{"id":57846,"date":"2024-10-10T21:38:35","date_gmt":"2024-10-10T13:38:35","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57846\/"},"modified":"2024-10-10T21:38:35","modified_gmt":"2024-10-10T13:38:35","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e5%ae%95%e6%a9%9f%e6%81%a2%e5%be%a9%ef%bc%88recover%ef%bc%89-%e9%98%b2%e6%ad%a2%e7%a8%8b%e5%ba%8f%e5%b4%a9%e6%bd%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57846\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00\u5b95\u6a5f\u6062\u5fa9\uff08recover\uff09\u2014\u2014\u9632\u6b62\u7a0b\u5e8f\u5d29\u6f70"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e5%ae%95%e6%a9%9f%e6%81%a2%e5%be%a9%ef%bc%88recover%ef%bc%89-%e9%98%b2%e6%ad%a2%e7%a8%8b%e5%ba%8f%e5%b4%a9%e6%bd%b0-IvxAdtnPqS\">GO\u6559\u7a0b: Go \u8a9e\u8a00\u5b95\u6a5f\u6062\u5fa9\uff08recover\uff09\u2014\u2014\u9632\u6b62\u7a0b\u5e8f\u5d29\u6f70<\/h1>\n<p>\u5728\u73fe\u4ee3\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Go \u8a9e\u8a00\uff08Golang\uff09\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5de5\u5177\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u8655\u7406\u7a0b\u5e8f\u5d29\u6f70\u7684\u60c5\u6cc1\uff0c\u5176\u4e2d\u6700\u91cd\u8981\u7684\u5c31\u662f\u5b95\u6a5f\u6062\u5fa9\uff08recover\uff09\u6a5f\u5236\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Go \u8a9e\u8a00\u4e2d\u7684\u5b95\u6a5f\u6062\u5fa9\uff0c\u4e26\u63d0\u4f9b\u5be6\u7528\u7684\u7bc4\u4f8b\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u9632\u6b62\u7a0b\u5e8f\u5d29\u6f70\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ae%95%e6%a9%9f%e6%81%a2%e5%be%a9%ef%bc%88recover%ef%bc%89%ef%bc%9f-IvxAdtnPqS\">\u4ec0\u9ebc\u662f\u5b95\u6a5f\u6062\u5fa9\uff08recover\uff09\uff1f<\/h2>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u5b95\u6a5f\u6062\u5fa9\u662f\u4e00\u7a2e\u7528\u65bc\u6355\u7372\u548c\u8655\u7406\u6050\u614c\uff08panic\uff09\u72c0\u614b\u7684\u6a5f\u5236\u3002\u7576\u7a0b\u5e8f\u9047\u5230\u7121\u6cd5\u8655\u7406\u7684\u932f\u8aa4\u6642\uff0c\u6703\u89f8\u767c\u6050\u614c\uff0c\u9019\u6703\u5c0e\u81f4\u7a0b\u5e8f\u7684\u5d29\u6f70\u3002\u4f7f\u7528 recover \u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u6050\u614c\u767c\u751f\u6642\u6062\u5fa9\u7a0b\u5e8f\u7684\u57f7\u884c\uff0c\u5f9e\u800c\u907f\u514d\u6574\u500b\u61c9\u7528\u7a0b\u5e8f\u7684\u5d29\u6f70\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-recover-IvxAdtnPqS\">\u5982\u4f55\u4f7f\u7528 recover<\/h2>\n<p>\u8981\u4f7f\u7528 recover\uff0c\u901a\u5e38\u9700\u8981\u5728 defer \u8a9e\u53e5\u4e2d\u8abf\u7528\u5b83\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u51fd\u6578\u8fd4\u56de\u4e4b\u524d\u57f7\u884c recover\uff0c\u5f9e\u800c\u6355\u7372\u6050\u614c\u72c0\u614b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>package main\n\nimport \"fmt\"\n\nfunc main() {\n    defer func() {\n        if r := recover(); r != nil {\n            fmt.Println(\"\u7a0b\u5e8f\u6062\u5fa9\uff0c\u932f\u8aa4:\", r)\n        }\n    }()\n\n    fmt.Println(\"\u958b\u59cb\u57f7\u884c\")\n    causePanic() \/\/ \u9019\u88e1\u6703\u89f8\u767c\u6050\u614c\n    fmt.Println(\"\u9019\u884c\u4e0d\u6703\u88ab\u57f7\u884c\")\n}\n\nfunc causePanic() {\n    panic(\"\u9019\u662f\u4e00\u500b\u6050\u614c\")\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u7576 <code>causePanic<\/code> \u51fd\u6578\u88ab\u8abf\u7528\u6642\uff0c\u6703\u89f8\u767c\u6050\u614c\u3002\u7531\u65bc\u6211\u5011\u5728 <code>main<\/code> \u51fd\u6578\u4e2d\u4f7f\u7528\u4e86 <code>defer<\/code> \u548c <code>recover<\/code>\uff0c\u7a0b\u5e8f\u4e0d\u6703\u5d29\u6f70\uff0c\u800c\u662f\u6703\u6355\u7372\u5230\u932f\u8aa4\u4e26\u6253\u5370\u51fa\u4f86\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-recover-%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-IvxAdtnPqS\">\u4f7f\u7528 recover \u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u50c5\u5728\u5fc5\u8981\u6642\u4f7f\u7528 recover\uff1a<\/strong>\u4e0d\u61c9\u8a72\u5c07 recover \u7528\u65bc\u63a7\u5236\u7a0b\u5e8f\u6d41\uff0c\u61c9\u8a72\u50c5\u5728\u8655\u7406\u4e0d\u53ef\u9810\u6e2c\u7684\u932f\u8aa4\u6642\u4f7f\u7528\u3002<\/li>\n<li><strong>\u8a18\u9304\u932f\u8aa4\u4fe1\u606f\uff1a<\/strong>\u5728\u6355\u7372\u5230\u6050\u614c\u5f8c\uff0c\u61c9\u8a72\u8a18\u9304\u8a73\u7d30\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u7684\u8abf\u8a66\u548c\u5206\u6790\u3002<\/li>\n<li><strong>\u4fdd\u6301\u4ee3\u78bc\u7c21\u6f54\uff1a<\/strong>\u904e\u5ea6\u4f7f\u7528 recover \u53ef\u80fd\u6703\u4f7f\u4ee3\u78bc\u8b8a\u5f97\u8907\u96dc\uff0c\u61c9\u8a72\u4fdd\u6301\u4ee3\u78bc\u7684\u7c21\u6f54\u6027\u548c\u53ef\u8b80\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-IvxAdtnPqS\">\u7d50\u8ad6<\/h2>\n<p>Go \u8a9e\u8a00\u7684\u5b95\u6a5f\u6062\u5fa9\u6a5f\u5236\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u7a0b\u5e8f\u5d29\u6f70\u7684\u60c5\u6cc1\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528 recover\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\uff0c\u4e26\u6e1b\u5c11\u56e0\u70ba\u672a\u8655\u7406\u7684\u932f\u8aa4\u800c\u5c0e\u81f4\u7684\u5d29\u6f70\u98a8\u96aa\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u4f7f\u7528\u9019\u4e00\u6a5f\u5236\uff0c\u5c07\u6709\u52a9\u65bc\u958b\u767c\u51fa\u66f4\u53ef\u9760\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u69cb\u5efa\u9ad8\u6548\u7684\u61c9\u7528\u74b0\u5883\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Go\u8a9e\u8a00\u4e2d\u7684\u5b95\u6a5f\u6062\u5fa9\uff08recover\uff09\u6280\u8853\uff0c\u5b78\u7fd2\u5982\u4f55\u9632\u6b62\u7a0b\u5e8f\u5d29\u6f70\uff0c\u63d0\u5347\u61c9\u7528\u7a69\u5b9a\u6027\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57846","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57846","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=57846"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57846\/revisions"}],"predecessor-version":[{"id":57847,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57846\/revisions\/57847"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}