{"id":208212,"date":"2025-07-08T17:31:54","date_gmt":"2025-07-08T09:31:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208212\/"},"modified":"2025-07-08T17:31:54","modified_gmt":"2025-07-08T09:31:54","slug":"golang-%e5%87%bd%e6%95%b0%e4%b8%ad%e7%9a%84%e8%a3%b8%e8%bf%94%e5%9b%9e%e6%b2%a1%e6%9c%89%e5%91%bd%e5%90%8d%e8%bf%94%e5%9b%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208212\/","title":{"rendered":"golang \u51fd\u6570\u4e2d\u7684\u88f8\u8fd4\u56de\u6ca1\u6709\u547d\u540d\u8fd4\u56de"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> golang \u51fd\u6570\u4e2d\u7684\u88f8\u8fd4\u56de\u6ca1\u6709\u547d\u540d\u8fd4\u56de<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-30 12:48:36<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5404\u4f4d\u5c0f\u4f19\u4f34\u4eec\uff0c\u5927\u5bb6\u597d\u5440\uff01\u770b\u770b\u4eca\u5929\u6211\u53c8\u7ed9\u5404\u4f4d\u5e26\u6765\u4e86\u4ec0\u4e48\u6587\u7ae0\uff1f\u672c\u6587\u6807\u9898\u662f<\/span>\u300agolang \u51fd\u6570\u4e2d\u7684\u88f8\u8fd4\u56de\u6ca1\u6709\u547d\u540d\u8fd4\u56de\u300b<\/span>\uff0c\u5f88\u660e\u663e\u662f\u5173\u4e8eGolang<\/span>\u7684\u6587\u7ae0\u54c8\u54c8\u54c8\uff0c\u5176\u4e2d\u5185\u5bb9\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\uff0c\u5982\u679c\u80fd\u5e2e\u5230\u4f60\uff0c\u89c9\u5f97\u5f88\u4e0d\u9519\u7684\u8bdd\uff0c\u6b22\u8fce\u5404\u4f4d\u591a\u591a\u70b9\u8bc4\u548c\u5206\u4eab\uff01<\/span><\/p>\n

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

\u6211\u5df2\u7ecf\u7ecf\u5386\u4e86\u4e00\u4e9b\u88f8\u9732\u56de\u62a5\/\u547d\u540d\u56de\u62a5\uff08\u6b64\u5904\uff09\u548c\u7c7b\u4f3c\u7684\u95ee\u9898\uff0c\u4f46\u5bf9\u6211\u5bf9\u88f8\u9732\u56de\u62a5\u7684\u7406\u89e3\u4ecd\u7136\u5b58\u5728\u4e00\u4e9b\u7591\u95ee\u3002\u4e0b\u9762\u662f\u6211\u4f7f\u7528\u7684rest api \u4e66\u4e2d\u7684\u4ee3\u7801\u7247\u6bb5<\/p>\n

package main\nimport (\n...\n  \"github.com\/julienschmidt\/httprouter\"\n)\n\nfunc main() {\n  router := httprouter.New()\n  router.GET(\"\/api\/v1\/go-version\", showVersion)\n  router.GET(\"\/api\/v1\/show-file\/:name\", getFileContent)\n  log.Fatal(http.ListenAndServe(\":8000\", router))\n}\nfunc getCommandOutput(command string, arguments ...string) string {\n  out, _ := exec.Command(command, arguments...).Output()\n  return string(out)\n}\n\nfunc showVersion(w http.ResponseWriter, r *http.Request, params httprouter.Params) {\n  response := getCommandOutput(\"\/usr\/local\/go\/bin\/go\", \"version\")\n  io.WriteString(w, response)\n  return   \/\/\/ what does this \"return\" give\/do ?\n}\n\nfunc getFileContent(w http.ResponseWriter, r *http.Request, params httprouter.Params) {\n  fmt.Fprintf(w, getCommandOutput(\"\/bin\/cat\", params.ByName(\"name\")))\n}<\/pre>\n
\u4e3a\u4ec0\u4e48func showversion<\/strong>\u4e2d\u4f7f\u7528\u88f8\u8fd4\u56de\uff1f<\/em><\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u6211\u4e0d\u786e\u5b9a\u60a8\u9009\u62e9\u4e86\u6b63\u786e\u7684\u793a\u4f8b\u3002 showVersion<\/code>i \u4e2d\u7684 return<\/code> \u4e0d\u662f\u88f8\u9732\u7684\u8fd4\u56de\uff0c\u56e0\u4e3a showVersion \u4e0d\u8fd4\u56de\u4efb\u4f55\u5185\u5bb9\u3002\u5f53\u51fd\u6570\u7b7e\u540d\u4e2d\u7ed9\u5b9a\u8fd4\u56de\u7c7b\u578b\u6807\u8bc6\u7b26\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u201c\u88f8\u8fd4\u56de\u201d\u3002\u8fd4\u56de\u503c\u5728\u51fd\u6570\u58f0\u660e\u65f6\u547d\u540d\uff0c\u4e0d\u5fc5\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\u58f0\u660e\u3002 showVersion<\/code> \u4e2d\u7684 return<\/code> \u4e0d\u662f\u8d64\u88f8\u88f8\u7684\uff0c\u56e0\u4e3a showVersion<\/code> \u7684\u58f0\u660e\u6ca1\u6709\u547d\u540d\u7ed3\u679c\u3002 showVersion<\/code> \u4e2d\u7684 return<\/code> \u6240\u505a\u7684\u6240\u6709\u4e8b\u60c5\u5c31\u662f\u544a\u8bc9\u8fdb\u7a0b\u9000\u51fa\u8be5\u51fd\u6570\u3002\u751a\u81f3\u4e0d\u9700\u8981\u3002<\/p>\n
\u4f46\u662f\uff0c\u5c31\u547d\u540d\u7ed3\u679c\u548c\u88f8\u8fd4\u56de\u800c\u8a00\uff0c\u5b83\u4eec\u672c\u8d28\u4e0a\u662f\u4e3a\u4e86\u7b80\u6d01\u548c\u4ee3\u7801\u6e05\u6670\u800c\u5b58\u5728\uff08\u8bf7\u53c2\u9605\uff09\u3002\u60a8\u4e0d\u5fc5\u4f7f\u7528\u547d\u540d\u7ed3\u679c\u548c\u88f8\u8fd4\u56de\u3002\u7136\u800c\uff0c\u6587\u6863\u8868\u660e\u5b83\u662f\u201c\u60ef\u7528\u7684\u201d\uff0c\u8fd9\u4e5f\u662f Go \u4ee3\u7801\u5e94\u8be5\u52aa\u529b\u505a\u5230\u7684\u3002<\/p>\n
\u4f46\u662f\uff0c\u4e0e\u6240\u6709\u5efa\u8bae\u4e00\u6837\uff0c\u60a8\u9700\u8981\u786e\u5b9a\u5b83\u662f\u5426\u786e\u5b9e\u662f\u6709\u6548\u7684\u7f16\u7801\u3002\u547d\u540d\u7ed3\u679c\u771f\u7684\u80fd\u8ba9\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\u5417\uff1f\u6211\u8ba4\u4e3a\u662f\u7684\uff0c\u56e0\u4e3a\u5b83\u66f4\u6e05\u695a\u5730\u8868\u660e\u4e86\u8be5\u51fd\u6570\u7684\u76ee\u7684\u662f\u4ec0\u4e48\u3002\u6211\u662f\u5426\u4f7f\u7528\u547d\u540d\u7ed3\u679c\uff1f\u4e5f\u8bb8\uff0c\u4e0d\u50cf\u6211\u5e94\u8be5\u7684\u90a3\u4e48\u9891\u7e41\u3002<\/p>\n
\u5982\u679c\u60a8\u60f3\u8981\u4e00\u4e2a\u660e\u786e\u7684\u6307\u5357\uff08\u8d85\u8d8aEffective Go\uff09\uff0c\u8bf7\u67e5\u770b\u3002\u5b83\u4f7f\u7528\u547d\u540d\u7ed3\u679c\u548c\u88f8\u8fd4\u56de\u5417\uff1f\u8bb0\u4e0b\u9891\u7387\u548c\u539f\u56e0\u3002\u5f53\u4ed6\u4eec\u4e0d\u4f7f\u7528\u5b83\u4eec\u65f6\uff0c\u5c1d\u8bd5\u627e\u51fa\u539f\u56e0\u3002\u60a8\u5c06\u6536\u96c6\u6700\u4f73\u5b9e\u8df5\u3002\u60a8\u53ef\u80fd\u8fd8\u60f3\u67e5\u770b\u70ed\u95e8 Go \u5e93\u7684\u5b58\u50a8\u5e93\uff0c\u4f8b\u5982 \u3002\u7531\u4e8e\u793e\u533a\u53cd\u9988\uff0cGo \u8bed\u8a00\u6b63\u5728\u4e0d\u65ad\u53d1\u5c55\u548c\u6539\u8fdb\u3002<\/p>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300agolang \u51fd\u6570\u4e2d\u7684\u88f8\u8fd4\u56de\u6ca1\u6709\u547d\u540d\u8fd4\u56de\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-208212","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208212","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=208212"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208212\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}