Java 应用程序无法启动Spring启动

我有一个使用Spring Boot的框架，它包含一个控制器

RestController

类

@RequestMapping("/details")
@RestController
public class DataController {
    private KafkaStreams kafkaStreams;

    public DataController(KafkaStreams kafkaStreams) {
        this.kafkaStreams = kafkaStreams;
    }

    @Autowired
    DataService dataService;

    @RequestMapping(value = "getAllDetails", method = RequestMethod.GET)
    public boolean getAllDetails(KafkaStreams kafkaStreams) {
        return ktableService.getAllDetails(kafkaStreams);
    }
}

在我的服务实现类中，我使用这个

kafkaStreams

对象来查找我的不同服务的详细信息

现在我在我的另一个应用程序中使用这个框架作为依赖项，其中我有一个runner类

import org.apache.kafka.streams.KafkaStreams;
@Component
public class PipelineRunner {
    private final StreamsBuilder streamsBuilder;
    private final KafkaProperties kafkaProperties;
    private final SerdesExt serdesExt;

    @Autowired
    public PipelineRunner(StreamsBuilder streamsBuilder, KafkaProperties kafkaProperties, SerdesExt serdesExt) {
        this.streamsBuilder = streamsBuilder;
        this.kafkaProperties = kafkaProperties;
        this.serdesExt = serdesExt;
    }

    @PostConstruct
    public void run() {
        ReflectData.AllowNull.get().addStringable(Utf8.class);
        ReflectData.get().addStringable(Utf8.class);
        DataProcessor processor = new DataProcessor(streamsBuilder, kafkaProperties,
                serdesExt);
        start();
    }

    private void start() {
        KafkaStreams kafkaStreams = new KafkaStreams(streamsBuilder.build(),
                kafkaProperties.getKafkaStreamsProperties(serdesExt));
        System.out.println("----Its is started----");
        DataController controller = new DataController(kafkaStreams);
        kafkaStreams.start();

    }
}

在这个类中，我试图为

DataController

创建对象

所以当我尝试运行应用程序类时

@SpringBootApplication(scanBasePackages = { "framework package" })
@EnableConfigurationProperties(KafkaProperties.class)
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

我得到了这个错误

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of constructor in frameworkpackage.controllers.DataController required a bean of type 'org.apache.kafka.streams.KafkaStreams' that could not be found.


Action:

Consider defining a bean of type 'org.apache.kafka.streams.KafkaStreams' in your configuration.

我不熟悉弹簧靴。所以我可能做错了什么。如果需要更多信息，我可以提供

更新

我的pom文件

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
    </parent>

    <properties>
        <confluent.version>4.1.0</confluent.version>
        <kafka.version>1.1.0</kafka.version>
        <lombok.version>1.18.0</lombok.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>io.confluent</groupId>
            <artifactId>kafka-avro-serializer</artifactId>
            <version>${confluent.version}</version>
        </dependency>
        <dependency>
            <groupId>io.confluent</groupId>
            <artifactId>kafka-streams-avro-serde</artifactId>
            <version>${confluent.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka-streams</artifactId>
            <version>${kafka.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka-clients</artifactId>
            <version>${kafka.version}</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-avro</artifactId>
            <version>2.8.5</version>
        </dependency>

    </dependencies>

org.springframework.boot
spring启动程序父级
2.0.2.1发布
4.1.0
1.1.0
1.18.0
org.springframework.boot
弹簧靴起动器
org.springframework.boot
spring引导配置处理器
真的
org.springframework.boot
SpringBootStarterWeb
合流的
卡夫卡avro序列化程序
${confluent.version}
合流的
卡夫卡河酒店
${confluent.version}
org.apache.kafka
卡夫卡河
${kafka.version}
org.apache.kafka
卡夫卡客户
${kafka.version}
org.projectlombok
龙目
${lombok.version}
测试
com.fasterxml.jackson.dataformat
jackson数据格式avro
2.8.5

问题是您试图在类DataController中使用beankafkaStreams，但在Spring上下文中没有具有此名称的bean。您需要手动创建它，以便以后可以自动关联它

在您的情况下，我建议如下更新PipelineRunner.java：

import javax.annotation.PostConstruct;
import org.apache.kafka.streams.KafkaStreams;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;

@Component
public class PipelineRunner
{
    private final StreamsBuilder streamsBuilder;
    private final KafkaProperties kafkaProperties;
    private final SerdesExt serdesExt;


    @Autowired
    public PipelineRunner(StreamsBuilder streamsBuilder, KafkaProperties kafkaProperties, SerdesExt serdesExt)
    {
        this.streamsBuilder = streamsBuilder;
        this.kafkaProperties = kafkaProperties;
        this.serdesExt = serdesExt;
    }


    @PostConstruct
    public void run()
    {
        ReflectData.AllowNull.get().addStringable(Utf8.class);
        ReflectData.get().addStringable(Utf8.class);
        DataProcessor processor = new DataProcessor(streamsBuilder, kafkaProperties,
            serdesExt);
        start();
    }


    @Bean
    KafkaStreams kafkaStreams()
    {
        KafkaStreams kafkaStreams = new KafkaStreams(
            streamsBuilder.build(),
            kafkaProperties.getKafkaStreamsProperties(serdesExt));
        System.out.println("----Its is started----");
        kafkaStreams.start();
        return kafkaStreams;
    }
}

您不需要自己创建DataController实例，这将由Spring自动完成

---

关于Spring对Bean的方法的更多信息可用

您是否添加了Kafka Streams

Spring启动程序

依赖项？使用

pom.xml

或

build.gradle

更新问题将提供更多信息。@BranislavLazic添加了pom文件我不知道如何使用Spring boot配置Kafka，但我认为您的

私有KafkaStreams KafkaStreams应该自动连接或注入到构造函数中（基于日志）@MickaëlB是的。我以为Spring Boot会自动配置它。但是没有。似乎他必须手动定义
KafkaStreams
bean。@MikaëlB我尝试在私有KafkaStreams KafkaStreams中添加自动连线；但面对同样的问题