{"id":208088,"date":"2025-07-08T11:24:06","date_gmt":"2025-07-08T03:24:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208088\/"},"modified":"2025-07-08T11:24:06","modified_gmt":"2025-07-08T03:24:06","slug":"net-conn-%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e5%8f%af%e6%81%a2%e5%a4%8d%e7%9a%84%e8%af%bb%e5%8f%96%e9%94%99%e8%af%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208088\/","title":{"rendered":"net.Conn \u662f\u5426\u5b58\u5728\u53ef\u6062\u590d\u7684\u8bfb\u53d6\u9519\u8bef\uff1f"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> net.Conn \u662f\u5426\u5b58\u5728\u53ef\u6062\u590d\u7684\u8bfb\u53d6\u9519\u8bef\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-28 21:00:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u300anet.Conn \u662f\u5426\u5b58\u5728\u53ef\u6062\u590d\u7684\u8bfb\u53d6\u9519\u8bef\uff1f\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60Golang<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n

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

\u5982\u679c net.Conn<\/code> \u7684 .Read()<\/code> \u65b9\u6cd5\u8fd4\u56de\u9519\u8bef\uff0c\u8fd9\u662f\u5426\u610f\u5473\u7740\u5c06\u6765\u7684\u8bfb\u53d6\u4e5f\u4f1a\u5931\u8d25\u5e76\u51fa\u73b0\u9519\u8bef\uff1f\u6216\u8005\u6709\u53ef\u6062\u590d\u7684\u9519\u8bef\u5417\uff1f\u5982\u679c\u662f\u8fd9\u6837\uff0c\u6211\u5982\u4f55\u77e5\u9053\u662f\u5426\/\u4f55\u65f6\u91cd\u8bd5\u8bfb\u53d6\uff1f<\/p>\n

<\/p>\n

\u89e3\u51b3\u65b9\u6848<\/h2>\n

<\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0c\u53ef\u91cd\u8bd5\u7684 conn.read<\/code> \u64cd\u4f5c\u4e0d\u4f1a\u51fa\u73b0\u4efb\u4f55\u9519\u8bef\u3002 io.reader<\/code> \u63a5\u53e3\u7684\u5927\u591a\u6570\u7528\u9014\u5c06\u5047\u5b9a\u6240\u6709\u9519\u8bef\u90fd\u662f\u6700\u7ec8\u7684\u3002<\/p>\n

\u4efb\u4f55\u786e\u4fdd\u53ef\u91cd\u8bd5\u7684 net<\/code> \u5305\u9519\u8bef\u90fd\u5c06\u7b26\u5408 \u63a5\u53e3\uff0c\u5e76\u516c\u5f00 temporary<\/code> \u65b9\u6cd5\u3002<\/p>\n

\u8fd9\u6700\u5e38\u7528\u4e8e accept<\/code> \u5faa\u73af\uff0c\u5c31\u50cf http \u5305\u4e2d\u7684\u8fd9\u4e2a\u89e3\u91ca\u793a\u4f8b<\/p>\n

for {\n    rw, e := l.accept()\n    if e != nil {\n        if ne, ok := e.(net.error); ok && ne.temporary() {\n            if tempdelay == 0 {\n                tempdelay = 5 * time.millisecond\n            } else {\n                tempdelay *= 2\n            }\n            if max := 1 * time.second; tempdelay > max {\n                tempdelay = max\n            }\n            time.sleep(tempdelay)\n            continue\n        }\n        return e\n    }\n}<\/pre>\n
\u4efb\u4f55\u5176\u4ed6\u53ef\u80fd\u7684\u60c5\u51b5\u90fd\u9700\u8981\u6839\u636e\u534f\u8bae\u548c\u5f53\u524d\u60c5\u51b5\u8fdb\u884c\u5355\u72ec\u5904\u7406\u3002<\/p>\n
\u8d85\u65f6\u662f\u4ece \u8bfb\u53d6\u65f6\u552f\u4e00\u53ef\u6062\u590d\u7684\u9519\u8bef\uff0c\u5e76\u4e14\u8be5\u9519\u8bef\u53ea\u4f1a\u5f53 a \u65f6\u8fd4\u56de\u3002<\/p>\n
\u4f7f\u7528 \u68c0\u67e5\u91cd\u8bd5\u65f6\u53ef\u80fd\u89e3\u51b3\u7684\u9519\u8bef\uff0c\u4f7f\u7528 \u68c0\u67e5\u8d85\u65f6\uff1a<\/p>\n
n, err := c.Read(buf)\n \/\/ process buf[:n] bytes\n if e.(net.Error); ok && e.Timeout() && e.Temporary() {\n    \/\/ handle recoverable read deadline expiration\n } else if err != nil {\n    \/\/ handle other errors\n }<\/pre>\n
\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300anet.Conn \u662f\u5426\u5b58\u5728\u53ef\u6062\u590d\u7684\u8bfb\u53d6\u9519\u8bef\uff1f\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-208088","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208088","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=208088"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208088\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}