient := memcache.New(\"memcached:11211\")\n\/\/ ...<\/pre>\n<\/li>\n<\/ul>\n
      3. \u6570\u636e\u5e93\u7f13\u5b58<\/strong><\/p>\n
        \n
      • \n
        Redis<\/strong>: \u4e00\u79cd\u57fa\u4e8e\u5185\u5b58\u7684\u952e\u503c\u6570\u636e\u5e93\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
        import \"github.com\/gomodule\/redigo\/redis\"\n\nconn, err := redis.Dial(\"tcp\", \":6379\")\n\/\/ ...<\/pre>\n<\/li>\n<\/ul>\n
        \u5b9e\u6218\u6848\u4f8b\uff1a\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c<\/strong><\/p>\n
        \u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 LRU \u7f13\u5b58\u4f18\u5316 SQL \u67e5\u8be2\uff1a<\/p>\n
        var cachedResults = lrucache.New(100)\n\nfunc GetItemFromDB(id int) (*Item, error) {\n    \/\/ \u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6 Item\n    item, err := db.GetItem(id)\n    if err != nil {\n        return nil, err\n    }\n    \n    \/\/ \u5c06\u7ed3\u679c\u7f13\u5b58\u8d77\u6765\n    cachedResults.Add(id, item)\n    return item, nil\n}\n\nfunc GetItem(id int) (*Item, error) {\n    \/\/ \u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6 Item\n    if cachedItem, ok := cachedResults.Get(id); ok {\n        return cachedItem.(*Item), nil\n    }\n    \n    \/\/ \u7f13\u5b58\u4e2d\u6ca1\u6709\uff0c\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\n    item, err := GetItemFromDB(id)\n    return item, err\n}<\/pre>\n
        \u7ed3\u8bba<\/strong><\/p>\n
        \u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\u53ef\u4ee5\u663e\u8457\u63d0\u5347 Go \u5e94\u7528\u7684\u6027\u80fd\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e09\u79cd\u5e38\u89c1\u7684\u6a21\u5f0f\uff0c\u5e76\u63d0\u4f9b\u4e86\u5b9e\u6218\u6848\u4f8b\u6765\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u6765\u4f18\u5316\u67e5\u8be2\u7ed3\u679c\u3002<\/p>\n
        \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300agolang\u6846\u67b6\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u7f13\u5b58\u8bbe\u8ba1\u6a21\u5f0f\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8egolang,\u7f13\u5b58\u8bbe\u8ba1\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n
        \n
        \n <\/dt>\n
        \n   PHP \u51fd\u6570\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u5bf9\u8c61\u53c2\u6570\u7684\u6ce8\u610f\u4e8b\u9879\uff1f\n <\/dd>\n<\/dl>\n
        \n
        \n <\/dt>\n
        \n   \u5982\u4f55\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u4f18\u5316\u56fe\u50cf\u5904\u7406\u7b97\u6cd5\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
        \u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300agolang...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205514","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205514","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205514"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205514\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}