{"id":14489,"date":"2023-12-04T15:45:54","date_gmt":"2023-12-04T07:45:54","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=14489"},"modified":"2023-12-12T11:37:14","modified_gmt":"2023-12-12T03:37:14","slug":"kafka-zhongconsumer-shi-fou-ke-yi-xiao-fei-zhi-din","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/kafka-zhongconsumer-shi-fou-ke-yi-xiao-fei-zhi-din\/","title":{"rendered":"Kafka\u4e2dconsumer\u662f\u5426\u53ef\u4ee5\u6d88\u8d39\u6307\u5b9a\u5206\u533a\u6d88\u606f\uff1f"},"content":{"rendered":"<p>\u662f\u7684\uff0cKafka \u4e2d\u7684\u6d88\u8d39\u8005\uff08Consumer\uff09\u53ef\u4ee5\u6d88\u8d39\u6307\u5b9a\u5206\u533a\u7684\u6d88\u606f\u3002\u6d88\u8d39\u8005\u53ef\u4ee5\u901a\u8fc7\u8ba2\u9605\uff08subscribe\uff09\u6216\u8ba2\u9605\u6307\u5b9a\u5206\u533a\uff08subscribe to specific partitions\uff09\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002<\/p>\n<ol>\n<li>\n<strong>\u8ba2\u9605\u5168\u90e8\u5206\u533a\uff1a<\/strong><\/p>\n<pre><code class=\"language-java\">\/\/ \u8ba2\u9605\u6240\u6709\u5206\u533a\nconsumer.subscribe(Arrays.asList(&quot;topic_name&quot;));\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u5bfc\u81f4\u6d88\u8d39\u8005\u8ba2\u9605\u6307\u5b9a\u4e3b\u9898\u7684\u6240\u6709\u5206\u533a\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cKafka \u5c06\u81ea\u52a8\u4e3a\u6d88\u8d39\u8005\u5206\u914d\u5206\u533a\uff0c\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002\n<\/li>\n<li>\n<strong>\u8ba2\u9605\u6307\u5b9a\u5206\u533a\uff1a<\/strong><\/p>\n<pre><code class=\"language-java\">\/\/ \u8ba2\u9605\u6307\u5b9a\u5206\u533a\nTopicPartition partition0 = new TopicPartition(&quot;topic_name&quot;, 0);\nTopicPartition partition1 = new TopicPartition(&quot;topic_name&quot;, 1);\nconsumer.assign(Arrays.asList(partition0, partition1));\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u5bfc\u81f4\u6d88\u8d39\u8005\u76f4\u63a5\u5206\u914d\u5230\u6307\u5b9a\u7684\u5206\u533a\uff0c\u800c\u4e0d\u518d\u7531 Kafka \u81ea\u52a8\u8fdb\u884c\u5206\u533a\u5206\u914d\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6d88\u8d39\u8005\u5c06\u53ea\u4f1a\u6d88\u8d39\u6307\u5b9a\u5206\u533a\u7684\u6d88\u606f\u3002\n<\/li>\n<\/ol>\n<p>\u8bf7\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\n\u4f7f\u7528 <code>subscribe<\/code> \u65b9\u6cd5\u65f6\uff0cKafka \u5c06\u8d1f\u8d23\u4e3a\u6d88\u8d39\u8005\u7ec4\u8fdb\u884c\u5206\u533a\u5206\u914d\u3002\u8fd9\u662f\u81ea\u52a8\u7ba1\u7406\u7684\u65b9\u5f0f\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u7684\u8d1f\u8f7d\u5747\u8861\u3002\n<\/li>\n<li>\n\u4f7f\u7528 <code>assign<\/code> \u65b9\u6cd5\u65f6\uff0c\u6d88\u8d39\u8005\u76f4\u63a5\u6307\u5b9a\u8981\u6d88\u8d39\u7684\u5206\u533a\u3002\u8fd9\u79cd\u65b9\u5f0f\u66f4\u4e3a\u7cbe\u786e\uff0c\u4f46\u4e5f\u8981\u6ce8\u610f\u81ea\u884c\u7ba1\u7406\u5206\u533a\u5206\u914d\uff0c\u53ef\u80fd\u9700\u8981\u989d\u5916\u7684\u903b\u8f91\u6765\u5904\u7406\u5206\u533a\u7684\u5e73\u8861\u548c\u91cd\u65b0\u5206\u914d\u3002\n<\/li>\n<\/ul>\n<p>\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u9009\u62e9\u4f7f\u7528 <code>subscribe<\/code> \u8fd8\u662f <code>assign<\/code> \u53d6\u51b3\u4e8e\u5e94\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\uff0c\u4ee5\u53ca\u5bf9\u4e8e\u8d1f\u8f7d\u5747\u8861\u548c\u5206\u533a\u5206\u914d\u7684\u63a7\u5236\u7a0b\u5ea6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u662f\u7684\uff0cKafka \u4e2d\u7684\u6d88\u8d39\u8005\uff08Consumer\uff09\u53ef\u4ee5\u6d88\u8d39\u6307\u5b9a\u5206\u533a\u7684\u6d88\u606f\u3002\u6d88\u8d39\u8005\u53ef\u4ee5\u901a\u8fc7\u8ba2\u9605\uff08subscribe [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122],"tags":[],"class_list":["post-14489","post","type-post","status-publish","format-standard","hentry","category-kafka"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=14489"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14489\/revisions"}],"predecessor-version":[{"id":47926,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/14489\/revisions\/47926"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=14489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=14489"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=14489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}