Spring将XML集成到Java
如何将此代码转换为Java配置Spring将XML集成到Java,java,spring,spring-integration,Java,Spring,Spring Integration,如何将此代码转换为Java配置 <int-kafka:outbound-channel-adapter id="mainOutboundChannelAdapter" kafka-producer-context-ref="kafkaProducerContext" channel="mainOutboundTopicChanel"> </int-kafka:outbound-channel-adapter> 是的,你可以
<int-kafka:outbound-channel-adapter
id="mainOutboundChannelAdapter"
kafka-producer-context-ref="kafkaProducerContext"
channel="mainOutboundTopicChanel">
</int-kafka:outbound-channel-adapter>
是的,你可以。请查找最新的: 您的案例可能如下所示:
@Bean
public IntegrationFlow sendToKafkaFlow(String serverAddress) {
return f -> f.<String>split(p -> FastList.newWithNValues(100, () -> p), null)
.handle(kafkaMessageHandler(serverAddress));
}
private KafkaProducerMessageHandlerSpec kafkaMessageHandler(String serverAddress) {
return Kafka.outboundChannelAdapter(props -> props.put("queue.buffering.max.ms", "15000"))
.messageKey(m -> m.getHeaders().get(IntegrationMessageHeaderAccessor.SEQUENCE_NUMBER))
.addProducer(TEST_TOPIC, serverAddress, this::producer);
}
private void producer(KafkaProducerMessageHandlerSpec.ProducerMetadataSpec metadata) {
metadata.async(true)
.batchNumMessages(10)
.valueClassType(String.class)
.<String>valueEncoder(String::getBytes)
.keyEncoder(new IntEncoder(null));
}
当我们转到KafkaOutboundChannelAdapterParser
并看到它填充了BeanDefinition
:
final BeanDefinitionBuilder kafkaProducerMessageHandlerBuilder =
BeanDefinitionBuilder.genericBeanDefinition(KafkaProducerMessageHandler.class);
等等的源代码
更新2
消费者
部分:
@Bean
@InboundChannelAdapter(value = "fromKafkaChannel",
poller = @Poller(fixedRate = "10", maxMessagesPerPoll = "1"))
public MessageSource<Map<String, Map<Integer, List<Object>>>> kafkaMessageSource() {
return new KafkaHighLevelConsumerMessageSource<String, String>();
}
@Bean
public KafkaConsumerContext<String, String> kafkaConsumerContext() {
KafkaConsumerContext<String, String> kafkaConsumerContext = new KafkaConsumerContext<String, String>();
.....
kafkaConsumerContext.setConsumerConfigurations(map);
return kafkaConsumerContext;
}
@Bean
@InboundChannelAdapter(value=“fromKafkaChannel”,
轮询器=@poller(fixedRate=“10”,maxMessagesPerPoll=“1”))
public MessageSource kafkaMessageSource(){
返回新的KafkaHighLevelConsumerMessageSource();
}
@豆子
公共KafkaConsumerContext KafkaConsumerContext(){
KafkaConsumerContext KafkaConsumerContext=新的KafkaConsumerContext();
.....
kafkaConsumerContext.setConsumerConfiguration(地图);
返回kafkaConsumerContext;
}
Hi Artem,谢谢您的回复,我以前也看过这些答案。由于Java8Lambda的特性,我觉得人们会把目光从这些方面移开。对于那些仍然不懂Java8的人来说,常规java可能会更有帮助。。。我理解你(和其他人)的担忧。。。请在我的答案中找到更新。谢谢,作为一名初级开发人员,我仍然在学习如何深入不同的场景等等。你的代码非常有用。如果这不是太多的要求,您是否也会用java配置发布相应的ConsumerContext?我在谷歌上似乎找不到一个稳定的教程。请在我的答案中找到@InboundChannelAdapter
的更新。请随意为Java配置文档提出一个GitHub问题()。你不知道我被困在这上面多久了。非常感谢。
final BeanDefinitionBuilder kafkaProducerMessageHandlerBuilder =
BeanDefinitionBuilder.genericBeanDefinition(KafkaProducerMessageHandler.class);
@Bean
@InboundChannelAdapter(value = "fromKafkaChannel",
poller = @Poller(fixedRate = "10", maxMessagesPerPoll = "1"))
public MessageSource<Map<String, Map<Integer, List<Object>>>> kafkaMessageSource() {
return new KafkaHighLevelConsumerMessageSource<String, String>();
}
@Bean
public KafkaConsumerContext<String, String> kafkaConsumerContext() {
KafkaConsumerContext<String, String> kafkaConsumerContext = new KafkaConsumerContext<String, String>();
.....
kafkaConsumerContext.setConsumerConfigurations(map);
return kafkaConsumerContext;
}