Spring Boot项目无ElasticSearch依赖却尝试连接该数据库的问题

云原生阿岚

2026-8-20

问题：未引入ElasticSearch依赖的Spring Boot项目启动时出现ES连接拒绝错误

我的Spring Boot项目仅配置了MySQL依赖与连接属性，完全未引入任何ElasticSearch相关依赖、插件及配置，但启动时控制台反复抛出ElasticSearch连接拒绝的报错。已重装IntelliJ IDEA，问题依旧。

控制台错误日志

2022-09-01 14:24:29 INFO  o.s.d.r.c.RepositoryConfigurationExtensionSupport - Spring Data Elasticsearch - Could not safely identify store assignment for repository candidate interface it.ProjectMiC.readformatopacchetto.repository.DepositatoreRepository. If you want this repository to be a Elasticsearch repository, consider annotating your entities with one of these annotations: org.springframework.data.elasticsearch.annotations.Document (preferred), or consider extending one of the following types with your repository: org.springframework.data.elasticsearch.repository.ElasticsearchRepository, org.springframework.data.elasticsearch.repository.ElasticsearchRepository.
2022-09-01 14:24:29 INFO  o.s.d.r.c.RepositoryConfigurationExtensionSupport - Spring Data Elasticsearch - Could not safely identify store assignment for repository candidate interface it.ProjectMiC.readformatopacchetto.repository.FormatoValidazionePacchettoRepository. If you want this repository to be a Elasticsearch repository, consider annotating your entities with one of these annotations: org.springframework.data.elasticsearch.annotations.Document (preferred), or consider extending one of the following types with your repository: org.springframework.data.elasticsearch.repository.ElasticsearchRepository, org.springframework.data.elasticsearch.repository.ElasticsearchRepository.
2022-09-01 14:24:29 INFO  o.s.d.r.c.RepositoryConfigurationExtensionSupport - Spring Data Elasticsearch - Could not safely identify store assignment for repository candidate interface it.ProjectMiC.readformatopacchetto.repository.TipoFormatoRepository. If you want this repository to be a Elasticsearch repository, consider annotating your entities with one of these annotations: org.springframework.data.elasticsearch.annotations.Document (preferred), or consider extending one of the following types with your repository: org.springframework.data.elasticsearch.repository.ElasticsearchRepository, org.springframework.data.elasticsearch.repository.ElasticsearchRepository.
2022-09-01 14:24:29 INFO  o.s.d.r.c.RepositoryConfigurationExtensionSupport - Spring Data Elasticsearch - Could not safely identify store assignment for repository candidate interface it.ProjectMiC.readformatopacchetto.repository.ValidazioneRepository. If you want this repository to be a Elasticsearch repository, consider annotating your entities with one of these annotations: org.springframework.data.elasticsearch.annotations.Document (preferred), or consider extending one of the following types with your repository: org.springframework.data.elasticsearch.repository.ElasticsearchRepository, org.springframework.data.elasticsearch.repository.ElasticsearchRepository.
2022-09-01 14:24:29 INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 62 ms. Found 0 Elasticsearch repository interfaces.
2022-09-01 14:24:29 INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Multiple Spring Data modules found, entering strict repository configuration mode!
2022-09-01 15:40:33 ERROR o.elasticsearch.client.sniff.Sniffer - error while sniffing nodes
java.net.ConnectException: Connection refused: no further information
    at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:918)
    at org.elasticsearch.client.RestClient.performRequest(RestClient.java:299)
    at org.elasticsearch.client.RestClient.performRequest(RestClient.java:287)
    at org.elasticsearch.client.sniff.ElasticsearchNodesSniffer.sniff(ElasticsearchNodesSniffer.java:106)
    at org.elasticsearch.client.sniff.Sniffer.sniff(Sniffer.java:209)
    at org.elasticsearch.client.sniff.Sniffer$Task.run(Sniffer.java:140)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
    at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.net.ConnectException: Connection refused: no further information
    at java.base/sun.nio.ch.Net.pollConnect(Native Method)
    at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:672)
    at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946)
    at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:174)
    at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:148)
    at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351)
    at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221)
    at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
    ... 1 common frames omitted

项目pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>it.Project-MiC</groupId>
    <artifactId>readformatopacchetto</artifactId>
    <version>0.0.1</version>
    <name>readformatopacchetto</name>
    <description>Spring Boot Project for readformatopacchetto Application</description>
    <properties>
        <java.version>1.8</java.version>
        <org.mapstruct.version>1.5.2.Final</org.mapstruct.version>
        <projectlombok.version>1.18.22</projectlombok.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mapstruct</groupId>
            <artifactId>mapstruct</artifactId>
            <version>${org.mapstruct.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>com.vladmihalcea</groupId>
            <artifactId>hibernate-types-52</artifactId>
            <version>2.16.2</version>
        </dependency>
        <dependency>
            <groupId>com.codahale.metrics</groupId>
            <artifactId>metrics-core</artifactId>
            <version>3.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>${commons-lang3.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-ui</artifactId>
            <version>1.6.4</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.mockito/mockito-core -->
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>4.7.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.derby</groupId>
            <artifactId>derby</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.22.2</version>
                <configuration>
                    <skipTests>true</skipTests>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>9</source> <!-- depending on your project -->
                    <target>9</target> <!-- depending on your project -->
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.mapstruct</groupId>
                            <artifactId>mapstruct-processor</artifactId>
                            <version>${org.mapstruct.version}</version>
                        </path>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>${projectlombok.version}</version>
                        </path>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok-mapstruct-binding</artifactId>
                            <version>0.2.0</version>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

解决方案

原因分析

问题根源在于：

Spring Data自动扫描Repository时，因未明确指定Repository类型，会尝试匹配所有Spring Data模块，触发了ElasticSearch相关的检测逻辑。
可能存在间接依赖（如Actuator或其他组件）引入了ElasticSearch客户端相关jar包，导致Spring Boot自动初始化ES连接。

具体解决步骤

排除ElasticSearch自动配置类
在Spring Boot启动类上添加排除配置，禁止ES相关自动配置加载：

@SpringBootApplication(exclude = {
    ElasticsearchDataAutoConfiguration.class,
    ElasticsearchRestClientAutoConfiguration.class
})
public class ReadformatopacchettoApplication {
    public static void main(String[] args) {
        SpringApplication.run(ReadformatopacchettoApplication.class, args);
    }
}

明确指定JPA Repository扫描范围
通过@EnableJpaRepositories指定JPA Repository所在包，让Spring Data仅扫描JPA相关的Repository：

@SpringBootApplication
@EnableJpaRepositories(basePackages = "it.ProjectMiC.readformatopacchetto.repository")
public class ReadformatopacchettoApplication {
    public static void main(String[] args) {
        SpringApplication.run(ReadformatopacchettoApplication.class, args);
    }
}

检查并排除间接依赖
执行mvn dependency:tree命令查看依赖树，若发现有间接引入的ElasticSearch模块，在对应依赖中添加排除项：

<dependency>
    <!-- 替换为实际引入ES的依赖 -->
    <groupId>xxx</groupId>
    <artifactId>xxx</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </exclusion>
        <exclusion>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-client</artifactId>
        </exclusion>
    </exclusions>
</dependency>

内容的提问来源于stack exchange，提问作者Java

Spring Boot项目无ElasticSearch依赖却尝试连接该数据库的问题

控制台错误日志 #

项目pom.xml文件 #

解决方案 #

原因分析 #

具体解决步骤 #

控制台错误日志

项目pom.xml文件

解决方案

原因分析

具体解决步骤