{"id":205571,"date":"2025-06-12T08:13:25","date_gmt":"2025-06-12T00:13:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205571\/"},"modified":"2025-06-12T08:13:25","modified_gmt":"2025-06-12T00:13:25","slug":"go-%e4%b8%ad%e7%9a%84%e9%94%99%e8%af%af%e5%8c%85%e8%a3%85%e5%92%8c%e5%b1%95%e5%bc%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205571\/","title":{"rendered":"Go \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00"},"content":{"rendered":"<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01,\u5728 Go \u4e2d\uff0c\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u7528\u4e8e\u5904\u7406\u548c\u4f20\u9012\u9519\u8bef\u4fe1\u606f\uff0c\u589e\u5f3a\u4e86\u9519\u8bef\u7684\u7406\u89e3\u548c\u8c03\u8bd5\u3002\u9519\u8bef\u5305\u88c5\u5141\u8bb8\u6dfb\u52a0\u4e0a\u4e0b\u6587\uff0c\u800c\u9519\u8bef\u5c55\u5f00\u5219\u5141\u8bb8\u63d0\u53d6\u539f\u59cb\u9519\u8bef\u3002\u5b9e\u6218\u6848\u4f8b\u4e2d\uff0cHTTP \u5ba2\u6237\u7aef\u51fd\u6570\u5d4c\u5165\u4e86\u9519\u8bef\u4fe1\u606f\uff0c\u4f7f\u7528\u9519\u8bef\u5c55\u5f00\u53ef\u4ee5\u83b7\u53d6\u539f\u59cb\u9519\u8bef\uff0c\u65b9\u4fbf\u95ee\u9898\u6392\u67e5\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729925449671c91495b12c.jpg\" class=\"aligncenter\">,<br \/>\n<strong>Go \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00<\/strong>,\u5728 Go \u4e2d\uff0c\u9519\u8bef\u5904\u7406\u81f3\u5173\u91cd\u8981\uff0c\u7279\u522b\u662f\u5f53\u5904\u7406\u5916\u90e8\u670d\u52a1\u6216\u64cd\u4f5c\u65f6\u3002\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u5904\u7406\u548c\u4f20\u9012\u9519\u8bef\u4fe1\u606f\u3002\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u8fd9\u4e24\u4e2a\u6982\u5ff5\u53ca\u5176\u5b9e\u9645\u5e94\u7528\u3002,<br \/>\n<strong>\u9519\u8bef\u5305\u88c5<\/strong>,\u9519\u8bef\u5305\u88c5\u5141\u8bb8\u60a8\u521b\u5efa\u65b0\u7684\u9519\u8bef\uff0c\u5176\u4e2d\u5c01\u88c5\u4e86\u53e6\u4e00\u4e2a\u9519\u8bef\u3002\u8fd9\u5bf9\u4e8e\u5728\u4e0d\u4e22\u5931\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u989d\u5916\u7684\u4e0a\u4e0b\u6587\u5f88\u6709\u7528\u3002\u8981\u8fdb\u884c\u9519\u8bef\u5305\u88c5\uff0c\u8bf7\u4f7f\u7528<br \/>\n<code>errors.Wrap()<\/code> \u51fd\u6570\uff1a,\u73b0\u5728\uff0c<br \/>\n<code>wrappedErr<\/code> \u643a\u5e26\u4e86\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u548c\u9644\u52a0\u4e0a\u4e0b\u6587\u3002,<br \/>\n<strong>\u9519\u8bef\u5c55\u5f00<\/strong>,\u76f8\u53cd\uff0c\u9519\u8bef\u5c55\u5f00\u5141\u8bb8\u4ece\u5305\u88c5\u9519\u8bef\u4e2d\u63d0\u53d6\u539f\u59cb\u9519\u8bef\u3002<br \/>\n<code>errors.Unwrap()<\/code> \u51fd\u6570\u53ef\u7528\u4e8e\u6b64\u76ee\u7684\uff1a,\u73b0\u5728\uff0c<br \/>\n<code>originalErr<\/code> \u5c06\u5305\u542b\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u3002,<br \/>\n<strong>\u5b9e\u6218\u6848\u4f8b\uff1aHTTP \u5ba2\u6237\u7aef<\/strong>,\u8003\u8651\u4e0b\u9762\u5904\u7406 HTTP GET \u8bf7\u6c42\u7684\u51fd\u6570\uff1a,\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5d4c\u5165\u4e86\u9519\u8bef\u4fe1\u606f\uff0c\u5373 &#8220;failed to create HTTP request&#8221; \u548c &#8220;failed to execute HTTP request&#8221;\u3002\u8fd9\u589e\u5f3a\u4e86\u5bf9\u9519\u8bef\u7684\u7406\u89e3\uff1a,\u8fd9\u79cd\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u7684\u7ec4\u5408\u65e2\u63d0\u4f9b\u4e86\u4e0a\u4e0b\u6587\u4fe1\u606f\u53c8\u4fdd\u7559\u4e86\u539f\u59cb\u9519\u8bef\uff0c\u4ece\u800c\u7b80\u5316\u4e86\u8c03\u8bd5\u548c\u9519\u8bef\u5904\u7406\u3002,\u6587\u4e2d\u5173\u4e8e\u9519\u8bef\u5305\u88c5,\u9519\u8bef\u5c55\u5f00\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002,\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\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>Go \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00<\/span><\/p>\n<h1>Go \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00<\/h1>\n<p><span>2024-10-26 14:51:04<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p>\u5728 Go \u4e2d\uff0c\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u7528\u4e8e\u5904\u7406\u548c\u4f20\u9012\u9519\u8bef\u4fe1\u606f\uff0c\u589e\u5f3a\u4e86\u9519\u8bef\u7684\u7406\u89e3\u548c\u8c03\u8bd5\u3002\u9519\u8bef\u5305\u88c5\u5141\u8bb8\u6dfb\u52a0\u4e0a\u4e0b\u6587\uff0c\u800c\u9519\u8bef\u5c55\u5f00\u5219\u5141\u8bb8\u63d0\u53d6\u539f\u59cb\u9519\u8bef\u3002\u5b9e\u6218\u6848\u4f8b\u4e2d\uff0cHTTP \u5ba2\u6237\u7aef\u51fd\u6570\u5d4c\u5165\u4e86\u9519\u8bef\u4fe1\u606f\uff0c\u4f7f\u7528\u9519\u8bef\u5c55\u5f00\u53ef\u4ee5\u83b7\u53d6\u539f\u59cb\u9519\u8bef\uff0c\u65b9\u4fbf\u95ee\u9898\u6392\u67e5\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729925449671c91495b12c.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Go \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00<\/strong><\/p>\n<p>\u5728 Go \u4e2d\uff0c\u9519\u8bef\u5904\u7406\u81f3\u5173\u91cd\u8981\uff0c\u7279\u522b\u662f\u5f53\u5904\u7406\u5916\u90e8\u670d\u52a1\u6216\u64cd\u4f5c\u65f6\u3002\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u65b9\u6cd5\u6765\u5904\u7406\u548c\u4f20\u9012\u9519\u8bef\u4fe1\u606f\u3002\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u8fd9\u4e24\u4e2a\u6982\u5ff5\u53ca\u5176\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n<p><strong>\u9519\u8bef\u5305\u88c5<\/strong><\/p>\n<p>\u9519\u8bef\u5305\u88c5\u5141\u8bb8\u60a8\u521b\u5efa\u65b0\u7684\u9519\u8bef\uff0c\u5176\u4e2d\u5c01\u88c5\u4e86\u53e6\u4e00\u4e2a\u9519\u8bef\u3002\u8fd9\u5bf9\u4e8e\u5728\u4e0d\u4e22\u5931\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u989d\u5916\u7684\u4e0a\u4e0b\u6587\u5f88\u6709\u7528\u3002\u8981\u8fdb\u884c\u9519\u8bef\u5305\u88c5\uff0c\u8bf7\u4f7f\u7528 <code>errors.Wrap()<\/code> \u51fd\u6570\uff1a<\/p>\n<pre>import \"errors\"\n\nfunc ExampleErrorWrap() error {\n    originalErr := errors.New(\"original error\")\n    wrappedErr := errors.Wrap(originalErr, \"wrapped error\")\n    return wrappedErr\n}<\/pre>\n<p>\u73b0\u5728\uff0c<code>wrappedErr<\/code> \u643a\u5e26\u4e86\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u548c\u9644\u52a0\u4e0a\u4e0b\u6587\u3002<\/p>\n<p><strong>\u9519\u8bef\u5c55\u5f00<\/strong><\/p>\n<p>\u76f8\u53cd\uff0c\u9519\u8bef\u5c55\u5f00\u5141\u8bb8\u4ece\u5305\u88c5\u9519\u8bef\u4e2d\u63d0\u53d6\u539f\u59cb\u9519\u8bef\u3002<code>errors.Unwrap()<\/code> \u51fd\u6570\u53ef\u7528\u4e8e\u6b64\u76ee\u7684\uff1a<\/p>\n<pre>import \"errors\"\n\nfunc ExampleErrorUnwrap() error {\n    wrappedErr := errors.New(\"wrapped error\")\n    originalErr := errors.Unwrap(wrappedErr)\n    return originalErr\n}<\/pre>\n<p>\u73b0\u5728\uff0c<code>originalErr<\/code> \u5c06\u5305\u542b\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1aHTTP \u5ba2\u6237\u7aef<\/strong><\/p>\n<p>\u8003\u8651\u4e0b\u9762\u5904\u7406 HTTP GET \u8bf7\u6c42\u7684\u51fd\u6570\uff1a<\/p>\n<pre>import (\n    \"context\"\n    \"net\/http\"\n)\n\nfunc GetProduct(ctx context.Context, url string) (*http.Response, error) {\n    req, err := http.NewRequest(http.MethodGet, url, nil)\n    if err != nil {\n        return nil, errors.Wrap(err, \"failed to create HTTP request\")\n    }\n\n    resp, err := http.DefaultClient.Do(req)\n    if err != nil {\n        return nil, errors.Wrap(err, \"failed to execute HTTP request\")\n    }\n\n    return resp, nil\n}<\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5d4c\u5165\u4e86\u9519\u8bef\u4fe1\u606f\uff0c\u5373 &#8220;failed to create HTTP request&#8221; \u548c &#8220;failed to execute HTTP request&#8221;\u3002\u8fd9\u589e\u5f3a\u4e86\u5bf9\u9519\u8bef\u7684\u7406\u89e3\uff1a<\/p>\n<pre>resp, err := GetProduct(ctx, url)\nif err != nil {\n    unwrappedErr := errors.Unwrap(err)\n    fmt.Println(unwrappedErr) \/\/ \"failed to create HTTP request\" \u6216 \"failed to execute HTTP request\"\n}<\/pre>\n<p>\u8fd9\u79cd\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u7684\u7ec4\u5408\u65e2\u63d0\u4f9b\u4e86\u4e0a\u4e0b\u6587\u4fe1\u606f\u53c8\u4fdd\u7559\u4e86\u539f\u59cb\u9519\u8bef\uff0c\u4ece\u800c\u7b80\u5316\u4e86\u8c03\u8bd5\u548c\u9519\u8bef\u5904\u7406\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u9519\u8bef\u5305\u88c5,\u9519\u8bef\u5c55\u5f00\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u4e2d\u7684\u9519\u8bef\u5305\u88c5\u548c\u5c55\u5f00\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   PHP \u51fd\u6570\u4e2d\u5982\u4f55\u4f7f\u7528\u5f15\u7528\uff1a\u7406\u89e3\u5f15\u7528\u751f\u547d\u5468\u671f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   golang\u6846\u67b6\u4e0eWebAssembly\u6846\u67b6\u7684\u8de8\u5e73\u53f0\u6f5c\u529b\n 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