{"id":205517,"date":"2025-06-12T08:42:36","date_gmt":"2025-06-12T00:42:36","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205517\/"},"modified":"2025-06-12T08:42:36","modified_gmt":"2025-06-12T00:42:36","slug":"golang-%e6%a1%86%e6%9e%b6%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%ef%bc%9a%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%e5%92%8c%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205517\/","title":{"rendered":"Golang \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406"},"content":{"rendered":"<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aGOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01,\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u662f\u63d0\u9ad8 GOLANG \u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u7684\u5173\u952e\u7b56\u7565\u3002\u8d1f\u8f7d\u5747\u8861\u53ef\u901a\u8fc7 httputil.ReverseProxy \u5b9e\u73b0\uff0c\u5c06\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\uff0c\u9632\u6b62\u8fc7\u8f7d\u3002\u5f02\u5e38\u5904\u7406\u53ef\u901a\u8fc7 panic\/recover \u6216 Error \u7c7b\u578b\u6765\u6355\u83b7\u548c\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u9519\u8bef\uff0c\u9632\u6b62\u5d29\u6e83\u3002\u8fd9\u4e9b\u4f18\u5316\u63aa\u65bd\u53ef\u663e\u8457\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u4f8b\u5982\u5728\u7535\u5b50\u5546\u52a1\u4e2d\uff0c\u80fd\u6709\u6548\u5904\u7406\u5927\u91cf\u7528\u6237\u8bf7\u6c42\u548c\u4ea4\u6613\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729918108671c749c820a1.jpg\" class=\"aligncenter\">,<br \/>\n<strong>GOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406<\/strong>,<br \/>\n<strong>\u7b80\u4ecb<\/strong>,\u5728\u6784\u5efa\u5927\u578b GOLANG \u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u6027\u80fd\u4f18\u5316\u81f3\u5173\u91cd\u8981\u3002\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u662f\u4e24\u4e2a\u5173\u952e\u65b9\u9762\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002,<br \/>\n<strong>\u8d1f\u8f7d\u5747\u8861<\/strong>,\u8d1f\u8f7d\u5747\u8861\u53ef\u5c06\u5e94\u7528\u7a0b\u5e8f\u7684\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u4ece\u800c\u9632\u6b62\u5355\u4e2a\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<br \/>\n<code>httputil.ReverseProxy<\/code> \u4e2d\u95f4\u4ef6\u6765\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002\u4f8b\u5982\uff1a,\u5176\u4e2d\uff0c<br \/>\n<code>Targets<\/code> \u662f\u4e00\u4e2a\u6307\u5411\u76ee\u6807\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u5747\u8861\u5668\u3002,<br \/>\n<strong>\u5f02\u5e38\u5904\u7406<\/strong>,\u5f02\u5e38\u5904\u7406\u5bf9\u4e8e\u5728\u5e94\u7528\u7a0b\u5e8f\u53d1\u751f\u9519\u8bef\u65f6\u4fdd\u6301\u5176\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\u5f02\u5e38\u5904\u7406\uff1a,<br \/>\n<strong>\u5b9e\u6218\u6848\u4f8b<\/strong>,\u8003\u8651\u4ee5\u4e0b\u5b9e\u6218\u6848\u4f8b\uff1a,<br \/>\n<strong>\u573a\u666f\uff1a<\/strong>\u4e00\u4e2a\u7535\u5b50\u5546\u52a1\u7f51\u7ad9\uff0c\u9700\u8981\u5904\u7406\u5927\u91cf\u7528\u6237\u8bf7\u6c42\u548c\u4ea4\u6613\u3002,<br \/>\n<strong>\u4f18\u5316\u63aa\u65bd\uff1a<\/strong>,\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u4f18\u5316\u63aa\u65bd\uff0c\u7f51\u7ad9\u80fd\u591f\u663e\u7740\u63d0\u9ad8\u5176\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u4ece\u800c\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u597d\u7684\u4f53\u9a8c\u3002,\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u5427\uff01,\u5b9e\u73b0\u5f02\u5e38\u5904\u7406\uff0c\u4ee5\u6355\u83b7\u548c\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u9519\u8bef\uff0c\u9632\u6b62\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u3002,\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5668\u5c06\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u4ee5\u9632\u6b62\u5355\u4e2a\u670d\u52a1\u5668\u8fc7\u8f7d\u3002,<\/p>\n<p><strong>Error \u7c7b\u578b\uff1a<\/strong><\/p>\n<pre>func ErrorType() {\n  type MyError struct {\n      Code    int\n      Message string\n  }\n\n  err := &amp;MyError{\n      Code:    400,\n      Message: \"Bad Request\",\n  }\n\n  http.Error(w, err.Message, err.Code)\n}<\/pre>\n<p>,<\/p>\n<p><strong>Panic \u548c Recover\uff1a<\/strong><\/p>\n<pre>func PanicAndRecover() {\n  defer func() {\n      if err := recover(); err != nil {\n          log.Printf(\"Error: %v\", err)\n          http.Error(w, \"Internal Server Error\", http.StatusInternalServerError)\n      }\n  }()\n\n  \/\/ \u5bfc\u81f4 panic \u7684\u4ee3\u7801\n}<\/pre>\n<p>,\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aGOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01,<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 \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406<\/span><\/p>\n<h1>GOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406<\/h1>\n<p><span>2024-10-26 12:48:46<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aGOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p>\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u662f\u63d0\u9ad8 GOLANG \u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u7684\u5173\u952e\u7b56\u7565\u3002\u8d1f\u8f7d\u5747\u8861\u53ef\u901a\u8fc7 httputil.ReverseProxy \u5b9e\u73b0\uff0c\u5c06\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\uff0c\u9632\u6b62\u8fc7\u8f7d\u3002\u5f02\u5e38\u5904\u7406\u53ef\u901a\u8fc7 panic\/recover \u6216 Error \u7c7b\u578b\u6765\u6355\u83b7\u548c\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u9519\u8bef\uff0c\u9632\u6b62\u5d29\u6e83\u3002\u8fd9\u4e9b\u4f18\u5316\u63aa\u65bd\u53ef\u663e\u8457\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u4f8b\u5982\u5728\u7535\u5b50\u5546\u52a1\u4e2d\uff0c\u80fd\u6709\u6548\u5904\u7406\u5927\u91cf\u7528\u6237\u8bf7\u6c42\u548c\u4ea4\u6613\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729918108671c749c820a1.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>GOLANG \u6846\u67b6\u6027\u80fd\u4f18\u5316\uff1a\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u5728\u6784\u5efa\u5927\u578b GOLANG \u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u6027\u80fd\u4f18\u5316\u81f3\u5173\u91cd\u8981\u3002\u8d1f\u8f7d\u5747\u8861\u548c\u5f02\u5e38\u5904\u7406\u662f\u4e24\u4e2a\u5173\u952e\u65b9\u9762\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n<p><strong>\u8d1f\u8f7d\u5747\u8861<\/strong><\/p>\n<p>\u8d1f\u8f7d\u5747\u8861\u53ef\u5c06\u5e94\u7528\u7a0b\u5e8f\u7684\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u4ece\u800c\u9632\u6b62\u5355\u4e2a\u670d\u52a1\u5668\u8fc7\u8f7d\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>httputil.ReverseProxy<\/code> \u4e2d\u95f4\u4ef6\u6765\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>func Loadbalancer(w http.ResponseWriter, r *http.Request) {\n    httputil.ReverseProxy(w, r, &amp;Targets)\n}<\/pre>\n<p>\u5176\u4e2d\uff0c<code>Targets<\/code> \u662f\u4e00\u4e2a\u6307\u5411\u76ee\u6807\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u5747\u8861\u5668\u3002<\/p>\n<p><strong>\u5f02\u5e38\u5904\u7406<\/strong><\/p>\n<p>\u5f02\u5e38\u5904\u7406\u5bf9\u4e8e\u5728\u5e94\u7528\u7a0b\u5e8f\u53d1\u751f\u9519\u8bef\u65f6\u4fdd\u6301\u5176\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\u3002\u5728 GOLANG \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\u5f02\u5e38\u5904\u7406\uff1a<\/p>\n<ul>\n<li>\n<p><strong>Panic \u548c Recover\uff1a<\/strong><\/p>\n<pre>func PanicAndRecover() {\n  defer func() {\n      if err := recover(); err != nil {\n          log.Printf(\"Error: %v\", err)\n          http.Error(w, \"Internal Server Error\", http.StatusInternalServerError)\n      }\n  }()\n\n  \/\/ \u5bfc\u81f4 panic \u7684\u4ee3\u7801\n}<\/pre>\n<\/li>\n<li>\n<p><strong>Error \u7c7b\u578b\uff1a<\/strong><\/p>\n<pre>func ErrorType() {\n  type MyError struct {\n      Code    int\n      Message string\n  }\n\n  err := &amp;MyError{\n      Code:    400,\n      Message: \"Bad Request\",\n  }\n\n  http.Error(w, err.Message, err.Code)\n}<\/pre>\n<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u5b9e\u6218\u6848\u4f8b\uff1a<\/p>\n<p><strong>\u573a\u666f\uff1a<\/strong>\u4e00\u4e2a\u7535\u5b50\u5546\u52a1\u7f51\u7ad9\uff0c\u9700\u8981\u5904\u7406\u5927\u91cf\u7528\u6237\u8bf7\u6c42\u548c\u4ea4\u6613\u3002<\/p>\n<p><strong>\u4f18\u5316\u63aa\u65bd\uff1a<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5668\u5c06\u8bf7\u6c42\u5206\u5e03\u5230\u591a\u4e2a\u670d\u52a1\u5668\u4e0a\uff0c\u4ee5\u9632\u6b62\u5355\u4e2a\u670d\u52a1\u5668\u8fc7\u8f7d\u3002<\/li>\n<li>\u5b9e\u73b0\u5f02\u5e38\u5904\u7406\uff0c\u4ee5\u6355\u83b7\u548c\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u9519\u8bef\uff0c\u9632\u6b62\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u4f18\u5316\u63aa\u65bd\uff0c\u7f51\u7ad9\u80fd\u591f\u663e\u7740\u63d0\u9ad8\u5176\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u4ece\u800c\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u597d\u7684\u4f53\u9a8c\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGOLANG 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