{"id":208305,"date":"2025-07-08T14:50:54","date_gmt":"2025-07-08T06:50:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208305\/"},"modified":"2025-07-08T14:50:54","modified_gmt":"2025-07-08T06:50:54","slug":"go-yaml-%e8%a7%a3%e6%9e%90%ef%bc%9a%e5%bf%85%e5%a1%ab%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208305\/","title":{"rendered":"Go YAML \u89e3\u6790\uff1a\u5fc5\u586b\u5b57\u6bb5"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> Go YAML \u89e3\u6790\uff1a\u5fc5\u586b\u5b57\u6bb5<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-05-01 15:18:36<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587\u300aGo YAML \u89e3\u6790\uff1a\u5fc5\u586b\u5b57\u6bb5\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6458\u8981\uff1a \u6211\u9700\u8981\u5c06 yaml \u683c\u5f0f\u7684\u6570\u636e\u89e3\u6790\u4e3a golang \u7ed3\u6784\u3002\u662f\u5426\u6709\u4e00\u79cd\u65b9\u6cd5\uff08\u5e93\u3001\u5c5e\u6027\uff09\u4f7f\u67d0\u4e9b\u5b57\u6bb5\u6210\u4e3a\u5fc5\u9700\u5b57\u6bb5\uff0c\u5373\u5982\u679c\u67d0\u4e9b\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c\u5219\u4f7f unmarshal \u51fd\u6570\u8fd4\u56de\u9519\u8bef\uff1f<\/p>\n

\u793a\u4f8b\u60f3\u8981\u4ec0\u4e48\uff1a \u6b64\u4ee3\u7801\u4e2d\u7684\u89e3\u7ec4\u51fd\u6570\u5e94\u5f15\u53d1\u9519\u8bef\uff0c\u56e0\u4e3a\u8f93\u5165\u6570\u636e\u4e0d\u5305\u542b\u201cb\u201d\u5b57\u6bb5\u3002<\/p>\n

package main\n\nimport (\n    \"fmt\"\n    \"gopkg.in\/yaml.v2\"\n)\n\ntype TestStruct struct {\n    FieldA string `yaml:\"a\"`\n    FieldB string `yaml:\"b\"`\n}\n\nfunc main() {\n    input := []byte(`{a: 1}`)\n    var output TestStruct\n\n    _ = yaml.Unmarshal(input, &output)\n}<\/pre>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u60a8\u53ef\u4ee5\u4f7f\u7528\u6b64 \u7684 haszero<\/code> \u65b9\u6cd5\u6765\u68c0\u67e5\u7ed3\u6784\u4e2d\u662f\u5426\u5b58\u5728\u7f3a\u5931\u503c\u3002\u8fd9\u5c06\u8fd4\u56de true \u6216 false\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u7ed3\u6784\u662f\u5426\u5b8c\u5168\u586b\u5145\u3002\u8bf7\u53c2\u9605\u6f14\u793a \u6765\u4e86\u89e3\u4e00\u4e0b\u3002<\/p>\n
\u4f46\u662f\u5982\u679c\u60a8\u7279\u522b\u9700\u8981\u77e5\u9053\u7f3a\u5c11\u54ea\u4e2a\u5b57\u6bb5\uff0c\u5219\u9700\u8981\u68c0\u67e5\u8be5\u503c\u662f\u5426\u4e3a nil\uff0c\u5982\u4e0b\u4f8b\u6240\u793a\u3002<\/p>\n
package main\nimport (\n   \"fmt\"\n   \"errors\"\n  \"gopkg.in\/yaml.v2\"\n)\n\ntype TestStruct struct {\n  FieldA  string `yaml:\"a\"`\n  FieldB  string `yaml:\"b\"`\n}\n\nfunc main() {\n  input := []byte(`{a: 1}`)\n\n  var output TestStruct \n  if err := output.ParseFromFile(input); err != nil {\n     fmt.Println(err)\n  }\n  fmt.Println(output)     \n}\n\nfunc (output *TestStruct) ParseFromFile(data []byte) error {\n\n  if err := yaml.Unmarshal(data, output); err != nil {\n    return err\n  }\n\n  if output.FieldA == \"\" {\n    return errors.New(\"Blank Field A\")\n  }\n  if output.FieldB == \"\" {\n    return errors.New(\"Blank Field B\")\n  }\n\n  return nil\n}<\/pre>\n
\u6f14\u793a\u5982\u679c\u9700\u8981\u4e13\u95e8\u8fd4\u56de\u9519\u8bef<\/p>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aGo YAML \u89e3\u6790\uff1a\u5fc5\u586b\u5b57\u6bb5\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\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-208305","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208305","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=208305"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208305\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}