{"id":248,"date":"2024-12-25T17:45:34","date_gmt":"2024-12-25T17:45:34","guid":{"rendered":"https:\/\/www.isvmspace.com\/?p=248"},"modified":"2024-12-25T17:45:34","modified_gmt":"2024-12-25T17:45:34","slug":"kafka-java%e5%ae%a2%e6%88%b7%e7%ab%af","status":"publish","type":"post","link":"https:\/\/www.isvmspace.com\/?p=248","title":{"rendered":"Kafka-Java\u5ba2\u6237\u7aef"},"content":{"rendered":"

kafka-clients<\/h1>\n
<dependency>\n  <groupId>org.apache.kafka<\/groupId>\n  <artifactId>kafka-clients<\/artifactId>\n  <version>${kafka-clients.version}<\/version>\n<\/dependency>\n<\/code><\/pre>\n
Producer<\/h2>\n
\u751f\u4ea7\u8005\u57fa\u7840\u53c2\u6570<\/h3>\n
bootstrap.servers<\/strong><\/p>\n
\u6307\u5b9a\u751f\u4ea7\u8005\u5ba2\u6237\u7aef\u8fde\u63a5kafka\u96c6\u7fa4\u6240\u9700\u7684broker\u5730\u5740\u5217\u8868\uff0c\u683c\u5f0f\u4e3ahost1:port1,host2:port2\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a\u6216\u591a\u4e2a\n<\/code><\/pre>\n
key.serializer<\/strong><\/p>\n
broker\u63a5\u6536\u6d88\u606f\u5fc5\u987b\u4ee5\u5b57\u8282\u6570\u7ec4byte[]\u5f62\u5f0f\u5b58\u5728\uff0cKafkaProducer<K,V>\u548cProducerRecord<K,V>\u4e2d\u7684\u6cdb\u578b\u5c31\u662fkey\u548cvalue\u7684\u7c7b\u578b\n\u53ef\u4ee5\u4f7f\u7528kafka\u81ea\u5e26\u7684\u5e8f\u5217\u5316\u5de5\u5177\n<\/code><\/pre>\n
org.apache.kafka.common.serialization.StringSerializer\n<\/code><\/pre>\n
value.seriablizer<\/strong><\/p>\n
broker\u63a5\u6536\u6d88\u606f\u5fc5\u987b\u4ee5\u5b57\u8282\u6570\u7ec4byte[]\u5f62\u5f0f\u5b58\u5728\uff0cKafkaProducer<K,V>\u548cProducerRecord<K,V>\u4e2d\u7684\u6cdb\u578b\u5c31\u662fkey\u548cvalue\u7684\u7c7b\u578b\n\u53ef\u4ee5\u4f7f\u7528kafka\u81ea\u5e26\u7684\u5e8f\u5217\u5316\u5de5\u5177\n\n<\/code><\/pre>\n
org.apache.kafka.common.serialization.StringSerializer\n<\/code><\/pre>\n
\u751f\u4ea7\u8005\u6838\u5fc3\u53c2\u6570<\/h3>\n
acks<\/strong><\/p>\n
0\uff1aproducer\u4e0d\u7b49\u5f85broker\u7684ack\uff0c\u8fd9\u4e00\u64cd\u4f5c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6700\u4f4e\u7684\u5ef6\u8fdf\uff0cbroker\u4e00\u63a5\u6536\u5230\u8fd8\u6ca1\u6709\u5199\u5165\u78c1\u76d8\u5c31\u5df2\u7ecf\u8fd4\u56de\uff0c\u5f53 broker\u6545\u969c\u65f6\u6709\u53ef\u80fd\u4e22\u5931\u6570\u636e\uff1b\n1\uff1aproducer\u7b49\u5f85broker\u7684ack\uff0c\u5206\u533a\u7684leader\u843d\u76d8\u6210\u529f\u540e\u8fd4\u56deack\uff0c\u5982\u679c\u5728follower\u540c\u6b65\u6210\u529f\u4e4b\u524dleader\u6545\u969c\uff0c\u90a3\u4e48\u5c06\u4f1a\u4e22\u5931\u6570\u636e\uff1b\n-1\uff08all\uff09\uff1aproducer\u7b49\u5f85broker\u7684ack\uff0c\u5206\u533a\u7684leader\u548cfollower\u5168\u90e8\u843d\u76d8\u6210\u529f\u540e\u624d\u8fd4\u56deack\u3002\u4f46\u662f\u5982\u679c\u5728follower\u540c\u6b65\u5b8c\u6210\u540e\uff0cbroker\u53d1\u9001ack\u4e4b\u524d\uff0cleader\u53d1\u751f\u6545\u969c\uff0c\u90a3\u4e48\u4f1a\u9020\u6210\u6570\u636e\u91cd\u590d\u3002\n<\/code><\/pre>\n
max.request.size<\/strong><\/p>\n
\u7528\u6765\u9650\u5236\u751f\u4ea7\u8005\u5ba2\u6237\u7aef\u80fd\u53d1\u9001\u7684\u6d88\u606f\u7684\u6700\u5927\u503c\uff0c\u9ed8\u8ba4\u503c\u4e3a1048576B\uff0c\u53731MB\uff0c\u4e00\u822c\u4e0d\u5efa\u8bae\u6539\n<\/code><\/pre>\n
retries<\/strong><\/p>\n
\u751f\u4ea7\u8005\u91cd\u8bd5\u6b21\u6570\uff0c\u9ed8\u8ba4\u503c0\n<\/code><\/pre>\n
buffer.memory<\/strong><\/p>\n
\u751f\u4ea7\u7aef\u6d88\u606f\u7f13\u51b2\u6c60\u6216\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff0c\u9ed8\u8ba4\u503c 32 * 1024 * 1024L\n<\/code><\/pre>\n
batch.size<\/strong><\/p>\n
\u53d1\u9001\u5230\u7f13\u51b2\u533a\u4e2d\u7684\u6d88\u606f\u4f1a\u88ab\u5206\u4e3a\u4e00\u4e2a\u4e00\u4e2a\u7684batch\uff0c\u5206\u6279\u6b21\u7684\u53d1\u9001\u5230broker\u7aef\uff0c\u8fd9\u4e2a\u53c2\u6570\u5c31\u8868\u793abatch\u6279\u6b21\u5927\u5c0f\uff0c\u9ed8\u8ba4\u503c\u4e3a16384\uff0c\u537316KB\u3002\u56e0\u6b64\u51cf\u5c0fbatch\u5927\u5c0f\u6709\u5229\u4e8e\u964d\u4f4e\u6d88\u606f\u5ef6\u65f6\uff0c\u589e\u52a0batch\u5927\u5c0f\u6709\u5229\u4e8e\u63d0\u5347\u541e\u5410\u91cf\u3002\n<\/code><\/pre>\n
linger.ms<\/strong><\/p>\n
\u7528\u6765\u63a7\u5236batch\u6700\u5927\u7684\u7a7a\u95f2\u65f6\u95f4\uff0c\u8d85\u8fc7\u8be5\u65f6\u95f4\u7684batch\u4e5f\u4f1a\u88ab\u53d1\u9001\u5230broker\u7aef\n<\/code><\/pre>\n
request.timeout.ms<\/strong><\/p>\n
\u8868\u793a\u751f\u4ea7\u7aef\u53d1\u9001\u8bf7\u6c42\u540e\u7b49\u5f85broker\u7aef\u54cd\u5e94\u7684\u6700\u957f\u65f6\u95f4\uff0c\u9ed8\u8ba4\u503c\u4e3a30000\uff0c\u537330s\uff0c\u8d85\u65f6\u751f\u4ea7\u7aef\u53ef\u80fd\u4f1a\u9009\u62e9\u91cd\u8bd5\uff08\u5982\u679c\u914d\u7f6e\u4e86retries\uff09\n<\/code><\/pre>\n
Consumer<\/h2>\n
\u6d88\u8d39\u8005\u57fa\u7840\u53c2\u6570<\/h3>\n
bootstrap.servers<\/strong><\/p>\n
\u53c2\u8003\u751f\u4ea7\u8005<\/p>\n
key.deserializer<\/strong><\/p>\n
value.deserializer<\/strong><\/p>\n
\u6d88\u8d39\u8005\u6838\u5fc3\u53c2\u6570<\/h3>\n
group.id<\/strong><\/p>\n
\u7ec4id,\u6807\u8bc6\u4e00\u4e2aconsumer\u7ec4\u7684\u540d\u79f0\n<\/code><\/pre>\n
enable.auto.commit<\/strong><\/p>\n
boolean \u7c7b\u578b\uff0c\u914d\u7f6e\u662f\u5426\u5f00\u542f\u81ea\u52a8\u63d0\u4ea4\u6d88\u8d39\u4f4d\u79fb\u7684\u529f\u80fd\uff0c\u9ed8\u8ba4\u5f00\u542f\n<\/code><\/pre>\n
auto.commit.interval.ms<\/strong><\/p>\n
\u5f53enbale.auto.commit\u53c2\u6570\u8bbe\u7f6e\u4e3a true \u65f6\u624d\u751f\u6548\uff0c\u8868\u793a\u5f00\u542f\u81ea\u52a8\u63d0\u4ea4\u6d88\u8d39\u4f4d\u79fb\u529f\u80fd\u65f6\u81ea\u52a8\u63d0\u4ea4`\u6d88\u8d39\u4f4d\u79fb`\u7684\u65f6\u95f4\u95f4\u9694\n<\/code><\/pre>\n
auto.offset.reset<\/strong><\/p>\n
\u5f53\u6d88\u8d39\u8005\u8bfb\u53d6\u504f\u79fb\u91cf\u65e0\u6548\u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u91cd\u7f6e\u6d88\u8d39\u8d77\u59cb\u4f4d\u7f6e\uff0c\u53ef\u9009\u503c\uff1a\"latest\", \"earliest\", \"none\"\nlatest: \u4ece\u6d88\u8d39\u8005\u542f\u52a8\u540e\u751f\u6210\u7684\u8bb0\u5f55 \uff08\u9ed8\u8ba4\u503c\uff09\nearliest: \u5c06\u4ece\u6709\u6548\u7684\u6700\u5c0f\u4f4d\u79fb\u4f4d\u7f6e\u5f00\u59cb\u6d88\u8d39\n<\/code><\/pre>\n
max.poll.records<\/strong><\/p>\n
\u6d88\u8d39\u8005\u6bcf\u6b21poll\u6700\u5927\u6570\u636e\u91cf\uff0c\u9ed8\u8ba4500\n<\/code><\/pre>\n
\u6d88\u8d39\u8005\u6d88\u606f\u624b\u52a8\u63d0\u4ea4<\/h3>\n
\u624b\u52a8\u63d0\u4ea4-sync<\/strong><\/p>\n
-- \u540c\u6b65\u63d0\u4ea4\uff0c\u5f53\u524d\u7ebf\u7a0b\u4f1a\u963b\u585e\u76f4\u5230offset\u63d0\u4ea4\u6210\u529f\norg.apache.kafka.clients.consumer.KafkaConsumer#commitSync()\n<\/code><\/pre>\n
\u624b\u52a8\u63d0\u4ea4-async<\/strong><\/p>\n
-- \u5f02\u6b65\u6ca1\u6709\u5931\u8d25\u91cd\u8bd5\u673a\u5236\uff0c\u6545\u6709\u53ef\u80fd\u63d0\u4ea4\u5931\u8d25\norg.apache.kafka.clients.consumer.KafkaConsumer#commitAsync()\n<\/code><\/pre>\n
kafka-springboot<\/h2>\n
    <dependency>\n      <groupId>org.springframework.kafka<\/groupId>\n      <artifactId>spring-kafka<\/artifactId>\n      <version>${spring-kafka.version}<\/version>\n    <\/dependency>\n<\/code><\/pre>\n
\u914d\u7f6e\u6587\u4ef6<\/p>\n
spring:\n  kafka:\n    bootstrap-servers: 127.0.0.1:9092\n    # \u751f\u4ea7\u8005\u914d\u7f6e\n    producer:\n      retries: 3 # \u8bbe\u7f6e\u5927\u4e8e0\u7684\u503c\uff0c\u5219\u5ba2\u6237\u7aef\u4f1a\u5c06\u53d1\u9001\u5931\u8d25\u7684\u8bb0\u5f55\u91cd\u65b0\u53d1\u9001\n      batch-size: 16384 #16K\n      buffer-memory: 33554432 #32M\n      acks: all\n      # \u6307\u5b9a\u6d88\u606fkey\u548c\u6d88\u606f\u4f53\u7684\u7f16\u89e3\u7801\u65b9\u5f0f\n      key-serializer: org.apache.kafka.common.serialization.StringSerializer\n      value-serializer: org.apache.kafka.common.serialization.StringSerializer\n    # \u6d88\u8d39\u8005\u914d\u7f6e\n    consumer:\n      group-id: springboot-gid-001\n      enable-auto-commit: true\n      auto-offset-reset: earliest\n      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer\n      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer\n    listener:\n      concurrency: 3\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
kafka-clients <dependency> <groupId>org.apa […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=\/wp\/v2\/posts\/248"}],"collection":[{"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=248"}],"version-history":[{"count":3,"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=\/wp\/v2\/posts\/248\/revisions"}],"predecessor-version":[{"id":251,"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=\/wp\/v2\/posts\/248\/revisions\/251"}],"wp:attachment":[{"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.isvmspace.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}