{"id":207225,"date":"2025-07-08T09:00:52","date_gmt":"2025-07-08T01:00:52","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207225\/"},"modified":"2025-07-08T09:00:52","modified_gmt":"2025-07-08T01:00:52","slug":"%e4%be%9d%e8%b5%96%e8%bd%ae%e8%af%a2%e5%99%a8%e5%a7%8b%e7%bb%88%e8%bf%90%e8%a1%8c%e7%9a%84-go-%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%ef%bc%8c%e7%a1%ae%e4%bf%9d%e5%85%b6%e7%a8%b3%e5%ae%9a%e6%80%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207225\/","title":{"rendered":"\u4f9d\u8d56\u8f6e\u8be2\u5668\u59cb\u7ec8\u8fd0\u884c\u7684 Go \u5e94\u7528\u7a0b\u5e8f\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u6027\u7684\u5efa\u8bae"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u4f9d\u8d56\u8f6e\u8be2\u5668\u59cb\u7ec8\u8fd0\u884c\u7684 Go \u5e94\u7528\u7a0b\u5e8f\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u6027\u7684\u5efa\u8bae<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-20 22:27:36<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300a\u4f9d\u8d56\u8f6e\u8be2\u5668\u59cb\u7ec8\u8fd0\u884c\u7684 Go \u5e94\u7528\u7a0b\u5e8f\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u6027\u7684\u5efa\u8bae\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n

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

\u6240\u4ee5\u6211\u7684\u5e94\u7528\u7a0b\u5e8f\u4f9d\u8d56\u4e8e\u6bcf x \u79d2\u8f6e\u8be2\u4e00\u6b21\u7684 goroutine\u3002 <\/p>\n

func main() {\n   \/\/ ...\n   go p.startpoller();\n}<\/pre>\n
\u6709\u54ea\u4e9b\u6280\u5de7\u53ef\u4ee5\u786e\u4fdd\u6b64\u8f6e\u8be2\u5668\u59cb\u7ec8\u8fd0\u884c\uff1f<\/p>\n
\u6211\u53ea\u662f\u5bf9\u4e8b\u60c5\u611f\u5230\u538c\u5026\uff0c\u4e5f\u8bb8\u662f\u56e0\u4e3a\u6211\u4e0d\u5b8c\u5168\u7406\u89e3 go \u4e2d\u9519\u8bef\u6355\u83b7\u7684\u6982\u5ff5\u3002\u7531\u4e8e\u9519\u8bef\u662f\u503c\uff0c\u5047\u8bbe\u6211\u6216\u6211\u4f7f\u7528\u7684\u4efb\u4f55\u5e93\u90fd\u6ca1\u6709\u8c03\u7528panic()\uff0c\u5e76\u4e14\u6ca1\u6709\u7a7a\u6307\u9488\u5f15\u7528\u6216\u6570\u7ec4\u8d8a\u754c\u6b64 goroutine \u5185\u7684\u4efb\u4f55\u4ee3\u7801\u90fd\u4e0d\u5e94\u8be5\u4f7f goroutine \u5d29\u6e83\uff0c\u6b63\u786e\u5f3a>?<\/strong><\/p>\n
func (p *Poller) StartPoller() {\n        ticker := time.NewTicker(3 * time.Second)\n        defer ticker.Stop() \n\n        for {\n            <-ticker.C\n            \/\/ code here\n        }\n\n    }<\/pre>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u4f60\u662f\u5bf9\u7684\uff0c\u4f60\u53d1\u5e03\u7684\u4ee3\u7801\u4e0d\u5e94\u8be5\u51fa\u73b0\u6050\u614c\uff0c\u4ece\u800c\u4f7f goroutine \u201c\u5d29\u6e83\u201d\u3002<\/p>\n
\u4f5c\u4e3a\u4e00\u79cd\u6700\u4f73\u5b9e\u8df5\uff0c\u4e3a\u4e86\u786e\u4fdd\u8fd9\u91cc\u7684 \/\/ \u4ee3\u7801 <\/code> \u4e5f\u4e0d\u4f1a\u8fd9\u6837\u505a\uff0c\u8bf7\u5c06\u5176\u201c\u5305\u88c5\u201d\u5728\u4e00\u4e2a\u51fd\u6570\uff08\u533f\u540d\u6216\u547d\u540d\u51fd\u6570\uff09\u4e2d\uff0c\u5e76\u5728\u5176\u4e2d\u4f7f\u7528 recover()<\/code> \uff08\u5ef6\u8fdf\uff01\uff09\u3002\u8fd9\u5c06\u786e\u4fdd\u8f6e\u8be2\u4efb\u52a1\u4e5f\u4e0d\u4f1a\u201c\u5d29\u6e83\u201d\u8f6e\u8be2\u8c03\u5ea6\u7a0b\u5e8f\u3002<\/p>\n
\u7c7b\u4f3c\u8fd9\u6837\u7684\u4e8b\u60c5\uff1a<\/p>\n
func (p *poller) startpoller() {\n    ticker := time.newticker(3 * time.second)\n    defer ticker.stop()\n\n    for {\n        <-ticker.c\n\n        func() {\n            defer func() {\n                if r := recover(); r != nil {\n                    fmt.println(\"recovered: %v\", r)\n                }\n            }()\n\n            \/\/ code here\n            \/\/ if this would panic, it will be recovered...\n        }()\n    }\n}<\/pre>\n
\u5373\u4f7f\u8f6e\u8be2\u5668\u59cb\u7ec8\u8fd0\u884c\uff0c\u6211\u4ecd\u7136\u4f1a\u4e3a\u5176\u6dfb\u52a0\u4e00\u4e2a\u201c\u5173\u95ed\u201d\u901a\u9053\uff0c\u4ece\u800c\u63d0\u4f9b\u4f18\u96c5\u7ec8\u6b62\u7684\u53ef\u80fd\u6027\uff1a<\/p>\n
func (p *Poller) StartPoller(shutdown <-chan struct{}) {\n    ticker := time.NewTicker(3 * time.Second)\n    defer ticker.Stop()\n\n    for {\n        select {\n        case <-ticker.C:\n        case <-shutdown:\n            return\n        }\n\n        func() {\n            defer func() {\n                if r := recover(); r != nil {\n                    fmt.Println(\"Recovered: %v\", r)\n                }\n            }()\n\n            \/\/ code here\n            \/\/ If this would panic, it will be recovered...\n        }()\n    }\n}<\/pre>\n
\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u4f9d\u8d56\u8f6e\u8be2\u5668\u59cb\u7ec8\u8fd0\u884c\u7684 Go \u5e94\u7528\u7a0b\u5e8f\uff0c\u786e\u4fdd\u5176\u7a33\u5b9a\u6027\u7684\u5efa\u8bae\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGolang\u77e5\u8bc6\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-207225","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207225","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=207225"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207225\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}