Spring-Kafka 集成 1.0.0.RELEASE 问题与生产者 [英] Spring-Kafka Integration 1.0.0.RELEASE Issue with Producer

问题描述

我无法使用 Spring Kafka 集成发布消息，但我的 Kafka Java 客户端工作正常.

I am not able to publish message using Spring Kafka Integration, though my Kafka Java Client is working fine.

Java 代码运行在 Windows 上，Kafka 运行在 Linux 机器上.

The Java code is running on Windows and Kafka is running on Linux box.

 KafkaProducerContext<String, String> kafkaProducerContext = new KafkaProducerContext<String, String>();
    ProducerMetadata<String, String> producerMetadata = new ProducerMetadata<String, String>("test-cass");
    producerMetadata.setValueClassType(String.class);
    producerMetadata.setKeyClassType(String.class);
    Encoder<String> encoder = new StringEncoder<String>();
    producerMetadata.setValueEncoder(encoder);
    producerMetadata.setKeyEncoder(encoder);

    ProducerFactoryBean<String, String> producer = new ProducerFactoryBean<String, String>(producerMetadata, "172.16.1.42:9092");

    ProducerConfiguration<String, String> config = new ProducerConfiguration<String, String>(producerMetadata, producer.getObject());
    kafkaProducerContext.setProducerConfigurations(Collections.singletonMap("test-cass", config));
    KafkaProducerMessageHandler<String, String> handler = new KafkaProducerMessageHandler<String, String>(kafkaProducerContext);
    handler.handleMessage(MessageBuilder.withPayload("foo")
            .setHeader("messagekey", "3")
            .setHeader("topic", "test-cass")
            .build());

我收到以下错误

"C:\Program Files\Java\jdk1.7.0_71\bin\java" -Didea.launcher.port=7542 "-Didea.launcher.bin.path=C:\Program Files (x86)\JetBrains\IntelliJ IDEA 13.1.6\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.7.0_71\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\jce.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\jfxrt.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\resources.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\rt.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.7.0_71\jre\lib\ext\zipfs.jar;C:\projects\SpringCassandraInt\target\classes;C:\Users\hs\.m2\repository\org\springframework\data\spring-data-cassandra\1.1.2.RELEASE\spring-data-cassandra-1.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\data\spring-cql\1.1.2.RELEASE\spring-cql-1.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\spring-context\4.1.4.RELEASE\spring-context-4.1.4.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\spring-aop\4.1.4.RELEASE\spring-aop-4.1.4.RELEASE.jar;C:\Users\hs\.m2\repository\aopalliance\aopalliance\1.0\aopalliance-1.0.jar;C:\Users\hs\.m2\repository\org\springframework\spring-beans\4.0.9.RELEASE\spring-beans-4.0.9.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\spring-core\4.1.2.RELEASE\spring-core-4.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\hs\.m2\repository\org\springframework\spring-expression\4.1.2.RELEASE\spring-expression-4.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\spring-tx\4.1.4.RELEASE\spring-tx-4.1.4.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\data\spring-data-commons\1.9.2.RELEASE\spring-data-commons-1.9.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\slf4j\slf4j-api\1.7.10\slf4j-api-1.7.10.jar;C:\Users\hs\.m2\repository\org\slf4j\jcl-over-slf4j\1.7.10\jcl-over-slf4j-1.7.10.jar;C:\Users\hs\.m2\repository\com\datastax\cassandra\cassandra-driver-dse\2.0.4\cassandra-driver-dse-2.0.4.jar;C:\Users\hs\.m2\repository\com\datastax\cassandra\cassandra-driver-core\2.0.4\cassandra-driver-core-2.0.4.jar;C:\Users\hs\.m2\repository\io\netty\netty\3.9.0.Final\netty-3.9.0.Final.jar;C:\Users\hs\.m2\repository\com\codahale\metrics\metrics-core\3.0.2\metrics-core-3.0.2.jar;C:\Users\hs\.m2\repository\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\hs\.m2\repository\org\liquibase\liquibase-core\3.1.1\liquibase-core-3.1.1.jar;C:\Users\hs\.m2\repository\org\yaml\snakeyaml\1.13\snakeyaml-1.13.jar;C:\Users\hs\.m2\repository\ch\qos\logback\logback-classic\1.1.2\logback-classic-1.1.2.jar;C:\Users\hs\.m2\repository\ch\qos\logback\logback-core\1.1.2\logback-core-1.1.2.jar;C:\Users\hs\.m2\repository\org\springframework\integration\spring-integration-core\4.1.2.RELEASE\spring-integration-core-4.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\projectreactor\reactor-core\1.1.4.RELEASE\reactor-core-1.1.4.RELEASE.jar;C:\Users\hs\.m2\repository\com\goldmansachs\gs-collections\5.0.0\gs-collections-5.0.0.jar;C:\Users\hs\.m2\repository\com\goldmansachs\gs-collections-api\5.0.0\gs-collections-api-5.0.0.jar;C:\Users\hs\.m2\repository\com\lmax\disruptor\3.2.1\disruptor-3.2.1.jar;C:\Users\hs\.m2\repository\io\gatling\jsr166e\1.0\jsr166e-1.0.jar;C:\Users\hs\.m2\repository\org\springframework\retry\spring-retry\1.1.1.RELEASE\spring-retry-1.1.1.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\spring-messaging\4.1.4.RELEASE\spring-messaging-4.1.4.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\integration\spring-integration-stream\4.1.2.RELEASE\spring-integration-stream-4.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\integration\spring-integration-xml\4.1.2.RELEASE\spring-integration-xml-4.1.2.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\spring-oxm\4.1.4.RELEASE\spring-oxm-4.1.4.RELEASE.jar;C:\Users\hs\.m2\repository\org\springframework\ws\spring-xml\2.2.0.RELEASE\spring-xml-2.2.0.RELEASE.jar;C:\Users\hs\.m2\repository\com\jayway\jsonpath\json-path\1.2.0\json-path-1.2.0.jar;C:\Users\hs\.m2\repository\net\minidev\json-smart\2.1.0\json-smart-2.1.0.jar;C:\Users\hs\.m2\repository\net\minidev\asm\1.0.2\asm-1.0.2.jar;C:\Users\hs\.m2\repository\asm\asm\3.3.1\asm-3.3.1.jar;C:\Users\hs\.m2\repository\org\springframework\integration\spring-integration-kafka\1.0.0.RELEASE\spring-integration-kafka-1.0.0.RELEASE.jar;C:\Users\hs\.m2\repository\org\apache\avro\avro-compiler\1.7.6\avro-compiler-1.7.6.jar;C:\Users\hs\.m2\repository\org\apache\avro\avro\1.7.6\avro-1.7.6.jar;C:\Users\hs\.m2\repository\org\codehaus\jackson\jackson-core-asl\1.9.13\jackson-core-asl-1.9.13.jar;C:\Users\hs\.m2\repository\org\codehaus\jackson\jackson-mapper-asl\1.9.13\jackson-mapper-asl-1.9.13.jar;C:\Users\hs\.m2\repository\com\thoughtworks\paranamer\paranamer\2.3\paranamer-2.3.jar;C:\Users\hs\.m2\repository\org\xerial\snappy\snappy-java\1.0.5\snappy-java-1.0.5.jar;C:\Users\hs\.m2\repository\org\apache\commons\commons-compress\1.4.1\commons-compress-1.4.1.jar;C:\Users\hs\.m2\repository\org\tukaani\xz\1.0\xz-1.0.jar;C:\Users\hs\.m2\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar;C:\Users\hs\.m2\repository\org\apache\velocity\velocity\1.7\velocity-1.7.jar;C:\Users\hs\.m2\repository\commons-collections\commons-collections\3.2.1\commons-collections-3.2.1.jar;C:\Users\hs\.m2\repository\com\yammer\metrics\metrics-annotation\2.2.0\metrics-annotation-2.2.0.jar;C:\Users\hs\.m2\repository\com\yammer\metrics\metrics-core\2.2.0\metrics-core-2.2.0.jar;C:\Users\hs\.m2\repository\org\apache\kafka\kafka_2.10\0.8.1.1\kafka_2.10-0.8.1.1.jar;C:\Users\hs\.m2\repository\org\apache\zookeeper\zookeeper\3.3.4\zookeeper-3.3.4.jar;C:\Users\hs\.m2\repository\log4j\log4j\1.2.15\log4j-1.2.15.jar;C:\Users\hs\.m2\repository\javax\mail\mail\1.4\mail-1.4.jar;C:\Users\hs\.m2\repository\javax\activation\activation\1.1\activation-1.1.jar;C:\Users\hs\.m2\repository\javax\jms\jms\1.1\jms-1.1.jar;C:\Users\hs\.m2\repository\com\sun\jdmk\jmxtools\1.2.1\jmxtools-1.2.1.jar;C:\Users\hs\.m2\repository\com\sun\jmx\jmxri\1.2.1\jmxri-1.2.1.jar;C:\Users\hs\.m2\repository\jline\jline\0.9.94\jline-0.9.94.jar;C:\Users\hs\.m2\repository\net\sf\jopt-simple\jopt-simple\3.2\jopt-simple-3.2.jar;C:\Users\hs\.m2\repository\org\scala-lang\scala-library\2.10.1\scala-library-2.10.1.jar;C:\Users\hs\.m2\repository\com\101tec\zkclient\0.3\zkclient-0.3.jar;C:\Program Files (x86)\JetBrains\IntelliJ IDEA 13.1.6\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain com.agillic.dialogue.kafka.outbound.SpringKafkaTest
15:39:11.736 [main] INFO  o.s.i.k.support.ProducerFactoryBean - Using producer properties => {metadata.broker.list=172.16.1.42:9092, compression.codec=0}
2015-02-19 15:39:12 INFO  VerifiableProperties:68 - Verifying properties
2015-02-19 15:39:12 INFO  VerifiableProperties:68 - Property compression.codec is overridden to 0
2015-02-19 15:39:12 INFO  VerifiableProperties:68 - Property metadata.broker.list is overridden to 172.16.1.42:9092
15:39:12.164 [main] INFO  o.s.b.f.config.PropertiesFactoryBean - Loading properties file from URL [jar:file:/C:/Users/hs/.m2/repository/org/springframework/integration/spring-integration-core/4.1.2.RELEASE/spring-integration-core-4.1.2.RELEASE.jar!/META-INF/spring.integration.default.properties]
15:39:12.208 [main] DEBUG o.s.i.k.o.KafkaProducerMessageHandler - org.springframework.integration.kafka.outbound.KafkaProducerMessageHandler@5204db6b received message: GenericMessage [payload=foo, headers={timestamp=1424356752208, id=00c483d9-ecf8-2937-4a2c-985bd3afcae4, topic=test-cass, messagekey=3}]
Exception in thread "main" org.springframework.messaging.MessageHandlingException: error occurred in message handler [org.springframework.integration.kafka.outbound.KafkaProducerMessageHandler@5204db6b]; nested exception is java.lang.NullPointerException
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:84)
    at com.agillic.dialogue.kafka.outbound.SpringKafkaTest.main(SpringKafkaTest.java:40)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.lang.NullPointerException
    at org.springframework.integration.kafka.support.KafkaProducerContext.getTopicConfiguration(KafkaProducerContext.java:58)
    at org.springframework.integration.kafka.support.KafkaProducerContext.send(KafkaProducerContext.java:190)
    at org.springframework.integration.kafka.outbound.KafkaProducerMessageHandler.handleMessageInternal(KafkaProducerMessageHandler.java:81)
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)
    ... 6 more

Process finished with exit code 1

推荐答案

实际上，当我们引入 KafkaHeaders 时，我们做了适当的文档更改:https://github.com/spring-projects/spring-integration-kafka/blob/master/README.md.请参阅重要说明:

Actually when we introduced KafkaHeaders we did appropriate documentation changes: https://github.com/spring-projects/spring-integration-kafka/blob/master/README.md. See Important note:

自上一个里程碑以来，我们引入了带有常量的 KafkaHeaders 接口.messageKey 和主题默认标头现在需要 kafka_ 前缀.从早期版本迁移时，您需要在 上指定 message-key-expression="headers.messageKey" 和 topic-expression="headers.topic" ，或者简单地使用 或 将上游标头更改为来自 KafkaHeaders 的新标头消息生成器.或者，当然，如果您使用常量值，请在适配器上配置它们.

Since the last Milestone, we have introduced the KafkaHeaders interface with constants. The messageKey and topic default headers now require a kafka_ prefix. When migrating from an earlier version, you need to specify message-key-expression="headers.messageKey" and topic-expression="headers.topic" on the , or simply change the headers upstream to the new headers from KafkaHeaders using a or MessageBuilder. Or, of course, configure them on the adapter if you are using constant values.

更新

关于NullPointerException:这确实是一个问题.随意提出一个 JIRA 票，我们会处理的.我们甚至欢迎贡献！

Regarding NullPointerException: it's really an issue. Feel free to raise a JIRA ticket and we'll take care of that. We are even welcome for the contribution!

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