{"id":46727,"date":"2023-11-04T12:03:15","date_gmt":"2023-05-11T01:15:19","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46727-2\/"},"modified":"2024-05-04T07:28:50","modified_gmt":"2024-05-03T23:28:50","slug":"46727-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46727-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u306f\u3058\u3081\u306b<\/h1>\n<p>Kafka\u306f\u8981\u6c42\u30fb\u5fdc\u7b54\u578b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u306b\u306f\u5411\u304b\u306a\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u304c\u3001Spring\u3067\u8981\u6c42\u30fb\u5fdc\u7b54\u7528\u306eTemplate(ReplyingKafkaTemplate)\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u305f\u306e\u3067\u3069\u3093\u306a\u3082\u306e\u304b\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>ReplyingKafkaTemplate \u3092\u4f7f\u7528\u3059\u308b<\/p>\n<h1>\u524d\u63d0<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4e0a\u8a18\u30ea\u30f3\u30af\u306b\u3042\u308b\u30b5\u30f3\u30d7\u30eb\u30fb\u30b3\u30fc\u30c9\u3092\u57fa\u672c\u3001\u305d\u306e\u307e\u307e\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Java 17<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Apache Kafka 3.4.0<\/ul>\n<h1>POM<\/h1>\n<p>Kafka\u5468\u308a\u3067\u4ee5\u4e0b\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\uff08\u4ed6\u306f\u7701\u7565\uff09<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"nt\">&lt;parent&gt;<\/span>\r\n    <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.boot<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n    <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-boot-starter-parent<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n    <span class=\"nt\">&lt;version&gt;<\/span>3.2.0<span class=\"nt\">&lt;\/version&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/parent&gt;<\/span>\r\n\r\n\r\n  <span class=\"nt\">&lt;dependencies&gt;<\/span>\r\n\r\n    <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n      <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.boot<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n      <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-boot-starter<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n    <span class=\"nt\">&lt;dependency&gt;<\/span>\r\n\t  <span class=\"nt\">&lt;groupId&gt;<\/span>org.springframework.kafka<span class=\"nt\">&lt;\/groupId&gt;<\/span>\r\n\t  <span class=\"nt\">&lt;artifactId&gt;<\/span>spring-kafka<span class=\"nt\">&lt;\/artifactId&gt;<\/span>\r\n      <span class=\"nt\">&lt;version&gt;<\/span>3.1.0<span class=\"nt\">&lt;\/version&gt;<\/span>\r\n\t<span class=\"nt\">&lt;\/dependency&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;\/dependencies&gt;<\/span>\r\n<\/code><\/pre>\n<h1>Requester<\/h1>\n<p>\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u3066\u3001\u305d\u306e\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.example<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.time.Duration<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.util.concurrent.TimeUnit<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.apache.kafka.clients.admin.NewTopic<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.apache.kafka.clients.consumer.ConsumerRecord<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.apache.kafka.clients.producer.ProducerRecord<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.ApplicationRunner<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.SpringApplication<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.autoconfigure.SpringBootApplication<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.context.annotation.Bean<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.config.TopicBuilder<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.core.ProducerFactory<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.listener.ConcurrentMessageListenerContainer<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.requestreply.ReplyingKafkaTemplate<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.requestreply.RequestReplyFuture<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.support.SendResult<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@SpringBootApplication<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">App<\/span> \r\n<span class=\"o\">{<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span> <span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span> <span class=\"o\">)<\/span>\r\n    <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span> <span class=\"s\">\"Requester!\"<\/span> <span class=\"o\">);<\/span>\r\n\r\n        <span class=\"nc\">SpringApplication<\/span><span class=\"o\">.<\/span><span class=\"na\">run<\/span><span class=\"o\">(<\/span><span class=\"nc\">App<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">,<\/span> <span class=\"n\">args<\/span><span class=\"o\">).<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Bean<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">ApplicationRunner<\/span> <span class=\"nf\">runner<\/span><span class=\"o\">(<\/span><span class=\"nc\">ReplyingKafkaTemplate<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">template<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">args<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"o\">(!<\/span><span class=\"n\">template<\/span><span class=\"o\">.<\/span><span class=\"na\">waitForAssignment<\/span><span class=\"o\">(<\/span><span class=\"nc\">Duration<\/span><span class=\"o\">.<\/span><span class=\"na\">ofSeconds<\/span><span class=\"o\">(<\/span><span class=\"mi\">10<\/span><span class=\"o\">)))<\/span> <span class=\"o\">{<\/span>\r\n                <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">IllegalStateException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Reply container did not initialize\"<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"o\">}<\/span>\r\n            <span class=\"nc\">ProducerRecord<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">record<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ProducerRecord<\/span><span class=\"o\">&lt;&gt;(<\/span><span class=\"s\">\"kRequests\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"test request\"<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"nc\">RequestReplyFuture<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">replyFuture<\/span> <span class=\"o\">=<\/span> <span class=\"n\">template<\/span><span class=\"o\">.<\/span><span class=\"na\">sendAndReceive<\/span><span class=\"o\">(<\/span><span class=\"n\">record<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"nc\">SendResult<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">sendResult<\/span> <span class=\"o\">=<\/span> <span class=\"n\">replyFuture<\/span><span class=\"o\">.<\/span><span class=\"na\">getSendFuture<\/span><span class=\"o\">().<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"mi\">10<\/span><span class=\"o\">,<\/span> <span class=\"nc\">TimeUnit<\/span><span class=\"o\">.<\/span><span class=\"na\">SECONDS<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Sent ok: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">sendResult<\/span><span class=\"o\">.<\/span><span class=\"na\">getRecordMetadata<\/span><span class=\"o\">());<\/span>\r\n            <span class=\"nc\">ConsumerRecord<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">consumerRecord<\/span> <span class=\"o\">=<\/span> <span class=\"n\">replyFuture<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"mi\">30<\/span><span class=\"o\">,<\/span> <span class=\"nc\">TimeUnit<\/span><span class=\"o\">.<\/span><span class=\"na\">SECONDS<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Return value: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">consumerRecord<\/span><span class=\"o\">.<\/span><span class=\"na\">value<\/span><span class=\"o\">());<\/span>\r\n        <span class=\"o\">};<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Bean<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">ReplyingKafkaTemplate<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">replyingTemplate<\/span><span class=\"o\">(<\/span>\r\n            <span class=\"nc\">ProducerFactory<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">pf<\/span><span class=\"o\">,<\/span>\r\n            <span class=\"nc\">ConcurrentMessageListenerContainer<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">repliesContainer<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\r\n        <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ReplyingKafkaTemplate<\/span><span class=\"o\">&lt;&gt;(<\/span><span class=\"n\">pf<\/span><span class=\"o\">,<\/span> <span class=\"n\">repliesContainer<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@Bean<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">ConcurrentMessageListenerContainer<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">repliesContainer<\/span><span class=\"o\">(<\/span>\r\n            <span class=\"nc\">ConcurrentKafkaListenerContainerFactory<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">containerFactory<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\r\n        <span class=\"nc\">ConcurrentMessageListenerContainer<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">repliesContainer<\/span> <span class=\"o\">=<\/span>\r\n                <span class=\"n\">containerFactory<\/span><span class=\"o\">.<\/span><span class=\"na\">createContainer<\/span><span class=\"o\">(<\/span><span class=\"s\">\"kReplies\"<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">repliesContainer<\/span><span class=\"o\">.<\/span><span class=\"na\">getContainerProperties<\/span><span class=\"o\">().<\/span><span class=\"na\">setGroupId<\/span><span class=\"o\">(<\/span><span class=\"s\">\"repliesGroup\"<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">repliesContainer<\/span><span class=\"o\">.<\/span><span class=\"na\">setAutoStartup<\/span><span class=\"o\">(<\/span><span class=\"kc\">false<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">repliesContainer<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001kRequest\u30c8\u30d4\u30c3\u30af\u306b\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\uff08value\u306f&#8221;test request&#8221;\uff09\u3092\u9001\u4fe1\u3057\u3066\u3001kReplies\u30c8\u30d4\u30c3\u30af\u304b\u3089\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h1>Responder<\/h1>\n<p>\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u3066\u3001\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8fd4\u4fe1\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.example<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.SpringApplication<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.boot.autoconfigure.SpringBootApplication<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.kafka.annotation.KafkaListener<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.messaging.handler.annotation.SendTo<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@SpringBootApplication<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">App<\/span> \r\n<span class=\"o\">{<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span> <span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span> <span class=\"o\">)<\/span>\r\n    <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span> <span class=\"s\">\"Responder!\"<\/span> <span class=\"o\">);<\/span>\r\n\r\n        <span class=\"nc\">SpringApplication<\/span><span class=\"o\">.<\/span><span class=\"na\">run<\/span><span class=\"o\">(<\/span><span class=\"nc\">App<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">,<\/span> <span class=\"n\">args<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@KafkaListener<\/span><span class=\"o\">(<\/span><span class=\"n\">id<\/span><span class=\"o\">=<\/span><span class=\"s\">\"server\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">topics<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"kRequests\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"nd\">@SendTo<\/span> <span class=\"c1\">\/\/ use default replyTo expression<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">listen<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">in<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Server received: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">in<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">in<\/span><span class=\"o\">.<\/span><span class=\"na\">toUpperCase<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001kRequests\u30c8\u30d4\u30c3\u30af\u3092Listen\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u305f\u3089\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092\u5927\u6587\u5b57\u306b\u5909\u63db\u3057\u3066\u3001\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3057\u3066\u8fd4\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h1>\u52d5\u4f5c\u78ba\u8a8d<\/h1>\n<p>\u3067\u306f\u3001\u52d5\u304b\u3057\u3066\u307f\u307e\u3059\u3002<br \/>\n\u30ea\u30f3\u30af\u5148\u306e\u30b5\u30f3\u30d7\u30eb\u30fb\u30b3\u30fc\u30c9\u3067\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u3067\u30c8\u30d4\u30c3\u30af\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u4eca\u56de\u305d\u306e\u90e8\u5206\u306f\u7701\u3044\u305f\u306e\u3067\u3001\u4e8b\u524d\u306bkRequests\u30c8\u30d4\u30c3\u30af\u3068kReplies\u30c8\u30d4\u30c3\u30af\u306f\u4f5c\u6210\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306b\u3001Responder\u3092\u8d77\u52d5\u3057\u3066\u3001Requester\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<p>Requester\u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u306f\u4ee5\u4e0b\u304c\u51fa\u529b\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<pre class=\"post-pre\"><code>Sent ok: kRequests-0@0\r\nReturn value: TEST REQUEST\r\n<\/code><\/pre>\n<p>\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u4fe1\u304c\u6210\u529f\u3057\u3001\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8fd4\u3063\u3066\u304d\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br \/>\n\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u306evalue&#8221;test request&#8221;\u304c\u3001\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u306f\u5927\u6587\u5b57\u306b\u5909\u63db\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Responder\u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u306f\u4ee5\u4e0b\u304c\u51fa\u529b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>Server received: test request\r\n<\/code><\/pre>\n<p>\u5225\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08\u81ea\u4f5c\uff09\u3092\u4f7f\u3063\u3066\u3001\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4e2d\u8eab\u3092\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\uff08\uff13\u4ef6\u5206\uff09<\/p>\n<pre class=\"post-pre\"><code>Ts: 1701650039532, FmdTs: 2023-12-04 09:33:59.532, Topic: kRequests, Partition: 0, Offset: 0, Key: null, Value: test request, Headers: key=kafka_replyTopic value(str)=kReplies value(byte)=746f7069633032 key=kafka_correlationId value(str)=\ufffds\ufffd^\u01e1I\ufffd\ufffd\ufffd$\"\ufffd\ufffd value(byte)=8673b95ec7a149f18ac4fb24221994f2\r\nTs: 1701650844371, FmdTs: 2023-12-04 09:47:24.371, Topic: kRequests, Partition: 2, Offset: 0, Key: null, Value: test request, Headers: key=kafka_replyTopic value(str)=kReplies value(byte)=746f7069633032 key=kafka_correlationId value(str)=s\ufffdu\ufffdRAE\ufffd\ufffdqvOO\ufffd\ufffdU value(byte)=73a775f0524145f49071764f4fedd855\r\nTs: 1701650914858, FmdTs: 2023-12-04 09:48:34.858, Topic: kRequests, Partition: 1, Offset: 1, Key: null, Value: test request, Headers: key=kafka_replyTopic value(str)=kReplies value(byte)=746f7069633032 key=kafka_correlationId value(str)=\ufffdB\u029eH\ufffdM\u04edo\ufffdgc2M\ufffd value(byte)=b842ca9e48de4dd3ad6fb86763324da7\r\n<\/code><\/pre>\n<p>\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u306f\u4ee5\u4e0b\u306e\uff12\u3064\u306e\u30d8\u30c3\u30c0\u30fc(key=value)\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">kafka_replyTopic=kReplies<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">kafka_correlationId=8673b95ec7a149f18ac4fb24221994f2\uff08\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u306eHex\u8868\u8a18)<\/ul>\n<p>\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\uff08\uff13\u4ef6\u5206\uff09<\/p>\n<pre class=\"post-pre\"><code>Ts: 1701650039646, FmdTs: 2023-12-04 09:33:59.646, Topic: kReplies, Partition: 2, Offset: 0, Key: null, Value: TEST REQUEST, Headers: key=kafka_correlationId value(str)=\ufffds\ufffd^\u01e1I\ufffd\ufffd\ufffd$\"\ufffd\ufffd value(byte)=8673b95ec7a149f18ac4fb24221994f2\r\nTs: 1701650844407, FmdTs: 2023-12-04 09:47:24.407, Topic: kReplies, Partition: 2, Offset: 1, Key: null, Value: TEST REQUEST, Headers: key=kafka_correlationId value(str)=s\ufffdu\ufffdRAE\ufffd\ufffdqvOO\ufffd\ufffdU value(byte)=73a775f0524145f49071764f4fedd855\r\nTs: 1701650914886, FmdTs: 2023-12-04 09:48:34.886, Topic: kReplies, Partition: 2, Offset: 2, Key: null, Value: TEST REQUEST, Headers: key=kafka_correlationId value(str)=\ufffdB\u029eH\ufffdM\u04edo\ufffdgc2M\ufffd value(byte)=b842ca9e48de4dd3ad6fb86763324da7\r\n<\/code><\/pre>\n<p>\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u306f\u4ee5\u4e0b\u306e\u30d8\u30c3\u30c0\u30fc\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">kafka_correlationId=8673b95ec7a149f18ac4fb24221994f2\uff08\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u306eHex\u8868\u8a18)<\/ul>\n<h1>\u4ed5\u7d44\u307f<\/h1>\n<p>ReplyingKafkaTemplate\u306f\u3001kafka_correlationId\u30d8\u30c3\u30c0\u30fc\u3092\u5229\u7528\u3057\u3066\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u7d10\u4ed8\u3051\u3092\u884c\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Requester\u5074\u3067\u306f\u3001ReplyingKafkaTemplate\u306esendAndReceive\u30e1\u30bd\u30c3\u30c9\u3067\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u5185\u90e8\u7684\u306b\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u306ekafka_correlationId\u30d8\u30c3\u30c0\u30fc\u306b\u30e6\u30cb\u30fc\u30af\u306a\u5024\u304c\u30bb\u30c3\u30c8\u3055\u308c\u307e\u3059\u3002\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u53d7\u4fe1\u51e6\u7406\u3067\u306fkafka_correlationId\u30d8\u30c3\u30c0\u30fc\u306b\u540c\u3058\u5024\u3092\u6301\u3064\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u307e\u3059\u3002<br \/>\nsetCorrelationHeaderName(String replyTopicHeaderName)\u3084setBinaryCorrelation(boolean binaryCorrelation)\u3092\u5229\u7528\u3057\u3066\u3001\u30d8\u30c3\u30c0\u30fc\u540d\u3084\u30d8\u30c3\u30c0\u30fc\u306b\u4ed8\u4e0e\u3059\u308b\u5024\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u30d0\u30a4\u30ca\u30ea\u30fb\u30c7\u30fc\u30bf\uff09\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d65f137434c4406d088fc\/36-0.png\" alt=\"image.png\" \/><\/div>\n<p>Responder\u5074\u3067\u306f\u3001@SendTo \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\uff08\u30d7\u30ed\u30d1\u30c6\u30a3\u306a\u3057\uff09\u3092\u4f7f\u3046\u3053\u3068\u3067\u53d7\u4fe1\u3057\u305f\u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u306ekafka_correlationId\u30d8\u30c3\u30c0\u30fc\u3092\u305d\u306e\u307e\u307e\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u3082\u4ed8\u52a0\u3057\u3001kafka_replyTopic\u30d8\u30c3\u30c0\u30fc\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u30c8\u30d4\u30c3\u30af\u306b\u5fdc\u7b54\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8fd4\u4fe1\u3057\u307e\u3059\u3002<br \/>\nForwarding Listener Results using @SendTo<\/p>\n<h1>\u307e\u3068\u3081<\/h1>\n<p>Spring\u306eReplyingKafkaTemplate\u3092\u4f7f\u3046\u3053\u3068\u3067Kafka\u3067\u3082\u7c21\u5358\u306b\u8981\u6c42\u30fb\u5fdc\u7b54\u578b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u304c\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<br \/>\nKafka\u3067\u8981\u6c42\u30fb\u5fdc\u7b54\u3092\u5b9f\u88c5\u3059\u308b\u610f\u5473\u306f\uff1f\u3063\u3066\u306e\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u4eca\u56de\u306f\u52d5\u304b\u3057\u3066\u307f\u305f\u5831\u544a\u3067\u3057\u305f\u3002\u4ed6\u306b\u3082\u3044\u308d\u3044\u308d\u3067\u304d\u308b\u3053\u3068\u304c\u3042\u308a\u305d\u3046\u306a\u306e\u3067\u3001\u6642\u9593\u304c\u3042\u308c\u3070\u8a66\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b Kafka\u306f\u8981\u6c42\u30fb\u5fdc\u7b54\u578b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u306b\u306f\u5411\u304b\u306a\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u304c\u3001Spring\u3067\u8981\u6c42\u30fb\u5fdc\u7b54\u7528\u306e [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46727","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- 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\/46727-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b Kafka\u306f\u8981\u6c42\u30fb\u5fdc\u7b54\u578b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u306b\u306f\u5411\u304b\u306a\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u304c\u3001Spring\u3067\u8981\u6c42\u30fb\u5fdc\u7b54\u7528\u306e [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/46727-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-11T01:15:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-03T23:28:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d65f137434c4406d088fc\/36-0.png\" \/>\n<meta name=\"author\" content=\"\u97f5, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u97f5, \u79d1\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/46727-2\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/46727-2\/\",\"name\":\"- Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-05-11T01:15:19+00:00\",\"dateModified\":\"2024-05-03T23:28:50+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/46727-2\/\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon 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