{"id":206858,"date":"2025-06-12T13:26:13","date_gmt":"2025-06-12T05:26:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206858\/"},"modified":"2025-06-12T13:26:13","modified_gmt":"2025-06-12T05:26:13","slug":"golang-%e8%87%aa%e5%ae%9a%e4%b9%89%e7%bb%93%e6%9e%84%e4%bd%93%e6%9b%bf%e6%8d%a2%e5%ba%93%e7%bb%93%e6%9e%84%e4%bd%93%e6%97%b6%ef%bc%8c%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a1%ae%e5%a4%84%e7%90%86%e9%94%99","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206858\/","title":{"rendered":"Golang \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f"},"content":{"rendered":"

\u5b66\u4e60
\nGOLANG<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0
\n\u300aGOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230
\n<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60
\nGOLANG<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01,
\n,
\ngolang \u7ed3\u6784\u4f53\u7684\u4f7f\u7528\u95ee\u9898<\/strong>,\u5728 golang \u4e2d\uff0c\u4f7f\u7528\u81ea\u5df1\u7684\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u4e2d\u7684\u7ed3\u6784\u4f53\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u5b9e\u73b0\u4e86\u76f8\u540c\u6216\u517c\u5bb9\u7684\u63a5\u53e3\uff0c\u5426\u5219\u4f1a\u62a5\u7f16\u8bd1\u9519\u8bef\u3002,\u5728\u672c\u6587\u4f8b\u4e2d\uff0c\u4f7f\u7528\u4e86\u4ee5\u4e0b\u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\uff1a,\u7f16\u8bd1\u65f6\u62a5\u9519\uff1a,\u8fd9\u662f\u56e0\u4e3a error \u63a5\u53e3\u5b9a\u4e49\u4e86\u4e00\u4e2a error() \u65b9\u6cd5\uff0c\u800c\u81ea\u5b9a\u4e49\u7684 test1 \u7ed3\u6784\u4f53\u6ca1\u6709\u5b9e\u73b0\u5b83\u3002\u6dfb\u52a0\u4ee5\u4e0b\u5b9e\u73b0\u5373\u53ef\u89e3\u51b3\u95ee\u9898\uff1a,\u7136\u800c\uff0c\u5728\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684 test1 \u7ed3\u6784\u4f53\u540e\uff0c\u9047\u5230\u4e00\u4e2a\u65b0\u7684\u95ee\u9898\uff1a\u9519\u8bef\u4fe1\u606f\u65e0\u6cd5\u6b63\u786e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u8fd9\u662f\u56e0\u4e3a echo \u6846\u67b6\u5185\u90e8\u5bf9\u81ea\u5b9a\u4e49\u9519\u8bef\u5904\u7406\u8fdb\u884c\u4e86\u7279\u5b9a\u7684\u5904\u7406\u3002,\u4f7f\u7528 echo \u539f\u751f\u7684 httperror \u7ed3\u6784\u4f53\u65f6\uff0c\u6846\u67b6\u4f1a\u81ea\u52a8\u63d0\u53d6\u9519\u8bef\u4fe1\u606f\u5e76\u5c06\u5176\u5448\u73b0\u7ed9\u5ba2\u6237\u7aef\u3002\u4f46\u662f\uff0c\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684\u7ed3\u6784\u4f53\u65f6\uff0c\u6846\u67b6\u65e0\u6cd5\u8bc6\u522b error() \u65b9\u6cd5\uff0c\u56e0\u6b64\u65e0\u6cd5\u83b7\u53d6\u9519\u8bef\u4fe1\u606f\u3002,\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u5728\u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u4e2d\u5b9e\u73b0 marshaljson() \u65b9\u6cd5\uff0c\u4ee5\u4fbf\u6846\u67b6\u80fd\u591f\u5e8f\u5217\u5316\u9519\u8bef\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002,\u6dfb\u52a0\u6b64\u65b9\u6cd5\u540e\uff0c\u81ea\u5b9a\u4e49\u7684 test1 \u7ed3\u6784\u4f53\u5c06\u80fd\u591f\u6b63\u5e38\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u7ed9\u5ba2\u6237\u7aef\u3002,\u4ee5\u4e0a\u5c31\u662f\u300aGOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,golang \u7ed3\u6784\u4f53\u7684\u4f7f\u7528\u95ee\u9898,\u5b66\u4e60
\nGOLANG<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0
\n\u300aGOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230
\n<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60
\nGOLANG<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> GOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f<\/span><\/p>\n

GOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f<\/h1>\n

2024-11-26 11:45:56<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5b66\u4e60GOLANG<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u300aGOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60GOLANG<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

<\/p>\n

golang \u7ed3\u6784\u4f53\u7684\u4f7f\u7528\u95ee\u9898<\/strong><\/p>\n

\u5728 golang \u4e2d\uff0c\u4f7f\u7528\u81ea\u5df1\u7684\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u4e2d\u7684\u7ed3\u6784\u4f53\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u5b9e\u73b0\u4e86\u76f8\u540c\u6216\u517c\u5bb9\u7684\u63a5\u53e3\uff0c\u5426\u5219\u4f1a\u62a5\u7f16\u8bd1\u9519\u8bef\u3002<\/p>\n

\u5728\u672c\u6587\u4f8b\u4e2d\uff0c\u4f7f\u7528\u4e86\u4ee5\u4e0b\u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\uff1a<\/p>\n

type test1 struct {\n    code     int\n    message  interface{}\n    internal error \/\/ stores the error returned by an external dependency\n}<\/pre>\n
\u7f16\u8bd1\u65f6\u62a5\u9519\uff1a<\/p>\n
cannot use &test1 literal (type *test1) as type error in return argument:\n    *test1 does not implement error (missing error method)<\/pre>\n
\u8fd9\u662f\u56e0\u4e3a error \u63a5\u53e3\u5b9a\u4e49\u4e86\u4e00\u4e2a error() \u65b9\u6cd5\uff0c\u800c\u81ea\u5b9a\u4e49\u7684 test1 \u7ed3\u6784\u4f53\u6ca1\u6709\u5b9e\u73b0\u5b83\u3002\u6dfb\u52a0\u4ee5\u4e0b\u5b9e\u73b0\u5373\u53ef\u89e3\u51b3\u95ee\u9898\uff1a<\/p>\n
func (t *test1) error() string{\n    \/\/ \u81ea\u5b9a\u4e49\u9519\u8bef\u4fe1\u606f\n    return fmt.sprintf(\"code %d: %s\", t.code, t.message)\n}<\/pre>\n
\u7136\u800c\uff0c\u5728\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684 test1 \u7ed3\u6784\u4f53\u540e\uff0c\u9047\u5230\u4e00\u4e2a\u65b0\u7684\u95ee\u9898\uff1a\u9519\u8bef\u4fe1\u606f\u65e0\u6cd5\u6b63\u786e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u8fd9\u662f\u56e0\u4e3a echo \u6846\u67b6\u5185\u90e8\u5bf9\u81ea\u5b9a\u4e49\u9519\u8bef\u5904\u7406\u8fdb\u884c\u4e86\u7279\u5b9a\u7684\u5904\u7406\u3002<\/p>\n
\u4f7f\u7528 echo \u539f\u751f\u7684 httperror \u7ed3\u6784\u4f53\u65f6\uff0c\u6846\u67b6\u4f1a\u81ea\u52a8\u63d0\u53d6\u9519\u8bef\u4fe1\u606f\u5e76\u5c06\u5176\u5448\u73b0\u7ed9\u5ba2\u6237\u7aef\u3002\u4f46\u662f\uff0c\u4f7f\u7528\u81ea\u5b9a\u4e49\u7684\u7ed3\u6784\u4f53\u65f6\uff0c\u6846\u67b6\u65e0\u6cd5\u8bc6\u522b error() \u65b9\u6cd5\uff0c\u56e0\u6b64\u65e0\u6cd5\u83b7\u53d6\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n
\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u5728\u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u4e2d\u5b9e\u73b0 marshaljson() \u65b9\u6cd5\uff0c\u4ee5\u4fbf\u6846\u67b6\u80fd\u591f\u5e8f\u5217\u5316\u9519\u8bef\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n
\/\/ \u81ea\u5b9a\u4e49\u7684 MarshalJSON \u65b9\u6cd5\nfunc (t *test1) MarshalJSON() ([]byte, error) {\n    return json.Marshal(&struct {\n        Code    int         `json:\"code\"`\n        Message interface{} `json:\"message\"`\n    }{\n        Code:    t.Code,\n        Message: t.Message,\n    })\n}<\/pre>\n
\u6dfb\u52a0\u6b64\u65b9\u6cd5\u540e\uff0c\u81ea\u5b9a\u4e49\u7684 test1 \u7ed3\u6784\u4f53\u5c06\u80fd\u591f\u6b63\u5e38\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u300aGOLANG \u81ea\u5b9a\u4e49\u7ed3\u6784\u4f53\u66ff\u6362\u5e93\u7ed3\u6784\u4f53\u65f6\uff0c\u5982\u4f55\u6b63\u786e\u5904\u7406\u9519\u8bef\u4fe1\u606f\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n
\n
\n <\/dt>\n
\n   \u7d22\u5f15\u9891\u7e41\u66f4\u65b0\u5982\u4f55\u5f71\u54cd\u6570\u636e\u5e93\u6027\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u5e94\u5bf9\uff1f\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   \u5982\u4f55\u5728 Gin \u4e2d\u6269\u5c55 Context\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5b66\u4e60 GOLANG\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d...<\/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-206858","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206858","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=206858"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206858\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}