{"id":46686,"date":"2023-07-27T15:43:32","date_gmt":"2023-09-27T09:41:05","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46686-2\/"},"modified":"2024-04-30T15:39:08","modified_gmt":"2024-04-30T07:39:08","slug":"46686-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46686-2\/","title":{"rendered":""},"content":{"rendered":"

Kafka\u3068\u306f<\/h1>\n

\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30df\u30c9\u30eb\u30a6\u30a7\u30a2
\n– \u516c\u5f0f\u30b5\u30a4\u30c8
\n– Apache Kafka, \u4ed6\u3068\u306f\u7570\u306a\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0
\n– Qiita\u306e\u8a18\u4e8b<\/p>\n

\u3068\u308a\u3042\u3048\u305a\u3001\u52d5\u304f\u3068\u3053\u307e\u3067\u3002<\/p>\n

Clojure\u306eKafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8<\/h1>\n

\u5229\u7528\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea
\n– clj-kafka<\/p>\n

\u5229\u7528\u3059\u308bKafka\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f0.8.2\u3002\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3068\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u306e\u52d5\u4f5c\u78ba\u8a8d\u306f\u516c\u5f0f\u306equick start\u3067\u78ba\u8a8d\u3002<\/p>\n

\u30b5\u30f3\u30d7\u30eb\u30a2\u30d7\u30ea<\/h1>\n

1.leiningen\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n

\u516c\u5f0f\u30b5\u30a4\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5f93\u3063\u3066\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/p>\n

2.compojure\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u5229\u7528<\/h2>\n

\u516c\u5f0f\u30b5\u30a4\u30c8<\/p>\n

\u4e0b\u8a18\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u81ea\u52d5\u3067compojure\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u5c55\u958b\u3055\u308c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u96db\u5f62\u304c\u751f\u6210\u3055\u308c\u308b(\u3053\u306e\u3068\u304dcompojure\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u30ed\u30fc\u30ab\u30eb\u306eMaven\u30ea\u30dd\u30b8\u30c8\u30ea\u306b\u5b58\u5728\u3059\u308c\u3070\u305d\u308c\u3092\u5229\u7528\u3057\u3001\u5b58\u5728\u3057\u306a\u3051\u308c\u3070\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u308b)\u3002<\/p>\n

lein new compojure \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\r\n<\/code><\/pre>\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u306fexweb\u306b\u3059\u308b\u3002
\n\u4e0b\u8a18\u306e\u30b3\u30de\u30f3\u30c9\u3067\u30b5\u30fc\u30d0\u3092\u8d77\u52d5<\/p>\n
lein ring server<\/p>\n
\u4e0b\u8a18\u306eURI\u306b\u30d6\u30e9\u30a6\u30b6\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u300cHello World\u300d\u3068\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
http:\/\/localhost:3000\/<\/p>\n
3.project.clj\u306e\u7de8\u96c6<\/h2>\n
\r\n(<\/span>defproject<\/span> exweb<\/span> \"0.1.0-SNAPSHOT\"<\/span>\r\n  :description<\/span> \"compojure sample\"<\/span>\r\n  :url<\/span> \"http:\/\/example.com\/exweb\"<\/span>\r\n  :min-lein-version<\/span> \"2.0.0\"<\/span>\r\n  :dependencies<\/span> [[<\/span>org.clojure\/clojure<\/span> \"1.7.0\"<\/span>]<\/span>\r\n                 [<\/span>compojure<\/span> \"1.4.0\"<\/span>]<\/span>\r\n                 [<\/span>ring\/ring-defaults<\/span> \"0.1.5\"<\/span>]<\/span>\r\n                 [<\/span>clj-kafka<\/span> \"0.3.4\"<\/span>]]<\/span> ;; \u8ffd\u52a0<\/span>\r\n  :plugins<\/span> [[<\/span>lein-ring<\/span> \"0.9.7\"<\/span>]]<\/span>\r\n  :ring<\/span> {<\/span>:handler<\/span> exweb.handler\/app<\/span>}<\/span>\r\n  :profiles<\/span> {<\/span>:dev<\/span> {<\/span>:dependencies<\/span> [[<\/span>javax.servlet\/servlet-api<\/span> \"2.5\"<\/span>]<\/span>\r\n                                  [<\/span>ring\/ring-mock<\/span> \"0.3.0\"<\/span>]]}}<\/span>\r\n  )<\/span>\r\n<\/code><\/pre>\n
4.kafka\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u4f5c\u6210<\/h2>\n
\r\n(<\/span>ns<\/span> exweb.kafka<\/span>\r\n  (<\/span>:require<\/span>\r\n    [<\/span>clj-kafka.core<\/span> :as<\/span> kafka<\/span>]<\/span>\r\n    [<\/span>clj-kafka.new.producer<\/span> :as<\/span> kafka-pd<\/span>]<\/span>\r\n    [<\/span>clj-kafka.consumer.zk<\/span> :as<\/span> kafka-zk<\/span>])<\/span>\r\n  (<\/span>:import<\/span> [<\/span>kafka.serializer<\/span> StringDecoder<\/span>]<\/span>\r\n           [<\/span>kafka.consumer<\/span> KafkaStream<\/span>]))<\/span>\r\n\r\n;;Producer\u7528\u306e\u8a18\u8ff0<\/span>\r\n(<\/span>def<\/span> producer-config<\/span> {<\/span>\"bootstrap.servers\"<\/span> \"localhost:9092\"<\/span>})<\/span>\r\n\r\n(<\/span>defn<\/span> send-message-to-kafka<\/span> [<\/span>msg<\/span>]<\/span>\r\n  (<\/span>with-open<\/span> [<\/span>p<\/span> (<\/span>kafka-pd\/producer<\/span> producer-config<\/span> (<\/span>kafka-pd\/string-serializer<\/span>)<\/span> (<\/span>kafka-pd\/string-serializer<\/span>))]<\/span>\r\n    @<\/span>(<\/span>kafka-pd\/send<\/span> p<\/span> (<\/span>kafka-pd\/record<\/span> \"test\"<\/span> msg<\/span>))))<\/span>\r\n\r\n\r\n;;Consumer\u7528\u306e\u8a18\u8ff0<\/span>\r\n(<\/span>def<\/span> consumer-config<\/span> {<\/span>\"zookeeper.connect\"<\/span>  \"localhost:2181\"<\/span>\r\n                      \"group.id\"<\/span>           \"consumer-01\"<\/span>\r\n                      \"auto.offset.reset\"<\/span>  \"smallest\"<\/span>\r\n                      \"auto.commit.enable\"<\/span> \"false\"<\/span>})<\/span>\r\n\r\n(<\/span>defn<\/span> to-messages<\/span>\r\n  \"\u30b9\u30c8\u30ea\u30fc\u30e0\u304b\u3089\u3001\u5024\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u308a\u51fa\u3057\u3001\u8fd4\u3059\u3002\"<\/span>\r\n  [<\/span>^<\/span>KafkaStream<\/span> stream<\/span>]<\/span>\r\n  (<\/span>->><\/span> (<\/span>.iterator<\/span> stream<\/span>)<\/span>\r\n       iterator-seq<\/span>\r\n       (<\/span>map<\/span> kafka\/to-clojure<\/span>)<\/span>\r\n       (<\/span>map<\/span> :value<\/span>)))<\/span>\r\n\r\n(<\/span>defn<\/span> string-decoder<\/span> \"\u6587\u5b57\u5217\u30c7\u30b3\u30fc\u30c0\u3092\u8fd4\u3059\"<\/span> []<\/span> (<\/span>StringDecoder.<\/span> nil<\/span>))<\/span>\r\n\r\n(<\/span>defn<\/span> consume-messages<\/span> \r\n  \"\u73fe\u5728\u306eTopic\u304b\u3089\u5168\u3066\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8aad\u307f\u3053\u307f\u3001\u8fd4\u3059\"<\/span>\r\n  []<\/span>\r\n  (<\/span>kafka\/with-resource<\/span> [<\/span>c<\/span> (<\/span>kafka-zk\/consumer<\/span> consumer-config<\/span>)]<\/span>\r\n                       kafka-zk\/shutdown<\/span>\r\n                       (<\/span>to-messages<\/span> (<\/span>kafka-zk\/create-message-stream<\/span> c<\/span> \"test\"<\/span> (<\/span>string-decoder<\/span>)<\/span> (<\/span>string-decoder<\/span>)))))<\/span>\r\n<\/code><\/pre>\n
5.handler\u306e\u4fee\u6b63<\/h2>\n
(<\/span>ns<\/span> exweb.handler<\/span>\r\n  (<\/span>:require<\/span> [<\/span>compojure.core<\/span> :refer<\/span> :all<\/span>]<\/span>\r\n            [<\/span>compojure.route<\/span> :as<\/span> route<\/span>]<\/span>\r\n            [<\/span>ring.middleware.defaults<\/span> :refer<\/span> [<\/span>wrap-defaults<\/span> site-defaults<\/span>]]<\/span>\r\n            [<\/span>exweb.kafka<\/span> :refer<\/span> :all<\/span>]))<\/span>\r\n\r\n(<\/span>defroutes<\/span> app-routes<\/span>\r\n           (<\/span>GET<\/span> \"\/\"<\/span> []<\/span> \"Hello World\"<\/span>)<\/span>\r\n           (<\/span>GET<\/span> \"\/send\"<\/span> [<\/span>msg<\/span>]<\/span> (<\/span>str<\/span> (<\/span>send-message-to-kafka<\/span> msg<\/span>)))<\/span>\r\n           (<\/span>GET<\/span> \"\/show\"<\/span> []<\/span> (<\/span>consume-messages<\/span>))<\/span>\r\n           (<\/span>route\/not-found<\/span> \"Not Found\"<\/span>))<\/span>\r\n\r\n(<\/span>def<\/span> app<\/span>\r\n  (<\/span>wrap-defaults<\/span> app-routes<\/span> site-defaults<\/span>))<\/span>\r\n\r\n<\/code><\/pre>\n
6.\u52d5\u4f5c\u78ba\u8a8d<\/h2>\n
\u30b5\u30fc\u30d0\u3092\u8d77\u52d5<\/p>\n
lein ring server<\/p>\n
\u4e0b\u8a18\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1<\/p>\n
http:\/\/localhost\/send?msg=Kafka Message<\/p>\n
\u30d6\u30e9\u30a6\u30b6\u4e0a\u306b\u306f\u300c{:topic “test”, :partition 0, :offset 1}\u300d\u3068\u8868\u793a\u3002<\/p>\n
\u4e0b\u8a18\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d6\u5f97\u3057\u3001\u8868\u793a<\/p>\n
http:\/\/localhost\/show<\/p>\n
\u30d6\u30e9\u30a6\u30b6\u4e0a\u306b\u300cKafka Message\u300d\u3068\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Kafka\u3068\u306f \u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30df\u30c9\u30eb\u30a6\u30a7\u30a2 – \u516c\u5f0f\u30b5\u30a4\u30c8 – Apache Kafk […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46686","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/46686-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"Kafka\u3068\u306f \u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30df\u30c9\u30eb\u30a6\u30a7\u30a2 – \u516c\u5f0f\u30b5\u30a4\u30c8 – Apache Kafk […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/46686-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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