{"id":205887,"date":"2025-06-12T11:57:02","date_gmt":"2025-06-12T03:57:02","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205887\/"},"modified":"2025-06-12T11:57:02","modified_gmt":"2025-06-12T03:57:02","slug":"golang-%e5%87%bd%e6%95%b0%e5%b9%b6%e5%8f%91%e7%bc%96%e7%a8%8b%e5%a6%82%e4%bd%95%e8%bf%9b%e8%a1%8c%e9%99%90%e6%b5%81%e5%92%8c%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205887\/","title":{"rendered":"Golang \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\uff1f"},"content":{"rendered":"<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aGOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\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,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730029296671e26f0aa9bc.jpg\" class=\"aligncenter\">,<br \/>\n<strong>Go \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u9650\u6d41\u4e0e\u8d1f\u8f7d\u5747\u8861<\/strong>,\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u5e76\u53d1\u8bf7\u6c42\u53ef\u80fd\u4f1a\u5bfc\u81f4\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\u6280\u672f\u6765\u7ba1\u7406\u5e76\u53d1\u8bf7\u6c42\u3002,<br \/>\n<strong>\u9650\u6d41<\/strong>,\u9650\u6d41\u662f\u4e00\u79cd\u6280\u672f\uff0c\u7528\u4e8e\u9650\u5236\u4f20\u5165\u8bf7\u6c42\u7684\u6570\u91cf\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u670d\u52a1\u5668\u88ab\u8fc7\u591a\u7684\u8bf7\u6c42\u538b\u57ae\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 [rate](https:\/\/godoc.org\/golang.org\/x\/time\/rate) \u5305\u6765\u5b9e\u73b0\u9650\u6d41\u3002,\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528<br \/>\n<code>rate<\/code> \u5305\u5b9e\u73b0\u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u9650\u6d41\u5668\uff1a,<br \/>\n<strong>\u8d1f\u8f7d\u5747\u8861<\/strong>,\u8d1f\u8f7d\u5747\u8861\u662f\u4e00\u79cd\u6280\u672f\uff0c\u7528\u4e8e\u5c06\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\u3002\u5b83\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<br \/>\n<code>httputil<\/code> \u548c<br \/>\n<code>reverseproxy<\/code> \u5305\u6765\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002,\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528<br \/>\n<code>httputil<\/code> \u548c<br \/>\n<code>reverseproxy<\/code> \u5305\u5b9e\u73b0\u53cd\u5411\u4ee3\u7406\u7684\u8d1f\u8f7d\u5747\u8861\u5668\uff1a,\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aGOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~GOLANG\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03GOLANG\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01,Go \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u9650\u6d41\u4e0e\u8d1f\u8f7d\u5747\u8861,\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aGOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\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,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>GOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\uff1f<\/span><\/p>\n<h1>GOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\uff1f<\/h1>\n<p><span>2024-10-27 19:41:51<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aGOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\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<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730029296671e26f0aa9bc.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Go \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u9650\u6d41\u4e0e\u8d1f\u8f7d\u5747\u8861<\/strong><\/p>\n<p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u5e76\u53d1\u8bf7\u6c42\u53ef\u80fd\u4f1a\u5bfc\u81f4\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\u6280\u672f\u6765\u7ba1\u7406\u5e76\u53d1\u8bf7\u6c42\u3002<\/p>\n<p><strong>\u9650\u6d41<\/strong><\/p>\n<p>\u9650\u6d41\u662f\u4e00\u79cd\u6280\u672f\uff0c\u7528\u4e8e\u9650\u5236\u4f20\u5165\u8bf7\u6c42\u7684\u6570\u91cf\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u670d\u52a1\u5668\u88ab\u8fc7\u591a\u7684\u8bf7\u6c42\u538b\u57ae\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 [rate](https:\/\/godoc.org\/golang.org\/x\/time\/rate) \u5305\u6765\u5b9e\u73b0\u9650\u6d41\u3002<\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 <code>rate<\/code> \u5305\u5b9e\u73b0\u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u9650\u6d41\u5668\uff1a<\/p>\n<pre>package main\n\nimport (\n    \"context\"\n    \"fmt\"\n    \"log\"\n    \"net\/http\"\n    \"time\"\n\n    \"golang.org\/x\/time\/rate\"\n)\n\nfunc main() {\n    \/\/ \u6bcf\u79d2\u5141\u8bb8 100 \u4e2a\u8bf7\u6c42\n    limiter := rate.NewLimiter(rate.Limit(100), 100)\n\n    http.HandleFunc(\"\/\", func(w http.ResponseWriter, r *http.Request) {\n        ctx := context.Background()\n\n        \/\/ \u4ece\u9650\u6d41\u5668\u83b7\u53d6\u4ee4\u724c\n        if err := limiter.Wait(ctx); err != nil {\n            http.Error(w, \"Too many requests\", http.StatusTooManyRequests)\n            return\n        }\n\n        fmt.Fprintf(w, \"Hello, World!\")\n    })\n\n    log.Fatal(http.ListenAndServe(\":8080\", nil))\n}<\/pre>\n<p><strong>\u8d1f\u8f7d\u5747\u8861<\/strong><\/p>\n<p>\u8d1f\u8f7d\u5747\u8861\u662f\u4e00\u79cd\u6280\u672f\uff0c\u7528\u4e8e\u5c06\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\u3002\u5b83\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>httputil<\/code> \u548c <code>reverseproxy<\/code> \u5305\u6765\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 <code>httputil<\/code> \u548c <code>reverseproxy<\/code> \u5305\u5b9e\u73b0\u53cd\u5411\u4ee3\u7406\u7684\u8d1f\u8f7d\u5747\u8861\u5668\uff1a<\/p>\n<pre>package main\n\nimport (\n    \"log\"\n    \"net\/http\"\n    \"net\/http\/httputil\"\n    \"net\/url\"\n)\n\nfunc main() {\n    \/\/ \u76ee\u6807\u670d\u52a1\u5668\u7684 URL \u5217\u8868\n    targets := []string{\n        \"http:\/\/localhost:8081\",\n        \"http:\/\/localhost:8082\",\n    }\n\n    \/\/ \u521b\u5efa\u53cd\u5411\u4ee3\u7406 Director\n    director := func(req *http.Request) {\n        \/\/ \u8f6e\u8be2\u9009\u62e9\u76ee\u6807\u670d\u52a1\u5668\n        target := targets[len(targets)%len(targets)]\n\n        \/\/ \u8bbe\u7f6e\u8bf7\u6c42\u7684\u8fdc\u7aef\u5730\u5740\n        req.URL.Host = target\n        req.URL.Scheme = \"http\"\n    }\n\n    \/\/ \u521b\u5efa\u53cd\u5411\u4ee3\u7406\n    proxy := httputil.NewSingleHostReverseProxy(&amp;url.URL{Scheme: \"http\", Host: \"localhost:8080\"})\n    proxy.Director = director\n\n    log.Fatal(http.ListenAndServe(\":8080\", proxy))\n}<\/pre>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aGOLANG \u51fd\u6570\u5e76\u53d1\u7f16\u7a0b\u5982\u4f55\u8fdb\u884c\u9650\u6d41\u548c\u8d1f\u8f7d\u5747\u8861\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~GOLANG\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03GOLANG\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   GOLANG \u51fd\u6570\u7684 evolution: \u63a2\u7a76\u672a\u6765\u7684\u53ef\u80fd\u6027\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Go \u51fd\u6570\u52a8\u6001\u68c0\u67e5\u7684\u5b9e\u9645\u7528\u4f8b\u63a2\u7d22\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aGOLANG&#46;&#46;&#46;<\/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-205887","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205887","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=205887"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205887\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}