{"id":207201,"date":"2025-07-08T10:48:46","date_gmt":"2025-07-08T02:48:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207201\/"},"modified":"2025-07-08T10:48:46","modified_gmt":"2025-07-08T02:48:46","slug":"%e5%9c%a8golang%e4%b8%ad%e4%bd%bf%e7%94%a8%e6%9d%a1%e4%bb%b6%e5%9d%97%e5%a4%96%e7%9a%84%e5%8f%98%e9%87%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207201\/","title":{"rendered":"\u5728golang\u4e2d\u4f7f\u7528\u6761\u4ef6\u5757\u5916\u7684\u53d8\u91cf"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u5728golang\u4e2d\u4f7f\u7528\u6761\u4ef6\u5757\u5916\u7684\u53d8\u91cf<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-20 19:36:39<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5728golang\u4e2d\u4f7f\u7528\u6761\u4ef6\u5757\u5916\u7684\u53d8\u91cf\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<pre>func CheckKafkaReadPartitions(kafkabroker string, topic string, conf config.Config) bool {\n    var conn *kafka.Conn\n\n    if conf.TlsEnabled {\n        d := &amp;kafka.Dialer{\n            TLS: &amp;tls.Config{},\n        }\n        conn, err := d.Dial(\"tcp\", kafkabroker)\n        log.Info(\"conn is: \", conn)\n        log.Info(\"Using TLS connection\")\n        if err != nil {\n            log.WithError(err).Warn(\"Kafka broker connection error\")\n            return false\n        }\n        defer conn.Close()\n    } else {\n        conn, err := kafka.Dial(\"tcp\", kafkabroker)\n        log.Info(\"conn is: \", conn)\n        log.Info(\"Using Plaintext connection\")\n        if err != nil {\n            log.WithError(err).Warn(\"Kafka broker connection error\")\n            return false\n        }\n        defer conn.Close()\n    }\n    log.Info(\"conn is: \", conn)\n    log.Info(\"Reading Partitions\")\n    partitions, err := conn.ReadPartitions()\n \/\/ SOME OTHER WORK\n}<\/pre>\n<p>\u6211\u6ce8\u610f\u5230\uff0c\u5728\u8c03\u7528 readpartitions() \u65b9\u6cd5\u65f6\uff0c\u5373\u4f7f\u5728 <code>conn, err := kafka.dial(\"tcp\", kafkabroker)<\/code> \u6216 <code>conn, err := d.dial( \u4e2d\u5f71\u54cd\u5176\u503c\u540e\uff0cconn \u4ecd\u4e3a\u7a7a\u201ctcp\u201d\uff0ckafkabroker\uff09<\/code> \u6211\u7f3a\u5c11\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u65b9\u6cd5\u53ef\u4ee5\u5c06 conn var \u4ece if\/else \u5757\u4e2d\u53d6\u51fa\u800c\u4e0d\u6e05\u7a7a\u5176\u5185\u5bb9\u5417\uff1f<\/p>\n<p> <\/p>\n<h2>\u6b63\u786e\u7b54\u6848<\/h2>\n<p> <\/p>\n<p>\u6240\u4ee5\u57fa\u672c\u4e0a\u8fd9\u91cc\u53d1\u751f\u7684\u662f <code> \u53d8\u91cf\u9634\u5f71 <\/code>\u3002<\/p>\n<p>Go \u5177\u6709\u53d8\u91cf\u4f5c\u7528\u57df\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u5728\u51fd\u6570\u5916\u90e8\u5b9a\u4e49\u53d8\u91cf\u6765\u5728\u5168\u5c40\u4f5c\u7528\u57df\u4e2d\u62e5\u6709\u53d8\u91cf\u3002\u7136\u540e\uff0c\u60a8\u5c06\u80fd\u591f\u5728\u540c\u4e00\u5305\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u4f7f\u7528\u6b64\u53d8\u91cf\uff08\u6216\u8005\u5982\u679c\u5b83\u88ab\u5bfc\u51fa\u5230\u4ee3\u7801\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\uff09\u3002<\/p>\n<p>\u7136\u540e\u60a8\u5c31\u62e5\u6709\u4e86\u5728\u4ee3\u7801\u5757\u4e2d\u5b9a\u4e49\u7684\u53d8\u91cf\u3002\u4e0e <code>var conn *kafka.Conn<\/code> \u7c7b\u4f3c\uff0c\u60a8\u53ef\u4ee5\u4ece\u5b9a\u4e49\u5b83\u7684\u5757\uff08\u4ee5\u53ca\u6240\u6709\u5b50\u5757\uff09\u4e2d\u7684\u4efb\u4f55\u4f4d\u7f6e\u8bbf\u95ee\u6b64\u53d8\u91cf\u3002<\/p>\n<p>\u5c06\u5757\u89c6\u4e3a\u5927\u62ec\u53f7 <code>{}<\/code> \u62ec\u8d77\u6765\u7684\u4ee3\u7801 \u8fd9\u610f\u5473\u7740 <code>if\/else<\/code> \u662f <code>func<\/code> \u5757\u4e0b\u7684\u5355\u72ec\u5757\u3002<\/p>\n<p>\u73b0\u5728\u60a8\u9700\u8981\u4e86\u89e3\u7684\u662f <code>=<\/code> \u548c <code>:=<\/code> \u4e4b\u95f4\u7684\u533a\u522b<\/p>\n<p><code>=<\/code> \u7528\u4e8e\u4e3a\u53d8\u91cf\u8d4b\u503c\uff0c\u800c <code>:=<\/code> \u662f\u7528\u4e8e\u58f0\u660e\u548c\u8d4b\u503c\u53d8\u91cf\u7684\u7b80\u5199\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u901a\u8fc7\u4f7f\u7528 <code>conn, err := d.Dial(\"tcp\", kafkabroker)<\/code> \u4ee3\u7801\uff0c\u60a8\u5b9e\u8d28\u4e0a\u8981\u505a\u7684\u5c31\u662f\u5728 <code>if<\/code> \u5757\u4e2d\u58f0\u660e\u65b0\u53d8\u91cf\uff0c\u5e76\u4ece <code>d.Dial<\/code> \u7684\u8fd4\u56de\u503c\u4e2d\u5c06\u503c\u5206\u914d\u7ed9\u5b83\u4eec\u529f\u80fd\u6821\u51c6\u3002<\/p>\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u60a8\u53ef\u80fd\u60f3\u8981\u8fd9\u6837\u505a\u3002\u6700\u5e38\u89c1\u7684\u60c5\u51b5\u662f\u5f53\u60a8\u6709\u4e00\u4e2a for \u5faa\u73af\u542f\u52a8\u4f7f\u7528\u5916\u90e8\u5757\u4e2d\u7684\u53d8\u91cf\u7684 goroutine \u65f6\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300a\u5728golang\u4e2d\u4f7f\u7528\u6761\u4ef6\u5757\u5916\u7684\u53d8\u91cf\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/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-207201","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207201","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=207201"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207201\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}