{"id":44335,"date":"2023-07-22T07:04:41","date_gmt":"2023-05-01T18:48:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%8e%a8%e8%8d%90%e4%bd%bf%e7%94%a8golang%e8%bf%9b%e8%a1%8c%e5%bc%80%e5%8f%91\/"},"modified":"2024-04-30T14:47:59","modified_gmt":"2024-04-30T06:47:59","slug":"%e6%8e%a8%e8%8d%90%e4%bd%bf%e7%94%a8golang%e8%bf%9b%e8%a1%8c%e5%bc%80%e5%8f%91","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%8e%a8%e8%8d%90%e4%bd%bf%e7%94%a8golang%e8%bf%9b%e8%a1%8c%e5%bc%80%e5%8f%91\/","title":{"rendered":"\u63a8\u8350\u4f7f\u7528Golang\u8fdb\u884c\u5f00\u53d1"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u52a0\u5165\u4e86PJ\u9879\u76ee\uff0c\u5728\u5176\u4e2d\u6784\u5efa\u4e00\u4e2a\u57fa\u4e8egolang\u548cgPRC\u7684API\uff0c\u6211\u82b1\u4e86\u5927\u7ea63\u4e2a\u6708\u7684\u65f6\u95f4\u5b66\u4e60\u4e86Go\u8bed\u8a00\uff0c\u6240\u4ee5\u6211\u4f1a\u603b\u7ed3\u51fa\u5f00\u53d1Go\u65f6\u9700\u8981\u6ce8\u610f\u7684\u8981\u70b9\u3002\u8fd9\u7bc7\u6587\u7ae0\u7684\u76ee\u6807\u8bfb\u8005\u662f\u521a\u5f00\u59cb\u4f7f\u7528Go\u8fdb\u884c\u5f00\u53d1\u7684\u4eba\uff0c\u6216\u8005\u5df2\u7ecf\u5f00\u59cb\u4f7f\u7528Go\u5f00\u53d1\u4e00\u6bb5\u65f6\u95f4\u7684\u4eba\uff0c\u5c31\u50cf\u6211\u4e00\u6837\u3002<\/p>\n

\u6211\u8bd5\u7528\u4e86\u4e00\u6bb5\u65f6\u95f4Go\u8bed\u8a00\u540e\u7684\u611f\u53d7\u662f\uff0cGo\u8bed\u8a00\u5728\u81ea\u7531\u5ea6\u65b9\u9762\u65e0\u8bba\u662f\u597d\u4e5f\u597d\u574f\u4e5f\u597d\uff0c\u90fd\u7ed9\u4eba\u4e00\u79cd\u4e3b\u5f20\u5f3a\u70c8\u7684\u8bed\u8a00\u7684\u5370\u8c61\u3002\u7531\u4e8e\u6ca1\u6709\u6cdb\u578b\uff0c\u6709\u65f6\u9700\u8981\u5199\u591a\u4e2a\u53ea\u662f\u7c7b\u578b\u4e0d\u540c\u7684\u7c7b\u4f3c\u590d\u5236\u7c98\u8d34\u7684\u4ee3\u7801\uff0c\u8fd9\u53ef\u80fd\u4f1a\u8ba9\u4eba\u611f\u5230\u70e6\u607c\uff1b\u8fd8\u6709\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5f3a\u5236\u4f7f\u7528\u5236\u8868\u7b26\u4ee3\u66ff\u7a7a\u683c\u4e5f\u53ef\u80fd\u4f1a\u8ba9\u4eba\u611f\u5230\u4e0d\u60a6\u3002\u867d\u7136\u6709\u4eba\u8bf4\u201c\u5165\u90f7\u800c\u4ece\u90f7\u201d\uff08\u9d5c\u98fc\u6587\u654f\u5148\u751f\uff09\uff0c\u8ba4\u4e3a\u8fd9\u5c31\u662fGo\u7684\u7279\u8272\uff0c\u6211\u4e5f\u8ba4\u4e3a\u6216\u8bb8\u786e\u5b9e\u5982\u6b64\u3002<\/p>\n

\u5173\u4e8e\u5f00\u53d1\u73af\u5883<\/h1>\n

\u4e3b\u8981\u5173\u6ce8\u5f00\u53d1\u73af\u5883\u548c\u5de5\u5177\u65b9\u9762\u7684\u8981\u70b9<\/p>\n

\u4f7f\u7528 Go Modules<\/h2>\n

\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u6709\u4e00\u4e2a\u7279\u6b8a\u7684\u6982\u5ff5\u53eb\u505a GOPATH\u3002\u8fd9\u610f\u5473\u7740\u6240\u6709\u7684 Go \u4ee3\u7801\uff0c\u5305\u62ec\u7b2c\u4e09\u65b9\u5e93\uff0c\u90fd\u5fc5\u987b\u653e\u5728 $GOPATH\/src \u76ee\u5f55\u4e0b\u3002<\/p>\n

\u6211\u8ba4\u4e3a\uff0c\u4f5c\u4e3a\u804c\u4e1a\u5de5\u7a0b\u5e08\uff0c\u6211\u4eec\u5e0c\u671b\u5c06\u4ee3\u7801\u6839\u636e\u9879\u76ee\u6216\u5ba2\u6237\u8fdb\u884c\u5206\u7c7b\u800c\u4e0d\u662f\u6839\u636e\u6a21\u5757\u7684\u540d\u79f0\u8fdb\u884c\u5206\u7c7b\u3002\u8981\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0cGo 1.11\u5f15\u5165\u4e86Go Modules\u6a21\u5f0f\u3002\u901a\u8fc7\u542f\u7528Go Modules\u6a21\u5f0f\uff0c\u60a8\u5c06\u4e0d\u518d\u53d7\u5230\u4ee3\u7801\u5b58\u653e\u4f4d\u7f6e\u7684\u9650\u5236\u3002\u8981\u542f\u7528\u6b64\u6a21\u5f0f\uff0c\u8bf7\u5c06\u73af\u5883\u53d8\u91cf\u4e2d\u7684GO111MODULE=on\u8bbe\u7f6e\u6dfb\u52a0\u8fdb\u53bb\u3002<\/p>\n

$ export GO111MODULE=on\r\n<\/code><\/pre>\n
\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u636e\u8bf4\u5728Go 1.13\u4e2d\uff0cGo\u6a21\u5757\u6a21\u5f0f\u9ed8\u8ba4\u662f\u542f\u7528\u76841\u3002
\n\u4e0a\u8ff0\u7684\u73af\u5883\u53d8\u91cf\u53ef\u80fd\u662f\u4e0d\u5fc5\u8981\u7684\u3002<\/p>\n
\u4e3a\u4e86\u4f7f\u7528Go Modules\uff0c\u9700\u8981\u4f7f\u7528init\u547d\u4ee4\u6765\u751f\u6210go.mod\u6587\u4ef6\u3002<\/p>\n
$ go mod init <module\u540d>\r\n<\/code><\/pre>\n
\u8bf7\u8f93\u5165\u5b9e\u9645\u90e8\u7f72\u8be5\u6a21\u5757\u7684\u57df\u540d\u4f5c\u4e3a\u6a21\u5757\u540d\u79f0\u3002
\n\u4f8b\u5982\uff0c\u5728GitHub\u4e0a\u8fdb\u884c\u5f00\u53d1\uff0c\u6a21\u5757\u540d\u79f0\u53ef\u80fd\u662f\u7c7b\u4f3c\u4e8egithub.com\/tomtwinkle\/go-sample\u7684\u8def\u5f84\u3002<\/p>\n
\u4f7f\u7528 Go Modules \u53ef\u4ee5\u53c2\u8003\u672c\u5730\u4ed3\u5e93\u3002<\/h2>\n
\u5f53\u5728\u4f7f\u7528Go Modules\u6a21\u5f0f\u8fdb\u884c\u5f00\u53d1\uff0c\u50cfGoland\u7b49IDE\u65f6\uff0c\u4f1a\u67e5\u770bgo.mod\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u7136\u540e\u81ea\u52a8\u83b7\u53d6\u6700\u65b0\u7684\u6a21\u5757\u5230master\u5206\u652f\u3002\u7136\u800c\uff0c\u5982\u679c\u8fd8\u5728\u5f00\u53d1\u4f9d\u8d56\u7684\u5e93\uff0c\u8fd9\u6837\u505a\u53ef\u80fd\u4f1a\u5bfc\u81f4\u56f0\u6270\u3002\u56e0\u6b64\uff0c\u6709\u65f6\u5019\u5e0c\u671b\u80fd\u591f\u5f15\u7528\u672c\u5730\u6b63\u5728\u5f00\u53d1\u7684\u76ee\u5f55\u3002<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u5728 go.mod \u6587\u4ef6\u4e2d\u6dfb\u52a0 replace => \u7684\u914d\u7f6e\u6765\u5f15\u7528\u672c\u5730\u76ee\u5f55\uff0c\u8fbe\u5230\u8be5\u76ee\u7684\u3002<\/p>\n
module github.com\/tomtwinkle\/go-sample\r\n\r\ngo 1.13\r\n\r\nreplace github.com\/tomtwinkle\/go-lib => ..\/go-lib\r\n\r\nrequire (\r\n    github.com\/tomtwinkle\/go-lib v1.0.0\r\n)\r\n<\/code><\/pre>\n
\u5728\u8fdb\u884c\u63a8\u9001\u4e4b\u524d\u8fdb\u884c go fmt \u548c go vet \u7684\u64cd\u4f5c\u3002<\/h2>\n
\u8fd9\u662f\u5173\u4e8e\u5f00\u53d1\u73af\u5883\u7684\u89c4\u5219\uff0c\u66f4\u50cf\u662f\u9075\u5b88\u5b83\u5c06\u4f7f\u81ea\u5df1\u548c\u5176\u4ed6\u6210\u5458\u53d8\u5f97\u66f4\u52a0\u5e78\u798f\u7684\u89c4\u5219\u3002
\n\u5728Go\u7684\u6807\u51c6\u5de5\u5177\u4e2d\u6709\u4e00\u4e2a\u53eb\u505a”go fmt”\u548c”go vet”\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u548c\u4ee3\u7801\u68c0\u67e5\u5de5\u5177\u3002
\n\u5728\u5c06\u4ee3\u7801\u63a8\u9001\u5230\u4ed3\u5e93\u4e4b\u524d\uff0c\u8bf7\u52a1\u5fc5\u4f7f\u7528\u4e0a\u8ff0\u4e24\u4e2a\u547d\u4ee4\u5bf9\u4ee3\u7801\u8fdb\u884c\u683c\u5f0f\u5316\u548c\u4fee\u590d\u8bed\u6cd5\u9519\u8bef\u3002<\/p>\n
\u5728\u672c\u5730\u73af\u5883\u4e0b\u6267\u884cgo fmt\u662f\u4e2a\u597d\u9009\u62e9\u3002
\n\u6216\u8bb8\u53ef\u4ee5\u5c06go vet\u6574\u5408\u5230CI\u4e2d\u3002<\/p>\n
\u6bcf\u6b21\u90fd\u4f1a\u5fd8\u8bb0\u6572\u95e8\u7684\u4eba\uff0c\u50cf\u4e0b\u9762\u7684\u6587\u7ae0\u6240\u8ff0\uff0c\u4f3c\u4e4e\u6700\u597d\u662f\u5728git\u7684pre-commit\u4e0a\u521b\u5efa\u4e00\u4e2ahook\u811a\u672c\u3002
\n\u5728\u4f7f\u7528git\u7ba1\u7406Go\u8bed\u8a00\u7a0b\u5e8f\u65f6\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
\u5c06\u4ec5\u5728\u5185\u90e8\u4f7f\u7528\u7684\u8f6f\u4ef6\u5305\u653e\u7f6e\u5728\u5185\u90e8\u7684”internal”\u4e2d\u3002<\/h2>\n
\u4ee5\u4e0b\u7684\u7f51\u7ad9\u53ef\u4ee5\u53c2\u8003\u4e86\u89e3\u5185\u90e8 package \u662f\u4ec0\u4e48\uff1a
\nhttps:\/\/mattn.kaoriya.net\/software\/lang\/go\/20150820102400.htm<\/p>\n
    \n
  • \n
      internal\/hoge<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        internal\/fuga<\/ul>\n
        \u5c06hoge fuga\u5305\u5728internal\u4e2d\u8bbe\u7f6e\u4e3a\u79c1\u6709\uff0c\u5982\u679c\u4ece\u5916\u90e8\u5f15\u7528\u5c06\u4f1a\u5bfc\u81f4\u9519\u8bef\u3002<\/p>\n
        \u4f7f\u7528 GoLand<\/h2>\n
        \u8fd9\u662f\u4e00\u53e5\u76f4\u622a\u4e86\u5f53\u7684\u8bdd\uff0c\u5982\u679c\u8981\u4f7f\u7528Go\u8fdb\u884c\u5f00\u53d1\uff0c\u5c31\u4f7f\u7528JetBrains\u7684GoLand\u5427\u3002
        \nGoLand\u672c\u8eab\u4e5f\u5f88\u5bb9\u6613\u4f7f\u7528\uff0c\u4f46\u5b83\u4e4b\u6240\u4ee5\u5438\u5f15\u4eba\u662f\u56e0\u4e3a\u5b83\u6709\u5b8c\u6574\u7684\u4e3aGo\u5f00\u53d1\u51c6\u5907\u7684\u63d2\u4ef6\u3002
        \n\u4f7f\u7528File Watchers\u63d2\u4ef6\uff0c\u5728\u6587\u4ef6\u4fdd\u5b58\u65f6\u81ea\u52a8\u6267\u884cgo fmt\u548cgo vet\uff0c\u4ec5\u4ec5\u8fd9\u6837\u5c31\u53ef\u4ee5\u63d0\u9ad8\u751f\u4ea7\u6548\u7387\u7ea61.2\u500d\uff08\u4e2a\u4eba\u7ecf\u9a8c\uff09\u3002
        \n\u203b\u672c\u6587\u7eaf\u5c5e\u4e2a\u4eba\u89c2\u70b9\uff0c\u4e0e\u6211\u7684\u96c7\u4e3b\u6beb\u65e0\u5173\u7cfb\u3002<\/p>\n
        \u6709\u5173\u5f00\u53d1\u65f6\u7684\u4ee3\u7801\u548c\u5ba1\u67e5\u8981\u70b9<\/h1>\n
        \u5305\u88dd\u7d50\u69cb<\/h2>\n
        \u73b0\u5728\u7684\u9879\u76ee\u5728\u53c2\u8003\u4ee5\u4e0b\u5185\u5bb9\u7684\u57fa\u7840\u4e0a\uff0c\u6839\u636e\u6e05\u6670\u67b6\u6784\u7684\u6982\u5ff5\u6784\u5efa\u8f6f\u4ef6\u5305\u7ed3\u6784\u3002
        \nhttps:\/\/github.com\/golang-standards\/project-layout<\/p>\n
        \u5173\u4e8e Clean Architecture\uff0c\u5728\u8fd9\u91cc\u5199\u8d77\u6765\u592a\u957f\uff0c\u6240\u4ee5\u4ee5\u540e\u518d\u8bf4\u3002
        \n\u5982\u679c\u4f7f\u7528 Go Modules\uff0c\u4e0a\u8ff0\u7684 vendor \u6587\u4ef6\u5939\u662f\u4e0d\u5fc5\u8981\u7684\u3002<\/p>\n
        \u9519\u8bef\u5904\u7406<\/h2>\n
        \u7531\u4e8eGo\u8bed\u8a00\u4e2d\u6ca1\u6709\u5f02\u5e38\u5904\u7406\u673a\u5236\uff0c\u50cf\u5176\u4ed6\u8bed\u8a00\u4e2d\u7684try\/catch\u90a3\u6837\u6355\u83b7\u51fd\u6570\u5185\u53d1\u751f\u7684\u6240\u6709\u9519\u8bef\u662f\u4e0d\u592a\u53ef\u80fd\u7684\uff08\u5c3d\u7ba1\u901a\u8fc7panic\/recover\u673a\u5236\u53ef\u4ee5\u5b9e\u73b0\uff09\u3002\u6211\u8ba4\u4e3apanic\u5e94\u8be5\u53ea\u5728\u771f\u6b63\u4e25\u91cd\u5230\u5fc5\u987b\u505c\u6b62\u7cfb\u7edf\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\uff0c\u800c\u4e0d\u662f\u7528\u4e8e\u5176\u4ed6\u975e\u5e38\u4e25\u91cd\u7684\u9519\u8bef\u3002\u81f3\u5c11\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u8fd8\u6ca1\u6709\u9047\u5230\u8fc7\u5fc5\u987b\u7f16\u5199recover\u7684\u4ee3\u7801\u673a\u4f1a\u3002<\/p>\n
        \u867d\u7136\u5173\u4e8eGo\u8bed\u8a00\u7684\u9519\u8bef\u5904\u7406\u5df2\u7ecf\u5728\u5176\u4ed6\u7f51\u7ad9\u4e0a\u88ab\u8ba8\u8bba\u5f97\u5f88\u591a\u4e86\uff0c\u4f46\u662f\u5982\u679c\u638c\u63e1\u4ee5\u4e0b\u8981\u70b9\uff0c\u4f1a\u5f88\u6709\u5e2e\u52a9\u3002<\/p>\n
          \n
        1. \n
            \u5728\u9519\u8bef\u53d1\u751f\u540e\uff0c\u7acb\u5373\u8fd4\u56de\u5e76\u4e0d\u7ed9\u4e88\u5904\u7406\u7684\u4f59\u5730\u3002<\/ol>\n<\/li>\n<\/ol>\n
             <\/p>\n
              \n
            1. \n
                \u5728\u4ea7\u751f\u9519\u8bef\u65f6\uff0c\u5c3d\u91cf\u5c06\u51fd\u6570\u5185\u7684\u4fe1\u606f\u8fdb\u884c\u5305\u88c5\u3002<\/ol>\n<\/li>\n<\/ol>\n
                 <\/p>\n
                  \n
                1. \n
                    \u5728\u8fd4\u56de\u9519\u8bef\u65f6\uff0c\u52a1\u5fc5\u5c06\u8be5\u9519\u8bef\u8bb0\u5f55\u5230\u5806\u6808\u4e2d\u3002<\/ol>\n<\/li>\n<\/ol>\n
                     <\/p>\n
                      \n
                    1. \n
                        \u4f7f\u7528pkg\/errors\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u5904\u7406\u4e0a\u8ff0\u60c5\u51b5\u3002<\/ol>\n<\/li>\n<\/ol>\n
                         <\/p>\n
                          \u9519\u8bef\u65e5\u5fd7\u5e94\u5c3d\u91cf\u5728\u9760\u8fd1\u4e3b\u8981\u4ee3\u7801\u7684\u4f4d\u7f6e\u8fdb\u884c\u96c6\u4e2d\u5904\u7406\u3002<\/ol>\n
                          NG\u6a21\u5f0f<\/h3>\n
                          func<\/span> main<\/span>()<\/span> {<\/span>\r\n    ctx<\/span> :=<\/span> context<\/span>.<\/span>Background<\/span>()<\/span>\r\n    sample<\/span>(<\/span>ctx<\/span>)<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> sample<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>)<\/span> {<\/span>\r\n    logger<\/span> :=<\/span> ctxzap<\/span>.<\/span>Extract<\/span>(<\/span>ctx<\/span>)<\/span>\r\n\r\n    user<\/span>,<\/span> err<\/span> :=<\/span> getUser<\/span>()<\/span>\r\n    if<\/span> err<\/span> ==<\/span> nil<\/span> &&<\/span> user<\/span> !=<\/span> nil<\/span> {<\/span>\r\n        logger<\/span>.<\/span>Info<\/span>(<\/span>fmt<\/span>.<\/span>Sprintf<\/span>(<\/span>\"I'm %s !\"<\/span>,<\/span> user<\/span>.<\/span>firstName<\/span>))<\/span>\r\n    }<\/span>\r\n    if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n        logger<\/span>.<\/span>Error<\/span>(<\/span>err<\/span>.<\/span>Error<\/span>())<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                          \u5728\u8c03\u7528 getUser() \u51fd\u6570\u540e\u6355\u83b7\u4e86\u9519\u8bef\u4e4b\u540e\uff0c\u7acb\u5373\u653e\u5165\u67d0\u79cd\u5904\u7406\uff0c\u5b9e\u9645\u4e0a\u53ef\u80fd\u4e0d\u4f1a\u8fdb\u5165\u8be5\u5904\u7406\u6d41\u7a0b\uff0c\u4f46\u901a\u8fc7\u529f\u80fd\u589e\u52a0\u7b49\u53ef\u80fd\u4e0d\u518d\u4fdd\u8bc1\u3002<\/p>\n
                          \u597d\u7684\u6a21\u5f0f<\/h3>\n
                          func<\/span> main<\/span>()<\/span> {<\/span>\r\n    ctx<\/span> :=<\/span> context<\/span>.<\/span>Background<\/span>()<\/span>\r\n    logger<\/span> :=<\/span> ctxzap<\/span>.<\/span>Extract<\/span>(<\/span>ctx<\/span>)<\/span>\r\n    err<\/span> :=<\/span> sample<\/span>(<\/span>ctx<\/span>)<\/span>\r\n    if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n        logger<\/span>.<\/span>Error<\/span>(<\/span>fmt<\/span>.<\/span>Sprintf<\/span>(<\/span>\"%+v\"<\/span>,<\/span> err<\/span>))<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> sample<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>)<\/span> error<\/span> {<\/span>\r\n    hoge<\/span> :=<\/span> \"sample\"<\/span>\r\n    err<\/span> :=<\/span> sampleChild<\/span>(<\/span>ctx<\/span>,<\/span> hoge<\/span>)<\/span>\r\n    if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n        return<\/span> errors<\/span>.<\/span>WithStack<\/span>(<\/span>err<\/span>)<\/span>\r\n    }<\/span>\r\n    return<\/span> nil<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> sampleChild<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>,<\/span> hoge<\/span> string<\/span>)<\/span> error<\/span> {<\/span>\r\n    logger<\/span> :=<\/span> ctxzap<\/span>.<\/span>Extract<\/span>(<\/span>ctx<\/span>)<\/span>\r\n\r\n    user<\/span>,<\/span> err<\/span> :=<\/span> getUser<\/span>(<\/span>hoge<\/span>)<\/span>\r\n    if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n        return<\/span> errors<\/span>.<\/span>Wrapf<\/span>(<\/span>err<\/span>,<\/span> \"user not found. arg=%s\"<\/span>,<\/span> hoge<\/span>)<\/span>\r\n    }<\/span>\r\n    logger<\/span>.<\/span>Info<\/span>(<\/span>fmt<\/span>.<\/span>Sprintf<\/span>(<\/span>\"I'm %s !\"<\/span>,<\/span> user<\/span>.<\/span>firstName<\/span>))<\/span>\r\n    return<\/span> nil<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                          \u5728\u8c03\u7528\u8fd4\u56de\u9519\u8bef\u7684\u51fd\u6570\u540e\uff0c\u7acb\u5373\u4f7f\u7528`if err != nil {}`\u6765\u68c0\u67e5\u9519\u8bef\u7684\u5b58\u5728\u4e0e\u5426\uff0c\u5e76\u4e14\u5982\u679c\u662f\u9519\u8bef\u7684\u60c5\u51b5\u4e0b\uff0c\u7acb\u5373\u8fd4\u56de\u3002
                          \n\u4e00\u65e6\u5f00\u59cb\u7f16\u5199Go\u4ee3\u7801\uff0c\u4f60\u4f1a\u7ecf\u5e38\u770b\u5230\u8fd9\u79cd`if err != nil {}`\u7684\u8bed\u6cd5\u3002<\/p>\n
                          \u8f93\u51fa\u9519\u8bef\u65e5\u5fd7<\/h2>\n
                          \u5173\u4e8e\u9519\u8bef\u65e5\u5fd7\u7684\u8f93\u51fa\uff0c\u6211\u4eec\u6b63\u5728\u79ef\u6781\u63a2\u7d22\uff0c\u56e0\u6b64\u6b63\u5728\u5f81\u6c42\u8fd9\u6837\u7684\u5efa\u8bae\u3002
                          \n\u987a\u4fbf\u63d0\u4e00\u53e5\uff0c\u5728\u4e0a\u8ff0\u60c5\u51b5\u4e2d\uff0c\u6211\u4eec\u4f1a\u5728\u4e3b\u51fd\u6570\u5185\u6355\u83b7\u9519\u8bef\u65e5\u5fd7\uff0c\u4f46\u5bf9\u4e8e gRPC \u670d\u52a1\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 go-grpc-middleware\uff0c\u5728 WithUnaryServerChain \u4e2d\uff08\u6216\u8005\u5728\u4f7f\u7528\u670d\u52a1\u5668\u7aef\u6d41\u65f6\uff0c\u5728 WithStreamServerChain \u4e2d\uff09\uff0c\u901a\u8fc7\u81ea\u5b9a\u4e49\u62e6\u622a\u5668\u94fe\u6765\u6355\u83b7\u9519\u8bef\u65e5\u5fd7\u4f3c\u4e4e\u662f\u66f4\u597d\u7684\u9009\u62e9\u3002<\/p>\n
                          gRPC Server\u7684\u9519\u8bef\u65e5\u5fd7\u8f93\u51fapackage main<\/p>\n
                          import (
                          \n“context”
                          \n“fmt”
                          \ngrpcMiddleware “github.com\/grpc-ecosystem\/go-grpc-middleware”
                          \ngrpcZap “github.com\/grpc-ecosystem\/go-grpc-middleware\/logging\/zap”
                          \n“github.com\/grpc-ecosystem\/go-grpc-middleware\/logging\/zap\/ctxzap”
                          \ngrpcCtxtags “github.com\/grpc-ecosystem\/go-grpc-middleware\/tags”
                          \n“github.com\/pkg\/errors”
                          \n“go.uber.org\/zap”
                          \n“google.golang.org\/grpc”
                          \n“log”
                          \n“net”
                          \ncustomInterceptor “sample”
                          \n)<\/p>\n
                          func main() {
                          \nc := zap.NewProductionConfig()
                          \nc.Level = zap.NewAtomicLevelAt(zap.DebugLevel)
                          \nlogger, err := c.Build()
                          \nif err != nil {
                          \nlog.Fatal(err)
                          \n}<\/p>\n
                          lis, err := net.Listen(“tcp”, fmt.Sprintf(“:%s”, “50051”))<\/p>\n
                          s := grpc.NewServer(
                          \ngrpcMiddleware.WithUnaryServerChain(
                          \ncustomInterceptor.UnaryServerInterceptor(),
                          \ngrpcCtxtags.UnaryServerInterceptor(grpcCtxtags.WithFieldExtractor(grpcCtxtags.CodeGenRequestFieldExtractor)),
                          \ngrpcZap.UnaryServerInterceptor(logger),
                          \n),
                          \ngrpcMiddleware.WithStreamServerChain(
                          \ncustomInterceptor.StreamServerInterceptor(),
                          \ngrpcCtxtags.StreamServerInterceptor(grpcCtxtags.WithFieldExtractor(grpcCtxtags.CodeGenRequestFieldExtractor)),
                          \ngrpcZap.StreamServerInterceptor(logger),
                          \n),
                          \n)
                          \n{ \/\/ \u7528\u6237\u5904\u7406\u7a0b\u5e8f
                          \n\/\/ gRPC API\u5904\u7406\u7a0b\u5e8f
                          \nserver := handler.NewUser()
                          \n\/\/ \u751f\u6210gRPC\u670d\u52a1\u5668\u7684protobuf\u63a5\u53e3
                          \nprotobufInterface.RegisterUserServer(s, server)
                          \n}
                          \nif err := s.Serve(lis); err != nil {
                          \nlog.Fatalf(“\u65e0\u6cd5\u63d0\u4f9b\u670d\u52a1: %v”, err)
                          \n}
                          \n}<\/p>\n
                          package custom_interceptor<\/p>\n
                          import (
                          \n“context”
                          \n“fmt”
                          \n“github.com\/grpc-ecosystem\/go-grpc-middleware\/logging\/zap\/ctxzap”
                          \n“github.com\/pkg\/errors”
                          \n“go.uber.org\/zap”
                          \n“go.uber.org\/zap\/zapcore”
                          \n“google.golang.org\/grpc”
                          \n)<\/p>\n
                          type wrapServerStream struct {
                          \ngrpc.ServerStream
                          \nc context.Context
                          \n}<\/p>\n
                          type wrapCore struct {
                          \nzapcore.Core
                          \n}<\/p>\n
                          func UnaryServerInterceptor() grpc.UnaryServerInterceptor {
                          \nreturn func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (_ interface{}, err error) {
                          \nlogger := ctxzap.Extract(ctx)
                          \nlogger = logger.WithOptions(zap.WrapCore(func(c zapcore.Core) zapcore.Core {
                          \nreturn &wrapCore{Core: c}
                          \n}))
                          \nctx = ctxzap.ToContext(ctx, logger)<\/p>\n
                          resp, err := handler(ctx, req)
                          \nif err != nil {
                          \nlogger.Error(fmt.Sprintf(“%+v\\n”, err))
                          \nreturn resp, errors.WithStack(err)
                          \n}
                          \nreturn resp, nil
                          \n}
                          \n}<\/p>\n
                          func StreamServerInterceptor() grpc.StreamServerInterceptor {<\/p>\n
                          return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
                          \nctx := stream.Context()
                          \nlogger := ctxzap.Extract(stream.Context())
                          \nlogger = logger.WithOptions(zap.WrapCore(func(c zapcore.Core) zapcore.Core {
                          \nreturn &wrapCore{Core: c}
                          \n}))
                          \nctx = ctxzap.ToContext(ctx, logger)<\/p>\n
                          err := handler(srv, &wrapServerStream{ServerStream: stream, c: ctx})
                          \nif err != nil {
                          \nlogger.Error(fmt.Sprintf(“%+v\\n”, err))
                          \nreturn errors.WithStack(err)
                          \n}
                          \nreturn nil
                          \n}
                          \n}<\/p>\n<\/details>\n
                          \u5982\u679c\u5728\u51fd\u6570\u7684\u53c2\u6570\u6216\u8fd4\u56de\u503c\u4e2d\u4f7f\u7528\u8f83\u5927\u7684\u7ed3\u6784\u4f53\u65f6\uff0c\u8bf7\u4f7f\u7528\u6307\u9488\u3002<\/h2>\n
                          \u8fd9\u5c31\u662f\u8fd9\u6837\u7684\u5417\uff1f<\/p>\n
                          \/\/ \u5f15\u6570\uff1a\u30dd\u30a4\u30f3\u30bf\u30fc\u3001\u623b\u308a\u5024\uff1a\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u5834\u5408<\/span>\r\nfunc<\/span> GetSample<\/span>(<\/span>req<\/span> *<\/span>RequestSample<\/span>)<\/span> (<\/span>*<\/span>Sample<\/span>,<\/span> error<\/span>)<\/span> {}<\/span>\r\n\r\n\/\/ \u5f15\u6570\uff1a\u5b9f\u4f53\u3001\u623b\u308a\u5024\uff1a\u5b9f\u4f53\u306e\u5834\u5408<\/span>\r\nfunc<\/span> GetSample<\/span>(<\/span>req<\/span> RequestSample<\/span>)<\/span> (<\/span>Sample<\/span>,<\/span> error<\/span>)<\/span> {}<\/span>\r\n<\/code><\/pre>\n
                          \u5c3d\u7ba1\u7ed3\u6784\u4f53\u5927\u5c0f\u4e5f\u4f1a\u5f71\u54cd\uff0c\u4f46\u6bcf\u6b21\u590d\u5236\u7ed3\u6784\u4f53\u7684\u6210\u672c\u5f88\u9ad8\u3002
                          \n\u5982\u679c\u8981\u4f20\u9012\u6216\u8fd4\u56de\u5927\u578b\u7ed3\u6784\u4f53\uff0c\u6700\u597d\u4f7f\u7528\u6307\u9488\u3002
                          \n\u7279\u522b\u662f\u8fd4\u56de\u503c\u4e3a\u7ed3\u6784\u4f53\u7684\u60c5\u51b5\uff0c\u7ecf\u5e38\u4f1a\u6210\u4e3a\u6a21\u578b\uff0c\u51e0\u4e4e\u90fd\u53ef\u4ee5\u7528\u6307\u9488\u6765\u5904\u7406\u3002<\/p>\n
                          \u7531\u4e8e\u5c06\u4e00\u5207\u90fd\u8f6c\u6362\u4e3a\u6307\u9488\u4f1a\u4f7f\u4ee3\u7801\u53d8\u5f97\u4e0d\u591f\u7b80\u6d01\uff0c\u56e0\u6b64\u5bf9\u4e8e\u8bf8\u5982int\u3001string\u7b49\u57fa\u672c\u7c7b\u578b\u7684\u503c\uff0c\u6700\u597d\u4e0d\u8981\u8fdb\u884c\u8f6c\u6362\uff1b\u5bf9\u4e8e\u50cftime.Time\u8fd9\u6837\u7684\u5c0f\u578b\u7ed3\u6784\u4f53\uff0c\u76f4\u63a5\u4f20\u9012\u5b9e\u9645\u503c\u53ef\u80fd\u66f4\u52a0\u65b9\u4fbf\u4f7f\u7528\u3002<\/p>\n
                          \u4f7f\u7528\u7684\u662f*T\u800c\u4e0d\u662fT\u3002<\/h2>\n
                          \u6211\u4e0d\u786e\u5b9a\u54ea\u4e2a\u66f4\u597d\uff0c\u6240\u4ee5\u5728\u7ea0\u7ed3\u4e2d\u627e\u5230\u4e86\u4ee5\u4e0b\u7684\u6587\u7ae0\u3002<\/p>\n
                          returning []*T vs []T<\/a>
                           by                          u\/nesigma<\/a> ingolang<\/a><\/p><\/blockquote>\n