SmallRye反应式消息传递&x27；s发射器<>；。发送不'；t通过与Quarkus的AMQP代理发送Kotlin

目前，我正试图在Kotlin中编写一个基于Maven、Quarkus和SmallRye反应式消息传递的“通知服务”。 作为一个基础，我有一个Java示例，它运行良好，我试图将其“翻译”为Kotlin

我希望它工作的方式是，我发送一个HTTP请求（例如GET{word}），系统将“word”（这里是一个字符串）发送到Artemis AMQP消息代理的队列“querys”。 另一个系统订阅MessageBroker，并根据HTTP请求（例如GET）获取队列“查询”中的“单词”

然而，在Kotlin中，它不起作用，我最好的猜测是，发射器不像Java那样发送“单词”

下面是我正在使用的代码：

Kotlin

发送

import io.smallrye.reactive.messaging.annotations.Emitter
import io.smallrye.reactive.messaging.annotations.Stream
import javax.ws.rs.GET
import javax.ws.rs.Path
import javax.ws.rs.PathParam


@Path("/search")
class ExampleService {


    @Stream("queries")
    val queryEmitter: Emitter<String>? = null



    @GET
    @Path("/{word}")
    fun search(@PathParam("word") word: String?): String {

        println("about to send word: " + word!!)

        if (word.isNotEmpty()) {

            var qE=queryEmitter?.send(word)
            println("Emitter return : $qE")
            return word
        }
        return "word was empty"
    }


}

import org.eclipse.microprofile.reactive.messaging.Incoming
import javax.ws.rs.GET
import javax.ws.rs.Path
import javax.ws.rs.Produces
import javax.ws.rs.core.MediaType


@Path("/receiver")
class AdsResource {


    var word : String = "nothing happened so far"

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    fun getWords(): String {
        return word
    }


    @Incoming("sink")
    fun consume(message: String) {
        println("got user query: $message")
        word = message
    }
}

import io.smallrye.reactive.messaging.annotations.Emitter;
import io.smallrye.reactive.messaging.annotations.Stream;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;



@Path("/search")
public class SearchEndpoint {

    @Stream("queries")
    Emitter<String> queryEmitter;


    @GET
    @Path("/{word}")
    public String search(@PathParam("word") String word) {

        System.out.println("about to send word: " + word);

        if (!word.isEmpty()) {

            Emitter<String> qE = queryEmitter.send(word);
            System.out.println("Emitter return: " + qE);
            return word;
        }

        return "word was empty" ;
    }

}

import org.eclipse.microprofile.reactive.messaging.Incoming;
import javax.ws.rs.GET;
import javax.ws.rs.Path;


@Path("/receiver")
public class AdsResource {

   private String word = "";


   @GET
   public String getAd() {
      System.out.println("got user query: " + word);
      return word;
   }
   @Incoming("sink")
   public void consume(String message) {
      System.out.println("got user query: " + message);
      word = message;
   }


}

这是Java版本

发送

import io.smallrye.reactive.messaging.annotations.Emitter
import io.smallrye.reactive.messaging.annotations.Stream
import javax.ws.rs.GET
import javax.ws.rs.Path
import javax.ws.rs.PathParam


@Path("/search")
class ExampleService {


    @Stream("queries")
    val queryEmitter: Emitter<String>? = null



    @GET
    @Path("/{word}")
    fun search(@PathParam("word") word: String?): String {

        println("about to send word: " + word!!)

        if (word.isNotEmpty()) {

            var qE=queryEmitter?.send(word)
            println("Emitter return : $qE")
            return word
        }
        return "word was empty"
    }


}

import org.eclipse.microprofile.reactive.messaging.Incoming
import javax.ws.rs.GET
import javax.ws.rs.Path
import javax.ws.rs.Produces
import javax.ws.rs.core.MediaType


@Path("/receiver")
class AdsResource {


    var word : String = "nothing happened so far"

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    fun getWords(): String {
        return word
    }


    @Incoming("sink")
    fun consume(message: String) {
        println("got user query: $message")
        word = message
    }
}

import io.smallrye.reactive.messaging.annotations.Emitter;
import io.smallrye.reactive.messaging.annotations.Stream;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;



@Path("/search")
public class SearchEndpoint {

    @Stream("queries")
    Emitter<String> queryEmitter;


    @GET
    @Path("/{word}")
    public String search(@PathParam("word") String word) {

        System.out.println("about to send word: " + word);

        if (!word.isEmpty()) {

            Emitter<String> qE = queryEmitter.send(word);
            System.out.println("Emitter return: " + qE);
            return word;
        }

        return "word was empty" ;
    }

}

import org.eclipse.microprofile.reactive.messaging.Incoming;
import javax.ws.rs.GET;
import javax.ws.rs.Path;


@Path("/receiver")
public class AdsResource {

   private String word = "";


   @GET
   public String getAd() {
      System.out.println("got user query: " + word);
      return word;
   }
   @Incoming("sink")
   public void consume(String message) {
      System.out.println("got user query: " + message);
      word = message;
   }


}

下面是Kotlin和Java的配置文件application.properties

# Configures the AMQP broker credentials.
amqp-username=quarkus
amqp-password=quarkus

# Configure the AMQP connector to write to the `queries `  address
mp.messaging.outgoing.queries.connector=smallrye-amqp
mp.messaging.outgoing.queries.address=sink
mp.messaging.outgoing.queries.durable=true


# Configure the AMQP connector to read from the `queries ` queue
mp.messaging.incoming.sink.connector=smallrye-amqp
mp.messaging.incoming.sink.durable=true

一些信息：

• 我在docker中运行的AMQP消息代理就是基于此编写的

---

提前感谢，如果我没有提供信息，请告诉我。

问题归结为Kotlin在字节码中添加了

@Stream

注释

基本上，要解决您的问题，您需要更换：

@Stream("queries")

与

---

您好，您是否尝试将

@Inject

添加到用

@Stream

注释的字段中？我怀疑这是问题所在，但只是想涵盖所有基本内容。那么，您是否在github上同时拥有这两个版本，以便我可以试一试？您好@Geo，“@Inject”不幸的是，也只会给我一个“未满足的解决方案例外：未满足的依赖关系”错误：这是Github项目的链接。提前谢谢。这个周末我会去看看的希望嘿，非常感谢。工作完美。然而，我不明白有什么区别。你能简单地解释一下发生了什么吗？很高兴听到！我在这里基本上描述了这个问题：